摘要:
A mixed fabric of hydroxy group-containing fibers and cyano and/or carboxy group-containing fibers, the hydroxy group-containing fibers having been dyed with a reactive dye, is aftertreated with a product of reacting a mono- or polyfunctional amine having one or more primary, secondary and/or tertiary amino groups with cyanamide, dicyandiamide guanidine or bis-guanidine, said product containing at least one reactive hydrogen atom linked to a nitrogen atom, and is then dyed with a basic dye.
摘要:
A substrate to which a dyestuff or optical brightener has been applied is aftertreated with a cationic or protonatable polymeric Product P selected from:(A) a polymeric reaction product, Product A, of a monofunctional or polyfunctional amine having one or more primary and/or secondary and/or tertiary amino groups with cyanamide, dicyanamide, guanidine or bisguanidine in which up to 50 mole percent of the cyanamide, dicyanamide, guanidine or bisguanidine may be replaced by a dicarboxylic acid or a mono- or di-ester thereof, with the splitting off ammonia, optionally in the presence of a catalyst; Product A containing at least one free hydrogen atom linked to a nitrogen atom; or(B) the polymeric reaction product, Product B, of Product A with(a) epichlorohydrin or a precursor thereof; or(b) an N-methylol derivative of a urea, melamine, guanamine, triazinone, urone, carbamate or acid amine optionally in the presence of a catalyst for crosslinking N-methylol compounds; or(c) a water-soluble homo- or co-polymer, Product C, of monoallylamines, diallylamines and/or triallylamines;Product P being applied in the presence of an assistant comprising an anionic Component I and a non-ionic component Component II;Component I being selected from C.sub.11-18 alkane sulphonic acids, arylC.sub.1-22 alkylbenzene sulphonic acids, C.sub.8-22 fatty amide amine sulphonic acids; amidobenzene benzenesulphonic acids, Turkey red oil, C.sub.1-22 alkyl-aryl disulphonic acids; C.sub.1-22 alkyl arylaryl sulphonic acids and sulphonated or sulphated products of phenols, phenolC.sub.1-6 alkyl ethers; naphthol, naphthalene, benzylnaphthalenes, phenylether sulphones, tolylether sulphone, novolak products and dinaphthylmethanes; and sulphonated aromatic formaldehyde condensation products; andComponent II being the condensation product of C.sub.2-4 alkyleneoxide with a compound selected from saturated or unsaturated C.sub.8-22 fatty alcohol, a C.sub.3-22 secondary alcohol, C.sub.1-22 alkylphenol and a carboxylic acid. a
摘要:
A process for dyeing without shrinkage with a disperse dyestuff or an optical brightening agent a fibrous substrate whose fibres comprise a mixture of polyvinyl chloride and acetalized polyvinyl alcohol, in which the substrate is dyed at a temperature from 60.degree. to 90.degree. C. in the presence of a levelling carrier, this levelling carrier being removable when the dried substrate is subsequently submitted to a dry heat treatment for a period up to 120 seconds and at a temperature from 95.degree. to 135.degree. C.