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Dyeing and finishing method of all-cotton plain fabric

A processing method, dyeing and finishing technology, applied in the direction of dyeing method, fabric surface trimming, biochemical fiber treatment, etc., can solve the problems of fading and discoloration of cotton dyed fabrics, and achieve the effect of good luster and bright color.

Active Publication Date: 2019-04-09
JIANGSU GOLDSUN TEXTILE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defect of discoloration or fading after repeated washing of traditional cotton dyed fabrics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Specifications: 105” / 80s*80s / 200*(96+96), cotton satin dyed, light pink.

[0021] The above-mentioned fabrics are sequentially subjected to singeing, enzyme desizing, scouring, bleaching, mercerizing, polishing, dyeing, soft setting, calendering and pre-shrinking.

[0022] 1. Singeing and enzymatic cold stacking: gas singeing, vehicle speed 110m / min, two fronts and two reverses, through burning, singeing level is 4, flaming enzyme extinguishing, stacking for 4-6 hours.

[0023] 2. Scouring: Combined cooking and bleaching machine, double-layer stacking. Process conditions: NaOH 50g / L; refining agent 12g / L; penetrant 6g / L; steaming 102°C*60min, speed 80m / min.

[0024] 3. Bleaching: Impregnating working liquid: H2O2 3g / L; pH about 9.5; penetrating agent 4g / L; chelating dispersant 4g / L; steaming: 100℃*40min, speed 80m / min.

[0025] 4. Mercerizing: Alkali dipping time is 75s, alkali concentration is 230g / L, hot alkali washing time is 50s, hot alkali concentration is 60g / L,...

Embodiment 2

[0031] Specifications: 105” / 100s / 2*100s / 2 / 190*90, cotton satin dyed, medium brown color.

[0032] The above-mentioned fabrics are sequentially subjected to singeing, enzyme desizing, scouring, bleaching, mercerizing, polishing, dyeing, soft setting, calendering and pre-shrinking.

[0033] 1. Singeing and enzymatic cold stacking: gas singeing, vehicle speed 110m / min, two fronts and two reverses, through burning, singeing level is 4, flaming enzyme extinguishing, stacking for 4-6 hours.

[0034] 2. Scouring: Combined cooking and bleaching machine is used, with double-layer stacking. Process conditions: NaOH 50g / L; refining agent 12g / L; penetrant 6g / L; steaming 102℃*60min, speed 80m / min.

[0035]3. Bleaching: Impregnating working liquid: H2O2 3g / L; pH about 9.5; penetrating agent 4g / L; chelating dispersant 4g / L; steaming: 100℃*40min, speed 80m / min.

[0036] 4. Mercerizing: Alkali dipping time is 75s, alkali concentration is 240g / L, hot alkali washing time is 50s, hot alkali con...

Embodiment 3

[0042] Specifications: 105” / 120s / 2*120s / 2 / 200*100, cotton satin dyed, deep purple.

[0043] The above-mentioned fabrics are sequentially subjected to singeing, enzyme desizing, scouring, bleaching, mercerizing, polishing, dyeing, soft setting, calendering and pre-shrinking.

[0044] 1. Singeing and enzymatic cold stacking: gas singeing, vehicle speed 110m / min, two fronts and two reverses, through burning, singeing level is 4, flaming enzyme extinguishing, stacking for 4-6 hours.

[0045] 2. Scouring: Combined cooking and bleaching machine, double-layer stacking. Process conditions: NaOH 50g / L; refining agent 12g / L; penetrant 6g / L; steaming 102°C*60min, speed 80m / min.

[0046] 3. Bleaching: Impregnating working liquid: H2O2 3g / L; pH about 9.5; penetrating agent 4g / L; chelating dispersant 4g / L; steaming: 100℃*40min, speed 80m / min.

[0047] 4. Mercerizing: Alkali soaking time is 65s, alkali concentration is 220g / L, hot alkali washing time is 40s, hot alkali concentration is 65g...

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Abstract

The invention discloses a dyeing and finishing method of all-cotton plain fabric. The dyeing and finishing method comprises three processes: pretreatment, dyeing and after-finishing in sequence, wherein the pretreatment process comprises the following steps: singeing of gray fabric, enzyme pad steaming and desizing, boiling off, bleaching, mercerizing and polishing; the after-finishing process comprises the following steps: soft shaping and calendering; in the dyeing process, active dye with more than two active groups is adopted for dyeing, a parent structure of the active dye is anthraquinone, azobenzene, formazan or phthalocyanine; each of the active groups is selected from one or more of monochlorotriazine, monofluorintriazine, vinyl sulfone or difluoro monochloropyridine. The all-cotton plain fabric produced by adopting the dyeing and finishing method is bright in color and has better gloss; the color has no obvious change after the fabric is washed repeatedly.

Description

technical field [0001] The invention belongs to the technical field of textile fabric processing, and in particular relates to a dyeing and finishing method for pure cotton plain fabric which is as new after washing for a long time. Background technique [0002] Color fastness refers to the resistance to various external environments during textile dyeing, processing, storage, transportation and application, usually including water resistance, friction resistance, light resistance, perspiration resistance, chlorine resistance, simulated household washing and oxidation resistance. Mainly through testing, the color fastness level of the degree of fading, discoloration and staining of dyed objects is evaluated. Along with the continuous improvement of people's quality of life, household machine washing is very popular. There are many types of detergents such as washing powder or laundry detergent on the market, with different pH values ​​and various oxidants; the water quality...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/38D06P3/66D06P5/10D06M16/00D06C13/00D06C15/00D06B7/08D06L4/13D06M101/06
CPCD06B7/08D06C13/00D06C15/00D06M16/003D06M2101/06D06P1/38D06P3/66D06P5/10D06L4/13
Inventor 胡青青陈红霞沈玲袁洪胜
Owner JIANGSU GOLDSUN TEXTILE SCI & TECH
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