CS254617B1 - Dye preparation - Google Patents

Abstract

Dye preparation for dyeing wool, silk and polyamide textile materials, containing a synergistic mixture of a symmetrical 2:1 metal complex dye based on a chromium complex of constitution I, a cationic surfactant based on quaternary salts of constitution II where R is C10-18 alkyl and X is a halogen anion and fillers from the group including simple inorganic electrolytes, sugars, urea and oily, water-insoluble substances, reducing dustiness.

Description

The present invention provides a dye composition for dyeing woolen, silk and polyamide textile materials, comprising a synergistic blend of a symmetrical 2: 1 metal-complex dye based on the chromium complex of constitution I

with cationic surfactants based on quaternary salts of constitution II CH,

R-O-CH, CHCH, -N-CH, CH-OH 2,2,2 22nd

OH CH ₃

Wherein R is an alkyl moiety with a carbon chain length of up to _C3g and X - is a haloanion and fillers such as simple inorganic electrolytes, sucrose, dextroza, urea, and liquid insoluble substances which reduce the dustiness of the final dye composition.

The dye composition of the present invention is novel and allows the rational use of dyes and dyeing apparatuses, substantially increasing the degree of use of the dyeing bath while reducing the amount of ecologically degrading colored organic waste.

The dye preparation according to the invention can advantageously be prepared by mixing said components I and II in the liquid state before drying in spray or fluid driers, the optimum content of component I in the final dye composition being in the range of 65-75% by weight, component II 1-3% % by weight and fillers 22 to 34% by weight.

The cationic surfactants of constitution II can advantageously be used for emulsifying oily substances which reduce the dustiness of the final product, which may be mineral and synthetic oils, silicone oils or dodecylbenzene.

The advantage of the dye composition according to the invention is the possibility of its application in both printing and drawing dyeing processes on all types of dyeing apparatuses, where besides shortening of dyeing time highly stable dyeing of the substrate can be achieved without additional textile auxiliaries. productive use of dye bath.

The invention is further illustrated by the following non-limiting example.

Example

To a reaction mixture containing 70 parts by weight of a 2: 1 metal-complex dye of constitution I is added at a temperature of about 60 ° C 10 parts by weight of a 30% aqueous solution of constitution II and 27 parts by weight of sodium or ammonium sulfate. The mixture is spray dried at an inlet / outlet temperature ratio of 190/90 ° C. The product is a final dye directly useful for dyeing the above textile materials to black shades from neutral dye baths containing ammonium sulfate.

254 617 Bl

Dye preparation for dyeing woolen, silk and polyamide textile materials, characterized in that it contains a synergistic mixture of a symmetrical 2: 1 metal-complex dye based on the chromium complex of constitution I

Claims (1)

SUBJECT OF THE INVENTION NO ₂ with a cationic surfactant based on quaternary salts of constitution II CH, AND -Nl CH, CH ₂ CH ₂ -n-CH ₂ CH ₂ OH OH Wherein R is an alkyl moiety having a carbon chain length of C18 to C18 and X is a haloanion and fillers such as simple inorganic electrolytes, sugars, urea and oily, water-insoluble dust-reducing substances of the final dye composition wherein the color component I % by weight 65 to 75%, component II 1 to 3% and fillers 22 to 34%.