SU93645A1 - Suspension method of dyeing with insoluble azo dyes formed on the fiber - Google Patents

Description

The usual way of dyeing fibrous materials insoluble with azo-based fibers (so-called ice dyeing) formed on the fiber consists in impregnating the material to be painted, first with a solution of nitrogen, and then with a solution of diazo-composites;

Also known is the suspension method of dye dyeing, in which the material being painted is treated with an aqueous suspension of azotole, obtained mechanically by the first route, and then the azotole is combined on the fiber with yes, azo composition of y. HeiaacTaTKOiM of this method is the fragility of the resulting stains to soap.

The proposed method of ice dyeing is also Suspended, and its main difference from the Uzzanine is that a suspension of Nitol (azo-compositing) is applied to the fiber using an alkaline solution in order to convert Nitol to Nitol on the fiber. As a result, Yush, it combines not nitrogen, but nitrogen.

PrVI (Mush1est Vom proposes a1moto the method is that he:

a) allows drying: it allows deep penetration of the suspension of azototal into volokolno and the formation of azototal in the thickness of the fiber / ae only on its surface;

b) provides the possibility of obtaining a wide range of colors (blue, orange, pink, red) with high strengths, and friction and soaping 1M at a temperature of 100 °; on strength to rrenia and soap boxes of the arakm, obtained by the proposed method, completely compete with the colors of the best martins and dyes, which allows one to work on the luring of the dyeing of embroidery threads (iris, muline) alizarin red on aluminum and ice stained with dyeing.

The required suspension of nitrosol for the proposed method of suspension is recommended to be obtained by precipitating a solution of azotoil with an acid, for example, acetic acid, in the presence of alizarin; No. 93645- 2 - Example 1. Dyeing with scarlet K, az and azoamine scarlet Zh on azotool ANF. 1. Preparation of a suspension of Nitol ANF: Azotol ANF Alizarin oil, 70% mine, and neutrals Acid soda beats. at. 1.26 Hot water (98-95 °) Duration of dissolution Water hot Acetic acid — until neutral: 2. Cbiipiofi impurity Marserized yarn: F; and, from Humidity in front of the ionizer Nitrogen concentration Impregnation temperature Bath module Impregnation duration Yarn weight gain after impregnation 3. Processing with a further soda solution: Vaina module Caustic soda beats. at. 1.26 Temperature Duration Spin on the centrifuge Humidity of the yarn before the combination 4. Prepare the diazores of az-oamine scarlet 0.1azamine scarlet G and combine them with azo-tol recipes recommended in 1 liter of 1 dl. each: the first nri 6. Mosing with a solution of weakly1; firmer Soap 50% Temperature Bath module Duration 7. Wash 1 in water: Temperature Duration 8. Second soap: 50% Temperature Bath module Duration 9. Two warm rinses on high water 35 ° Io 20 10. Otszh1km in a centrifuge and drying. Example 2. Dyeing with azoamine red. O p 1. Preparation of suspensions and azo-tols. A: Nitotol-O Alizarin oil, 70%, neutral Caustic soda beats. at. 1.308 Hot water (98-95 °) Duration of dissolution Water Hot acetic acid — until slightly acidic reaction in a varnish of pink O 1 kg 0.5 l 1.45 l 30 l 20 min. 23 l musa. rented on water: 50-55% 18 e / l 55-50 ° 1:20 55 sec. 55-50% 1:25 35 l (l / l 40-35 ° 20 mip. 55-50% K, azoa m1ina roseomi is carried out by type, yes KpamieiHHiH. 5 °, the second is 35. 5 g / ug 65-60 ° 1:25 30 minutes 35 ° 20 minutes 5 65-60 ° 1:25 30 minutes in. Each. Nitrogen O. kg 0.83 kg l 30 l 20 min 23 l sou.