SU891666A1 - Tetrazolylformazane as dye for dyeing and printing fibrous material - Google Patents

Description

The invention relates to the preparation of a new chemical compound, namely 1 - (tetrazolyl-5) -3-phenyl-b-1n -carboxyphenyl-formazan of the formula (V- / I). The indicated compound can be used as a dye in dyeing and printing fibrous materials .... The range of dyes has significantly expanded due to the introduction of dyeing and printing textiles of metal complex dyes, in particular acid and disperse, metal complex. It is known to use as a dye for dyeing and printing chromium violet K tl. However, the applied metal-containing dyes require a high temperature of dyeing, for example, for synthetic fibers 1OO C and higher, which leads to an increase in heat and energy consumption and, in addition, a decrease in the elastic-elastic properties of the fibers being dyed features of wool. Metal complex dyes for low-temperature dyeing of protein fibers are practically absent. The purpose of the invention is to expand the use of dyes suitable for low. temperature dyeing of fibrous materials, as well as in printing them. This goal is achieved by using tetrazalilformazan of formula 1. The synthesis of the proposed compound is carried out according to the scheme

N

N

C UN Example. To a solution of 1.88 g (0.01 mp) of 5 tetra-eopilles of raeo 1a benzapydehyde in 1OO ml of 2% NaOH, with vigorous stirring at 0-2 ° C, add a solution of colony diazonush prepared from 1.37 g (0.01 mol) benzoic acid p-amine, 2.7 ml of concentrated NSISO ml of water and 0.69 g of N and in 8 ml of water, the reaction solution is exhausted for one hour at room temperature and acidified with 1 N, HC to pH 2 -3. The precipitate formed is washed with water and dried in the air. Yield 3.30 g (9.8%) m.p. 156 (raap. Small red-orange prisms from methanol). UV spectrum1 VY, J; RM (ys E) in ethanol; ZOO (4.18) 48O (3.96) in 0.1 nNaOH; 528 (4.99); complexes with 662 nm. Found,%: C 53.41; H 3.68; H32.83 C SCijF NsOu .; Calculated,%: C 53.56; H 3.59; N 33,3.2. The dye dyes natural fibers, in particular wool, silk and cotton, synthetic polyamide fibers: iio. fine fibers, viscose. EXAMPLE 2. To dye a pre-prepared fibrous material with a pre-prepared fibrous material with a pre-prepared fibrous material, it is prepared a dye bath which is composed of a dye bath. .-. The following components are included in the ROY: Dye 2-8 by weight of hair Calcini soda1, 2% () 0.5% Sodium alginate 0.5% Disperser NF Dyeing starts at 40-45 ° С (510 min), then prepares Smut temperature to 60-7 ° C (20 minutes); further, at this temperature, paint for 30 minutes. At the end of the dyeing process, the dyebath should be run, and the stylish material should be wrung out. Then, a 1 ° treatment is carried out with a solution of a salt of a divalent metal (K1C2 | gti CoC with a concentration of 5-10 g / l at 7 ° -80 ° C for min. For complexing. Next, a step-by-step rinsing is carried out: cold water 5 "-1O min, with a solution of MS 1.5 g / l at 50 ° C for 1O5 min, warm water (45-55 ° C) 5-6 min cold - 2-4 min. The dyed fiber is dried, depending on the type of fibrous material, 9О-120 С to conditioned humidity. Tetrazolylformazan gives even and good colors when it is developed with salts of salt and cobalt in the mid-wave part of the spectrum. (blue, violet, and others. Colors). By its coloring properties, a new dispenser can be compared with acid-chromic: chrome-violet K. Tables 1 give comparative data for the coloring properties of the proposed known dyes. Formazan has the difference in solubility it is difficult to dissolve in water and rather quickly in a weakly alkaline solution at 40 ° -45 ° C. The data in Table 1 show the good dyeing properties of the present dye, especially from the point of view of the technological parameters of dyeing. The advantage of tetrazolyl-containing formazan is the ability to dye various types of fiber materials, both protein and cellulose, both synthetic and polyamic-1. The strength of dyes obtained on silk, nylon, wool, the proposed heat tem is presented in Table. 2. The proposed tetrazolyl formazan can be used in the direct printing of ornamental colors on fabrics made of natural silk, wool, wool mixed with other fibers, in particular, nitron, viscose, as well as nylon, viscose, cotton .. Example 3. The printing is carried out with printing ink of the following composition: Dye according to the recipe OO-4O g / kg Soda ash 80 g / kg Disperser NF 30 g / kg Thickener - 810 g / kg Water Up to 1OOO g Preparing the furnaces of paint. B water at 4О-45 С is dissolved in soda ash, Disperser NF and then dye. After complete dissolution

Neither colorant is injected at constant mixing. Sapittose sodium alginate is recommended as a thickener. The method of preparation of algae of natovy or salvitoennye thickener is common. The proposed dye is compatible with these thickeners in printing ink. The consistency of printing ink is good. Techno-printing properties of printing ink provide intense even color, the desired sharpness of the contour.

 Technologists printing textiles offered dye, as follows:

1.Printing mechanical, printed shafts or mesh patterns (flat or round).

2. Drying (c. Depending on the type of fiber at 9O-120 ° C).

3. Processing of the printed dry fabric in the expansive bath.

4. Drying.

5. Maturing under conditions of reductive maturity.

6. Flushing (example 2).

7. Drying.

Indicators of the color stability of printed products made of silk and wool are given in Table. 3

As can be seen from the table. 3, the color stability rates are high.

Compound I can be widely used in the textile and knitwear industry, as well as in the household service, at dry-cleaning enterprises for dyeing and printing textiles.

Table 1

la pri

and soap

at

table 2

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but

4/4/4 4/4/4

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5/5/4 5/5/43/4/4 Applicable

soap solution at 40 ° C

sweat.

paint over friction:

dry wet

F o rmu l invention

Tetrazolyl formazan formula J

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t n

V

I

BUT

Prod. tab. 2

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as a dye for dyeing and printing fibrous materials.

I. Sources of information

taken into account in the examination

1. Dyes for the textile industry. Color guide. M., Himi, 1971, p. 232, 234. below. Estimates of the strength of the coloration are given when nickel salts develop. When developing salts of chromium and cobalt, the indicators of color stability are similar. Table 3

Claims (1)

Claims Tetrazolyl formazan of the formula он SOON as a dye for dyeing and printing of fibrous materials. M Sources of information taken into account in the examination 1. Dyes for the textile industry. Color reference. M., ⁴⁰ Chemistry, 1971, p. 232, 234.