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Process for pretreating pure cotton fabric

A pure cotton fabric and pre-treatment technology, applied in the processing of textile materials, continuous processing of textile materials, fiber processing, etc. Enhanced ability, fluffy and soft hand feel, and uniform hair effect

Active Publication Date: 2011-09-21
ZHEJIANG HAIHONG DYEING PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of printing and dyeing technology, the traditional pretreatment process uses alkali stacking + boiling and bleaching process, that is, most of them are completed by high temperature and high concentration caustic soda. Destroying the cellulose component of the fabric, making the fabric feel rough and damaged; in addition, due to the addition of high temperature and high concentration caustic soda, its wastewater treatment is also a major problem

Method used

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  • Process for pretreating pure cotton fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Fabric selection in this example: 36.9tex+36.9rex / 59tex+59tex 425 threads / 10cm×205 threads / 10cm 160cm pure cotton canvas, using enzyme stacking process, the main process is seam turning→shaking code→enzyme stacking→mercerizing, in which turning The sewing process refers to unpacking and sewing, so that the cloth to be dyed is continuously put on the car; then it is shaken, and then the enzyme stacking process, scouring enzyme 9g.L -1 , Triple A additive 4g.L -1 , the temperature is 55°C, the excess rolling rate is 100%, coiled and stacked for 20 hours. The last is the mercerizing process.

Embodiment 2

[0011] Fabric selection in this example: 36.9tex+36.9rex / 59tex+59tex 425 pieces / 10cm×205 pieces / 10cm 160cm pure cotton canvas, using enzyme stacking + alkaline oxygen cooking and bleaching process, the main process is seam turning→shaking code→enzyme stacking →scouring→bleaching→mercerizing, in which 9g.L of scouring enzyme is used in the enzyme stacking process -1 , Triple A additive 4g.L -1 , the temperature is 55°C, the excess rolling rate is 100%, coiled and stacked for 20 hours. NaOH 18~20g.L is used in the scouring process -1 , Triple A additive 6g.L -1 , the rolling rate is 100%, steamed at 100°C for 45 minutes, and washed with water at 90°C. Then carry out the bleaching process, using H 2 o 2 6~7g.L -1 , Triple A additive 3g.L -1 , the rolling ratio is 90%, steamed at 100°C for 40min, and washed with water at 90°C.

[0012] See Table 1 for the effects after the treatment of the above two embodiments.

[0013] Known from Table 1, the pure enzyme pile process tr...

Embodiment 3

[0015] The traditional process adopts alkali stacking + boiling and bleaching process, including seam turning→shaking→alkali stacking→scouring→bleaching→mercerizing, in which the alkali stacking uses NaOH 42±2g.L -1 , scouring agent 10g.L -1 , stabilizer 10g.L -1 , H 2 o 2 18~20g.L -1 , liquid rolling at room temperature, the rolling rate is 100%, coiling and stacking for 24 hours. NaOH28~30g.L is used in the scouring process -1 , scouring agent 6g.L -1 , the rolling ratio is 90%, steamed at 100°C for 60min, and washed with water at 90°C. Bleaching with H 2 o 2 1.6~1.8g.L -1 , scouring agent 2g.L -1 , stabilizer 3g.L -1 , the rolling ratio is 90%, steamed at 100°C for 40min, and washed with water at 90°C.

[0016] By comparing the semi-finished product test indicators of the above three embodiments, the structure is shown in Table 2. From Table 2, it is known that the enzyme reactor process has higher desizing rate and gross effect and less weight loss than the tra...

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Abstract

The present invention discloses a process for pretreating pure cotton fabric. The process comprises the following steps of inverse sewing, size shaking, enzyme piling, scouring, bleaching and silken processing, wherein in the enzyme piling step, the 9g.L<-1> scouring enzyme and a 4g.L<-1> AAA auxiliary agent are used, the temperature is 55 DEG C, the rolling-piling time is 20h, and the pick-up is 100 percent; and in the scouring step, 18 to 20g.L<-1> NaOH, and 6g.L<-1> AAA auxiliary agent are used, the pick-up is 100 percent, the pure cotton fabric is steamed at a temperature of 100 DEG C for 45min, and then water-washed at a temperature of 90 DEG C. The process has the characteristics of no damage of cellulose components of plants, good handfeel and environmental protection.

Description

technical field [0001] The invention relates to a pure cotton fabric pretreatment process. Background technique [0002] At present, in the field of printing and dyeing technology, the traditional pretreatment process uses alkali stacking + boiling and bleaching process, that is, most of them are completed by high temperature and high concentration caustic soda. The cellulose component of the fabric is destroyed, making the fabric feel rough and damaged; in addition, due to the addition of high temperature and high concentration caustic soda, its wastewater treatment is also a major problem. Therefore, how to find a pretreatment process with good pretreatment effect and environmental protection performance to replace the existing traditional high-temperature, high-concentration caustic soda scouring process is a common problem in the industry. Contents of the invention [0003] In order to solve the above problems, the object of the present invention is to provide a pretr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06B21/00D06L3/02D06M16/00D06M11/38C12S11/00D06M101/06D06L4/12D06L4/13
Inventor 金根苗
Owner ZHEJIANG HAIHONG DYEING PRINTING
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