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Enzyme dyeing one-bath dyeing process for cotton fabric

A cotton fabric and process technology, applied in the field of textile printing and dyeing, can solve the problems of unsatisfactory treatment effect of cotton ammonia fabric, difficult to achieve one-bath dyeing, poor pretreatment effect, etc., to avoid the problem of color pattern, good surface and high production efficiency Effect

Active Publication Date: 2020-05-19
CHANGZHOU NEW WIDE KNITTING & DYEING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The advantage of this process is: the damage to cotton fibers is usually less, and it is more friendly to the environment; the disadvantage is: the pretreatment effect is not as good as the aforementioned traditional process, and most of them are for cotton fabrics and a few for cotton-polyester fabrics, while For cotton-spandex fabrics, because spandex uses a large amount of silicone oil surfactants in the spinning and weaving process, the existing biological enzyme pretreatment methods are even less effective for cotton-spandex fabrics.
[0008] In addition, the vast majority of cotton fabrics need to be drained before dyeing after pretreatment, and it is difficult to achieve one-bath dyeing, that is, there will be color spots on the fabric surface after one-bath dyeing

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Enzyme dyeing one-bath dyeing process for cotton fabric
  • Enzyme dyeing one-bath dyeing process for cotton fabric

Examples

Experimental program
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Effect test

Embodiment 1）

[0028] The one-bath dyeing process of cotton fabric enzyme dyeing of the present embodiment has the following steps:

[0029] ① Immerse the cotton fabric [in this example, 95% cotton + 5% spandex interwoven fabric] into the treatment solution, raise the temperature to 55°C at a rate of 2°C / min, and perform biological enzyme pretreatment for 50 minutes.

[0030] The treatment solution of this embodiment contains 1.0g / L alkaline pectin lyase, 0.35g / L neutral cellulase, 0.1g / L enriched endonuclease, 0.05g / L laccase, 0.02g / L Aqueous solution of surfactant CLD-H, 1.0g / L spandex refining degreasing agent ACR, 0.5g / L penetrating agent JFC.

[0031] Among them, the special surfactant CLD-H comes from Xi'an Chulongda Chemical Co., Ltd., the spandex refining degreasing agent ACR comes from Changzhou Xinanda Company, and the penetrant JFC comes from Shanghai Fengrui Chemical Co., Ltd.

[0032] ② Then directly add 70g / L sodium bicarbonate and 20g / L soda ash to the treatment liquid in ste...

Embodiment 2～ Embodiment 5）

[0037] The cotton fabric enzyme dyeing one-bath dyeing process of each embodiment is basically the same as that of Example 1, and the differences are shown in Table 1.

[0038] Table 1

[0039] Example 1 Example 2 Example 3 Example 4 Example 5 cotton fabric 95% cotton + 5% spandex interwoven fabric 65% cotton + 35% polyester blended fabric 100% cotton fabric 95% cotton + 5% spandex interwoven fabric 95% cotton + 5% spandex interwoven fabric alkaline pectin lyase 1.0g / L 1.0g / L 1.0g / L 1.0g / L 1.0g / L neutral cellulase 0.35g / L 0.35g / L 0.35g / L 0.25g / L 0.40g / L Enriched endonuclease 0.1g / L 0.1g / L 0.1g / L 0.15g / L 0.08g / L Laccase 0.05g / L 0.05g / L 0.05g / L 0.1g / L 0.02g / L Surfactant CLD-H 0.02g / L 0.02g / L 0.02g / L 0.02g / L 0.02g / L Spandex Refining Degreaser ACR 1.0g / L / / 1.1g / L 0.9g / L Penetrant JFC 0.5g / L 0.5g / L 0.5g / L 0.4g / L 0.6g / L

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Abstract

The invention discloses an enzyme dyeing one-bath dyeing process for cotton fabric. The enzyme dyeing one-bath dyeing process comprises the following steps of immersing the cotton fabric into a treating fluid containing a compound biological enzyme, heating to 50-58 DEG C, and carrying out biological enzyme pretreatment for 30-60 minutes; then directly adding anhydrous sodium sulphate and sodium carbonate into the treating fluid, treating for 5-15 minutes, and inactivating the compound biological enzyme; then adding a chemically-treated reactive dye into the treating fluid at a constant speed,wherein the feeding time is 20-40 minutes, heating to 60-70 DEG C after the feeding is completed, and carrying out heat-preservation dyeing for 40-60 minutes; and after the dyeing is completed, discharging the fluid, carrying out washing with water, regulating the acidity, discharging the fluid, and carrying out soaping. The enzyme dyeing one-bath dyeing process for the cotton fabric disclosed bythe invention is relatively high in whiteness and capillary effect, relatively small in fiber damage, free of dyeing defect on the cloth surface, relatively short in process flow and relatively highin production efficiency.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, and in particular relates to a cotton fabric enzyme dyeing one-bath dyeing process. Background technique [0002] Cotton is a natural cellulose fiber, its main component is cellulose, but there will be impurities such as pectin, waxy substances, ash, natural pigments and other impurities during the growth process, the existence of these impurities will seriously affect the uptake of dyes during the dyeing process. Therefore, it needs to be removed through pre-treatment processes such as scouring and bleaching before dyeing. [0003] At present, there are two main pretreatment processes for cotton fabrics: [0004] (1) The traditional pretreatment process, that is, the use of a large amount of caustic soda, surfactants, hydrogen peroxide and other chemical substances for scouring and bleaching. [0005] The advantages of this process are: good pretreatment effect and stable q...

Claims

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Application Information

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IPC IPC(8): D06P1/38D06P1/00D06P1/44D06P1/673D06P3/66D06P3/85
CPCD06P1/38D06P1/0032D06P1/445D06P1/6735D06P3/66D06P3/8219D06P3/8228
Inventor 左凯杰王兴隆何瑾馨董霞王碧华王存山黄庄芳容
Owner CHANGZHOU NEW WIDE KNITTING & DYEING
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