摘要:
A textile dyeing process is described for dyeing a textile material, product or article consisting of animal fibers, comprising the steps of dipping said textile material, product or article into a dyeing bath comprising at least one detergent substance, a wetting substance, a leveling substance and an acidity regulator; adding to the dyeing bath a coloring substance approved for food use; subjecting the dyed textile material, product or article to washes; and finally subjecting the dyed textile material, product or article to a color fixing treatment.
摘要:
The present invention relates to novel dyeing assistant preparations comprising, as component (a), at least one amine oxide of the formula ##STR1## in which R is an aliphatic radical having 8 to 24 carbon atoms andR.sub.1 is an aliphatic radical which is unsubstituted or substituted by hydroxyl and has 1 to 24 carbon atoms, preferably 1 to 6 carbon atoms,as component (b), at least one compound of the formulaR.sub.2 --U--(R.sub.3 --O).sub.m --W (2),in whichR.sub.2 is an aliphatic radical having 8 to 24 carbon atoms,R.sub.3 is alkylene having 2 to 4 carbon atoms,U is --O-- or ##STR2## in which Z is a direct bond, (R.sub.3 --O)).sub.r or C.sub.1 -C.sub.6 alkylene andW.sub.1 is hydrogen or C.sub.1 -C.sub.6 alkyl which is unsubstituted or substituted by hydroxyl, carboxyl, isocyanato, phenyl, benzyloxymethylene or phenethyloxymethylene, m and r independently of one another are a number from 2 to 25,(R.sub.3 --O).sub.m is m identical or different radicals (R.sub.3 --O) and(R.sub.3 --O).sub.r is r identical or different radicals (R.sub.3 --O), andW is hydrogen or C.sub.1 -C.sub.6 alkyl which is unsubstituted or substituted by hydroxyl, carboxyl, isocyanato, phenyl, benzyloxymethylene or phenethyloxymethylene, and, as component (c), an organic solvent, and to their use as dyeing assistants for dyeing wool.
摘要:
A process of dyeing natural or synthetic polyamide fibres in an aqueous exhaustion dyebath comprising an anionic dyestuff, comprising the steps of1. immersing the fibres to be dyed in the aqueous dyebath which has a temperature of from 20.degree.-50.degree. C. and a pH of 7-11 (7-8.5 when the polyamide is wool); and 2. raising the temperature to 110.degree. C. maximum and maintaining it there until exhaustion is substantially complete; there being added to the dyebath, either prior to the commencement of temperature raising or after an alkaline migration period at the boil, an ester of a C.sub.2 -C.sub.3 hydroxycarboxylic acid with a C.sub.2 -C.sub.6 glycol and up to 30% by weight of the ester of a tertiary amine which is essentially non-volatile under the process conditions.
摘要:
A process for dyeing or printing polyamide material by the trichromatic technique using a dye mixture which contains least two yellow- or orange-dyeing dyes of formula (1) ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen, and X is hydrogen or C.sub.1 -C.sub.4 alkyl; together with at least one red-dyeing dye of formulae (2) and (3) ##STR2## wherein R.sub.2 is C.sub.1 -C.sub.6 alkyl, phenyl or cyclohexyl and R.sub.3 is C.sub.1 -C.sub.6 alkyl, or wherein R.sub.2 and R.sub.3, together with the linking nitrogen atom, form an azepinyl ring, and R.sub.4 is hydrogen, C.sub.2 -C.sub.4 alkanoylamino or halogen; and together with at least one of the blue-dyeing dyes of formulae (4) and (5) ##STR3## wherein R.sub.5 is hydrogen or C.sub.1 -C.sub.4 alkyl, R.sub.6 is C.sub.1 -C.sub.4 alkyl or amino, R.sub.7 is hydrogen or methyl, and R.sub.8 is a C.sub.2-4 hydroxyalkylsulfamoyl radical, is disclosed.
摘要:
A low-temperature dyeing additive for protein fiber products contains one or more kinds of solvents which are freely miscible with water and having a donor number within the range of 24 to 50 and an acceptor number within the range of 10 to 24 in the presence or absence of a surfactant, in an amount of 0.025 to 40 g per liter of water, has a pH of 3.5 to 9.5. If necessary, it contains tributoxyethyl phosphate in an amount of 0.025 to 4.0 g per liter of water, and/or contains one or more kinds of anions having an enthalpy of hydration (-.DELTA.H.sub.KJ.multidot.mol.sup.-1) of 200 to 290 in an amount of 0.05 to 40 g per liter of water. This low-temperature dyeing additive for protein fiber products serves to relax the higher-order structures of the protein fibers before dyeing or during dyeing, to thereby swell the fibers, thus rendering the fibers readily dyeable without detriment to the properties thereof.
摘要:
Trichromatic dyeings with acid dyes which exhaust from strongly acidic liquors have weaknesses with respect to wet fastness, which are due to insufficiently fast components (blue, red). It has been found, according to the invention, that by replacing the insufficiently fast acid dyes by reactive dyes of the vinylsulfonyl type and retaining the method of dyeing under strongly acidic conditions the wet fastness level of the exhaust dyeings can be improved while the levelness obtained remains as good.
摘要:
Basic dye compositions suitable for dyeing acid modified polyester and polyacrylonitrile fibrous articles comprise one or more finely dispersed, difficultly soluble dye complex salts composed of one or more water-soluble basic dyes and one or more dispersants capable of being ionically bonded to said basic dye. Appropriate anionic dispersants include a naphthalenesulfonic acid-formaldehyde condensate, a methylnaphthalenesulfonic acid-formaldehyde condensate, lignin sulfonic acid, and an alkyl sulfate.
摘要:
A METHOD OF TRANSFERRING COLOURED DYES FROM A PRINTED PAPER TRANSFER ONTO A TEXTILE FABRIC OR MATERIAL PARTICULARLY WHEN IT IS COMPRISED OF ANIMAL FIBERS. THE FABRIC IS PADDED WITH A CHEMICAL MIXTURE HAVING AN AQUEOUS PHASE AND A PRINTING PASTE THICKER. A PRESS APPLIES HEAT AND PRESSURE TO THE FABRIC WHICH IS IN CONTACT WITH THE PRINTED PAPER TRANSFER, FOR A PERIOD NOT EXCEEDING TEN MINUTES. THE PRINTED FABRIC IS THEN REMOVED FROM THE PRESS, WASHED AND DRIED.