| 摘要 |
<p>A textile treating composition comprises an aqueous liquor containing: (a) a reaction product of an aminoplast-forming substance with formaldehyde, which reaction product contains in the molecule at least two nitrogen atoms and, attached to nitrogen, at least two methylol groups or etherified methylol groups, and (b) a copolymer of from 1 to 25% of N-methylol acrylamide or N-methylol-methacrylamide and 99 to 75% of a C1-C5 monohydric saturated aliphatic alcohol ester of acrylic or methacrylic acid, the composition containing from 3 to 15% by weight of the reaction product (a) and 1 to 20% by weight of the copolymer (b). Aminoplast-forming substances specified are urea, diphenylurea, methyl urea, ethylene urea, thiourea, dicyandiamide, guanidine, glyoxalmonoureine, glyoxaldiureine, triazinones, melamine, methyl and phenyl melamine, urethanes, polyurethanes, lactams, amides, diamides and polyamides. Copolymers (b) specified include those derived from more than one unsaturated amide and/or ester and also a copolymer containing acrylic acid. Also present in the compositions may be emulsifiers, dyestuffs and acid-reacting compounds for the hardening of the methylol compounds. The compositions are applied to cellulose-containing textiles, dried and heated to a temperature between 100 DEG and 200 DEG C.ALSO:Textile fabrics which contain at least 25% by weight of cellulose fibres are creaseproofed by treatment with an aqueous liquor which contains: (a) a reaction product of an aminoplast-forming substance with formaldehyde which contains in the molecule at least two nitrogen atoms and, connected to nitrogen, at least two methylol or etherified methylol groups, and (b) a copolymer of from 1% to 25% of N-methylol-acrylamide or N-methylol-methacrylamide and 99% to 75% of a C1-C5 monohydric saturated aliphatic alcohol ester of acrylic or methacrylic acid, the treatment being followed by removal of excess liquor, drying and then heating at from 100 DEG C. to 200 DEG C. to effect polycondensation of the aminoplast. Cellulosic fabrics specified are those made of cotton, regenerated cellulose fibres, cotton and linen mixtures and mixtures of cellulose fibres with wool, cellulose 2.5-acetate fibres, cellulose triacetate fibres, alginate fibres and fibres made from polyamides, polyesters, polyolefines and polyvinyl chloride. Aminoplastforming substances specified are urea and substituted ureas, melamine and substituted melamines, dicyandiamide, guanidine, glyoxalureines, triazinones, urethanes, polyurethanes, lactams, amides, diamides and polyamides. The compositions may also contain dyestuffs, e.g. copper phthalocyanine, emulsifiers and catalysts for the hardening of the aminoplasts.</p> |
