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One bath process dyeing process of polyester cotton dispersing dye and reactive dye

A technology of reactive dyes and disperse dyes, used in dyeing methods, textiles and papermaking, dry cleaning fiber products, etc., can solve the problems of hindering the dyeing of polyester-cotton blended fabrics, unstable color fixing, cotton yarn color difference, etc. Fastness level, high alkali resistance, effect of color stabilization

Active Publication Date: 2016-03-23
杭州集美印染有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the color fixing temperature of disperse dyes is above 100°C, and the color fixing temperature of reactive dyes is below 100°C, so different dyes, as well as the process requirements of pH conditions and color fixing temperature differences required by different dyes, hinder polyester-cotton blended fabrics. Dyeing with the same bath and the same heating curve will cause specific problems such as color flowering, cotton yarn color difference, and weak color fixation.

Method used

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  • One bath process dyeing process of polyester cotton dispersing dye and reactive dye
  • One bath process dyeing process of polyester cotton dispersing dye and reactive dye
  • One bath process dyeing process of polyester cotton dispersing dye and reactive dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] One-bath dyeing of light-colored single-color disperse / reactive dyes, fabric specifications: polyester-cotton blended fabric No. 58 / 9 32*32 / 120*70 and polyester-cotton blended fabric No. 63 32*32 / 120*70.

[0039] S1. Immerse the greige cloth in a 40°C coagulation bath, add dyeing auxiliaries, disperse / reactive dyes and sodium sulfate in sequence, and the bath contains:

[0040]

[0041] Then add acetic acid to adjust the pH to 4-6 (adjusted to 5.7 in this example), and then raise the temperature to 130°C at a rate of 1-1.5°C / min for about 1h20min, keep it for 30 minutes and then rise to 80°C.

[0042] S2. Pre-dry the cloth with infrared pre-drying and oven pre-drying, the pre-drying temperature is 100°C, and the time is 30s.

[0043] S3. Roasting to fix the color, the roasting temperature is 210°C, and the roasting time is 100s.

[0044] S4. Soaping, use NP-10 as the soaping agent, the dosage is 2g / L, add hydrosulfite 2g / L, soap wash at 95°C for 15 minutes, and then...

Embodiment 2

[0048] One-bath dyeing of light-colored polydisperse / reactive dyes, fabric specifications: polyester-cotton blended fabric No. 58 / 9 32*32 / 120*70 and polyester-cotton blended fabric No. 63 32*32 / 120*70.

[0049] S1. Immerse the greige cloth in a 40°C coagulation bath, add dyeing auxiliaries, disperse / reactive dyes and sodium sulfate in sequence, and the bath contains:

[0050]

[0051] Then add acetic acid to adjust the pH to 4-6 (adjusted to 5.7 in this example), and then raise the temperature to 130°C at a rate of 1-1.5°C / min for about 1h20min, keep it for 30 minutes and then rise to 80°C.

[0052] S2. Pre-dry the cloth with infrared pre-drying and oven pre-drying, the pre-drying temperature is 100°C, and the time is 30s.

[0053] S3. Roasting to fix the color, the roasting temperature is 210°C, and the roasting time is 100s.

[0054] S4. Soaping, use NP-10 as the soaping agent, the dosage is 2g / L, add hydrosulfite 2g / L, soap wash at 95°C for 15 minutes, and then wash wit...

Embodiment 3

[0058] Single-color disperse / reactive dye dyeing in one bath of neutral color, fabric specifications: polyester-cotton blended fabric No. 58 / 9 32*32 / 120*70 and polyester-cotton blended fabric No. 63 32*32 / 120*70.

[0059] S1. Immerse the greige cloth in a 40°C coagulation bath, add dyeing auxiliaries, disperse / reactive dyes and sodium sulfate in sequence, and the bath contains:

[0060]

[0061] Then add acetic acid to adjust the pH to 4~6 (adjusted to 5.2 in this example), and then raise the temperature to 130°C at a rate of 1~1.5°C / min.

[0062] S2. Pre-dry the cloth with infrared pre-drying and oven pre-drying, the pre-drying temperature is 100°C, and the time is 30s.

[0063] S3. Roasting to fix the color, the roasting temperature is 210°C, and the roasting time is 100s.

[0064] S4, adding a quaternary ammonium salt color fixing agent for color fixing treatment.

[0065] S4. Soaping, use NP-10 as the soaping agent, the dosage is 2g / L, add hydrosulfite 2g / L, soap wash...

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Abstract

The invention discloses a one bath process dyeing process of polyester cotton dispersing dye and reactive dye. The one bath process dyeing process comprises the steps that a dyeing assistant, the dispersing / active dye and anhydrous sodium sulphate are sequentially added to a coagulating bath at the temperature of 40 DEG C to 50 DEG C, and then glacial acetic acid is added till the pH of the system reaches 4-6; the temperature is raised to 120 DEG C to 135 DEG C, the heating rate ranges from 1 DEG C / min to 1.5 DEG C / min, and the temperature is kept for 15 min to 50 min; then the temperature is reduced to 80 DEG C to 90 DEG C, treatment is carried out, and the bath ratio of the coagulating bath is 1:(10-60); the dispersing / active dye is prepared from, by weight, 0.5%-1.5% of dispersing dye and 0.5%-1.5% of reactive dye, the dispersing dye is selected from at least one of dispersing brownish yellow XF2, dispersing ruby XF2 and dispersing dark blue XF2, and the reactive dye is selected from at least one of active black G, active red C-D and active orange C-3R. The one bath process dyeing process has the advantages of being stable in color and firm in color fixation.

Description

technical field [0001] The invention relates to a textile dyeing process, in particular to a one-bath dyeing process of polyester-cotton disperse dyes and reactive dyes. Background technique [0002] Polyester-cotton blended fabric is currently the main product of textile printing and dyeing factories. Polyester-cotton blended fabrics can not only maintain the advantages of high breaking strength, good elasticity, and good wrinkle resistance of polyester, but also have the characteristics of excellent hygroscopicity, air permeability, softness, and warmth retention of cotton fiber, so that the hygroscopicity and anti-wrinkle properties of polyester are improved. The shortcoming of poor ventilation has been well improved. Polyester is generally dyed with disperse dyes, while cotton fibers can be dyed with reactive dyes, direct dyes, and vat dyes. [0003] The traditional dyeing and finishing process of polyester-cotton blended fabrics at home and abroad is generally a dispe...

Claims

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Application Information

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IPC IPC(8): D06P1/38D06P1/16D06P1/44D06P1/673D06P1/48D06P3/872D06P5/06D06P5/08D06L1/16
Inventor 宣加杰徐锦单宝姚于红
Owner 杭州集美印染有限公司
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