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Low-temperature bleaching method of cotton-wool blended yarn

A technology of blending yarn and cotton wool, which is applied in the field of low-temperature pretreatment of textiles. It can solve the problems of high price of tetraacetylethylenediamine or sodium nonanoylbenzenesulfonate, and achieve the effects of simple operation, high whiteness and small damage

Active Publication Date: 2015-05-20
NANTONG YUYANG YARN DYED FABRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But tetraacetylethylenediamine or sodium nonanoylbenzenesulfonate are expensive in this invention, and the bleaching temperature in the process still needs to be carried out at 80°C

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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  • Low-temperature bleaching method of cotton-wool blended yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) 48S cotton wool blended (85 / 15) yarn

[0028] (2) The composition of the pretreatment liquid is

[0029] Iron sulfate 0.2g / L,

[0030] Laccase 0.1g / L.

[0031] The pretreatment process is that the cotton-wool blended yarn is added to the pretreatment liquid at a liquor ratio of 1:8, treated at 40°C for 30 minutes, and fully washed with water.

[0032] (3) The bleaching solution comprises the following components in parts by weight:

[0033] 30% hydrogen peroxide 8g / L,

[0034] Acetamide 2g / L,

[0035] Scouring agent 2g / L,

[0036] Penetrant 1g / L,

[0037] Sodium carbonate 3g / L,

[0038] Stabilizer 1g / L.

[0039] The low-temperature scouring and bleaching process is as follows: add the pretreated cotton-wool blended yarn and bleaching solution to the dyeing vat at a liquor ratio of 1:10, bleach at 70°C for 50 minutes, take out the cotton-wool blended yarn, wash with water, and dry.

Embodiment 2

[0041] (1) 48S cotton wool blended (85 / 15) yarn

[0042] (2) The composition of the pretreatment liquid is

[0043] Iron sulfate 2g / L,

[0044] Laccase 1g / L.

[0045] The pretreatment process is that the cotton-wool blended yarn is added to the pretreatment liquid at a bath ratio of 1:8, treated at 40°C for 30 minutes, and fully washed with water.

[0046] (3) The bleaching solution comprises the following components in parts by weight:

[0047] 30% hydrogen peroxide 8g / L,

[0048] Acetamide 6g / L,

[0049] Scouring agent 2g / L,

[0050] Penetrant 1g / L,

[0051] Sodium carbonate 3g / L,

[0052] Stabilizer 1g / L.

[0053] The low-temperature scouring and bleaching process is as follows: add the pretreated cotton-wool blended yarn and bleaching solution to the dyeing vat at a liquor ratio of 1:10, bleach at 70°C for 50 minutes, take out the cotton-wool blended yarn, wash with water, and dry.

Embodiment 3

[0055] (1) 48S cotton wool blended (85 / 15) yarn

[0056] (2) The composition of the pretreatment liquid is

[0057] Iron sulfate 1g / L,

[0058] Laccase 0.5g / L.

[0059] The pretreatment process is that the cotton-wool blended yarn is added to the pretreatment liquid at a bath ratio of 1:8, treated at 40°C for 30 minutes, and fully washed with water.

[0060] (3) The bleaching solution comprises the following components in parts by weight:

[0061] 30% hydrogen peroxide 8g / L,

[0062] Acetamide 4g / L,

[0063] Scouring agent 2g / L,

[0064] Penetrant 1g / L,

[0065] Sodium carbonate 3g / L,

[0066] Stabilizer 1g / L.

[0067] The low-temperature scouring and bleaching process is as follows: add the pretreated cotton-wool blended yarn and bleaching solution to the dyeing vat at a liquor ratio of 1:10, bleach at 70°C for 50 minutes, take out the cotton-wool blended yarn, wash with water, and dry.

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 invention provides a low-temperature bleaching method of a cotton-wool blended yarn. The bleaching method comprises the following steps: firstly, carrying out pretreatment of ferric sulfate and laccase mixed liquid on the cotton-wool blended yarn; washing and then adding the cotton-wool blended yarn and a low-temperature bleaching liquid to a dyeing vessel; and carrying out heat preservation, taking out the cotton-wool blended yarn, washing with hot water and cold water and drying. According to the low-temperature bleaching method, the problems of excessive energy consumption in the bleaching process of the cotton-wool blended yarn and relatively large damages to wool under an alkaline condition are solved; the cotton-wool blended yarn is subjected to pretreatment by virtue of a compound treating liquid of ferric sulfate and laccase, and then is activated and bleached at low temperature; and the obtained cotton-wool blended yarn is high in whiteness, small in damages and simple to operate.

Description

technical field [0001] The invention relates to the field of low-temperature pretreatment of textiles, in particular to a low-temperature bleaching method for cotton-wool blended yarn. Background technique [0002] Cotton-wool blended yarn not only has the hygroscopicity and wearing comfort of cotton fabric, but also has the plump feel of wool and excellent resilience. It is a very high-quality new textile fabric. However, cotton fabric belongs to cellulose fiber, and wool belongs to protein fiber, and the chemical properties and morphological structure of the two are quite different. Therefore, for the pretreatment of cotton and wool yarn, the properties of the two fibers must be considered at the same time, and a milder bleaching method should be adopted to reduce the damage to the yarn caused by the pretreatment of textiles. [0003] After searching by the applicant, the application number is 201110085229.6 (published on September 28, 2011), which discloses a cotton / wool...

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): D06L3/02D06L3/00D06L3/16D06L4/12D06L4/13
Inventor 杨玉宝
Owner NANTONG YUYANG YARN DYED FABRIC