Patent GB-541326-A (GB)
Abstract: 541,326. Dyeing textiles &c. ; synthetic resin compositions. CALCO CHEMICAL CO., Inc. Aug. 8, 1939, No. 22869. Convention date, Sept, 8, 1938. [Classes 2 (iii) and 15 (ii)] Fibres, fabrics, and other fibrous or film-like materials are coloured by applying thereto over the whole surface or locally a coloured aqueous solution or dispersion of a resin which is an ester of polyglycols and unsaturated aliphatic carboxylic acids, is oxygen-reactive and capable of solution in water without addition of an alkali, ammonia or organic base. The colour may be a water-soluble dyestuff or an organic or inorganic pigment, e.g. a phthalocyanine pigment, a phosphotungstic or phosphomolybdic lake of a basic dyestuff or ultramarine. Specified initial condensation products are the watersoluble polyglycol maleates and itaconates. Reference is made to the colouring of fabrics of cotton, rayon, pigmented rayon, cellulose acetate, saponified cellulose acetate, silk, wool and mixtures thereof, automobile upholstery cloth having a rubber base, films, paper, glass threads or ribbons and spun glass fabrics. In examples, (1) cotton or rayon is printed with a well ground mixture of hexaethylene glycol maleate and an aqueous copper phthalocyanine pulp and the print is heated for 1 hour at 120‹C. to impart a good resistance to washing : (2) cotton is printed with a well ground dispersion of 6.6<SP>1</SP>-dichloro-4:4<SP>1</SP>-dimethyl-2:2<SP>1</SP>-bis-thionaphthenindigo (e.g. in the form of a water-dispersible powder as described in Specification 474,827), in an aqueous solution of a polyethylene glycol itaconate and the print is heated for 10 minutes at 150‹C. to inpart fastness to washing and to wet and dry crocking ; (3) cotton fabric is dyed by passing it through a dispersion of copper phthalocyanine made by diluting the printing preparation in (1), squeezing and heating for 10 minutes at 150‹C; (4) cotton is printed with an aqueous preparation containing a polyethylene glycol maleate and the sodium salt of the dyestuff, 4 : 4<SP>1</SP> - diaminodiphenylurea - 3 : 3<SP>1</SP>- disulphonic acid <SP>#</SP># (acid) 2:8:6-aminonaphtholsulphonic acid (2 mols.), or dyed with a dilution of such preparation and heated for 5 minutes at 150‹C.; (5) cotton fabric is printed with a well ground dispersion of red oxide of iron in an aqueous solution of a polyethylene glycol maleate and heated for 5 minutes at 150‹C.; (6) cotton is printed with a well ground dispersion of the dyestuff, 3-chloraniline # the 2<SP>1</SP>-toluidide of 2 3-hydroxynaphthoic acid. in an aqueous solution of a polyethylene glycol maleate containing a cobalt acetate drier and heated for 5 minutes at 150‹C.; (7) cotton viscose rayon is printed with a well ground dispersion of carbon black in an aqueous solution of a polyethylene glycol maleate and heated for 5 minutes at 150‹C.; (8), cotton or silk is printed with a well ground dispersion of the phosphotungstic lake of trimethyl-diamino-fuchson-dimethylimonium chloride in an aqueous solution of a polyethylene glycol maleate containing glycol boriborate and heated for 10 minutes at 150‹C.; (9) viscose rayon pigmented with titanium dioxide or wool or cellulose acetate is printed with a well ground dispersion of red oxide of iron in an aqueous emulsion containing a polyethylene glycol maleate, oleic acid, triethanolamine, lauryl sulphate and a liquid aliphatic hydrocarbon and heated for 5 minutes at 150‹C.; (10) cotton or viscose rayon pigmented with titanium dioxide is printed with a well ground dispersion of 6 : 6<SP>1</SP>-dichloro-4 : 4<SP>1</SP>- dimethylbisthionaphthenindigo in an aqueous solution of a hexaethylene glycol maleate and heated for 2 hours at 120‹C. Reference has been directed by the Comptroller to Specifications 344,458, [Group III], and 359,897.