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Dyeing and finishing process of polylactic acid fiber shuttle looms fabric

A polylactic acid fiber and processing technology, which is applied in the fields of dyeing, textile pretreatment, and post-finishing, can solve the problems of high energy consumption, use of drugs, and cumbersomeness, so as to save energy, ensure dyeing fastness, and prevent loss of strength. Effect

Inactive Publication Date: 2009-06-03
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 relatively complete dyeing and finishing process of PLA fiber / cotton blended weaving, there are problems such as complex process, large energy consumption, and serious environmental pollution
For example, the pretreatment of this patent involves desizing, boiling, bleaching, mercerizing and other processes, while PLA itself has good dimensional stability and gloss, and PLA and cotton blending do not require mercerizing treatment; at the same time, the pretreatment process of this patent is relatively cumbersome , it takes multiple steps to complete, and more medicines are used, which increases the product cost and the pollution to the environment
In addition, the dyeing process of the patent also has problems such as large energy consumption and inconvenient operation, and the patent does not explain the finishing process

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

[0024] Embodiment 1: pure PLA fiber woven fabric is dyed yellow.

[0025] 1. Pretreatment: After adding pure PLA fiber woven fabric at room temperature in the overflow dyeing machine, add sodium carbonate 2g / L, penetrant JFC 1g / L, hydrogen peroxide 1g / L, hydrogen peroxide stabilizer 1g / L; 90°C for 30 minutes.

[0026] 2. Dyeing: After putting the woven fabric in the overflow dyeing machine at room temperature, add the prepared disperse yellow XF 0.5% (o.w.f.), penetrating agent JFC 1g / L, dispersant NNO 1g / L, glacial acetic acid to adjust When the pH reaches 5.5, the bath ratio is 1:10, rapidly raise the temperature to 70°C, and then raise the temperature to 90°C at a rate of 1°C / min. room temperature.

[0027] 3. Finishing: After dyeing and dehydration, add moisture absorption and perspiration additive PP-280 1% (o.w.f.), silicone oil softener AYL-93 2% (o.w.f.), antistatic agent YH-204 0.5% (o.w.f. ), the setting temperature is 125°C, and the setting speed is maintained at...

Embodiment 2

[0029] Embodiment 2: PLA fiber / cotton blended woven fabric is dyed blue.

[0030] 1. Pretreatment: After adding PLA fiber / cotton woven fabric at room temperature in the overflow dyeing machine, add sodium carbonate 5g / L, penetrant JFC1g / L, hydrogen peroxide 2g / L, hydrogen peroxide stabilizer 2g / L; Treat at 90°C for 30 minutes; wash with water and heat up to 55°C, add acetic acid to adjust the pH to 5.5, then put CTA-CL30 polishing enzyme 2% (o.w.f.) and enzymatic agent CTC-ST09 1g / L, and treat for 30 minutes.

[0031]2. Dyeing: Dyeing PLA with disperse dyes: After putting the woven fabric in the overflow dyeing machine at room temperature, add the prepared disperse blue UN-SE2% (o.w.f.), penetrating agent 1g / L, and dispersing agent NNO1.2g / L, adjust the pH to 5.5 with glacial acetic acid, bath ratio 1:15, rapidly raise the temperature to 70°C, raise the temperature to 90°C at a rate of 1°C / min, keep warm for 10 minutes, and continue to increase the temperature at a rate of 1°...

Embodiment 3

[0035] Embodiment 3: PLA fiber / cotton blended woven fabric is dyed bright yellow.

[0036] 1. Pretreatment: After adding PLA fiber / cotton woven fabric at room temperature in the overflow dyeing machine, add sodium bicarbonate 5g / L, penetrant JFC1g / L, hydrogen peroxide 3.5g / L, hydrogen peroxide stabilizer 2g / L L; heat up to 90°C, treat for 30min; heat up to 55°C after washing, add acetic acid to adjust the pH value to 5.5, then put CTA-CL30 polishing enzyme 1% (o.w.f.), enzymatic agent CTC-ST09 1g / L, treat for 30min .

[0037] 2. Dyeing: Dyeing PLA with disperse dyes: configure the dye solution according to the following parameters: after putting the woven fabric in the overflow dyeing machine at room temperature, add the prepared disperse bright yellow XF 0.5% (o.wf.), infiltration 1g / L dispersant, 0.5g / L dispersant NNO, adjust pH to 5.5 with glacial acetic acid, bath ratio 1:10, rapidly raise the temperature to 70°C, and raise the temperature to 90°C at a rate of 1°C / min, ke...

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 discloses a dyeing and finishing process of polylactic acid fiber shuttle looms fabric, belonging to the pre-processing, dying and after-finishing process technical field of textiles. The process is carried out according to the following process steps: A. pre-processing procedure: shuttle looms grey fabric is added in an overflow dyeing machine, and then 2-8g / L sodium carbonate or 4-15g / L sodium bicarbonate, 1-2g / L penetrating agent JFC, 1-5.5g / L hydrogen peroxide and 1-2g / L hydrogen peroxide stabilizer are successively added, the temperature is risen to 90 DEG C and the processing is carried out for 30min; B. dyeing procedure: prepared disperse dye and additives are successively added, the temperature is risen to 95-105 DEG C or 110-120 DEG C at the rising rate of 1-2 DEG C / min, and the cooling is carried out after the thermal insulation; C. after-finishing procedure: 7-15g / L hydrophilic amino silicone fabric finishing agent and antistatic agent are added for the low temperature setting, and the setting temperature is 100-130 DEG C. The dyeing and finishing process of the polylactic acid fiber shuttle looms fabric has the advantages of reasonable process design and convenient operation and can reduce the using amount of the additives and the environmental pollution effectively.

Description

technical field [0001] The invention relates to a dyeing and finishing process of polylactic acid fiber woven fabric, which belongs to the technical field of textile pretreatment, dyeing and post-finishing processes. 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 t...

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): D06L1/14D06L3/02D06P3/54D06P3/85D06M15/643D06M13/50D06M16/00C12S11/00D06P3/872D06M101/32D06M101/06
Inventor 庄小雄徐憬方虹天杨国荣姚登辉崔桂新
Owner CHINA TEXTILE ACAD JIANGNAN BRANCH
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