DIESTER COMPOSITION AND TEXTILE PROCESSING COMPOSITIONS THEREFROM

Abstract: A cycloaliphatic diester of the formula (FORMULA) wherein R is straight or branched chain alkyl of 4-20 carbon atoms, polyoxyalkylene of the formula HO(CH<u2>uCH<u2>uO)<un>uCH<u2>uCH<u2>u-, HO(C<u3>uH<u6>uO)<un>uC<u3>uH<u6>u-, HO(CH<u2>uCH<u2>uO)<un>u(C<u3>uH<u6>uO)-<uq>uC<u3>uH<u6>u-, or HO(C<u3>uH<u6>uO)<un>u(C<u2>uH<u4>uO)<uq>uC<u2>uH<u4>u- or phosphated polyoxyalkylene, wherein n is 2-22 and the sum of p + q is n, in combination with a high boiling aromatic ester, is useful in fiber treating and textile processing compositions.

Description: DIESTER COMPOSITION AND TEXTILE PROCESSING COMPOSITIONS THEREFROM Cross-Reference to Related Applications This is a continuation-in-part of Serial No. 090,092, filed November 1, 1979 in the United States Patent Office. Technical Field This invention relates to a combination" of cyclo- aliphatic diesters and high boiling aromatic esters and their use in fiber-treating and textile processing compositions. Background Art It has bG&n proposed by Stur old et al, in U. S. Patent 3,925,589, to use emulsions of esters derived from polyoxy-alJylene glycols of molecular weight 300-4000 and a dibasic acid mixture of a dimer acid of 32-54 carbon atoms and a short chain dibasic acid of 2-12 carbon atoms for lubricating polyamide fibers. Dumont, in U. S. Patent 3,694,257, has proposed the use of polyesters prepared from reaction of polyols with a di- or tribasic acid as textile assistants for softening textile fabrics. It has been proposed by Crovatt, Jr., in U. S. Patent 3,329,633, to improve the lubricity of poly- hexamethylene adipamide fibers by adding 0.1 - 5.0% OMPI by weight of oleic acid dimer to the polymer during the final polymerization stage thereof. Bishop et al, in ϋ. S. Patent 4,135,878, has disclosed inclusion of up to 10% by weight of a dimer acid in an emulsifier-solvent scour composition used for treating textile materials under alkaline conditions. Preparation of adducts from conjugated octa- decadienoic acid and unsaturated acids and/or their hydrogenation has been described by Teeter et al, __■ £___ Chem. , vol. 22 (1957) at 512-514, Ward in . U. S. Patent 3,899,476 and. Ward et al in U. S_ Patent 3,981,682. The preparation of esters from the C-i diacid adduct. was reported by Ward et al, J. Amer. Oil Chemists' Soc., vol. 57 (1975) at 219-224, Ethoxyla- ted esters containing 4-119 ethylene oxide units are said to be particularly effective lime soap disper- • sants. The alkyl esters are reported as being par- ticularly useful in lubricant applications, including uses as textile lubricants and plasticizers for PVC. The use of lower aromatic esters in textile treatment, particularly as dyeing assistants is well known, as is .disclosed in ϋ. S. Patents: 2,880,050 Fortress et al 2,881,045 Mecco et al 3,036,876 Schoellig et al 3,124,412 Fidell et al 3,929,407 Parker 3,932,128 Beaulieu References which disclose the use of phthalate esters in dyeing processes include U. S. Patents: 2,833,613 Hallada et al 2,934,397 Landerl 2,982,597 Salvin et al 3,667,899 Harnett et al 3,973,907 Forschirm 4,032,291 Dellian Phthalate esters have been used as components of lubricants for textiles, for example, by Jaeger (ϋ. S. Patent 2,212,369), Dickey et al (U. S. Patent 2,241,246), Brennan et al (U. S. Patent 2,882,231) and Iyengar et al (U. S. Patent 3,853,607). The use of hydroxyalkyl or alkoxyalkyl benzoates as dyeing assistants or fixatives is disclosed by Fuhr et al (ϋ. S. Patent 3,532,454), Baumann et al (U. S. Patent 3,950,419) and Lazar et al (U. S. Patent 3,917,447). Higher trialkyl trimellitates have been proposed by Hinton, Jr. et al as components of a soil release composition (ϋ. S. Patent 3,824,125). ♦ Disclosure of Invention It is an object of the invention to provide a novel combination of cycloaliphatic and high boiling aromatic esters which, used as ingredients of textile- processing agents, particularly for polyester fibers, eliminates one or more otherwise conventional pro¬ cessing steps without impairing the ultimate pro¬ perties of the fiber treated therewith. In one aspect of this invention, cycloaliphatic diesters of the formula wherein A is -CH^-CH-- and R is straight or branched chain alkyl of 4-20 carbon atoms, polyoxyalkylene of the formula HO(C χ H 0)_C χ H - or phosphated polyoxy¬ alkylene of the formula 0 (HO) 2 P-0(C χ H y O) n C χ H y or a salt thereof wherein (CxHyO)n is (CH_-.CH A.,0)n, (C3,H c θ0)n or (CH_-.CH<-sO)p(CJ„Ho c O q and n is 2-22 are combined with a high boiling aromatic ester of the formula ArCOO-R,-OOCAr or ArCOOR,, wherein Ar is monocyclic aryl of up to 10 carbon atoms; R, is alkylene of up to 8 carbon atoms, or polyoxy¬ alkylene of the formula " r H 2 ^°"" C r H 2r^s in whicil r is 2 and 3 and s is up to 15; and R 2 is alkyl or alkenyl of 8-30 carbon atoms, to provide a base for a multi-purpose fiber and textile-treating compo¬ sition. This invention further relates to a synthetic fiber or fabric coated with a trea ing-agent con- taining the foregoin composition. This invention further relates in the conversion of synthetic fibers to piece goods and subsequent dyeing, to the improvement wherein.a composition of this invention is the sole fiber-treating agent used. This invention also relates to a method of making fabric or an article from a synthetic fiber or fabric comprising coating the fiber or fabric with 1-2% by weight of a knitting or weaving lubricant comprising 5-15 parts by weight of cycloaliphatic diester, 30-50 parts by weight of high boiling aromatic ester, 5-15 parts by weight of dye-levelling agent and 10-30 parts by weight of emulsifiers, dispersing agents and/or anti-static agents; knitting or weaving the fiber into fabric or a knitted or woven article and dyeing the fabric or knit or woven article. This invention further relates to a method for treating a synthetic fiber comprising applying to the fiber to a pick-up of 0.4-0.75% by weight a spin finish comprising (1) a cycloaliphatic diester, (2) a high boiling aromatic diester and (3) a dye- levelling agent; texturing the thus-coated synthetic fiber at 180-230°C; knitting or weaving the resulting textured fiber into fabric or knitting the textured fiber into a knit article and dyeing the fabric or knit article. In another aspect, this invention relates to a method for lowering the heat history characteristics and the degree of crystallinity of a synthetic fiber, lowering the temperature at which the fiber can be texturized and lowering the temperature at which the fiber absorbs dye comprising applying to the fiber to a pick-up of 0.4 - 0.75% by weight of a composi¬ tion comprising a cycloaliphatic diester and a high boiling aromatic ester, wherein the ratio of cyclo¬ aliphatic" diester to high boiling aromatic ester is 0.1 : 1 to 2 : 1 and wherein the combination of cyclo¬ aliphatic diester and high boiling aromatic constitutes 10-90% by weight of the composition and texturing the thus-coated fiber at 180-230°C. Moreover, aforesaid composition can contain a dye-levelling agent of the formula R-3COOR4-. Brief Description of Drawings In Fig. 1-4 are shown representations of photo- micrographs of polyester yarn treated with the com¬ position of Example 15 and with a conventional spin finish composition. Best Mode of Carrying Out the Invention The dibasic acid employed in making the com- positions of this invention is a Diels-Alder adduct of acrylic acid and linoleic acid and can be pre¬ pared as described by Ward in ϋ. S. Patent 3,753,968. The diaσid has the formula n-C 6 H 13 (CΞ 2 ) 7 -COOH COOH and therefore is a mixture of (5 and 6)-carboxy-4- hexyl-2-cyclohexene-l-octanoic acids. The diacid is available commercially from Westvaco, designated as "Diacid 1500". The diacid can be esterified with alcohols using, for example, acidic catalysts such as p-toluene- sulfonic acid, methanesulfonic acid or sulfuric acid. During the esteri icatio , the reaction mixture is preferably also treated with a decolorizing agent, e.g., carbon or clay. The diacid is reduced following esterifica ion to a compound in which A is -CH-CH--. A nickel catalyst such as Raney Nickel, nickel on kieselguhr or nickel on alumina can be used. The required amount varies up to, 5 - 10% by weight of the ester. Hydrogenation is carried out after esterification to prevent nickel from complexing with the free acid. Other catalysts, e.g., platinum or rhodium, avoid this problem, but are prohibitive in cost. The catalyst can be removed by filtration through a plate and frame filter press. The product is the resulting filtrate. Polyoxyalkylene diesters are prepared by reac- tion of the diacid, in the presence of an alkaline catalyst, with ethylene or propylene oxide. Reaction will occur at both acid sites and addition of ethylene oxide is allowed to continue until the product be¬ comes at least dispersible or, preferably, soluble in water. This will correspond to addition of a total of 5-25 ethylene oxide units. The product obtained using ethylene oxide has a structure before hydrogenation represented by the formula: -OΞ HO- The phosphorylated product is readily obtained by reaction with phosphorus pentoxide. The saturated diester can be obtained by nickel-catalyzed hydro¬ genation. In the case of the phosphorylated derivative, hydrogenation should precede phosphorylation. The phosphorylated derivatives can be converted to salts thereof by reaction with a metal hydroxide. Sodium and potassium salts are preferred. It will be understood that the diesters used in the compositions of this invention have somewhat varying properties. However, the following general correlation between structure and properties of representative preferred diesters (hydrogenated form) can be made: dilauryl ester liquid, good heat stability, good lubricant bis(2-ethylhexyl)ester liquid, good heat stability, good lubricant distearyl ester solid, good heat stability, good lubricant bis(ethoxylated)ester solid, heat stable, cohesive (15 moles ethylene oxide) bis(phosphated ethoxy¬ solid, heat stable, cohesive, lated)ester (15 moles antistatic ethylene oxide) OMPI Preferred diesters for use in accordance with the principles of the invention are those wherein: A is -CH 2 CH 2 - and (a) R is straight or branched chain alkyl of 4-20 carbon atoms, (b) R is 2-ethylhexyl, lauryl or stearyl, (c) R is HOCCH- _CH_-OJnCH-_CH_--, (d) R is HO(C 3 H 6 0) n C 3 H 6 -, (e) R is HO(C 2 H 4 0) (C 3 H 6 0) C 3 H 6 -, and 0 11 (f) R is (HO) Δ n PO(CH- Δ,CH-0) Ti.CH- niCH- Δ- or a salt thereof. It will be understood that the textile-treating compositions can contain more than one diester, e.g., a mixture of bis(alkyl) esters or a mixture containing a bisalkyl ester in combination with a bis(polyoxy- alkylene) or bis(phosphate polyoxyalkylene) ester of a corresponding salt. "High boiling aromatic ester" ' as used in the specification and claims means an ester of the formula ArCOO-R,-OOCAr or ArCOOR 2 , wherein Ar is monocyclic aryl of up to 10 carbon atoms; R, is alkylene of 2-8 carbon atoms or polyoxyalkylene of the formula -C H 2 (O-C H 2 ) in which r is 2 or 3 and s is up to 15; and R 2 is alkyl or alkenyl of 8-30-carbon atoms. Accordingly, aromatic esters used in the prac¬ tice of this invention include, but are not limited to, esters of benzoic, toluic, dimethylbenzoic, trimethylbenzoic, butylbenzoic and similar acids. In the case of aromatic diesters, alkylene (R^) can be ethylene, propylene, hexylene, 2,2- -dimethyl-trimethylene, butylene, heptamethylene and octylene, including various isomers thereof. Polyoxyalkylene diesters include those derived from polyethylene glycol or polypropylene glycol. In the case of monoaromatic esters, alkyl can be octyl, nonyl, decyl, dodecyl, tridecyl, hexadecyl, stearyl and alkenyl can be any corresponding mono- unsaturated function, e.g., oleyl. Preferred aromatic diesters are those wherein: (a) Ar is phenyl, (b) Ar is tolyl, (c) R, is ethylene or propylene, including each of (a) and (b) , (d) R-, is ethyleneoxyethylene or propyleneoxy- propylene, including each of (a) and (b) , (e) R, is polyoxypropylene of molecular weight 200-500, including each of (a) and (b) , and (f) R 2 is decyl, dodecyl, hexadecyl, tridecyl, octadecyl or oleyl, including each of (a) and (b) . It has been found that aromatic esters falling outside of the foregoing definition, more particularly methyl, ethyl, propyl, butyl, pentyl and hexyl ben- zoates,' lack heat stability, low odor and lubricating properties required for the plurality of functions fulfilled by the compositions of this invention. Ξthoxylated castor oil used in the compositions will contain 15-100 oxyethylene units, preferably 40-85 The hydrogenated castor oil derivatives will contain 5-200 oxyethylene units, preferably 20-30. These materials can be purchased from ICI America and Whitestone Chemical. Ethoxylated alkyl phenols used in the composi¬ tions of this invention will contain up to 12 carbon atoms in the alkyl function and from 1-25 ethylene oxide units. Preferred examples are ethoxylated nonylphenol having 10-15 ethylene oxide units. Ethoxylated alkanols include those derived from 12-15 carbon alkanols, including mixtures there- of, or from secondary alcohols of 11-15 carbon atoms. also including mixtures, and containing 6-15 ethylene oxide units. Phosphated ethoxylated alkanols or phenols employed in the compositions of the invention will generally have fewer ethyleneoxide units than the unphosphated com¬ pounds. Exemplary, but not limitative, of the materials which can be used are the potassium salts of POΞ (10) nonylphenol phosphate, POΞ (3.5) lauryl alcohol phos¬ phate, POE (7) lauryl alcohol phosphate, POE (9) lauryl alcohol phosphate, POE (6) decyl alcohol phos¬ phate, and POE (9) decyl alcohol phosphate. It will be understood that the formula given for the phosphated ethoxylated derivatives includes various products, in¬ cluding phosphated mono- and diesters, obtained by reac- tion between the ethoxylated diacids and P 2 °5* • In many cases, the composition of this invention will be left on the fiber during dyeing and will there¬ fore, function as dyeing assistants, in which case. 10-25% by weight of a dye-ievelling agent will be in- eluded. "Dye-levelling agent", as used in the speci¬ fication and claims, will be of the formula R^COOR. , wherein R 4 is an ethoxylated alkylphenol residue of the formula 'a a 2a+l T Ό CH (CH-CH-O CH-CH-- \ / a is 0-12 and b is 1-24 or an ethoxylated alkanol re¬ sidue of the formula CH 3 (CH 2 ) c -0-(CH 2 CH 2 0) d -CH 2 CH 2 - σ is 7-12 and d is 1-24 and wherein R 3 is linear or branched alkyl or alkenyl of 1-21 carbon atoms, phenyl or tolyl. Accordingly, exemplary dye-levelling agents in¬ clude laurate, myristate, palmitate, coconate, oleate. stearate, isostearate, benzoate and toluate esters of ethoxylated nonylphenol, octylphenol, dodecylphenol, n- decanol, n-dodecanol, n-tetradecanol or n-hexadecanol. The extent of ethoxylation is from 1-25 ethylene oxide units per alkylphenol or alkanol, preferably 6-15 ethylene oxide units. Preferred dye-levelling agents are those wherein: (a) R 3 is of 11-17 carbon atoms, including mixtures thereof; (b) R 3 is n-C 17 H 33 ; (c) R 3 is -C χ7 H 35 ; (d) R 3 is iso-C 1? H 35 ; (e) R_ is phenyl; - (f) R 3 is n -C ι;L H 23 ; (g) a is 9, including each of (a) - (f) ; (h) c is 11-14 , including mixtures thereof and including each of (a) - (f) ; (i) b is about 9.5, including each of (a) - (f) ; (j) d is 6-10, including each of (a) - (f) ; (k) b is 6-15, including each of (a) - (f) ; and (1) a is 9, b is 8-10 and R 3 is n ~ c *n H 23* The compositions are especially suited for treat¬ ment of synthetic fibers such as polyester, polyamide, and polyacryliσ. The polyester may be spun or textured polyester or filament or warp yarn and may be woven, knitted, tufted, needle punched or non-woven. The polyester can be a polyalkylene terephthalate, such as polyethylene terephthalate, or a polyester made from cyclohexane-dimethanol. The polyamide may be of types 6; 6,6 or 6,10. The acrylic may be straight acrylic (acrylonitrile) or modacrylic (modified with vinyl chloride, vinylidene chloride) . The compositions are also adapted for application to blends of the above fibers with each other and with cellulosics OMPI (cotton, rayon, etc.) or wool. The compositions can be applied at any of several stages of fiber processing. The following are exem¬ plary of application to polyester fiber: A. Spin Finish Application: The composition is applied to the yarn from a 10-20% emulsion to give a finish level on the yarn of 0.25 - 10%. The treated yarn can be built into yarn packages which can be used in high speed texturizing machines. Compositions used as spin finishes will pre¬ ferably have the following compositional range: Parts by Weight Cycloaliphatic diester 20-40 High Boiling Aromatic Ester 20-40 Dye Levelling Agent 10-20 Emulsifiers, depersing agents and/or anti-static agents 20-30 . Most preferably, the compositions will contain 25-35 parts by weight of the cycloaliphatic diester and 25-35 parts by weight of high boiling aromatic ester. Spin finish compositions will preferably contain a cycloaliphatic diester in which R is alkyl. of 4-20 car¬ bon atoms, most preferably 6-12 carbon atoms. The high boiling aromatic ester will preferably be of a glycol, most preferably diesters from ethylene, propylene, or butylene glycol and benzoic or toluic acid. The dye-levelling agent is preferably an ethoxy- lated nonylphenol ester, especially of nonylphenol. The emulsifiers, etc. will preferably comprise ethoxylated castor oil, ethoxylated hydrogenated castor oil and phosphated ethoxylated alkylphenol in ratios of 1 : 2 : 2 to 1 : 3 : 3 by weight. OMPI A most preferred spin finish composition will consist essentially of: Parts by Weight Cycloaliphatic bis(2-ethyl- hexyl)ester 25-35 Propylene glycol dibenzoate 25-35 Ethoxylated nonylphenol laurate 10-20 Ethoxylated castor oil 4-6 Ethoxylated hydrogenated castor oil 8-12 Ethoxylated nonylphenol- phosphate, K salt 8-12 The spin finish compositions can be diluted with water to form a stable emulsion or dispersion for appli¬ cation. The spin finish is preferably applied to ~ pϊ6^ ~' duce a pick-up of 0.4 - 0.75% by weight.. A representative polyester treated to 0.5 - 0.6% pick-up with the spin finish composition of this in¬ vention has lower heat history characteristics than yarn treated with a conventional spin finish. Yarns thus treated can therefore be texturized at lower tem¬ peratures than possible heretofore and dyed at lower temperatures than previously used. In addition, the spin finish does not smoke or fume during texturizing at 200-240°C. In the case of spun yarns, the finish enhances the cohesive properties of the yarn and pro¬ vides the desired lubricity during picking, cording, drawing, roving and spinning. It is recommended that, once the spin finishing compositions of this invention have been applied, no conventional lubricants be used, so as to prevent adulteration of the finishes. Maximum benefit is ob¬ tained by exclusive use of the compositions of the in¬ vention through conversion of the treated yarn to piece goods and dyeing. B. Knitting Application: The composition is applied as a knitting lubricant and is left on the yarn during subsequent yarn processing. That is, the lubricant need not be scoured off as are conventional lubricants. The capability of omitting a previously required processing step is an important advantage in utilizing the teachings of this invention. During weaving or knitting, high temperatures are reached due to friction and speeds, but the lubricants in accordance with the invention remain functional and do not gum up or build up on equipment. In the dyeing stage, the lubricant/dyeing assistant does not break down during the dyeing cycle (250-270°F) and/or smoke during drying and heat setting of the fiber. Elimina- tion of hazy blue smoke during drying and heat setting is important because of increasingly stringent stan¬ dards against air pollution. • The lubricant compositions of this invention pre¬ ferably will be of the following composition: Parts by Weight Cycloaliphatic diester 10-30 High boiling aromatic ester 30-60 Dye-levelling agent 10—30 Emulsifiers, etc. 10-30 Most preferably, the composition will contain 15-25 parts by weight of cycloaliphatic diester, 35-45 parts by weight of high boiling aromatic ester and 15-25 parts by weight of dye-levelling agent. The preferred cycloaliphatic diester and dye- levelling agent are as for the spin-finishing composi¬ tion. However, the high boiling aromatic is preferably a dibenzoate or ditoluate of di- or triethylene glycol or di- or tripropylene glycol. The conventional emulsifier and anti-static agents preferably are ethoxylated alkylphenols and the corres- ponding phosphate esters, most preferably ethoxylated nonylphenol. Other materials in the lubricant composition can include an anti-oxidant, such as butylated hydroxy- toluene, in an amount of up to 0.5% by weight; an alkanol-amine, such as triethanolamine, in an amount up to 5.0% by weight, and up to 2.5% by weight of water. A most preferred lubricant composition comprises: Parts by Weight Cycloaliphatic bis(2-ethylhexyl)ester 25-35 Dipropylene glycol dibenzoate 35-45 Ethoxylated nonylphenol lau ate 15-25 Ethoxylated nonylphenol 5-15 Butylated hydroxytoluene 0.05-0.2 Ethoxylated nonylphenol phosphate 5-10 Triethanolamine 1-5 Water ' 1-2 For satisfactory performance, the take up, expressed as minimum percent extractables, when the treated fabric or fiber is loaded into the dyeing machine, should be at least: Minimum % extractable Cycloaliphatic diester 0.075 High boiling aromatic ester 0.075 Dye-levelling agent 0.050 Add-on levels will vary depending on the point in the fiber processing at which the lubricant is applied, but will be from about 0.25 to about 5.0% by weight of the fiber. During knitting, the add-on is preferably 0.5 to 1.5% by weight. Another type of knitting lubricant prepared in accordance with the invention will be of the compo¬ sition: OMPI Parts by Weight Cycloaliphatic diester 5-15 High boiling aromatic ester 30-50 Dye-levelling agent 5-15 Emulsifiers, etc. 10-20 Ethylene oxide-propylene oxide copolymer 10-30 The knitting lubricants may also contain up to 0.25% by weight of an anti-oxidant and up to 5% by weight of an alkanolamine, e.g., dibutylethanolamine. It is preferred that the knitting lubricants contain a cycloaliphatic diester in which R is alkyl of 4-20 carbon atoms, more preferably 6-12 carbon atoms. The preferred high boiling aromatic ester will be a dibenzoate or ditoluate of ethylene or propylene glycol. Propylene glycol dibenzoate is particularly preferred. The dye-levelling agent used in the knitting lubricant composition is preferably an ester of an ethoxylated alkanol, more preferably the decanoate, laurate, myristate or palmitate of ethoxylated decyl, lauryl, myristyl or hexadecyl alcohols. Ethoxylated alkanols and corresponding phosphates are preferred emulsifiers in the knitting lubricant. Ethylene oxide-propylene oxide copolymer of molecular weight 2000 - 5000 is preferred. A most preferred knitting lubricant is: Parts by Weight Cycloaliphatic bis(2-ethylhexylJester 8-12 Propylene glycol dibenzoate 35-45 Ethoxylated lauryl laruate 8-12 Ethoxylated lauryl alcohol 8-12 Butylated hydroxytoluene 0.5-2 Ethylene oxide-propylene oxide copolymer .20-25 Ethoxylated lauryl alcohol phosphate 3-6 Dibutylethanolamine 1-3 OMPI The lubricant is applied by dripping or misting on to the needles to an uptake of 1-2% on the yarn. The thus-applied composition provides fiber-metal and metal- metal lubrication at temperatures of 100-150°F. The composition does not break down or gum up the knitting machine. The foregoing lubricants, if left on the cloth or yarn during the dyeing step, promote uniform dye uptake. In fact, their presence aids dye exhaustion. at 240-270°F. The lubricants do not cause excessive foaming or affect fastness properties of the dyed fabric. Use of these compositions substantially reduces or eliminates carrier odor and smoke inside and outside processing plants. In addition to reducing air pollu¬ tion, use of the lubricant compositions of this inven¬ tion reduces water pollution. Generally, plant sur¬ charges for high BOD/COD or separable oils become unnecessary. C. Application as Coning Oil: For use as a coning oil, intended for application after texturing or during winding of the yarn, the compositions of this invention will also contain a major amount, up to 70% by weight, of ethylene oxide- propylene oxide copolymers of molecular weight 2000-5000. Exemplary of an appropriate material are ϋcon ^ LB and HB (Union Carbide Corp.), the Pluronics ^ (BASF) or Jeffox fluids (Texaco, Inc.). Coning oil compositions in accordance with the invention will include: Parts by Weight Cycloaliphatic diester 5-10 High boiling aromatic ester 5-10 Dye-levelling agent 2-5 Emulsifiers, dispersing agents and/or anti-static agents 10-20 Ethylene oxide-propylene oxide copolymer 60-70 Preferred cycloaliphatic diesters for coning oil compositions include those in which R is alkyl of 4-20 carbon atoms, most preferably 6-12 carbon atoms. The high boiling aromatic ester will preferably be of an alkanol of 8-30 carbon atoms, more pre¬ ferably decyl, lauryl or myristyl benzoate or toluate. The dye-levelling agent will preferably be an ester of ethoxylated alkylphenol, more preferably of nonylphenol. The emulsifiers will preferably be ethoxylated alkanols, the corresponding phosphates and ethoxy¬ lated hydrogenated castor oil. Other ingredients in the coning oil composi¬ tions can include up to about 0.5% by weight of an antioxidant, such as butylated hydroxytoluene; up to about 2.5% by weight of an alkanolamine, such as triethanolamine and up to 2.5% by weight of water. A most preferred coning oil formulation is: Parts by Weight Cycloaliphatic bis(2-ethyl- hexyl)ester 6-8 Lauryl benzoate 6-8 Ethoxylated nonylphenol coconate 2-4 Ethoxylated lauryl alcohol 8-12 Ethoxylated hydrogenated castor oil 2-4 Ethoxylated nonylphenol phosphate 2-4 Ethylene oxide-propylene oxide copolymer 60-70 Butylated hydrσxyltoluene 1.05-0.2 Triethanolamine 0.5-2 Water 0.5-2 Coning oil in accordance with the invention penetrates the fiber rapidly, but does not sling off the fiber or feeder roll during, application. The treated yarn is lubricated sufficiently for the yarn to be rapidly coned, knitted or woven. The composition is stable and does not smoke, yellow or discolor at temperatures up to about 150°F. D. Dyeing: Dyeing assistant compositions in accordance with the invention will consist of: Parts by Weight Cycloaliphatic diester 20-40 High boiling aromatic ester 20-50 Dye-levelling agent 10-25 Emulsifiers, etc. 10-30 The cycloaliphatic diesters utilized for this aspect of " the invention will preferably be those wherein R is alkyl of 4-20 carbon atoms, preferably * . 6-12 carbon atoms. Preferred high boiling aromatic esters for this utility are dibenzoates and ditoluates of mono- and diethylene or propylene glyσols. '* Dye-levelling agents preferred for this aspect of the invention will be esters of the ethoxylated alkylphenols, particularly ethoxylated nonylphenol. It is preferred that dyeing assistant composi¬ tions also contain ethoxylated castor oil and ethoxy¬ lated hydrogenated castor oil, as well as the phosphate (potassium salt) of an ethoxylated cycloaliphatic diester, that is, R is phosphated polyoxyethylene. Preferably, the dyeing assistant compositions will contain 25-35 parts by weight of cycloaliphatic diester, 35-45 parts by weight of high boiling aromatic ester and 10-20 parts by weight"of dye-levelling agent. MPI A most preferred dyeing assistant composition will contain: Parts by Weight Cycloaliphatic bis(2-ethyl- hexyl)ester 25-35 Dipropylene glycol dibenzoate 35-45 POΞ nonylphenol laurate 10-20 POE castor oil 4-6 POE hydrogenated castor oil 8-12 POE cycloaliphatic diester phosphate, K salt 8-12 The composition is applied to the dyebath at a level of 0.25%, based on the weight of the goods. The dye bath is acidic (pH = 5 ± 0.5) and contains dye as the only additional ingredient. This is unlike conventional processing requiring a dyeing assistant of 2-4% and other auxiliary levelling agents. Furthermore, the dyeing cycle is less sensitive to rate of temperature change than in. σon- ventional systems. The dyeing temperature in both systems is usually 265°F in jet dyeing equipment. Dyed yarns obtained using the compositions of the invention compare favorably with conventionally dyed yarn in properties such as light-fastness, crocking, shade depth and levelness. Accordingly, the compositions of this invention, applied to .a synthetic fiber when manuf ctured, or used as a processing aid for texturizing instead of prior art lubricants, both improve the dye affinity of the fiber and generally eliminate the need for further downstream processing and consumption of chemicals associated therewith. Typical processes or treating agents elimina¬ ted include: (1) Lubrication during knitting or weaving (2) Scour and removal of lubricant (3) Dye carrier during dyeing (4) Dye dispersant during dyeing (5) Dye leveller during dyeing (6) Fiber lubricant during dyeing (7) Defoamer during dyeing (8) Afterclean and scour after dyeing (9) Winding lubricant for dyed yarn. A most preferred general purpose textile-treating composition consists essentially of: Percent by Weight Bis (2-ethylhexyl) cyclo¬ aliphatic ester 15-25 Propylene glycol dibenzoate 30-50 Polyoxyethylenenonylphenol laurate 15-20 Polyoxyethylene hydrogenated castor oil 5-15 In the following examples , the temperatures are set forth uncorrected in degrees Celsius. Unless otherwise indicated, all parts and percentages are by weight. Example 1 Preparation of Dialkyl Ester (A is -CH-CH--, R is 2-ethylhexyl) . To three-necked flask fitted with stirrer, ther¬ mometer, nitrogen purge, condenser, side-arm receiver and heating mantle were charged 352 g (1 mole) of Diacid 1550, 273 g (2.1 moles) of 2-ethylhexanol, 1.5 g of p-toluenesulfonic acid and 2 g of decolorizing carbon, Air was purged from the flask with nitrogen and the reaction mixture was stirred and heated to 160-170°C for 4-6 hours. Water formed during the reaction was collected in the side arm receiver. The reaction was OMPI continued until the acid value was below 5 mg KOH/g. The catalyst and carbon were removed by filtration. The ester product and 25 grams of nickel on kiesel- guhr were charged to a stirred, heated pressure vessel. The mixture was heated to 160-170°C and pressurized to 400 psig with hydrogen. A sample was taken after 6-8 hours and the iodine value was determined. The reaction was continued until the iodine value was below 0.5 g of iodine/100 g of sample. The product was cooled to 50°C and the catalyst removed by filtration. Esters are prepared similarly from: (1) Diacid 1550 and decyl alcohol, 1 : 2 molar ratio (2) Diacid 1550 and tridecyl alcohol, 1 : 2 molar ratio (3) Diacid 1550 and Neodol 25, a mixture of C 12 -C 15 linear alcohols, 1 : 2 molar ratio (4) Diacid 1550 and butanol, 1 : 2 molar • ratio. ' Example 2 A. Preparation of Polyoxyethylene Diester (A is -CH-CH-, R is HO(CΞ 2 CH 2 0)_.CΞ 2 CH 2 -) . To a stirred autoclave fitted with heating and cooling coils was charged 352 g (1 mole) of Diacid 1550, Catalyst (1.0 g of potassium hydroxide) was charged to the reactor. The temperature was raised to 110°C and the reactor was vacuum stripped for 30-60 minutes to remove any residual water from previous washing of the reactor or from one or more of the charged reactants or catalyst. The reactor was purged with nitrogen to remove air, evacuated again and purged again with nitrogen. It was stirred and heated to 140°C and 100 g (2.3 moles) of ethylene oxide was added to the reactor. The pressure inside the reactor immediately built up to 30-50 psig. After 30-60 minutes' induction time, an exothermic polymerization reaction (to 150-160°C) began with an accompanying pressure drop to zero (0 psig) as ethylene oxide was consumed. Ethylene oxide was added to the reactor to a total of 660 grams (15 moles) . The temperature was maintained at 150-160 β C by cooling. Addition of ethylene oxide was stopped and the reaction was allowed to continue for an additional 30 minutes. The reactor was cooled to 90-100°C and purged twice with nitrogen. A sample of the product had a hydroxyl value of 110 mg of KOH/g (15 moles of ethylene oxide added to the diacid) . The diester was acidified with acetic acid to neutralize the potassium hydroxide catalyst and 3 g of hydrogen peroxide was added to bleach and lighten the color of the product. The reactor was cooled to 30°C and the product was filtered through filter paper using a porcelain filter. B. Reduction to the Polyoxyethylene- Diester (A is -CH 2 CH 2 -) . The product of Example 2A and 25 g of nickel on kieselguhr were charged to a stirred, heated pressure vessel. The mixture was heated to 160-170°C and pressurized with hydrogen to 400 psig. After 6-8 hours, samples were removed at intervals for deter¬ mination of the iodine value. The reaction was con¬ tinued until the iodine value was less than 0.5 g/100 g of sample. Example 3 Preparation of Phosphated Polyoxyethylene Diester (A is -CH 2 CH 2 - , R is 0 If (HO) - _PO (CH Δ-CH- ΔO) X\ CH- ΔCH- Δ-) . Polyethoxylated (15 moles) diacid, obtained as ' in Example 2B was heated to 50-60°C, stirred and purged thoroughly with nitrogen to remove air. To about 1015 g (1.0 mole) of this material was added 24 g (0.17 mole) of ∑^s * ^~ -*- ι ne(i i a ' i --e exothermic reaction occurred- (exotherm to 85-95°C) . The reaction mixture was maintained at this temperature by cooling and an additional 24 g (0.17 mole) of P 2 ° 5 was added. The reaction was continued for 3 hours after all the P 2°5 was at *** < **- ec ** " τ - αe reactor was cooled to 50°C prior to removal of a sample. The product had an acid value of 32 mg KOΞ/g (indicates the reaction is complete) . The batch was bleached at 85-95°C with 5 g of hydrogen peroxide, cooled to 30°C and filtered. Example 4 Preparation of Propylene Glycol Dibenzoate. To . a 3-necked flask fitted with. stirrer, con-, denser, receiver, thermometer, nitrogen purge and heating mantle were charged 84 g (1.1 mole) of propylene glycol, 244 g (2 moles) of benzoic acid and 0.8 g of p-toluenesulfonic acid. Air was purged from the flask with nitrogen and the contents of the flask were heated to 160-170°C. Water forrzed by the reaction was removed continuously. The reaction was continued until the product had an acid value below 5 mg KOH/g. The sample was cooled and filtered. Other esters are prepared using the following reactants: (1) dipropylene glycol and benzoic acid, 1 : 2 molar ratio (2) PPG 200 and benzoic acid, 1 : 2 molar ratio (3) PPG 500 and benzoic acid, 1 : 2 molar ratio. Ξxample 5 Preparation of Polyoxyethylene Nonylphenyl Laurate, To a three-necked flask fitted out as in Example 4 was charged 750 g (1.1 mole) of polyoxyethylated nonylphenol (9.5 moles of oxyethylene, NP 9.5), 208 g (1 mole) of lauric acid and 2.4 g of p-toluenesulfonic acid. Air was purged from the flask with nitrogen and the mixture was heated to 160-170°C until an. acid value below 10 mg KOH/g was obtained. The product was cooled and filtered. Other polyoxyethylene nonylphenyl esters are made in a similar fashion from: (1) NP 9.5 and coconut fatty acid, 1 : 1 molar ratio (2) NP 9.5 and oleic acid, 1 : 1 molar ratio (3) NP 9.5 and stearic acid, 1 : 1 molar ratio (4) NP 9.5 and benzoic acid, 1 : 1 molar ratio. Example 6 Ethoxylated castor and hydrogenated castor oils were prepared as in Example 2. Ethylene oxide adds to the hydroxyl group of castor oil. Example 7 A textile treating composition was made by com¬ bining materials prepared as above in the following amounts by weight % by weight Bis-2-ethylhexyl diester (Ξxample 1) 20 Propylene glycol dibenzoate 40 Polyethoxyethylene nonylphenol laurate (9.5 moles ethylene oxide) 20 Polyethoxyethylene hydrogenated castor (25 moles ethylene oxide) 10 Polyethoxyethylene castor (80 moles ethylene oxide) 10 OMPI Ξxample 8 The textile-treating composition of Example 7 was applied during the dyeing cycle to a 10 g swatch of T56 textured polyester test fabric by the following tech- nique: The sample swatch was placed in a stainless steel beaker containing 150 ml of water, 0.067 g of disperse yellow 67, 0.091 g of disperse red 91, 0.026 g of dis¬ perse blue 56, 0.1 g acetic acid (56%) and 0.03 g of the textile-treating composition. The beaker was sealed and placed in a launderometer set at 38°C. The tempera¬ ture was raised at 4-5°C per minute to 130°C and held for 30 minutes. The beaker was cooled at 4-5°C per minute to 52°C and removed from the launderometer. The polyester swatch was removed from the beaker. It was uniformly dyed in a medium brown shade. Nearly all of the dye was exhausted from the aqueous solution. The swatch was rinsed with cool water and.dried in.an oven at 121°C. Example 9 Texturized polyester doubleknit (1500 pounds) were loaded into a 6 port Gaston County jet machine. The machine was filled with water and the goods given an overflow wash. The machine was refilled and ramped to 60°C. Fifteen pounds of acetic acid (56%) and 4.5 pounds of the compositions of Example 7 were dropped into the jet from the drug room. After 5 minutes, 18 pounds of Sa aron Yellow 6 GSL (disperse yellow 114) , 15 pounds of Bucron Rubine 2BNS (disperse red) and 13 pounds of Foron Blue SBGL (disperse blue 73) were added to the jet machine from the drug room. The jet was sealed off and ramped to 130°C. The temperature was held for 30 minutes at 130 β C and ramped back to 66°C. The fabric was patched for shade, the shade matched standard. The temperature was dropped to 38°C. The spend dye liquor was dropped and the machine re¬ filled with water. The goods were rinsed thoroughly and removed from the jet. The goods were slit, dried and inspected. Final inspection indicated goods of excellent quality. During the dyeing cycle using the composition of Example 7, the odor level in the dye house was much lower than observed with conventional systems. Little smoking from the ovens was observed during drying and heat setting at the end of the dyeing cycle. Employee comfort was therefore significantly improved. The dyeing assistant undergoes facile degrada¬ tion upon being fed to the plant effluent. The following values were obtained: Conventional Dye Assistant System As Above COD mg/kg 2 ,640.,000 2,210,000 BOD mg/kg <2,000 750,000 Ratio, COD:BOD > ' 1300:1 2.95:1 Because little of the dyeing assistant remains on the fabric after dyeing, use of the product of Example 7 does not affect fastness properties of the dyed goods. The foregoing is typical of production-scale application of the composition. Example 10 The procedure of Ξxample 9 was repeated, except that no composition of Example 7 was used. Upon patching at the end of the dyeing cycle, the shade is slightly off du to incomplete dye exhaustion. The bath temperature was taken back up to 132°C and held an additional 30 minutes. The next patch in¬ dicated the shade matched the standard, whereupon the goods were rinsed, removed, slit and dried. Upon inspection, the goods were found to have dye streaks, rope marks, bad barre coverage and a generally unlevel dyeing from end to end and piece to piece. The goods had to be reworked by being loaded back into a dyeing machine and treated with additional dye and levelling agents. The goods were kept in the machine for 3-4 hours until a level dyeing was achieved, but the fabric had a poor appearance as a result of prolonged processing. This comparative example shows that omission of the composition of the invention produces an unac¬ ceptable dyeing. Example 11 A textile-treating composition is prepared from the following ingredients: % by weight bislauryl diester (Example 1) 20 dipropylene glycol dibenzoate 40 POE (9.5) nonylphenol coconate 20 POE (80) castor oil 10 POE (25) hydrogenated castor oil 10 This composition is comparable in properties with the composition of Example 7. Example 12 A textile-treating composition is prepared as in Example 7, except that 22% by weight of polyoxyethylene diester (Example 2B) and 28% by weight of propylene glycol dibenzoate were used. The composition enhances processing of polyester fabric as described in Example 9. Ξxample 13 A textile-processing composition is prepared as in Ξxample 7, except that 18% by weight of phos¬ phated polyoxyethylene diester (Example 3) and 42% by weight of dipropylene glycol dibenzoate are used. The composition improves the processing of polyester fabric and acts as an anti-static agent. Example 14 (a) A textile-treating composition was pre- pared as in Example 7 from the following: Percent by Weight Cycloaliphatic bis(2-ethyl- hexyl)ester 30.0 Dipropylene glycol dibenzoate 30.0 POE (9.5) nonylphenol laurate 15.0 POE (80) castor oil 5.0 POΞ (25) hydrogenated.castor oil. .10.0 POΞ (15) diester phosphate potassium salt (Ξxample 3) 10.0 (b) The composition thus obtained was applied from a 20% aqueous solution as a spin finish to 150 denier polyester fiber, which was then spun and tex¬ tured. The finish of the yarn (foy) prior to tex- turizing was 0.29%; after texturizing foy was 0.25%. The textured yarn built a satisfactory package. Spin finish, applied as above, did not smoke, drip, build up on heater plates or cause other undesirable running conditions. The texturized yarn was knitted on an Invoit 18 Gauge machine into a double knit fabric. The yarn knitted well, with a minimum heat build up on the knitting machine. No haze, mist or odor was ob¬ served in the knitting plant. The fabric was taken to the dyehouse and loaded into a 6-port Gaston County jet machine. The goods were neither overflow washed nor scoured. Foaming during loading of the fabric was significantly lower than that of fabrics treated with conventional lubricants. The fabric was dyed as in Ξxample 9 to yield a product judged of superior quality. Both dye yield and barre coverage were improved and the fabric had a better overall appearance than untreated fabrics. Ξxample 15 (a) A spin finishing composition was prepared from: Parts by Weight Cycloaliphatic bis (2-ethylhexyl)ester 30 Propylene glycol dibenzoate 30 POE (9) nonylphenol laurate - 15 POΞ (81) castor oil 5 POΞ (25) hydrogenated castor oil • 10 POΞ (10) nonylphenol phosphate, K salt 10 (b) The composition of part (a) was applied, as a 20% emulsion, to polyester yarn (505 denier/34 fila¬ ment) from a single merge so as to achieve 0.5 - 0.6% dry pick-up. The treated yarn and yarn treated with conventional lubricant (Diamond Shamrock FT 504, con- taining a fatty ester lubricant, nonionic ethoxylate emulsifiers and antistat at 0.5 - 0.6% pick-up) were textured at 205-220°C on a sample Scragg X-2 texturing machine. After texturing, the treated yarns were tested for thermal and other properties. The fol- lowing results were obtained: Standard Spin Finish of Spin :Finish Example 15(a) Tube Color Viblet/Green Striped Orange Denier (short denier method) / • Ϋ 164 167 Filament Count I 34 34 Density (Density gradient tube method) , g/cc 1 3883 1.3856 (range of 10 sam¬ (range of 10 sam¬ ples, 0.001) ples, 0.0003) TMA (Thermomechanical Analysis) 165°C 145°C °C recheck, 168°C recheck, 148°C DSC (Differential Scanning Calorimetry) , °C 159°C 152 Q C % Lubricant (Ether Soxhlet Extraction) 0.31 0.41 TMA is a measure of softening or melting tendency of yarn heated under a constant tension. The decrease in TMA and DSC of the test yarn indicates that-the degree of crystallinity is lower than that of yarn treated with a conventional spin finish. Accor¬ dingly, treated fibers could be texturized and would absorb dyes at lower temperatures than customary, resulting in decreased energy expenditure. (c) Photomicrographic studies of yarn cross sections indicated that both yarns maintained their configurations. Accordingly, it is thought that observed changes in heat history were caused by changes in crystallinity induced by the spin finish applied. Dye penetration of both yarn lots was essentially equivalent, but dye absorption of the fibers treated with the compositions of this Ξxample are higher. The photomicrographs (Figs. 1-4') also show that the crystallinity of the test specimens has -been changed. (d) Lubricating properties of the yarns was evaluated on the Scragg X-2 machine under varying conditions. The yarn was textured at 340 meters/min at 205-220°C. The following results were obtained: ffl CN en m OMPI , " The frictional properties, breaking strength, elongation and heated shrinkage were judged equi¬ valent. (e) The effect of texturing temperature on 5 dye uptake of yarn knitted into a sock and dyed was studied from 180-230°C. Dye absorption by the fiber was measured using a Macbeth Color Ξye instrument. The test lot was texturized using the composition of Ξxample 15(a) and contained no other additives. 10 The control lot contained Hipochem TA-3, a commercial dye carrier containing chlorinated solvents, methyl- naphthalene and emulsifiers. The K/S values (Kubelk-Munk/Scattering) were calculated as follows: 2 -,c _ /q _ (1-reflectance) 2 * • ' - 2Xreflectance The K/S value is directly proportional to the amount of dye on the fabric. The following results were obtained: T Teemmppeerature • K/S with K/S with Finish % Color 20 Carrier Of Ξxample 15(a) Increase 180 5.999 6.580 9.7 185 5.907 6.510 10.2 190 5.814 6.556 12.8 195 5.814 6.432 10.6 25 200 5.721 6.426 12.3 205 5.719 6.484 13.4 210 5.715 6.490 13.6 215 5.816 6.542 12.5 220 5.879 6.614 12.5 30 225 5.993 6.734 12.4 230 6.151 6.888 12.0 These results show that the test fabrics had K/S values about 10% higher than a fabric dyed using a conventional carrier7 In additon, dye uptake was 35 relatively uniform over a wide temperature range for texturing. These data further indicate that spin finish application is relatively more uniform than heretofore. (f) Large scale quantities of polyester tex¬ turized following use of the spin finish of Ξxample 15 (a) were knitted into fabric and dyed in Gaston County Jet Machines without addition of lubricant, leveller, dyeing assistant or dye carrier. The treated polyester consistently gave 7-12% higher color yields than usual. Heat history barre seconds dropped 3-30%, depending on the style and shade. Ξxample 16 Lubricant of the following composition was prepared: Parts by Weight Cycloaliphatic bis(2-ethyl- hexyl)ester 20. . 0 Dipropylene glycol dibenzoate 39 . . 3 POΞ (9.5) nonylphenol laurate 20 . . 0 POΞ (10) nonylphenol 10 . . 0 Butylated hydroxytoluene 0 . . 1 POΞ (9.5) nonylphenol phosphate 6 . , 3 Triethanolamine, 98% 2. , 5 Water 1. 3 Ξxample 17 Coning oil, for application at a level of 2-4% after texturizing, was prepared from: Weight Percent Cycloaliphatic bis(2-ethyl- - hexyl)ester 7. 50 Lauryl benzoate 7. 50 POE (9 * 5) nonylphenol coconate 3.75 POΞ (3.5) lauryl alcohol 10 . 00 Weight Percent POΞ (25) Hydrogenated castor oil 2.50 POΞ (10) nonylphenol phosphate 2.50 ϋcon LB-65 64.15 Butylated hydroxytcluene 0.10 Triethanolamine 1.00 Water 1.00 This coning oil provided necessary lubrication to allow the yarn to be rapidly coned, knitted or woven. It did not smoke, yellow or discolor during processing temperatures of up to 65°C. Ξxample 18 Knitting lubricant in accordance with the invention was prepared from: Weight Percent Cycloaliphatic bis(2-ethyl- hexy )ester 10. . 0 - Propylene glycol dibenzoate 41, , 0 Lauryl (POΞ 9) laurate 10. .0 POΞ (9) lauryl alcohol 10. . 0 Butylated hydroxytoluene 0. .1 Ucon LB-65 21. . 9 POΞ (9) lauryl acid phosphate 5. , 0 Dibutylethanolamine 2. , 0 The lubricant was applied to the knitting needles at a level of 1-2% by dripping or misting and was effective as a lubricant at 38-65"C

Claims: Claims 1. In a textile treating composition containing one or more emulsifiers, dispersing agents and/or antistatic agents comprising one or more of ethoxy- lated castor oil, ethoxylated hydrogenated castor oil, ethoxylated alkylphenol, ethoxylated primary or secondary alkanol or a salt of a phosphated ethoxylated primary alkanol or alkylphenol, the improvement wherein the composition contains: (a) a cycloaliphatic diester of the formula wherein R is straight or branched chain alkyl of 4-20 carbon atoms, polyoxyalkylene of the formula H0(CH 2 CH 2 0) CH 2 CH 2 -, HO(C- j HgO)^Hg-, HO(CH 2 CH 2 0) p (C 3 H 6 0) g C 3 H 6 - or HO(C3H-O) p (C^O) q C A or phosphated polyoxyalkylene, wherein n is 2-22 and (b) a high boiling aromatic ester of the formula ArCOO-R,-OOCAr or ArCOOR-, wherein Ar is a monocyclic aryl of up to 10 carbon atoms; R. is alkylene of 2-8 carbon atoms or polyoxyalkylene of the formula -C H 2 (O-C H 2 ) in which r is 2 or 3 and s is up to 15; and R 2 is alkyl or alkenyl of 8-30 carbon atoms; wherein the ratio of cycloaliphatic diester to high boiling aromatic ester is 0.1 : 1 to 2 : 1 and wherein the combination of cycloaliphatic diester and high boiling aromatic ester constitutes 10-90% by weight of the textile-treating composition. OM?I 2. The composition of claim 1, which composi¬ tion is a dyeing assistant containing 10-25% by weight of a dye-levelling agent of the formula R-COOR 4 ., wherein R. is an ethoxylated alkylphenol residue of the formula a is 0-12 and b is 1-24 or an ethoxylated alkanol residue of the formula CH_ (CH 2 ) c -0-(CH 2 CH 2 0) d -CH 2 CH 2 -, c is 7-22 and d is 1-24 and wherein R, is linear or branched alkyl of 1-21 carbon atoms, phenyl or tolyl. 3. The composition of claim 1, which composi¬ tion is a spin finish consisting essentially of 20-40 parts by weight of cycloaliphatic diester, 20-40 parts by weight of high boiling aromatic ester, 10-20 parts by weight of a. dye-levelling agent and 20-30 parts by weight o emulsifiers, dispersing agents and/or anti-static agents. 4. The composition of claim 1, which composi¬ tion is a spin-finish consisting essentially of 25-35 parts by weight of cycloaliphatic ester in which R is alkyl of 4-20 carbon atoms; 25-35 parts by weight of a high boiling aromatic ester selected from ethylene, propylene or butylene dibenzoate or ditoluate, 10-20 parts by weight of an ethoxylated alkylphenol ester and 20-30 parts by weight of ethoxylated castor oil, ethoxylated hydrogenated castor oil and phosphated ethoxylated alkylphenol in ratios of 1 : 2 : 2 to 1 : 3 : 3 by weight. 5. The composition of claim 1, which composi¬ tion is a spin finish consisting essentially of: Parts by Weight Cycloaliphatic bis(2-ethylhexylJester 25-35 Propylene glycol dibenzoate 25-35. Ξthoxylated nonylphenol laurate 10-20 Ξthoxylated castor oil 4-6 Ξthoxylated hydrogenated castor oil 8-12 Ξthoxylated nonylphenolphosphat , K salt 8-12. 6. The composition of claim 1, which composi- ton is a lubricant consisting essentially of 10-30 parts by weight of cycloaliphatic diester, 30-60 parts by weight of high boiling aromatic ester, 10-30 parts by weight of dye-levelling agent and 10-30 parts by weight of emulsifiers, dispersing agents and/or anti-static agents. 7. The composition of claim 1, which composi¬ tion is a lubricant composition consisting essentially of 15-25 parts by weight of cycloaliphatic diester, 35-45 parts by weight of high boiling aromatic ester, 15-25 parts by weight of dye-levelling agent and 10-30 parts by weight of emulsifiers, dispersing agents and/or anti-static agents. 8. The composition of claim 1, which composi¬ tion is a lubricant composition consisting essentially of 15-25 parts by weight of cycloaliphatic diester in which R is alkyl of 4-20 carbon atoms; 35-45 parts by weight of a high boiling aromatic ester selected from a dibenzoate or ditoluate of di- or triethylene glycol or di- or tripropylene glycol; 15-25 parts by weight of an ethoxylated alkylphenol ester and 10-30 parts by weight of emulsifiers, dispersing agents and/or anti-static agents. 9. The composition of claim 1 , which composi¬ tion is a lubricant consisting essentially of: Parts by Weight Cycloaliphatic bis(2-ethyl- hexyl)ester 25-35 Dipropylene glycol dibenzoate 35-45 Ξthoxylated nonylphenol laurate 15-25 Ξthoxylated nonylphenol 5-15 Butylated hydroxytoluene 0.05-0.2 Ξthoxylated nonylphenol phosphate 5-10 Triethanolamine 1-5 Water 1-2_ 10. The composition of claim 1, which composi¬ tion is a knitting lubricant comprising 5-15 parts by weight of cycloaliphatic diester, 30-50 parts by weight of high boiling aromatic ester, 5-15 parts by weight of dye-levelling agent, 10-30 parts by weight of an ethylene-propylene oxide copolymer and 10-20 parts by weight of emulsifiers, dispersing agents and/or anti-static agents. 11. The composition of claim 10, which also contains up to 0.25% by weight of an anti-oxidant and up to 5% by weight of an alkanolamine. 12. The composition of claim 10, wherein the cycloaliphatic diester is one in which R is alkyl of 4-20 carbon atoms, the high boiling aromatic ester is a dibenzoate or ditoluate of ethylene or ^ . propylene glycol and the dye-levelling agent is an ester of an ethoxylated alkanol. 13. The composition of claim 10, consisting essentially of: Parts by Weight Cycloaliphatic bis (2-ethylhexyl)ester 8-12 Propylene glycol dibenzoate 35-45 Ξthoxylated lauryl laurate 8-12 Ξthoxylated lauryl alcohol 8-12 Butylated hydroxytoluene 0.5-2 Ξthylene oxide-propylene oxide copolymer 20-25 Ξthoxylated lauryl alcohol phosphate 3-6 Dibutylethanolamine 1-3. 14. The composition of claim 1, which composi¬ tion is a coning oil comprising essentially 5-10 parts by weight of cycloaliphatic diester, 5-10 parts by weight of high boiling aromatic ester, 2-5 parts by weight of dye-levelling agent, 60-70 parts by weight of an ethylene oxide-propylene oxide copolymer and 10-20 parts by weight of emulstifiers, dispersing agents and/or anti-static agents. 15. The composition of claim 14, wherein the composition also contains up to about 0.5% by weight of an anti-oxidant, up to about 2.5% by weight of an alkanolamine and up to about 2.5% by weight of water. 16. The composition of claim 14, wherein the cycloaliphatic diester is one wherein R is alkyl of 4-20 carbon atoms, the high boiling aromatic ester is a benzoate or toluate of an alkanol of 10-30 carbon atoms, the dye-levelling agent is an ester of an ethoxylated alkylphenol and the emulsifiers, disper¬ sing agents and/or anti-static agents are ethoxylated alkanols, the phosphate of an ethoxylated alkanol and ethoxylated hydrogenate castor oil. OMPI 17. The composition of claim 14 consisting essentially of: Parts by Weight Cycloaliphatic bis(2-ethylhexyl)est .eerr 6- ■ 8 Lauryl benzoate 6- ■ 8 Ξthoxylated nonylphenol coconate 2- •4 Ξthoxylated lauryl alcohol 8- -12 Ξthoxylated hydrogenated castor oil 2- -4 Ξthoxylated nonylphenol phosphate 2- •4 * Ξthylene oxide-propylene oxide copolymer 60- -70 Butylated hydrox toluene 0.05- -0.2 ' Triethanolamine 0.5- -2 Water 0.5- -2. 18. The composition of claim 1, comprising a dyeing assistant composition consisting essentially of 20-40 parts by weight of cycloaliphatic diester, 20-50 parts by weight of high boiling aromatic ester, 10-25 parts by weight of dye-levelling agent and 10-30 parts by weight of emulsifiers, dispersing agents and/or anti-static agents. 19_ The composition of claim 18, wherein the cycloaliphatic diester is one wherein R is alkyl of 4-20 carbon atoms, the high boiling aromatic ester is a dibenzoate or ditoluate of mono- or di- ethylene or propylene glycol, the dye-levelling agent is an ester of an ethoxylated alkylphenol and the emulsifiers, dispersing agents and/or anti-static agents are ethoxylated castor oil, ethoxylated hydrogenated castor oil and potassium salt of a phosphated ethoxylated cycloaliphatic diester. 20. The composition of claim 18, consisting es¬ sentially of 25-35 parts by weight of cycloaliphatic diester, 35-45 parts by wegiht of high boiling aromatic ester, 10-20 parts by weight of dye-levelling 5 agent and 10-30 parts by weight of emulsifiers, dispersing agents and/or anti-static agents. 21. The compositions of claim 18, consisting essentially of: Parts by Weight 10. Cycloaliphatic bis(2-ethyl- hexyl)ester 25-35 Dipropylene glycol dibenzoate 35-45 POΞ nonylphenol laurate 10-20 POE castor oil -6 5 POE hydrogenated castor oil 8-12' POE cycloaliphatic diester phosphate, K salt 8-12. 22. The composition of claim 1, consisting essentially of: 0 Percent by ϊ7eight Cycloaliphatic bis(2-ethyl- hexyl)ester 15-25 Propylene glycol dibenzoate 30-50 Ethoxylated nonylphenol laurate 15-20 5 Ξthoxylated hydrogenated castor oil 5-15 Ξthoxylated castor oil 5-15. 23. A synthetic fiber or fabric coated with a composition of claim 1 to an add-on of 0.25 - 5.0% by weight of the fiber or fabric. 0 24. A synthetic fiber or fabric coated with a composition of claim 1 to an add-on of 0.5 - 1.5% by weight of the fiber or fabric. OMPI 25. A synthetic fiber or fabric coated with a com¬ position of claim 1, wherein the minimum percent extractable is 0.075% by weight of cycloaliphatic diester, 0.075% by weight of high boiling aromatic ester and 0.050% by weight of dye-levelling agent. 26. A synthetic fiber coated with 1-2% by weight of fiber of a composition of claim 10. 27. A synthetic fiber coated with a spin finish of claim 3 to a pick-up of 0.4 - 0.75% by weight. 28. Polyester fiber coated with the composition of claim 3 to a pick-up of 0.4 - 0.75% by weight. 29. Polyethylene terephthalate fiber coated with the composition of claim 3 to a pick-up of 0.4 - 0.75% by weight.- 30. A synthetic fiber or fabric coated with a composition of claim 22 to an add-on of 0.25 - 5.0% by weight of the fiber or fabric. 31. Polyester fiber or fabric coated in accordance with claim 30. 32. Polyethylene terephthalate fiber coated in accordance with claim 30. 33. In the conversion of synthetic texturized spin-finished fibers to piece goods and dyeing of the thus-produced piece goods, the improvement wherein the fiber is coated during spin finishing with the composition of claim 3 to a pick-up of 0.4 - 0.75% by weight as the sole treating agent employed. y 34. The improvement of claim 33, wherein the fiber is polyester. 35. The improvement of claim 33, wherein the fiber is polyamide. 36. In the conversion of synthetic fibers to piece goods by knitting and subsequent dyeing of the knit piece goods, the improvement comprising using as lubricant a composition of claim 5 to a pick-up of 0.5 - 1.5% by weight, which lubricant is the sole treating agent employed. 37. The improvement of claim 36, wherein the fiber is polyamide. 38. The improvement of claim 36, wherein the fiber is polyester. 39. In the conversion of synthetic fibers to piece goods by knitting and subsequent dyeing of the knit piece goods, the improvement comprising using as knitting lubricant a composition of claim 10 to a pick-up of 1-2% by weight and the lubricant is the sole treating agent employed. 40. The improvement of claim 39, wherein the fiber is polyamide. 41. The improvement of claim 39, wherein the fiber is polyester. 42. In the treatment of synthetic fibers by ap¬ plication of a coning oil after texturizing or during winding with subsequent conversion of the yarn to piece goods and dyeing thereof, the improvement wherein the sole fiber treating agents is the coning oil of claim 14. 43. The improvement of claim 42, wherein the fiber is polyamide. 44. The improvement of claim 42, wherein the fiber is polyester. 45. A method of increasing color yields and decreasing heat history barre seconds in the dyeing of piece goods made from a textured spin finished synthetic fiber comprising using as spin finish the composition of claim 3, without -the addition of lubricant, leveller, dyeing assistant or dye carrier. 46. A method for increasing color yields and decreasing heat history barre seconds in the dyeing of piece goods made from a textured spin finished synthetic fiber comprising using as spin finish the composition of claim 5, without the addition of lubricant, leveller, dyeing assistant or dye carrier. 47. A method for increasing color yields and decreasing heat history barre seconds in the dyeing of piece goods made from a textured spin finished polyester fiber comprising using as spin finish the composition of claim 3, without the addition of lubri¬ cant, leveller, dyeing assistant or dye carrier. 48. A method for increasing color yields and decreasing heat history barre seconds in the dyeing of piece goods made from a textured spin finished polyester fiber comprising using as spin finish the composition of claim 5 without the addition of lub- ricant, leveller, dyeing assistant or dye carrier. i B B. 49. A method of making fabric or an article from a synthetic fiber or fabric comprising the steps of: (a) coating the fiber or fabric with 1-2% by weight of a knitting or weaving lubricant comprising 5-15 parts by weight of a cycloaliphatic diester of the formula • COOR wherein R is a straight or branched chain alkyl of 4-20 carbon atoms, polyoxyalkylene of the formula HO(CH 2 CH 2 0) n CH 2 CΞ 2 -, HO(C- j HgO^C-Hg-, HO(CH 2 CH 2 0) (C j HgO) C 3 Hg- Or HOCC j HgO) (C^O) C 2 __ 4 or phosphated polyoxyalkylene, wherein n is 2-22 and the sum of p + • q is n; 30-50 parts by weight of a high boiling aromatic ester of the formula ArCOO-R,-OOCAr or ArCOOR 2 , wherein Ar is a monocyclic aryl of up to 10 carbon atoms; R, is alkylene of 2-8 carbon atoms or polyoxyalkylene of the formula -C _wH —.m _ • (O-CJ * H_<_*r's in which r is 2 or 3 and s is up to 15; and R 2 is alkyl or alkenyl of 8-30 carbon atoms; 5-15 parts by weight of dye-levelling agent of the formula R,COOR. , wherein R_ is an ethoxylated alkylphenol residue of the formula C * aH a 2.a+l Ό O (-CH,CH 2 0-)- b CH 2 CH 2 - a is 0-12 and b is 1-24 or an ethoxylated alkanol residue of the formula CH 3 (CH 2 ) -0-(CH 2 CH-0) d CH 2 CH 2 -, c is 7-22 and d is 1-24, and wherein R 3 is a linear or branched alkyl of 1-21 carbon atoms, phenyl or tolyl and 10-30 parts by weight of emulsifiers, dispersing agents and/or anti-static agents; (b) knitting or weaving the fiber into fabric or a knit article; and (c) dyeing the fabric or knit or woven article. 50. An article or a fabric -made by the method of claim 49. 51. Polyester fabric or a polyester article made by the method of claim 49. 52. A synthetic fiber coated to a pick-up of 0.5 - 0.75% by weight of a spin finish composition comprising: (a) a cycloaliphatic diester of the formula COOR wherein R is straight or branched chain alkyl of 4-20 carbon atoms, polyoxyalkylene of the formula HO(CH-2CH-2O)nCH-2CH-2-, HO(C,3H6 c O)n„C3,H fi 6-, HO(CΞ 2 CH 2 0) (C 3 ΞgO) C 3 Hg- or HO(C j HgO) Q (C^O)_C 2 __ 4 or phosphated polyoxyalkylene, wherein n is 2-22 and the sum of p + q is n; (b) a high boiling aromatic ester of the formula ArCOO-R,-OOCAr or ArCOOR 2 , wherein Ar is " monocyσlic aryl of up to 10 carbon atoms; R, is alkylene of 2-8 carbon atoms or polyoxyalkylene of the formula -C H 2 (O-C H 2 ) in which r is 2 or 3 and s is up to 15; and R 2 is alkyl or alkenyl of 8-30 carbon atoms; and (c) a dye-levelling agent of the formula R_COOR>, wherein R 4 is an ethoxylated alkylphenol residue of the formula C a H 2a+l O (CH 2 CH 2 0*)- b -CH 2 CH 2 -, ^ _> a is 0-12 and b is 1-24 or an ethoxylated alkanol residue of the formula CH_ (CH-) c -0-(CH-CH 2 0) d -CH 2 CH 2 -, c is 7-22 and d is 1-24 and wherein R_ is linear or branched alkyl of 1-21 carbon atoms, phenyl or tolyl; which fiber is textured at 180-230°C following coating with the spin finish composition, knitted or woven into fabric or converted to a knit article and dyed. 53. The fiber of claim 52, wherein the spin finish composition further comprises emulsifiers, dispersing agents and/or anti-static agents. 54. The fiber of claim 52, wherein the spin finish composition consists essentially of 25-35 parts by weight of cycloaliphatic diester in which R is alkyl of 4-20 carbon atoms; 25-35 parts by weight of a high boiling aromatic ester selected from * ethylene, propylene or butylene dibenzoate or di¬ toluate, 10-20 parts by weight of an ethoxylated alkylphenol ester and 20-30 parts by weight of ethoxylated castor oil, ethoxylated hydrogenated castor oil and phosphated ethoxylated alkylphenol in ratios of 1 : 2 : 2 to 1 : 3 : 3 by weight. 55. A polyester fiber coated in accordance with claim 52. 56. A polyethylene terephthalate fiber coated in accordance with claim 52. 57. A method of treating a synthetic fiber comprising the steps of: (a) ' applying to the fiber to a pick-up of 0.4 - 0.75% by weight a spin finish composition comprising (1) a cycloaliphatic diester of the formula wherein R is straight or branched chain alkyl of 4-20 carbon atoms, polyoxyalkylene of the formula HO(CH 2 CH 2 0) n CH 2 CH 2 -, HO(C 3 HgO) n C 3 Hg-, HO(CΞ 2 CH 2 0) p (C 3 HgO) g C 3 Hg- or HO(C 3 HgO) p (C^O) q C 2 H 4 or phosphated polyoxyalkylene, wherein n is 2-22 and the sum of p + q is n; (2) a high boiling aromatic ester of the formula ArCOO-R,-OOCAr or ArCOOR 2 , wherein Ar is a monocyclic aryl of up to 10 carbon. atoms; R. is alkylene of 2-8 carbon atoms or polyoxy¬ alkylene of the formula ~ c r H 2r^°~ C r H 2r* ) s in wil; *** c ** 1 r is 2 or 3 and s is up to 15; and R2 is alkyl or alkenyl of 8-30 carbon atoms; and (3) A dye-levelling agent of the formula R-C00R 4 , wherein R 4 is an ethoxylated alkyl¬ phenol residue of the formula a is 0-12 and b is 1-24 or an ethoxylated alkanol re¬ sidue of the formula CH J,(CH- C-O-(CH- ΔCH- Δ0- d-CH- ΔCH- Δ, c is 7-22 and d is 1-24 and wherein R g is linear or branched alkyl of 1-21 carbon atoms, phenyl or tolyl; (b) texturing the thus-coated synthetic fiber at 180-230°C; (c) knitting or weaving the resulting textured fiber into fabric or knitting the textured fiber into a knit article; and (d) dyeing the fabric or knit article. 58. The method of claim 57, wherein the spin finish composition consists essentially of 25-35 parts by weight of cycloaliphatic diester in which R is alkyl of 4-20 carbon atoms; 25-35 parts by weight of a high boiling aromatic ester selected from ethylene, propylene or butylene dibenzoate or di¬ toluate, 10-20 parts by weight of an ethoxylated alkyl¬ phenol ester and 20-30 parts by weight of ethoxylated castor oil, ethoxylated hydrogenated castor oil and phosphated ethoxylated alkylphenol in ratios of 1 : 2 : 2 to 1 : 3 : 3 by weight. 59. The method of claim 57 wherein the synthetic fiber is polyethylene terephthalate. 60. The method of claim 57 wherein the synthetic fiber is a polyamide. 61. A method for lowering heat history charac¬ teristics and the degree of crystallinity of a synthetic fiber, lowering the temperature at which the fiber can be texturized and lowering the temperature at which the fiber absorbs dye comprising applying to the fiber to a pick-up of 0.4 - 0.75% by weight of a composition - comprising cycloaliphatic diester of the formula wherein R is straight or branched chain alkyl of 4-20 carbon atoms, polyoxyalkylene of the formula HO(CH 2 CH 2 0) n CH 2 CH 2 -, HO(C 3 HgO) n 3 Hg-, HO(CH 2 CH 2 0) p (C 3 Hg) g C 3 Hg- or HO(C 3 H g O) (C 2 H 4 0) q C 2 H 4 or phosphated polyoxyalkylene, wherein n is 2-22 and the sum of p ÷ q is n; and a high boiling aro- matic ester of the formula ArCOO-R,-OOCAr or ArCOOR 2 , wherein Ar is a monocyclic aryl of up to 10 carbon atoms; R^ is alkylene of 2-8 carbon atoms or poly¬ oxyalkylene of the formula -C H- (O-C H, ) in which r is 2 or 3 and s is up to 15; and R 2 is alkyl or alkenyl of 8-30 carbon atoms; OMPI wherein the ratio of cycloaliphatic diester to high boiling aromatic ester is 0.1 : 1 to 2 : 1 and wherein the combination of cycloaliphatic diester and high boiling aromatic ester constitutes 10 - 90% by weight of the composition and texturing the thus- coated fiber at 180-230 β C. 62. The method of claim 61 wherein the composi¬ tion further comprises a dye-levelling agent of the formula R,C00R 4 , wherein R 4 is an ethoxylated alkyl- phenol residue of the formula C 'a_ Λ E2.a+l io)- -0(CH 2 CH 2 C-)- b CH 2 CH 2 -, a is 0-12 and b is 1-24 or an ethoxylated alkanol re¬ sidue of the formula CH 3_ (CH- Δ) c-O-(CH-_.CH-_■O-kα-CH-_CH-_.-, c is 7-22 and d is 1-24 and wherein R, is linear or branched alkyl of 1-21 carbon atoms, phenyl or tolyl. 63. The method of claim 62, wherein the fiber is coated with a minimum extractable of 0.075% by weight of cycloaliphatic diester; 0.075% by weight of high boiling aromatic ester and 0.050% by weight of dye-levelling agent. 64. The method of claim 62, wherein the syn¬ thetic fiber is polyester. 65. Polyester fiber treated by the method of claim 61. 66. A method for making fabric or an article from a synthetic fiber comprising the steps of: (a) coating the fiber after texturizing during winding with a coning oil comprising a cycloaliphatic diester of the formula n-CgH 13 - V- (CH 2 ) 7 COOR COOR wherein R is straight or branched chain alkyl of 4-20 carbon atoms, polyoxyalkylene of the formula HO(CH 2 CH 2 0_) n CH-CH 2 -, HO(C 3 HgO) n C 3 Hg-, H0(CH 2 CH 2 0) o (C 3 Hg0) C 3 Hg- or HO(C 3 HgO) (C^OΪ^C^ or phosphated polyoxyalkylene, wherein n is 2-22 and the sum of p + • q is n; a high boiling aromatic ester of the formula ArCOO-R,-OOCAr or ArC00R 2 , wherein Ar is a monocyclic aryl of up to 10 carbon atoms; R, is alkylene of 2-8 carbon atoms or polyoxyalkylene of the formula -CrH- Δl. (O-C 1.H~ Δ.4...).s in which r is 2 or 3 and s is up to 15; and R 2 is alkyl or alkenyl of 8-30 carbon atoms; a dye levelling agent of the formula R 3 COOR 4 , wherein R 4 is an ethoxylated alkylphenol residue of the formula C ; aH2.a+l δ -0 (CH CH 2 0k b CH 2 CH 2 -, a is 0-12 and b is 1-25 or an ethoxylated alkanol residue of the formula CH 3_(CH__) c-O- (CH_-CH-_Okα-CH-_CH-_-, c is 7-22 and d is 1-24, and wherein R 3 is linear or branched alkyl of 1-21 carbon atoms, phenyl or tolyl; and an ethylene oxide-propylene oxide copolymer in an amount effective to permit rapid coning, knitting or weaving; (b) knitting or weaving the thus-treated fiber into fabric or an article; and (c) dyeing the fabric or article. 67. A polyester article or fabric made by the method of claim 66 . 68. A diester of the formula wherein A is -CH 2 -CH 2 - or -CH=CH-, and R is phosphated polyoxyalkylene of the formula (HO) or a salt thereof, wherein (C χ H 0) n is (C 2 H 4 0) n , (^HgO)^ or (C- ΔH4.O)p(C i,HOO), n is 2-22 and the sum Pf p + q is n. -69. A diester of claim 68, wherein R is phosphated polyoxyalkylene of the formula (HO or a salt thereof 70. A diester of claim 68, wherein A is -CH=CH» 71. A diester of claim 68, wherein A is -CH 2 CH 2 . 72. In the dyeing of synthetic fibers or fabrics in an acidic aqueous dye bath in the presence of a dye and a dyeing assistant, the improvement wherein the dyeing assistant is a composition of claim 18. 73. In the dyeing of synthetic fibers or fabrics in an acidic aqueous dye bath in the presence of a dye and a dyeing assistant, the improvement wherein the dyeing assistant is a composition of claim 19 * 74. In the dyeing of synthetic fibers or fabrics in an acidic aqueous dye bath in the presence of a dye and a dyeing assistant, the improvement wherein the 75. In a dyeing of synthetic fibers or fabrics in an acidic aqueous dye bath in the presence of a dye and a dyeing assistant, the improvement wherein the dyeing assistant is a composition of claim 21. 76. The improvement of claim 72, wherein the dyeing assistant composition is present in an amount of about 0.25% by weight of the fiber or fabric being dyed. 77. The improvement of claim 72, wherein the dye is a disperse dye. 78. The improvement of claim 72, wherein the fiber or fabric is a polyester. 79. In the conversion of synthetic fibers to piece goods by knitting or weaving and subsequent dyeing of the knit or woven piece ' of goods, the improvement comprising using as lubricant a com¬ position of claim 6 to pick up of about 0.25 - 5.0% by weight of fiber. 80. The improvement of claim 79, wherein the pick-up expressed as minimum % of extractables, when the treated goods is entered into the dye bath is: cycloaliphatic diester 0.075% high boiling aromatic ester 0.075% dye-levelling agent 0.050%. 81. The improvement of claim 79, wherein the fiber is polyamide. 82. The improvement of claim 79, wherein the fiber is polyester. O K≤X OMPI

Inventors: WILSON ROBERT B
Applicants: M & T CHEMICALS INC, M & T CHEMICAL INC
Application year: 1981
Main classification: C07C69
IPC codes: D06M13, D06M101, D06P1