Patent GB-1113795-A (GB)
Title: Process for the treatment of textile materials
Inventor: KIRSCHNEK HELMUT
IPC: D06M15/423
Filed: 1965-05-18
Abstract: A composition suitable for use in the treatment of textiles comprises an acidic aqueous liquor which contains (a) a cationic surface-active compound or cationic polymeric compound which contains in addition to a urea grouping <FORM:1113795/C3/1> at least one further such urea grouping or at least one amino group which possesses at least one hydrogen atom bound to the nitrogen atom, (b) an aliphatic aldehyde containing 1-4 carbon atoms or a compound yielding an aliphatic aldehyde containing 1-4 carbon atoms and (c) an anionic surface-active compound or anionic polymeric compound, if desired, an alkylol compound formed from the compound (a) and an aliphatic aldehyde containing 1-4 carbon atoms, or an ether of an aliphatic alcohol containing 1-4 carbon atoms and said alkylol compound, being used in place of or in addition to either or both the components (a) and (b). The cationic surface-active compounds may have the formula R-N(CH2-CH2-NH-CO-NH2)2 in which R is a long-chain alkyl radical, e.g. CH3(CH2)16CH2-, or an alkyl-polyoxyalkylene radical, e.g. <FORM:1113795/C3/2> or their quaternization products, the formula <FORM:1113795/C3/3> in which R is a long-chain alkyl radical, e.g. CH3-(CH2)15-CH2-, or the formula <FORM:1113795/C3/4> in which X is the radical of a compound which contains at least two hydrogen atoms capable of reacting with alkylene oxides, e.g. glycerol, trimethylol propane, pentaerythritol and sorbitol, R1 is hydrogen or an alkyl radical, R2 is an aliphatic, cycloaliphatic, or aromatic radical, R3 is hydrogen or an alkyl, alkoxy, alkoxyalkyl or aryl radical, Z is an aliphatic, cycloaliphatic or aromatic radical containing at least 10 carbon atoms, m is an integer of 2-6, n is an integer of 1-4, p is an integer of 1-100, q is 0 or an integer of 1-4 and r is an integer of 1-100 or their quaternization products. Suitable cationic polymeric compounds are those having the formula <FORM:1113795/C3/5> in which x is an integer of 3-100 of their quaternization products or the formula <FORM:1113795/C3/6> in which x is an integer of 3-100 or the quaternization products.  Suitable aldehydes and compounds yielding aldehydes are formaldehyde, polyoxymethylene dihydrate, acetaldehyde, glyoxal, hexamethylene tetramine, dimethylol urea, dimethylol N,N1-ethylene urea and methylol compounds of melamine, formamide or acetamide.  Suitable anionic surface-active compounds are alkali metal or ammonium salts of alkyl aryl sulphonic acids, alkyl sulphonic phonic acids, higher fatty acids, dioctyl sulphosuccinic acid ester, monofatty alcohol sulphuric acid or phosphoric acid esters, fatty acid sarcosides or taurides, alkyl polyoxyalkylene- or alkyl aryl-polyoxyalkylene carboxylic acids and sulphonic acids and suitable anionic polymeric compounds are alkali metal or ammonium salts of glycollic acid etherified with cellulose, of polyvinyl sulphonic acid and polyacrylic acid having molecular weights of 1000-10,000. The solution may be adjusted to the desired pH by the addition of formic or oxalic acid and may also contain a methyl polysiloxane defoaming agent.ALSO:Textile materials, e.g. fibres, threads, yarns and woven and knitted fabrics made from wool, cotton, viscose rayon, cellulose acetate, synthetic polyamides, polyesters, polyacrylonitrile or polypropylene, are crease proofed, softened and rendered antistatic or hydrophobic by treating them by the exhaustion process, while heating with an acidic aqueous liquor which contains (a) a cationic surfaceactive compound or cationic polymeric compound which contains in addition to a urea grouping <FORM:1113795/D1-D2/1> at least one further such urea group or at least one amino group which possesses at least one hydrogen atom bound to the nitrogen atom, (b) an aliphatic aldehyde containing 1-4 carbon atoms or a compound yielding an aliphatic aldehyde containing 1-4 carbon atoms and (c) an anionic surface active compound or anionic polymeric compound, if desired, an alkylol compound formed from the compound (a) and an aliphatic aldehyde containing 1-4 carbon atoms, or an ether, of an aliphatic alcohol containing 1-4 carbon atoms and said alkylol compound, being used in place of and in addition to either or both the components (a) and (b), squeezing or centrifuging them and drying them, if desired, after a rinsing step before drying.  The cationic surface active compounds may have the formula R-N(CH2-CH2-NH-CO-NH2)2 in which R is a long chain alkyl radical, e.g. CH3(CH2)16 CH2-, or an alkyl-polyoxy-alkylene radical, e.g. CH3(CH2)14CH2-O-(CH2 CH2O)10-CH2-CH2-CH2- or their quaternisation products, the formula R-CONH-CH2CH2NH-CH2CH2NH-CO-NH2 in which R is a long chain alkyl radical, e.g. CH3-(CH2)15-CH2-, or the formula <FORM:1113795/D1-D2/2> in which X is the radical of a compound which contains at least two hydrogen atoms capable of reacting with alkylene oxides, e.g. glycerol, trimethylol propane, pentaerythritol and sorbitol, R1 is hydrogen or an alkyl radical, R2 is an aliphatic, cycloaliphatic, or aromatic radical, R3 is hydrogen or an alkyl, alkoxy, alkoxyalkyl or aryl radical, Z is an aliphatic, cycloaliphatic or aromatic radical containing at least 10 carbon atoms, m is an integer of 2-6, n is an integer of 1-4, p is an integer of 1-100, q is 0 or an integer of 1-4 and r is an integer of 1-100 or their quaternisation products.  Suitable cationic polymeric compounds are those having the formula <FORM:1113795/D1-D2/3> in which x is an integer of 3-100 of their quaternisation products or the formula <FORM:1113795/D1-D2/4> in which x is an integer of 3-100 or the quaternisation products. Suitable aldehydes and compounds yielding aldehydes are formaldehyde, polyoxymethylene dihydrate, acetaldehyde, glyoxal, hexamethylene tetramine, dimethylol urea, dimethylol N,N'-ethylene urea and methylol compounds of melamine, formamide or acetamide. Suitable anionic surface active compounds are alkali metal or ammonium salts of alkyl aryl sulphonic acids, alkyl sulphonic acids, higher fatty acids, dioctly sulphosuccinic acid ester, monofatty alcohol sulphuric acid or phosphoric acid esters, fatty acid sarcosides or taurides, alkyl polyoxyalkylene- or alkyl arylpolyoxyalkylene carboxylic acids and sulphonic acids and suitable anionic polymeric compounds are alkali metal or ammonium salts of glycollic acid etherified with cellulose, of polyvinyl sulphonic acid and polyacrylic acid having molecular weights of 1000-10,000.  The materials treated may be moved for 30-40 minutes in an aqueous bath having a liquor-to-goods ratio of 20:1 to 50:1 having an pH adjusted to 2-4 by the addition of formic or oxalic acid and the temperature raised to about 60 DEG C during this period and as the cloudy liquor becomes clear the temperature may be raised to 65 DEG -70 DEG C and maintained at this level for 15-30 minutes while adjusting the pH value to below 3.  The aldehydes may be added to the liquor during the treatment and the liquor may also contain a methyl polysiloxane defoaming agent.