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Full-cotton woven fabric bioenzyme continuous destarch ungumming-bathing pretreatment process

A biological enzyme and pre-treatment technology, applied in biochemical fiber treatment, fiber treatment, textiles and papermaking, etc., can solve the problems of affecting the hand feel of cotton fabrics, polluting the ecological environment, and damaging cotton fibers, etc., to achieve the protection of the ecological environment , low labor intensity and small fiber damage

Inactive Publication Date: 2004-09-15
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This treatment method has a high removal rate of cotton wax, reaching more than 70%, which affects the feel of cotton fabrics; in addition, due to the treatment under high temperature and strong alkali conditions, the damage to cotton fibers is also relatively large; more seriously, strong alkali Desizing and scouring wastewater has high chroma, strong alkalinity, pH value above 12, and COD value above 10,000ppm, which seriously pollutes the ecological environment and consumes a lot of energy such as water and electricity.

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

[0018] Example 1: Cotton combed poplin Specifications: 44"40×40 133×72

[0019] Process flow:

[0020] Singeing → water pretreatment → enzyme desizing and scouring → washing → bleaching → washing → tumble drying.

[0021] Process formula:

[0022] Water pretreatment: soak in cold water once, soak in hot water (95°C) twice.

[0023] Enzyme desizing and scouring: 0.5 g / L amylase, 0.4 g / L pectinase, 5 g / L penetrant, 10 g / L swelling agent, liquid carry rate=50%, steaming temperature T=95°C, Steaming time t=60 minutes, PH=6.5.

[0024] Bleach: H 2 o 2 (100%) 5.0 grams per liter, water glass 15 grams per liter, penetrant 10 grams per liter, liquid entrained rate=50%, steaming temperature T=100 ℃, steaming time t=45 minutes, PH=10- 11.

[0025] Water washing: four washes in hot water

[0026] After the above treatment, there is no residual size on the fabric, no residual cotton seed husks on the fabric surface, capillary effect 10.2 cm / 30 minutes, whiteness 85.12, strength: w...

Embodiment 2

[0027] Example 2: Cotton extra-wide semi-combed poplin Specifications: 99”40×40 110×90

[0028] Process flow:

[0029] Singed cloth → rolling enzyme stacking → track enzyme desizing and scouring → water washing → track bleaching → water washing → tumble drying.

[0030] Process formula:

[0031] Rolling enzyme stacking: amylase 3 g / L, pectinase 0.5 g / L, penetrant 10 g / L, swelling agent 10 g / L, rolling liquid temperature 60-70°C, liquid carrying rate=90%, normal temperature Stack for 120 minutes, PH=6.5

[0032] Caterpillar enzyme desizing and scouring: 3.6 g / L amylase, 0.6 g / L pectinase, 5 g / L penetrant, 10 g / L swelling agent, liquid carry rate=30%, steaming temperature T=70°C, Time t = 35 minutes, pH = 6.5.

[0033] Bleach: H 2 o 2 (100%) 8 grams per liter, water glass 15 grams per liter, penetrant 10 grams per liter, liquid entrainment rate=40%, steaming temperature T=100 ℃, time t=35 minutes, pH=10-11.

[0034] Water Xian: Four washes with hot water.

[0035] Effect...

Embodiment 3

[0037] Example 3: All-cotton carded poplin Specifications: 47"40×40 133×72

[0038] Process flow:

[0039] Singeing → water pretreatment → enzyme desizing and scouring → washing → bleaching → washing → tumble drying.

[0040] Process formula:

[0041] Water pretreatment: Soak in cold water once, soak in hot water twice.

[0042] Enzyme desizing and scouring: 3 g / L amylase, 0.4 g / L pectinase, 5 g / L wetting and penetrating agent, 10 g / L swelling agent, liquid carrying rate=70%, steaming temperature T=70°C , steaming time t=60 minutes, PH=6.5.

[0043] Bleach: H 2 o 2 (30%) 30 grams per liter, water glass 15 grams per liter, penetrant 5 grams per liter, liquid carrying rate=75%, steaming temperature T=100 ℃, steaming time t=50 minutes, PH=10- 11.

[0044] Water Xian: three washes with hot water and one wash with cold water.

[0045] Effect test

[0046] After the above treatment, there is no residual size on the woven fabric, no residual cotton seed hulls on the cloth su...

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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PUM

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Abstract

The invention is a kind of fore process of biology enzyme continuous desizing, refinery-washing method for cotton textile, which belongs to textile front process field in printing and dyeing industry. It solves the problem that the water and electricity are consumed in a large amount, and goes against with the environment protection, the process reaches the best process effect. The process carries on boiled water heat process to cotton textile, and then through impregnating biology enzyme liquid, steamed biology enzyme desizing, refinery process water cleaning, then through impregnating hydrogen dioxide bleaching liquid, steaming bleaching process, water cleaning etc. processes. By using the process, the fore process effect is good, the desizing effect is good, the white rate is high, and it has good humidification, small harm to fiber, high quality, soft, the method process the colourity, pH value, COD value to degree far lower than the current process, it reduces the bear of waste water processing, it is advantage to protect the environment, the efficiency is high, the low labour intensity, energy saving, and water saving.

Description

technical field [0001] The invention relates to a biological enzyme continuous desizing and scouring one-bath pretreatment process for cotton woven fabrics, belonging to the technical field of cotton woven fabric pretreatment processes 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. In addition, due to the needs of the weaving process, the warp yarn needs to be sized, which brings additional impurities on the fabric-sizing agent, such as PVA and starch slurry. 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 ca...

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): D06M16/00
Inventor 范雪荣万清余王强王平高卫东
Owner JIANGNAN UNIV
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