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Dyeing processing technology of polylactic acid fiber shuttle looms cloth

A polylactic acid fiber and processing technology, which is applied in dyeing, textiles and papermaking, can solve the problems of unfavorable environmental protection, difficult practical operation, high energy consumption, etc., and achieve the effects of energy saving, pollution reduction, and low energy consumption

Inactive Publication Date: 2009-06-17
CHINA TEXTILE ACAD JIANGNAN BRANCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although CN101082154 relates to the dyeing process of PLA fiber / cotton blended weaving, it is not conducive to environmental protection because the dyeing bath involved is relatively large, and the temperature rise is controlled at 0.5°C / min, which is difficult to achieve in actual factory operation, and there is still energy consumption Large, difficult to operate and other issues

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

[0017] Embodiment 1: pure PLA fiber is dyed bright yellow.

[0018] After putting the woven fabric in the overflow dyeing machine at room temperature, add the prepared disperse bright yellow XF 0.5% (o.w.f.), penetrant JFC 1g / L, dispersant NNO 1g / L, and adjust the pH to 5.5 with glacial acetic acid. The bath ratio is 1:10, the temperature is raised to 70°C, and the temperature is raised to 90°C at a rate of 1°C / min. After 10 minutes of heat preservation, the temperature is increased to 100°C at a rate of 1°C / min. After 30 minutes of heat preservation, it is cooled to room temperature. The dyed fabric has been tested, and the color fastness to soaping reaches grade 4, and the fastness to rubbing reaches grade 4.

Embodiment 2

[0019] Embodiment 2: Pure PLA fiber is dyed navy blue.

[0020] After putting the woven fabric in the overflow dyeing machine at room temperature, add the prepared disperse navy blue XF2% (o.w.f.), penetrating agent 1g / L, dispersant NNO1g / L, glacial acetic acid to adjust the pH to 5.5, and the liquor ratio to 1 : 15, heat up to 70°C, rise to 90°C at a heating rate of 1°C / min, keep warm for 10 minutes and continue to rise to 110°C at a heating rate of 1°C / min, keep warm for 40 minutes, cool to 60°C for soaping. The dyed fabric is tested, and the color fastness to soaping is 3-4 grades, and the rubbing fastness is 3-4 grades.

Embodiment 3

[0021] Embodiment 3: PLA fiber / cotton woven fabric is dyed yellow.

[0022] The first step, disperse dyeing: put the woven fabric in the overflow dyeing machine at room temperature, then add the prepared disperse yellow UN-SE2% (o.w.f.), penetrating agent 1g / L, dispersant NNO 1g / L , adjust the pH to 5.5 with glacial acetic acid, bath ratio 1:15, rapidly raise the temperature to 70°C, and raise the temperature to 90°C at a rate of 1°C / min, keep warm for 10 minutes and continue to rise to 110°C at a rate of 1°C / min, keep warm After 45 minutes, cool to 60°C for soaping, then drop to normal temperature and wash with water.

[0023] The second step, dyeing with reactive dyes: add reactive yellow X-RG1% (o.w.f.) from 40°C, bath ratio 1:25, after keeping warm for 30min, add sodium sulfate 30g / L, keep warm for 45min, then heat at 1-2°C / min heating rate to 60 ℃, add soda ash 10g / L, keep warm for 45min, then cool down to room temperature and wash with water. The dyed fabric is tested...

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 dyeing and processing technique for polylactic acid fiber woven fabric, belonging to the technical field of dyeing of textiles. Pure PLA fiber woven fabric or PLA fiber / cotton mixed woven fabric completing preprocessing and dyeing liquor are put into an overflow dyeing machine, temperature rises to 70 DEG C plus or minus 5 DEG C and then rises to 85-95 DEG C at a rate of 1-2 DEG C / min, the temperature is maintained for 5-10 minutes; if the fiber woven fabric is dyed in medium and light colors, then the temperature keeps rising to 95-105 DEG C at a rate of 1-2 DEG C / min, the temperature is maintained for 30-45min; if the fiber woven fabric is dyed in dark colors, the temperature rises to 110-120 DEG C at a rate of 1-2 DEG C / min, the temperature is maintained for 45-60min and then lowered to 60-70 DEG C for soaping; at the temperature of 40 DEG C plus or minus 5 DEG C, reactive dyes and sodium sulphate are continued to be added to PLA fiber / cotton mixed woven fabric, then the temperature is maintained, afterwards, calcined soda is added when the temperature rises to 60 DEG C at a rate of 1-2 DEG C / min, the temperature is lowered for washing after being maintained for 30 plus or minus 5min. The technique features reasonable design, simple and convenient operation and can effectively reduce dosage of addition agent and environmental pollution.

Description

technical field [0001] The invention relates to a dyeing process of polylactic acid fiber woven fabric, which belongs to the technical field of textile dyeing process. Background technique [0002] Polylactic acid fiber (polylactic acid, referred to as PLA) is corn, wheat and other starch-containing raw materials, which are fermented into lactic acid, and then polymerized and spun into fibers. It not only has excellent physical properties and wearability, but also can Biodegradable is a new type of environmentally friendly fiber that can be completely recycled naturally, and it is also the only synthetic fiber that does not rely on petroleum resources. [0003] PLA fiber has unique physical and chemical properties. Clothing fabrics made of it are soft to the touch, stable in shape, and have good curling and elasticity. However, PLA fibers are acid-resistant and alkali-resistant and have a low melting point, so PLA cannot be treated with strong alkali and the dyeing temperat...

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): D06P3/54D06P3/85D06P3/872
Inventor 庄小雄杨国荣姚登辉方虹天朱俊伟崔桂新
Owner CHINA TEXTILE ACAD JIANGNAN BRANCH
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