Abstract:
The invention discloses a method for treating an animal substrate comprising: agitating the moistened animal substrate with an aqueous treatment formulation and a solid particulate material in a sealed apparatus, wherein the aqueous treatment formulation comprises at least one colourant. There is also disclosed an animal substrate obtained by the method and finished leather goods obtained by the method.
Abstract:
Textile fabrics formed at least partially of polyester fibers are dyed with an aqueous dyebath comprising(a) 0 to 5 g/l of thickener;(b) disperse dyestuffs in an amount sufficient to dye the fibers to the desired depth of color;(c) 2 to 100 g/l of a partially sulfated adduct of ethylene oxide with an alkyl phenyl or C.sub.8 to C.sub.16 fatty alcohols;(d) 0 to 60 g/l of nonionic or anionic surfactants; and(e) 5 to 50 g/l of at least one organic compound selected from the group consisting of aromatic nitrile ethers and ethoxylated chlorophenols.The fabrics may be continuously dyed by padding, immersing, spraying or otherwise applying the dyestuffs, steaming the fabrics in their wet condition, and subsequently washing and drying.
Abstract:
A process for dyeing a voluminous flat form anionic dyeable substrate, for example a carpet, comprises applying locally to said substrate one or more dyes, optical brightening agents and/or reserving agents having low migration properties followed by pre-fixation of the same, subsequently dyeing the treated substrate in a short bath with one or more dyestuffs having better migration properties, rolling up the substrate and rotating the rolled-up substrate under conditions to effect fixation of the dyestuffs.
Abstract:
The present invention relates to a process for dyeing or printing organic substrates in the presence of lactone, the amount of which is sufficient to adjust the pH value of the dyeing or printing medium from a neutral or basic value to a value from 4.0 to 6.5.
Abstract:
The present invention relates to a method of dyeing using a salt mixture as an electrolyte with 0.5 to 5.00 GPL of sodium chloride or sodium sulphate and alkali agents I and II to exhaust and fix a dyestuff to a cellulose material in a reactive dyeing. In the method the cellulose fiber is treated with (i) the salt mixture with sodium chloride or sodium sulphate specifically, putting the pre-treated fiber maintained at a pH between 3 and above and an (MLR) maintained between 1:20 and 1:3 at a temperature between 20° C. and above and exhausted for between 15 minutes and above, (ii) the alkali agent I with a pH between 9.5 and above at a temperature between 30° C. and above and stained for between 20 minutes and above (iii) the alkali agent II with a pH between 10.5 and above at a temperature between 30° C. and above and stained for 40 minutes and above.
Abstract:
The invention relates to dye mixtures comprising at least one dye of formula (1) ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy and R.sub.2 is hydrogen or C.sub.1 -C.sub.4 alkyl, together with at least one dye of formula (2) ##STR2## wherein R.sub.3 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, R.sub.4 is hydrogen or C.sub.1 -C.sub.4 alkyl and R.sub.5 is C.sub.2 -C.sub.6 alkyl uninterrupted or interrupted by oxygen, with the proviso that R.sub.1 is not methyl when R.sub.2, R.sub.3 and R.sub.4 are hydrogen and R.sub.5 is ethyl.The dye mixtures are suitable for dyeing or printing natural or synthetic polyamide fibre materials, especially in combination with other dyes and especially from short liquors. The dye mixture is distinguished by generally good properties, especially good uptake and good solubility.
Abstract:
A process for enhancing the thermal and/or photochemical stability of dyeings on dimensionally stabilised polyamide fibres, which comprises treating the polyamide fibre material, before the fixation step for producing defined, resilient forms and dimensions, in aqueous medium with a compound of formula I(A-Y-).sub.n Z(-W).sub.m (1)wherein A, W, Y, Z, n and m are as defined in claim 1.
Abstract:
A process for applying a reactive dye to a cellulosic substrate comprising:(a) adding one or more dyeing assistants selected from the condensation product of sulphonated diphenyl ethers, condensation product of sulphonated ditolyl ethers, condensation products of polydiphenylsulphones with formaldehyde and condensation products of polyditolyl sulphones with formaldehyde (and salts thereof) into an aqueous liquor, optionally together with a salt (hereinafter defined as Process Step a);(b) introducing the substrate into the dyebath and adding one or more reactive dyes, (hereinafter defined as Process Step b) ; and(c) fixing the dyestuff onto the substrate (hereinafter defined as Process Step c).
Abstract:
The invention describes a process for dyeing or printing natural or synthetic polyamide fibre material by a rapid fixation method, which comprises the use of dyes or mixtures of dyes of the formulae as defined in the description in a continuous dyeing method or printing method, and fixing the dyes or prints by steaming for less than 3 minutes such that at least 95% fixation of the dyes is achieved. The process is particularly suitable for combination dyeing and polyamide carpet printing, and produces level dyeings and prints having excellent fastness properties.
Abstract:
An improved process for dyeing of fibre material, especially textile fibres, by applying to the fibre material at a temperature below the absorption temperature of the dyestuffs and with a goods-to-liquor ratio of 1:1.5 to 1:4, a concentrated aqueous dye liquor, said concentrated aqueous dye liquor containing at least one dyestuff which, in the case of the substrate to be dyed, has affinity to the fibres and which is either soluble or dispersible in water, and 0.2 to 10 g/l, preferably 2 to 5 g/l, of a surface-active agent, and finishing of the dyeing by means of a heat treatment, e.g. introduction of saturated steam, superheated steam or hot air, preferably by heating from without, at temperatures of 95.degree. to 140.degree. C.