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Pre-treatment process of cotton or cotton/polyester fabric before intermittent dipping of bioenzyme

A technology of cotton knitted fabrics and processing technology, which is applied in the fields of biochemical fiber processing, fiber processing, textiles and papermaking, etc. It can solve the problems of poor processing effect, and achieve the effects of protecting the ecological environment, reducing burdens, and high quality

Inactive Publication Date: 2003-05-14
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (1) The technical problem to be solved is a pretreatment process of oxidative impregnation of cotton or polyester / cotton knitted fabrics with biological enzyme impregnation intermittent method, which needs to solve the traditional process of scouring first and then bleaching used in the pretreatment process of knitted fabrics. Technical problems with poor results, to achieve the purpose of optimizing the treatment effect

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: 2000 g of cotton wool knitted cloth.

[0020] Hydrogen peroxide pretreatment: 30% hydrogen peroxide 5g / L, sodium silicate 4g / L, non-ionic or anionic wetting and penetrating agent 0-2g / L, temperature 95°C, pH 11-12, bath ratio 1:20, treatment for 90min .

[0021] Biological enzyme treatment: 40,000mL of biological enzyme treatment solution, including 0.1g / L alkaline pectinase, 0.3g / L neutral cellulase, 0-2g / L non-ionic or anionic wetting and penetrating agent, and the treatment temperature is 65°C , pH8.5, bath ratio 1:20, treatment time 90min. After treatment, heat up to 75-85°C for 10-20 minutes to inactivate enzymes, wash thoroughly with water, and dry or dry at room temperature.

[0022] After the above treatment, the capillary effect of the knitted fabric after drying at room temperature reaches 14.5cm / 30min, and the water drop absorption time is less than 1 second. After drying at 105℃, the capillary effect reaches 9.5cm / 30min, the water drop absor...

Embodiment 2

[0023] Embodiment 2: 2000 g of cotton wool knitted cloth.

[0024] Hydrogen peroxide pretreatment: 30% hydrogen peroxide 5g / L, sodium silicate 4g / L, temperature 95°C, pH 11-12, bath ratio 1:20, treatment for 90min.

[0025] Biological enzyme treatment: 40000mL of biological enzyme treatment solution, including 0g / L alkaline pectinase and 0.3g / L neutral cellulase, treatment temperature 65°C, pH 8.5, bath ratio 1:20, treatment time 90min. After treatment, heat up to 75-85°C for 10-20 minutes to inactivate enzymes, wash thoroughly with water, and dry or dry at room temperature.

[0026] After the above treatment, the capillary effect of the knitted fabric after drying at room temperature reaches 14.6cm / 30min, and the water drop absorption time is less than 1 second. After drying at 105℃, the capillary effect reaches 8.0cm / 30min, the water drop absorption time is less than 2 seconds, and the whiteness is above 80.

Embodiment 3

[0027] Embodiment 3: 2000 g of cotton wool knitted cloth.

[0028] Hydrogen peroxide pretreatment: 30% hydrogen peroxide 5g / L, sodium silicate 4g / L, polyoxyethylene type nonionic surfactant JFC 2g / L, temperature 95°C, pH 11-12, bath ratio 1:20, treatment for 90min.

[0029] Biological enzyme treatment: 40000mL biological enzyme treatment solution, including 0.1g / L alkaline pectinase, 1.5g / L neutral cellulase, 2g / L polyoxyethylene nonionic surfactant JFC, treatment temperature 65°C, pH8.5, liquor ratio 1:20, treatment time 90min. After treatment, heat up to 75-85°C for 10-20 minutes to inactivate enzymes, wash thoroughly with water, and dry or dry at room temperature.

[0030] After the above treatment, the capillary effect of the knitted fabric after drying at room temperature reaches 16.6cm / 30min, and the water drop absorption time is less than 1 second. After drying at 105℃, the capillary effect reaches 13.0cm / 30min, the water drop absorption time is less than 1 second, an...

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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Abstract

The present invention belongs to the field of pre-treatment technology in printing and dyeing industry and aims at optimizin the printing and dyeing effect. Cotton or Dacron-cotton fabric is first soaking treated with hydrogen proxide and water washed and then bioenzyme treated through soaking, enzyme deactivation and water washing to complete the pre-treatment of knitted fabric. The said processhas good pre-treatment effect, less damage to fabric, high quality of the treated fabric, soft hand feeling of the treated fabric and less pollution of effluent.

Description

technical field [0001] The invention relates to a pretreatment process of cotton or polyester / cotton knitted fabrics by oxidative impregnation with biological enzyme impregnation intermittent method, and belongs to the technical field of pretreatment processes of knitted fabrics in the printing and dyeing industry. Background technique [0002] Cotton fiber contains 0.4-1.2% pectin, 0.4-1.2% wax, 1.0-1.9% protein, 0.7-1.6% ash and other natural impurities or companions, these impurities mainly exist in the cotton fiber In the stratum corneum and primary cell wall. The existence of these impurities seriously affects the wettability of cotton fiber, makes cotton fiber hydrophobic, and affects the properties of cotton fiber such as dyeing and finishing. Therefore, the first step in the dyeing and finishing of cotton textile products is to carry out pretreatment to remove natural impurities on cotton fibers, improve the wetting and permeability of cotton fabrics, and create goo...

Claims

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06L4/12D06L4/13D06M16/00
Inventor 范雪荣高卫东万清余王强王平
Owner JIANGNAN UNIV
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