摘要:
Dyestuff preparations consisting of one or more water-soluble dyestuffs, one or more water-soluble carboxylic acid amides with melting points between 40.degree. and 200.degree. C optionally further customary auxiliaries are easily wettable with water and easily and rapidly soluble even in cold water.
摘要:
Dyestuff formulations which contain anionic, water-soluble dyestuffs or developable dyestuffs and salts of diaryl ether-sulphonic acids are suitable for the preparation of padding liquors, dyebaths and printing pastes.
摘要:
Dyestuff preparations which are capable of flow and contain (a) at least one dyestuff which is sparingly soluble or insoluble in water, (b) at least one polyester of phthalic acid and a polyalcohol and optionally a monohydric alcohol with 1-18 C atoms and (c) optionally further auxiliaries, and their use for dyeing plastics, in particular polyurethane plastics.
摘要:
Dispersions of dyestuffs which contain at least one free amino or hydroxyl group capable of reacting with isocyanates under the conditions of polyaddition and liquids in which the dyes are soluble to an extent less than 2 % are suitable for the production of colored polyurethane foams. The dye dispersions can be added before or during the polyaddition reaction.
摘要:
Process for the preparation of water-soluble dyestuffs with a low salt content, characterized in that the water-soluble dyestuffs are salted out from their aqueous solutions and/or dispersions by adding salts which are volatile at temperatures of about 40.degree. C. to about 250.degree. C. under a pressure of about 10 mm Hg to about 760 mm Hg, the dyestuffs are isolated and the volatile salts are volatilized during the drying process.
摘要:
Process for the manufacture of pigment preparations by comminution in the presence of surface-active agents which can be saponified under acid or alkaline conditions and which contain at least one group which confers solubility in a radical which is to be split off during the saponification.
摘要:
The invention relates to the preparation of pulverulent formulations of transfer printing dyestuffs.The process is characterized in that the aqueous dispersions of these dyestuffs are mixed with compounds of the formulaR--ZwhereinR denotes a hydrophobic radical with at least 5 C atoms andZ denotes the groups --COOH, --NH.sub.2, --O(C.sub.2 H.sub.4 O).sub.n H, --NX.sub.1 X.sub.2 or --NH(CH.sub.2).sub.m NX.sub.1 X.sub.2,in whichn is 0, 1 or 2,m is 2-6 andX.sub.1 /X.sub.2 is H or C.sub.1 -C.sub.4 -alkyl,with the proviso that R represents a non-cyclic aliphatic radical when Z represents COOH,and the aqueous mixtures are converted into dry pulverulent form in a manner which is in itself known.The preparation can easily be dispersed in organic media, for example in organic solvents such as those customary in the preparation of printing pastes, and are outstandingly suitable for the preparation of printing inks for printing temporary supports for heat transfer printing.
摘要:
Anionic dyestuffs which contain, as the cation an ammonium ion of the formula ##STR1## wherein R.sub.1 and R.sub.2 independently of one another denote hydrogen, C.sub.1 -C.sub.6 -alkyl which is optionally substituted by hydroxyl, cyclopentyl, cyclohexyl or phenyl, naphthyl or benzyl which are optionally substituted by halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, or one of the radicals --(CH.sub.2 --X--O).sub.n --H, [-alkylene-N (R.sub.3 --].sub.P --R.sub.3 or -arylene-N (R.sub.3)--(CH.sub.2 --X--O).sub.n --H or denotes, together with the nitrogen atom, a 5-membered to 7-membered heterocyclic radical,R.sub.3 denotes hydrogen, C.sub.1 -C.sub.6 -alkyl which is optionally substituted by OH, cyclopentyl, cyclohexyl or phenyl, naphthyl or benzyl which are optionally substituted by halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, or the radical --(CH.sub.2 --X--O).sub.n --H,X represents ##STR2## n represents the numbers 1-10, preferably 1-5, and P REPRESENTS THE NUMBERS 1-4Are readily soluble in water.
摘要:
Liquid finished formulations which are stable to storage and hydrolysis and are based on the lyotropic liquid crystal aqueous phase of the dyestuff of the formula ##STR1## which is present in water in a concentration of 23-35% at room temperature, are outstandingly suitable for the preparation of dyebaths and printing pastes for dyeing cotton, wool, regenerated cellulose, paper and leather.
摘要:
Liquid finished formulations which are stable to storage and hydrolysis and are based on the lyotropic liquid crystal aqueous phase of the dyestuff of the formula ##STR1## in water in a concentration of 12-35% at room temperature are outstandingly suitable for the preparation of dyebaths and printing pastes for dyeing cotton, wool, regenerated cellulose, paper and leather.