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Low-temperature and low-damage moderate preprocessing method of PVA carrier pure-cotton high count yarn

A low-damage, yarn-based technology, applied in fiber processing, biochemical fiber processing, textiles and papermaking, etc., can solve problems such as yarn sticking, and achieve the effect of avoiding sticking and reducing strong damage

Inactive Publication Date: 2011-01-19
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a low-temperature, low-damage and gentle pretreatment method for high-count PVA spinning pure cotton yarn. Dissolution of the PVA fiber in the thread causes the problem of adhesion between the yarns, and at the same time can effectively reduce the strength damage of the yarn

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

[0021] PVA accompanying spinning pure cotton high-count yarn (dimension: cotton=50:50, wt%, 1508) 2g. Pretreatment solution: high-efficiency penetrating agent DJ-13992g / L, liquor ratio 1:50, treatment temperature 40°C, treatment time 30min; after pretreatment, the high-count yarn is directly put into the pretreatment solution; pretreatment solution formula: special scouring agent BF -07w 2g / L, biological compound enzyme (mass ratio of alkaline pectinase and cellulase is 2:1) 2g / L, hydrogen peroxide 4g / L, activator (sodium perborate 50wt%) 2g / L, pH value Adjust to 9 with sodium hydroxide. After the yarn is put in, the temperature is raised from room temperature to 60°C, and the temperature is kept constant for 90 minutes, while stirring continuously. Then cool down, wash with water, dehydrate, and dry at 50°C.

[0022] After testing, the capillary effect of the high-count yarn after treatment is 13.3cm / 30min, the whiteness is 86, and the yarn strength is damaged by 6.9%.

Embodiment 2

[0024] 2 g of pure cotton high-count yarn (dimension: cotton=30:70, wt%, 300S) spun with PVA. Pretreatment solution: high-efficiency penetrating agent DJ-13992g / L, liquor ratio 1:50, treatment temperature 40°C, treatment time 30min; after pretreatment, the high-count yarn is directly put into the pretreatment solution; pretreatment solution formula: special scouring agent BF -07w 3g / L, biological compound enzyme (mass ratio of alkaline pectinase and cellulase is 5:1) 2g / L, hydrogen peroxide 4g / L, activator (sodium perborate 70wt%) 2g / L, pH value Adjust it to 9 with sodium hydroxide; after the yarn is put in, raise it from room temperature to 60°C, keep the temperature constant for 90 minutes, and keep stirring, then lower the temperature, wash with water, dehydrate, and dry at 50°C.

[0025] After testing, the capillary effect of the high-count yarn after treatment is 13.7cm / 30min, the whiteness is 89, and the yarn strength is damaged by 6.5%.

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 relates to a low-temperature and low-damage moderate preprocessing method of PVA carrier pure-cotton high count yarn, comprising the following steps: (1) yarn is preprocessed before processed, wherein the processing temperature of 20-80 DEG C, the processing temperature is 10-30 minutes, and conditioning fluid is 1-2g / L of Dj-13991; (2) at the room temperature, the specific scouring agent BF-07w of high count yarn, biological enzyme preparation, hydrogen peroxide and hydrogen peroxide activator (TAED / SPB) are successively added at the room temperature, and the pH value is adjusted to 7-9 by NaOH solution; (3) yarn is input, temperature rises to 40-80 DEG C which is kept for 20-90 minutes, the mixture is continuously stirred in the processing process, then temperature is lowered, and the obtained product is washed, dewatered and dried at the temperature of 50 DEG C. The invention effectively solves the adhesion problem between yarns which is caused by the dissolving of the PVA fibre in the carrier yarn caused by the traditional high-temperate refining bleaching, and simultaneously lowers the powerful damage of yarn.

Description

technical field [0001] The invention belongs to the field of pretreatment of high-count PVA pure cotton yarn, and particularly relates to a low-temperature, low-damage and gentle pretreatment method for PVA companion-spun pure cotton high-count yarn. Background technique [0002] The development of high-count yarn has become a difficult problem in the world's textile field due to the limitation of fiber raw materials, spinning equipment and technology. Blending water-soluble PVA fiber and cotton fiber into yarn, weaving into yarn-dyed fabric through pretreatment and dyeing, and dissolving and removing PVA fiber in the dyeing and finishing process is an effective way to realize the production of pure cotton high-count yarn-dyed fabric . [0003] After PVA co-spun yarn is withdrawn, the fiber gap and capillary space inside the yarn increase, and the hygroscopicity and air permeability of the fabric are significantly improved. After the fiber is removed, the twist of the yarn...

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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IPC IPC(8): D06M16/00C12S11/00D06L3/02D06M101/06D06M101/24D06L4/12D06L4/13
Inventor 何瑾馨徐斗峰黄长根姚金龙董霞唐文君
Owner DONGHUA UNIV
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