SU1315539A1 - Method of dyeing or printing textile material of triacetate or polyester fibres or their blend with cellulose-containing fibre - Google Patents

Abstract

The invention relates to dyeing and finishing production, in particular, to the method of dyeing or printing textile material from triacetate or polyester fiber or from a mixture of the latter with cellulose-containing fiber. The purpose of the invention is to increase the degree of fixation of the dye on the material and to intensify the process. The proposed method allows to increase the degree of dye fixation on the material from 90.4-90.8 to 97.6-98.5% while reducing the duration of the fixing treatment due to the fact that an additional preparation is added to the dye or printing composition , and dye fixation is carried out by simultaneous exposure of the material to microwave radiation at a frequency of 915 or 2450 MHz and vapor of the azeotropic mixture for 1-4 min. 4 tab. i (LJ JV CO CO

Description

eleven

The invention relates to dyeing and finishing production, in particular, to the method of dyeing or printing a textile material from three ethyl or polyester fibers or from a mixture of the latter with cellulose-containing fiber.

The purpose of the invention is to increase the degree of fixation of dyes on the material and to intensify the process.

The method is implemented as follows.

A dyeing composition containing preparations for final finishing is applied to the textile material by padding or printing. Drying of the material (after applying the dye solution) is carried out simultaneously with fixing treatment by joint exposure of azeotropic mixture of gasoline alcohol and water to the textile material and frequencies of 915 or 2450 MHz.

For studies, the frequencies 915 and 2450 MHz are used only.

The textile material can be processed by the proposed method both in the dry and in the wet-squeezed state immediately after padding, after the pre-drying stage, either in bulk or in the form of an unfolded web or tow.

Depending on the moisture content of the textile material, the duration of the fixation treatment varies from 1-2 minutes (pre-dried cloth) to 3-4 minutes in a wet state immediately after padding.

Pairs of an azeotropic mixture of benzyl alcohol and water are obtained by exposing the liquid azeotropic mixture to microwave radiation at a frequency of 915 MHz or 2450 MHz.

Example 1. Khlopkolavsanovuyu shirt tissue art .. 883, containing 33% polyester and 67% cotton and prepared for dyeing and printing, plus dye composition containing, g / l:

Disperse rko-pink 5

Active red 5 CX 10

Urea 20

. Carbamol CEM200

Catalyst 15

Water

. 1000

5539 .2

Then the fabric is squeezed to 80% weight gain and, in this form, is subjected to the combined exposure of an azeotropic mixture of benzyl alcohol and water, obtained by exposing the liquid aeotropic mixture to microwave radiation and to a microwave radiation frequency of 915 MHz for 3 minutes.

0 After treatment, the fabric is washed and dried according to the regimens. The fabric obtained is distinguished by an intense red color, the content of the dispersed dye on J5 of dacron component is 24.1 g / kg, and the content on the cotton component is 20.8 g / kg of fiber. The fabric of the fabric is distinguished by the persistent effect of the crushable finish — a total angle of 0 folds of 250.

And p and me 2 p Prepared for dyeing and printing polyester fabric art. 5069-70 plus dye composition containing, g / l: 25 Disperse violet K 20 Urea 100 Antistatic drug Melamine 10 Water Up to 301,000

Then the fabric is wrung out (80% wringing). and, by the pass stage, of predrying, is subjected to fixative treatment at Prddaser 1 at a microwave frequency of 2450 MHz and a duration of 3 minutes. At the end of the treatment, the fabric is washed and dried according to the regimens.

40 Violet color is intense. The degree of fixation of the dispersed dye is 97.6%. The fabric of the fabric is characterized by a stable effect of antistatic finishing - surface electrical resistance of 7.9-103 ohms

P. p and me 3, Triacetate fabric art. 32454, prepared for dyeing and printing, print composition, containing 50 g / l:

Disperse yellow durable 2K.20 Urea50 Thickener. Based on 55 sodium alginate (3%) 500 Antistatic preparation Oxyphos KD-6 10 Water Up

1000

The fabric is then dried and subjected to fixative treatment according to Example 1 with a microwave frequency of 2450 MHz and a duration of 1 minute. After processing, the fabric is washed and dried according to standard methods.

The fabric at the same time acquires a graded and uniform yellow color and a steady antistatic effect, characterized by a surface electrical resistance of 9.3-10 Ohms. The degree of fixation of the dispersed dye is 93.5%.

Example 4. Polyamide fabric art. 52025, prepared for dyeing and printing, plus a dye solution containing, g / l:

Disperse Pink Pink 20

Urea100

Thickener based

sodium alginate 10 I

Antistatic drug olecox-510

Water

1000

Then the fabric is wrung out (80% wringing) and, by min, the stage of preliminary drying. The fabric acquires a rich purple color simultaneously with the improvement of antistatic properties. The content of dyes on the wool and lavsan components of the fabric is 21.1 and 24.7 g / kg of fiber. The surface electrical resistance is 6.8-10 ohms.

fO EXAMPLE 6: On the viscose-lavanskaya fabric art. 82037, containing 33% viscose and 67% lavsan, after preparative preparation for dyeing and printing by padding, the following composition is applied, 15 g / l:

Red leaf 2 GN 30 Caustic soda

Urea60

Magnesium sulfate 20 (unit weight 1.26) 30 Antistatic drug Oleks-5 10 Water Up to 1000

Then the fabric is pressed to a weight gain of 25–80%, dried and processed according to Example 1 at a frequency of 15 MHz and a duration of 2 minutes. The fabric is washed and dried. Red color received from

ki, fixed according to example 1 at a frequency of 915 MHz and a duration of 4 min. 30 characterized by uniformity, brightness

After processing, the fabric is washed and dried.

The fabric is characterized by intense and uniform pink color, the degree of fixation of dispersed dye is 94.8% and the effect of antistatic finishing, corresponding to a satisfactory assessment of antistatic treatment (the value of the surface resistance of 6.8 ohm

Example 5. Patina fabric art. 2268 s, containing 50% lavsan and 50% wool, is impregnated with a dye solution containing, g / l:

Dispersed purple K

Acid violet

anthraquinone

Urea

Acetic acid

Sodium alginate

Antistatic melamine preparation

Water

-20

15 80 10

one

ten

Up to 1000

The fabric is pressed to 90%, for example, 1 at a frequency of 2450 MHz and

ca, dried and treated according to example 1 at a frequency of 915 MHz for 1 min. At the end of fixation, the fabric is washed and dried. .

155394

The fabric acquires a rich purple color simultaneously with the improvement of antistatic properties. The content of dyes on the wool and lavsan components of the fabric is 21.1 and 24.7 g / kg of fiber. The surface electrical resistance is 6.8-10 ohms.

fO EXAMPLE 6: On the viscose-lavanskaya fabric art. 82037, containing 33% viscose and 67% lavsan, after preliminary preparation for dyeing and printing with padding, the composition is applied, 15 contents, g / l:

Red leaf 2 GN 30 Caustic soda

Urea60

Magnesium sulfate 20 (unit weight 1.26) 30 Antistatic drug Oleks-5 10 Water Up to 1000

Then the fabric is pressed to a weight gain of 25–80%, dried and processed according to Example 1 at a frequency of 15 MHz and a duration of 2 minutes. The fabric is washed and dried. The resulting red color is from. 30 characterized by uniformity, brightness

and, on the basis of their viscosity, the dye content on the viscose and lavsan components of the fabric is 26.2 and 20.4 g / kg of fiber, respectively. Simultaneously, the surface electrical resistance decreases to 4.9 ,.

Example 7. A dye composition containing, g / l, is applied to the fabric from a mixture of cotton and polyester fiber (respectively 50 and 50%) with padding:

Disperse violet K 20 Active violet 4K 15 Urea 20

Carbamol CEM200

Catalyst - 15

Antistatic drug melamine. ten . Water Up to 1000

I

Then the fabric is pressed to weight gain.

80% and, in the wet extract state, are subjected to fixative treatment with a duration of 3 minutes.

At the end of the treatment, the fabric is washed and dried according to standard

method.

5 13

Fabric simultaneously acquires a rich and uniform purple color, as well as sustainable effects of anti-static and crushable finish. The content of dye on cotton and lavsan components of the fabric is, respectively, 19.7 and 23.4 g / kg of fiber. The magnitude of the surface electrical resistance and the total opening angle of the folds are respectively 4.9-10 Ohms and 262 °.

Example Prepared for dyeing and printing flaxurvy fabric containing 50% flax and ..50% lavsan, plus an aqueous solution containing, g / l: Disperse bright pink10 Active red 5 CX 10 Urea 30 Carbamol CEM 250 Catalyst 20 Antistatic preparation oxyfos KD-6 10 Water Up to 1000 After treatment, the fabric is washed (wringing degree 80%) and fixed according to example 1 at a frequency of 915 MHz and a duration of 3 minutes.

Fabric color is distinguished by intensity and uniformity. At the same time, the fabric simultaneously acquires the effect of a crush-resistant and antistatic finish. The content of the dyes on the flax and lavsan components is estimated at 20.6 and 22.8 g / kg of fiber, respectively, and the surface electrical resistance and the total opening angle of the fold are respectively 5.5): and 244.

The obtained experimental data on the technical results of dye fixation, final finishing and on the residual solvent content in the tissues according to the proposed and known methods are given in Table. one.

As can be seen from the data table. 1, the processing of a textile material according to the inventive method, with a combined effect on the colored or printed textile material of microwave radiation and azeotropic vapors, simultaneously provides drying of the material, fixation of dyes, removal of excess organic solvent and imparting tissue effects

5396

that final finish. Moreover, the yield of dyes on fabrics in all cases is higher compared with the known method, and the indicators of the final finishing of the material correspond to a good evaluation of the quality of processing.

For example, as a result of treating cotton cotton cotton with a cotton content of 67% in the wet extract state without pre-drying, the yield of the active and disperse dyes on the respective components of the fabric 24, 1

 and 20.8 g / kg of fiber (for a known method, the corresponding values are 22.9 and 2.9 g / kg of fiber). The total opening angle, which characterizes the quality of the non-crushable finish, is 250 (180 ° for the original fabric and fabric treated by a known method with the addition of finishing preparations to the dyeing composition). At the same time, the duration of the fatigue treatment Cr decreases from 7 to 3 minutes, and the content of benzyl alcohol in the material decreases from 5.7 to 0.4 wt.%, Which corresponds to the residual content of solvent in the fabric.

0 after desorption processing.

As can be seen from the above example. under conditions of dyeing or printing by a known method, no simultaneous finishing of the material is provided. In addition, it is not possible to fix the active dye on the cotton component of the cotton-cotton fabric, if it is processed immediately after padding without preliminary drying. The high residual solvent content in the tissues requires desorption treatment.

5 Inclusion in the process of additional operations of suspending textile material before fixation, desorption treatment and its final finishing leads jQ to an increase in the total duration of the process to 15 minutes (compared to 3 minutes for the proposed method). Thus, according to the proposed method, the total processing time (for fixing the dye and final finishing of the fabric) is reduced by 4-6 times. In this case, there is no need for additional costs. Material and Labor Resource5

0

 . . 713

The final finishing operations, for example, to give the fabrics an indelible finish, they should be impregnated with a finishing compound, then dried and subjected to heat treatment with hot air at ISO-ISO C for 2-4 minutes, then washed and again dry.

In order to confirm the need for joint exposure of dyed or printed textile material to activated vapors of azeotropic mixture and microwave radiation, a comparison of the proposed method and a known method, an artificial analog, was carried out. The latter consists in treating the opaque textile material with microwave radiation at a frequency. 2450 MHz for 2 minutes followed by steaming of the material in azeotropic vapors for 2-7 minutes. The obtained experimental data are presented in Table. one.

From the data table. As can be seen in Figure 1, sequential treatment of the material with microwave radiation and azeotropic mixtures of the mixture does not allow obtaining the results that are provided by simultaneous processing of azeotropic mixture and microwave radiation with pairs. The artificial counterpart has inherent drawbacks characteristic of the known method, namely, the impossibility of simultaneously fixing dyes and finishing the textile material, high residual solvent content on fabrics and the need for its subsequent removal, low yield of active dyes on fabrics without prior drying, high duration of the process fixing. For example, if according to the proposed method for 3 minutes of processing, the degree of fixation of dispersed dye on polyester fabric is 97.6%, and the surface electrical resistance is 7.9-10 Ohm, then for 9 (2 + 7) minutes of processing by an artificial analogue the degree of fixation is 92.4%, and the surface electrical resistance remains at the level of the original fabric (8.9-10 Ohm). The residual solvent content in this case increases from 0.5% by weight according to the proposed method to 6.5% by weight. known, i.e. at 13

98

times, which necessitates the subsequent desorption processing of textile material.

As a result of processing the textile material according to the proposed method, the maximum degree of fixation of dyes is achieved, drying, and the removal of excess benzyl alcohol from the fibrous

material and making the last sustainable effect of the final finish. For polyester fabric, the degree of fixation of dispersed violet K is 97.6% (90.8% by the known method; the maximum residual content of benzyl alcohol is 0.5% by weight (6.5% by weight by the known method), and the surface electrical resistance of the fabric

equal to 7.9-10 ohms, which corresponds to the good quality of the antistatic finish (6.4-10 by a known method, which is typical for unfinished fabric).

However, the duration of the fixing treatment is reduced in comparison with the known method

2-4 times. I

As can be seen from the table. 2, speed.

tissue processing and, consequently, the equipment performance when using the proposed method is twice as high (although the processing time by a known method is 1012 s. i.e. 10-20 times less than the proposed method). This is due, first of all, to the technical impossibility of providing the azeotropic mixture through the fabric web more than 2–3 m. This fact limits the processing speed of the tissues to 30 m / min. The proposed method allows not only to process fabrics at a speed of 60 m / min, but also to reduce unit steam consumption by 20%, electricity by 30%, significantly increase the labor productivity of workers and removal of products from 1 m of production area, and reduce the specific metal consumption. equipment.

Claims (1)

Invention Formula The method of dyeing or printing textile material from triacetate or polyester fiber or from a mixture of the latter with cellulose-containing fiber by applying a dyeing or printing composition onto it 9 the basis of the dispersed and / or active dye with subsequent fixation of the dye in pairs of azeotropic mixture of benzyl alcohol and water, washing and drying, characterized in that, in order to increase the degree of fixation of the dye on the material and to intensify the process Specifies the continuity of consecutive pairs of azeotropic mixture. mixed fabrics through firewood is given by artificial composition, in the numerator 5539 ten a dye or printing composition is applied to the material, additionally containing a preparation for final finishing, and fixing of the dye is carried out by simultaneous exposure of the material to microwave radiation with a frequency of 915 or 2450 MHz and azeotropic vapors for 1-4 minutes. T e in l and t and t old ny fkskrudyuy processing and volkhovovy nppucheanvm and conepitaKiie dyes in g / kg aaolya and aeaiekatel dal for aturzlyoy composed of gatsy weaving and. II The total angle of the folds, hail The content of free formaldehyde on fabric,% Reduction of the breaking load,% on basis by. duck Yield of dyes, g / kg, active. dispersed 1315539 12 Table Table3 256 65.8 26 25 10.1 5.5 Indicators Combined chamber is azeotropic - radiation (known method) The speed of movement of the fabric, m / min Equipment performance, Unit costs a pair of normal, kg 1000 m of cloth electricity, kW, h 1000 m of cloth Productivity of workers, people. Removal of products from 1 m productions space occupied Editor A. Shandor Compiled by A. Belkn Techr ed M. Khoda Nich Order 2322/29 Circulation 419Subscription VNSHSHI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Design, 4, Table4 Milk azeotrope-microwave (proposed method) 60 6552 176 25 1689 2184