Method for pretreating cotton fabric at low temperature by using biological enzymes and hydrogen peroxide through one bath process

A cotton-type fabric and low-temperature technology, which is applied in the field of textile printing and dyeing pretreatment, can solve the problems of unsuitable joint use, poor water solubility, and limited application, and achieve the effects of reducing energy consumption, reducing sewage discharge, and reducing the time required for heating

Active Publication Date: 2013-04-17
QINGDAO FRONTIERCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tetraacetylethylenediamine is widely used in household and industrial detergents, but its poor water solubility limits its application in the textile industry
Therefore, it is not suitable to be used in combination with biological enzymes under near-neutral solution conditions

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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  • Method for pretreating cotton fabric at low temperature by using biological enzymes and hydrogen peroxide through one bath process
  • Method for pretreating cotton fabric at low temperature by using biological enzymes and hydrogen peroxide through one bath process
  • Method for pretreating cotton fabric at low temperature by using biological enzymes and hydrogen peroxide through one bath process

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026] Fabric: pure cotton plain weave gray cloth (122g / m 2 )

[0027] Prescription: 2g / L wetting agent (Sutafon D)

[0028] 0.53g / L chelating agent (Marquest PB)

[0029] 2.88g / L acid-base regulator (NaHCO 3 )

[0030] 0.32g / L desizing enzyme (Aquazym Prime12000L)

[0031] 2.86g / L H 2 o 2 (w / w35%)

[0032] 8.3g / L N-[4-(trialkylammoniummethylene)benzoyl]lactam chloride

[0033] Method: one bath two steps (see figure 1 b)

[0034] Bath ratio: 15:1

[0035] Temperature: 50°C

[0036] Time: 30 minutes for the first step, 60 minutes for the second step

[0037] The inventive method compares with conventional processing method:

[0038]

example 2

[0040] Fabric: pure cotton knitted fabric (137g / m 2 )

[0041] Prescription: 1g / L wetting agent (Triton X-100)

[0042] 1g / L chelating agent (Prestogen N-D)

[0043] 3.1 Acid-base regulator (NaHCO 3 )

[0044] 2.0g / L pectinase

[0045] 3.44g / L H 2 o 2 (w / w35%)

[0046] 10g / L N-[4-(trialkylammoniummethylene)benzoyl]lactam chloride

[0047] Method: one bath, one step (see figure 1 a)

[0048] Bath ratio: 10:1

[0049] Temperature: 50°C

[0050] Time: 60 minutes

[0051] The inventive method compares with conventional processing method:

[0052]

example 3

[0054] Fabric: pure cotton plain weave gray cloth (122g / m 2 )

[0055] Prescription: 1g / L wetting agent (Triton X-100)

[0056] 1g / L chelating agent (Prestogen N-D)

[0057] 0.1M acid-base regulator (phosphate)

[0058] 3.23g / L desizing enzyme (Aquazym Prime12000L)

[0059] 3.0g / L pectinase

[0060] 2.81g / L H 2 o 2 (w / w35%)

[0061] 8.15g / L N-[4-(trialkylammoniummethylene)benzoyl]lactam chloride

[0062] Method: one step at a time

[0063] Bath ratio: 20:1

[0064] Temperature: 50°C

[0065] Time: 50 minutes

[0066] The inventive method compares with conventional processing method:

[0067]

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 relates to a method for pretreating a cotton fabric at low temperature by using biological enzymes and hydrogen peroxide through one bath process. The method adopts N-[4-(trialkyl ammonium methylene)benzoyl] lactam chloride activator, hydrogen peroxide, a desizing enzyme, a scouring enzyme and supporting aids and has the characteristics of low temperature of 25-60 DEG C in the whole course, nearly neutral reaction condition (with pH value being 6.5-7.5) and low fiber damage. The cotton fabric treated by the adopting the method has no residual sizing agent and cottonseed hull, is equivalent to the cotton fabric treated by adopting the conventional method in whiteness and moisture absorption and is superior to the cotton fabric treated by adopting the conventional method in strength and handfeel. The process of the method is shortened greatly, the energy is saved, and the sewage treatment burden is lightened.

Description

technical field [0001] The invention discloses an enzyme oxygen one-bath cotton fabric pretreatment method at low temperature, which is suitable for the cotton fabric pretreatment and belongs to the field of textile printing and dyeing pretreatment. technical background [0002] Desizing, scouring, and bleaching are important pre-treatment processes for textile wet processing, and are crucial to the subsequent dyeing and finishing of textiles. The conventional pretreatment process often requires long-term treatment of fabrics under high temperature and strong alkali conditions, which not only consumes huge energy, but also causes serious fiber damage, and also increases the burden of wastewater treatment. At present, rising energy costs and higher requirements for environmental improvement have made the printing and dyeing industry face a very severe situation. In order to enhance the competitiveness of enterprises and increase the benefits of enterprises, printing and dyei...

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): D06M16/00D06L3/02D06M101/06D06L4/12D06L4/13
Inventor 许长海杜金梅龙晓霞付少海
Owner QINGDAO FRONTIERCHEM
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