SU992634A1 - Method of colouring textile materials made from blends of polyester and cellulose fibres - Google Patents

Description

399 The disadvantages of the known methods are the toxicity of the dyebath due to the use of ethylene glycol and low strength characteristics for wet treatments and light (3 and 3-4 points) In the first case, as well as the attenuation of dyed fiber by% in the second. When dyeing dispersed active dye of cotton-cotton fabric, a dye bath based on vinyl sulfone dye, organic solvent, mainly ethyl alcohol, non-ionic ethoxylated surfactant and carrier of o-dichlorobenzene is used. The disadvantages of this method include the complexity of technologies due to the need to use organic solvents and toxic o-dichlorobenzene, as well as the fact that in a number of cases the necessary lightfastness is not achieved nce color. In addition, the selection of light-resistant vinyl sulfonic dyes does not provide the breadth of the color gamut. Closest to the proposed method of dyeing textile materials from a mixture of polyester and cellulose fibers with a mixture of dispersed and active dye, according to KOTqpoMy, a dye composition based on dispersed and active dye, nonionic surfactant, sodium alginate, sodium bicarbonate, urea is applied to the starting material and water in the following ratio of initial components, g / l: 20-106 Disperse dye 2O-4O Active dye Surface-active 3-5 substance 35-6О Sodium alginate 20-25 Bicarbonate sodium 50-150 Urea Else (before the printed composition additionally contains a thickener in the amount of 7OO kg per kg of printing paste. dried at 13О-135с and thermo-processed at 180-215 ° С 60 with t6. The material painted according to the known method has a high resistance to wet treatments and light (5 and 5-6 points). The degree of fixation of the dye is 73% (for dispersed) and 63% (for active). 4 The complexity of the technological process is due to the need for color, compatibility, and physicochemical characteristics (reactivity, di fusional properties) of two different dyes. The sensitivity of some disperse dyes to alkali. The chi, necessary for fixing the active diluents, as well as the possibility of reaction between the dispersed and active dyes, reduce the efficiency of their use and the possibility of recording the white background when printing fabrics. These drawbacks cause the limited color gamut, the difficulty of achieving uniform color and high consumption of dyes. The purpose of the invention is to simplify the process, reduce the consumption of dyes, as well as expand the color gamut of the conservation of high strength properties and equal color. L. The goal is achieved by applying a dye composition based on an active dye, a non-ionic surfactant, sodium alginate, bic bo sodium, urea, and water followed by the method of pulping textile materials from a mixture of polyester and cellulose fibers. drying at 130–135 ° C and heat treatment at 190–200 ° C; in the dye composition, water-insoluble azo- or anthraquinone dye containing halogen-alkyl, epoxyalkyl or 2-hlcp-6-di - (- ks | yutyl) -aminotriahinovye groups and imidlively acetamide and ludigol in the following ratio of initial components, g / l: Dye2O-30 Urea100-120 Acetamide50-60 Sodium bicarbonate 20-25 Ludigol1-2 Non-ionic PAV3-5 Sodium alginate 6% 4O 50 WaterOther (up to 1 l) heat treatment is carried out for 1.5-2 minutes. Using this composition for printing, thickeners are additionally introduced into it. Example 1. A cotton-cotton fabric containing 67% polyester and. 5 & 92634 33% cotton fiber, plus a composition of 33% dye containing formula, 6 hloikohch} vonokon, type with a redder of the formula 9 Composition of the plus solution, g / p: Dye25 Urea110 Acetamide55 Sodium bicarbonate 22.5 Ludigsch1.5 Neon PAV4 Sodium Alginate 6% 45 Fabric dried at 133 ° C for 3.5 minutes and treated with hot air ARP 19 C 1.5 minutes. Example 8. A cotton-cotton fabric containing 67% polyester and 33% cotton fibers is printed with a composition containing a dye of the formula O (it.) (L Ngt - (Mon) - (lH (

cliHzdHzciHFOg - / yiTldHjdHzOH

The composition of the positive solution, g / l: Dye25

Acetamide55

Sodium bicarbonate 22.5

Ludigol1,5

Nonionic PAV4

Sodium alginate

6% 45

Water Else (up to 1l),

The fabric is nourished at 3.5 minutes and treated with hot air at 195 ° C for 1.5 minutes.

Example 10. A cotton-cotton fabric containing 67% polyester and 33% cotton fibers is printed with a composition containing a dye of formula 8 Printing ink composition, g / kg: Dye25 Urea11O Acetamide55 Sodium bicarbonate 22.5 Ludigol1.5 Non-ionic surfactant Sodium alginate 12% The rest (up to Water 1 kg) The fabric is dried 1ph 133 C for 3.5 minutes, heated with hot air at 1.5 minutes. PRI me R 9. Cotton-cotton ditch containing 67% polyester and cotton fibers, plus a solution containing a dye of the formula

cJlHadHzdHNOz

Ink composition,

Dye

Urea

Bicarbonate sodium

Ludigol

Nonionic surfactant

Sodium alginate

12%, 475

WaterOther (up to I kg)

The fabric is dried at 3 min. Indicators of the durability of the paint are shown in the table.

Claims (5)

1 2 3 4 The method can be carried out on the hot-melt dyeing line and does not require the creation and installation of special equipment. The application of the proposed method allows to reduce the consumption of dyes by using instead a mixture of active and disperse dyes that require special processing for their application in fixation, one class of disperse dyes are active, reduce processing time due to the possibility of realizing uninterrupted technology. Simplify the process, get friction-resistant , light-resistant, monochromatic stains, as dyes mix well with each other, which expands their color range, and also excludes the organ ical solvents and toxic vectors. DETAILED DESCRIPTION Method for coloring textile materials from a mixture of polyester and cellulose fibers by applying a dye composition based on an active dye, a non-ionic surfactant, sodium alginate, nagrigrite bicarbonate, urea, and water, followed by drying at 13 O-13 S and heat treatment 1 FIP 190- 200 C, characterized in that, in order to simplify the technological process, reduce the consumption of rasiteli and expand the color gamut while maintaining high strength properties and uniform color, dyeing As an active dye, a water-insoluble azo- or anthrachial dye containing halogenalkyl, epsyalkyl or 2-chloro-6-di-α-oxyethyl-aminotriazine groups and additionally acetamide and ludigol are used in the following ratio of initial components, g / l Dye 20-30 Urea1OO -12O Acetamide 5О-60 Sodium bicarbonate 20-25 Ludigol 1-2 Non-ionic PAV3-5 Alginate sodium 6% 40-5O WaterOther (up to 1 l) and heat treated for 1.5-2 MISS Information sources; Taken into account the examination 1.Putevg USA N 4O172S6, cl. Tob P 3/82, published. 1978 2. Japanese Patent Vn 49-43514, cl. 48 In 13, published. 1974. 3.Tubl tire L.I. The use of dyes of the same class when dyeing cotton-cotton fabrics. Cand. bottom. M., MIT, 198O. 4.S7cx3ov / eW A., NsaEiviowski V /. przeaСаЗ NvtoKienMiez. 1979, Ni 12, p. 686-689. 11992634 12 5. Patent of Great Britain6. Patent of France M 2243295, M 1468562, cl. DO6 P 3/85, publ. cl. D06 P 3/872, published. 1975 1977. (in the prototype).