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Cotton fabric scouring and dyeing one-bath dyeing process

A cotton fabric, refining and dyeing technology, applied in the field of textile printing and dyeing, can solve the problems of unsatisfactory treatment effect of cotton-spandex fabric, difficulty in one-bath dyeing, and poor pre-treatment effect, etc., so as to avoid the problem of color flower, good surface, and improve fabric quality. The effect of capillary effect and whiteness

Active Publication Date: 2020-06-12
CHANGZHOU NEW WIDE KNITTING & DYEING
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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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  • Cotton fabric scouring and dyeing one-bath dyeing process

Examples

Experimental program
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Effect test

Embodiment 1）

[0029] The one-bath dyeing process of cotton fabric refining dyeing of the present embodiment has the following steps:

[0030] 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 1.5°C / min, and perform biological enzyme pretreatment for 60 minutes.

[0031] 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.

[0032] Among them, the 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.

[0033] ②Then directly add 80g / L Yuanming powder to the treatment solution in step ①, raise the temperatur...

Embodiment 2～ Embodiment 5）

[0038] The cotton fabric refining one-bath dyeing process of each embodiment is basically the same as that of Example 1, and the differences are shown in Table 1.

[0039] Table 1

[0040] 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 a cotton fabric scouring and dyeing one-bath dyeing process. The cotton fabric scouring and dyeing one-bath dyeing process comprises the following steps of: immersing the cotton fabric in a treatment solution containing compound biological enzymes, raising the temperature to 50 degrees centigrade to 58 degrees centigrade, and performing biological enzyme pretreatment for 30min to 60 min; then adding anhydrous sodium sulphate directly to the treatment solution, heating up to 75 degrees centigrade to 85 degrees centigrade and treating for 5 min to 10 min, and performinghyperthermia inactivation on the compound biological enzymes; then adding dissolved reactive dyestuff to the treatment solution at a uniform speed, wherein the feeding time is 20 min to 40 min, reducing the temperature to 60 degrees centigrade to 70 degrees centigrade, adding soda ash in 2 times to 3 times, wherein each adding time is 15 min to 30 min, and performing insulation dyeing for 40 min to 60 min after the adding is finished; and draining solution, performing water washing, adjusting acid, drain solution and soaping after dyeing. By using the cotton fabric scouring and dyeing one-bathdyeing process, not only the whiteness and capillary effect are higher, the fiber damage is less, no color flower is on the cloth, but also the level dyeing is better.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, and in particular relates to a one-bath dyeing process for refining and dyeing cotton fabrics. 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 a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/46D06P1/38D06P1/44D06P3/66D06P3/84
CPCD06P1/46D06P1/38D06P1/445D06P3/66D06P3/8219D06P3/8228
Inventor 马方方赵航王存山左凯杰吴金玲陶家杰黄庄芳容
Owner CHANGZHOU NEW WIDE KNITTING & DYEING
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