CS225587B1 - Evening agent for the coulouring of synthetic textile materials in the water by means of insoluble colouring agents - Google Patents

Description

(54) Egalizing agent for coloring water-insoluble synthetic textile materials

The present invention provides a leveling agent based on oxyethylated products suitable for application in the textile industry in the dyeing of synthetic materials by high-speed dyeing methods. In textile practice, similar leveling compositions composed on the basis of higher polyethylene glycols with a wide molecular weight distribution are used, but their presence in the dye bath may adversely affect the stability of the disperse dye system. It has now been found that considerably more favorable application properties can be achieved by using a combination of oxyethylenated glycerides of higher fatty acids having a carbon number of 6 to 24 containing 20 to 40 ethylene oxide units or higher fatty acids having a carbon number of 12 to 24 containing 20 to 40 ethylene oxide higher fatty acid emulsifier units having a carbon number of 12 to 24 containing 3 to 10 ethylene oxide units, or bitumen acids containing 5 to 15 ethylene oxide units, or mixtures thereof. The advantages of these compositions are high efficiency even at low concentrations of the leveling agent according to the invention, high stability of the composition over a wide temperature interval and beneficial effect on the stability of the coloring system containing disperse dye and usually ionic dispersants such as ligninsulfonates and tamole dispersants derived from naphthalenesulfonic acid condensation products. with formaldehyde. The leveling composition according to the invention can be advantageously prepared by mixing the above-mentioned components based on the oxyethylation products of bituminous and fatty acids or glycerides thereof with water and an alcohol having a carbon number of 1 to 3 at a higher temperature not exceeding 60 ° C. , i.e. higher and lower oxyethylated products, may be selected in a ratio of 1: 1 to 1:10, preferably 1: 2 to 1: 5, wherein the water and alcohol content is selected with respect to the flowability of the composition at temperatures of 20 ± 5 Deň: 32 ° C. Usually, however, the leveling compositions according to the invention also exhibit resistance to considerably lower temperatures up to -20 [deg.] C., which only increases their viscosity, but not the loss of homogeneity and the formation of a multiphase system. Furthermore, the presence of alcohol will have a beneficial effect on reducing the foaming of the dye bath in some demanding applications.

The application of the leveling agent according to the invention in the dyeing process is very simple and consists in supplementing the dyeing bath with the composition to a concentration of 0.1 to 5 gl ^{-1 of the} leveling agent, even with very poorly leveling dyes such as CI Disperse Yellow 23, CI Disperse Yellow 42, CI Disperse Red 121, CI Disperse Blue 73, achieves a very good uniform coloring on polyester textile materials. For dyes with less stable dispersion systems, a substantial reduction in the dispersion dye filtering on the dyed substrate is achieved.

The application of the leveling agent according to the invention is further illustrated in the examples, but not by way of limitation. Parts are parts by weight.

Example 1

A composition comprising 1 part oxyethylated fatty acid glycerides of 6 to 15 carbon atoms with 25 units of ethylene oxide, 3 parts oxyethylated oleic acid with 6 units ethylene oxide, 1 part ethyl alcohol and 1 part water is applied in an amount of 0.7 gl ^-1 to a dye bath containing 4% CI Disperse Yellow 42 and water, the total acidity of the dye bath being corrected by the addition of formic acid to a pH of 3 to 5. The high pressure dyeing process achieves a very level dyeing of the polyester substrate at 130 ° C in 20 minutes.

Example 2

A composition comprising 1 part of fatty acid exyetylation products having a carbon number of 12 to 24 with 20 units of ethylene oxide, 2 parts of oxyethylated oleic acid with 6 units of ethylene oxide, 1 part of oxyethylated tall oil, 1 part of water and 1 part of ethyl alcohol is applied in 1 g. I ^-1 to a dye bath containing 4% CI Disperse Yellow 60 and having an acidity corrected to a pH of 4 to 5. Good leveling without dye filtering is achieved in high pressure dyeing at 130 ° C in as little as 17 minutes.

Claims (1)

SUBJECT Egalizing agent for dyeing synthetic textile materials with water-insoluble dyes, characterized in that it consists of a mixture of the above oxyethylated resin acids based on phenanthrene alkylhomologs, wherein the alkyl contains 1 to 5 carbon atoms, 12 to 24 carbon fatty acids or glycerides of fatty acids 6 to 24 carbon atoms each having an oxyethylation degree of 20 to 40 ethylene oxide units BACKGROUND OF THE INVENTION and the following oxyethylated resin acids based on phenanthrene alkyl homologues, wherein the alkyl contains 1 to 5 carbon atoms, C 12 to C 24 fatty acids or C 6 to C 24 fatty acid glycerides each having an oxyethylation degree of 3 to 15 ethylene oxide units, optionally mixtures with water and an aliphatic alcohol having a carbon number of 1 to 3, the ratio of the higher and lower oxyethylated components being 1: 1 to 1: 10. T 54 1540-85 1983 Corrections in printed descriptions of inventions In the printed description of the invention for the copyright certificate. 225 587 (PV 7498- 82) complies with the investigation by inserting an extract and / or 'in column 2, line 9, column 3, line 29 and column 4, line 26.