CS255187B1 - Dye preparation - Google Patents

Abstract

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

Description

The subject of the invention is a dye preparation for dyeing wool, silk and polyamide textile materials, containing a synergistic mixture of a symmetrical 2:1 metallocomplex dye based on a super complex of constitution I

with cationic surfactants based on quaternary salts of constitution II

CH,

I ^J

R-O-CH,CHCH,-N-CH,CH,OH Z, i ! From Z

OH CH ₃ ⁺ X (II) where R is an alkyl radical with a carbon chain length of C ₁₀ to C ₁₈ and X ^- is a halogen anion and fillers such as simple inorganic electrolytes, sucrose, dextrose, urea and liquid water-insoluble substances, reducing the dustiness of the final dye preparation.

The dye preparation according to the invention is new and enables rational use of dyes and dyeing apparatus, a significant increase in the degree of utilization of the dye bath while simultaneously reducing the amount of environmentally damaging colored organic waste.

The dye preparation according to the invention can be advantageously prepared by mixing the said components I and II in a liquid state before drying in spray or fluid bed dryers, with the optimal content of component I in the final dye preparation ranging from 65 to 75% by weight, component II from 1 to 3% by weight and fillers from 22 to 34% by weight.

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

The advantage of the dye preparation according to the invention is the possibility of its application both in printing and in extraction dyeing processes on all types of dyeing apparatus, where in addition to shortening the dyeing time, highly stable dyeing of the substrate can be achieved without the need for the application of additional textile auxiliaries, as well as reducing energy consumption while simultaneously increasing the productive use of the dye bath.

The subject matter of the invention is further illustrated by the following example, which is not intended to be limiting.

Example

To the reaction mixture containing 75 parts by weight of the 2:1 super complex of constitution I, 7 parts by weight of a 30% aqueous solution of the surfactant of constitution II and 25 parts by weight of sodium sulfate are added at a temperature of approximately 60 °C. The resulting mixture is dried in a spray dryer at an inlet and outlet temperature ratio of 200/90 °C. The product is a final dye directly usable for dyeing the above-mentioned textile materials to blue shades from neutral dye baths containing ammonium sulfate.

Claims (1)

SUBJECT OF THE INVENTION Dye preparation for dyeing woolen, silk and polyamide textile materials, characterized in that it contains a synergistic mixture of symmetrical 2: 1 metal-complex dye based on the chromium complex of constitution I NOj (Z) with a quaternary salt-based cationic surfactant CH, I + RO-CH ₂ CHCH ₂ -N-CH ₂ CH ₂ OH X OH CH _{3 of} constitution II (II) wherein R is an alkyl radical having a carbon chain length of Ο ^ θ to and X ^- is a halogenanion and fillers such as simple inorganic electrolytes, sugars, urea and oleaginous, water-insoluble dust-reducing substances of the final dye composition, wherein the content of color component I is 65 to 75% by weight of component II 1 to 3% and the content of fillers 22 to 34 mentioned above. The corrections in the printed descriptions he invented! The description of the invention to the author's certificate No. 255 187 (PV 3779-86) issued on 15.11.1989 is invalid. The correct wording of the description of the invention will be printed again.