Method for promoting pigment dyeing by using cellulase

A cellulase and paint dyeing technology, applied in the field of textile printing and dyeing, can solve problems such as environmental pollution, increased dyeing process, and damage to the natural and excellent properties of cotton fabrics

Inactive Publication Date: 2012-06-20
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method of cationic modification to promote paint dyeing not only increases the dyeing process, but also damages the natural and excellent characteristics of cotton fabrics, and causes some pollution to the environment.

Method used

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  • Method for promoting pigment dyeing by using cellulase

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Use the following process to light and thin pure cotton fabric (100g / m 2 ) for paint dyeing:

[0013] (1) Utilize cellulase to process fabric in dyeing machine, technological condition is as follows: the dosage of cellulase is 1% owf, temperature 55 ℃, pH5.2, time 30min, bath ratio 1: 20; Take it out and dehydrate it with a centrifuge until the liquid-carrying rate is 90%, and then dry it in an oven at 100°C;

[0014] (2) Dyeing the dried fabric, the process conditions are as follows: anionic paint red 3% owf, temperature 55°C, pH 7.0, time 70min, bath ratio 1: 10; color fixing treatment after dyeing, process The conditions are as follows: anionic binder 10g / L, temperature 80°C, time 20min; finally, the fabric is centrifugally dehydrated to 90% liquid-carrying rate, dried at 100°C, and baked at 150°C for 5min.

[0015] Test the color depth K / S value and color fastness of the above-mentioned paint dyed fabrics, the results are shown in Table 1.

Embodiment 2

[0017] Use the following process to medium-thick pure cotton fabric (180g / m 2 ) for paint dyeing:

[0018] (1) Use cellulase to treat the fabric in the dyeing machine, the process conditions are as follows: cellulase 3% owf, temperature 55 ° C, pH 5.4, time 40min, bath ratio 1: 20; after completion, the fabric is taken out and used The centrifuge dehydrates to 90% liquid, and then dries the fabric in an oven at 100°C;

[0019] (2) The fabric after drying is carried out paint dyeing, and process condition is as follows: anionic paint yellow 8%, temperature 55 ℃, pH7.0, time 80min, bath ratio 1: 10; Carry out fixation treatment after dyeing, process condition As follows: anionic binder 30g / L, temperature 80°C, time 30min; finally, the fabric is centrifuged and dehydrated to a liquid-carrying rate of 90%, dried at 100°C, and baked at 150°C for 8 minutes.

[0020] Test the color depth K / S value and color fastness of the above-mentioned paint dyed fabrics, the results are shown i...

Embodiment 3

[0022] Adopt the following process to thick heavy cotton fabric (250g / m 2 ) for paint dyeing:

[0023] (1) Use cellulase to treat the fabric in the dyeing machine, the process conditions are as follows: cellulase 5% owf, temperature 55 ° C, pH 5.2, time 40min, bath ratio 1: 20; after completion, the fabric is taken out and used The centrifuge dehydrates to 95% liquid, and then dries the fabric in an oven at 100°C;

[0024] (2) The fabric after drying is carried out paint dyeing, and technological condition is as follows: anionic paint blue 15%owf, temperature 55 ℃, pH7.0, time 80min, bath ratio 1: 10; Carry out fixation treatment after dyeing, process The conditions are as follows: anionic binder 50g / L, temperature 80°C, time 30min; finally, the fabric is centrifugally dehydrated to 90% liquid, dried at 100°C, and baked at 150°C for 10min.

[0025] Test the color depth K / S value and color fastness of the above-mentioned paint dyed fabrics, the results are shown in Table 1. ...

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Abstract

The invention relates to a method for promoting pigment dyeing by using cellulase, belonging to the technical field of textile printing and dyeing. The method comprises the following steps of: (1) processing the cotton fabric with cellulase so that the cellulase is uniformly adsorbed on the cotton fabric; and taking out the fabric, rapidly centrifugally dewatering and drying the fabric; and (2) prompting the pigment dyeing by virtue of the cellulase adsorbed on the surface of the fabric; directly immersing the fabric in an anionic pigment dyeing solution; stirring and dyeing; after the dyeingis finished, adding an anionic adhesive for color fixation; and finally, taking out the fabric and dewatering, drying and baking the fabric. According to the invention, affinity of the anionic pigment with the cotton fabric is enhanced by using the cellulase; and the color depth of the fabric dyed with pigment can be improved without performing cationization pretreatment on the cotton fabric and environmental influence is little.

Description

technical field [0001] The invention relates to a paint dyeing method, in particular to a method for promoting paint dyeing by using cellulase, and belongs to the technical field of textile printing and dyeing. Background technique [0002] With the development of dyeing and finishing technology, cotton fabric dyeing includes not only dyeing, but also paint dyeing. Dyeing cotton fabric with paint has the advantages of less environmental pollution, simple process, convenient color matching, energy saving and water saving, etc., and has been widely used in the printing and dyeing industry. [0003] At present, anionic coatings are commonly used in the printing and dyeing industry. Anionic coatings have no affinity for cotton fibers. Therefore, they cannot spontaneously transfer to the fiber surface when dyed by exhaust dyeing, resulting in the inability to dye cotton fabrics to a certain depth. In order to solve this problem, cationic modifiers containing reactive groups can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/60D06P5/00D06M16/00C12S11/00D06M101/06
Inventor 郝龙云黄林军王蕊刘敬权
Owner QINGDAO UNIV
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