Abstract:
Pigment pastes, containing as the binder 3-20% by weight of a polyester-polyurethane, which is obtained by reaction of a polyesterpolyol of average molecular weight 500-3,000, based on hexanediol or butanediol-1,4 and adipic acid with isphorone diisocyanate or dicyclohexylmethane-4,4''-diisocyanate and subsequent lengthening of the molecular chain by means of isophorone-diamine and as the solvent at least 20-90% by weight of ethylene glycol monoalkyl ether, are universally suitable for the colouring of one-component polyester-polyurethane textile coating compositions.
Abstract:
ORGANIC OR INORGANIC PIGMENTS ARE TREATED BY CONTACT IN THE DRY OR DISPERSED FORM, WITH CYCLOALIPHATIC AMINE, PREFERABLY AT ELEVATED TEMPERATURES. OPTIONALLY, THE TREATED PIGMENTS ARE THEN ACIDIFIED. TREATED PIGMENTS EXHIBIT GOOD DISPERSIBILITY AND HIGH TINCTORIAL STRENGTH.
Abstract:
Compositions and a process for dyeing and printing synthetic materials of polyacrylonitrile, polyamides, or polyesters which contain anionic groups which comprises using a treating composition for aforesaid materials which consists of an aqueous dispersion of a basic dyestuff salt and a polynuclear aromatic sulfonic acid whereby the fixing times are reduced and fast and level dyeings are produced.
Abstract:
SOLUTIONS OF BASIC DYESTUFFS CONTAINING 20 TO 80% OF BASIC DYESTUFF, 5 TO 80% OF A LOWER A- OR B-HYDROXY-ALKYLNITRILE OR A- OR B-LOWER ALKOXY LOWER ALKYLNITRILE.
Abstract:
Pigments are treated by contacting them with a mixture of (a) a resinic acid, e.g., colophony, or a salt of a resinic acid; and (b) a primary or secondary amine having the formula R-NH-R1 in which R is a five- to six-membered, optionally substituted cycloaliphatic radical; and R1 is hydrogen, R, or an alkyl group optionally substituted by an NH2 group and containing two to four carbon atoms, or by preparing the neutral or acidic aqueous pigment in the presence of the treating agents (a) and (b). The treated pigments exhibit advantages such as better gloss and covering power.