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Cold pad-batch whitening method for cotton fabric

A cotton fabric, cold pad stacking technology, applied in the field of textile printing and dyeing, can solve the problems of high cost of dyeing and whitening, poor whiteness resistance to washing, and high energy consumption for steam whitening.

Active Publication Date: 2014-03-26
GUANGDONG ESQUEL TEXTILES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the defects that the whiteness of the current stereotyped whitening process is not washable, the cost of dyed yarn whitening is high, and the energy consumption of steam whitening is high, and proposes a cold pad batch whitening method

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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  • Cold pad-batch whitening method for cotton fabric
  • Cold pad-batch whitening method for cotton fabric
  • Cold pad-batch whitening method for cotton fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Select the pure cotton plain weave fabric with the background white of 80 after mercerizing, and the processing process is:

[0037] (1) Padding: First prepare a fluorescent whitening agent finishing solution with a fluorescent whitening agent of 5g / L, a softener of 10g / L, and a penetrating agent of 1g / L. The fluorescent whitening agent is Tinopal CBS-X (China Produced by Chuanhua Chemical Co., Ltd.), softener is XQS-1 (produced by Dongguan Xianqiao Chemical Co., Ltd.), penetrant is Lipotol TM (produced by Guangzhou Rihua Chemical Co., Ltd.), put the finishing liquid in the rolling trough, and adjust the rolling mill The pressure of the nip roller is 20N to control the nip rate to 70%, and then the dry cotton fabric enters the nip tank at a speed of 60m / min to pad the brightener solution.

[0038] (2) Rolling: The cotton fabric passing through the rolling mill is dropped and rolled, and the outer layer of the rolled fabric is covered with plastic to prevent the whitening age...

Embodiment 2

[0045] Choose a cotton and viscose blended twill fabric with a mercerized base white of 75. The processing process is:

[0046] (1) Padding: First prepare a fluorescent whitening agent finishing solution with a fluorescent whitening agent of 10g / L, a softener of 20g / L, and a penetrating agent of 2g / L. The fluorescent whitening agent is Uvitex BHT180% (China Heng Sime Chemical Co., Ltd.), softener is Sunmorl 66EG (Guangzhou Rihua Chemical Co., Ltd.), penetrant is DM-1232 (manufactured by China Demei Chemical Co., Ltd.), put the finishing liquid in the rolling trough, adjust the roll The pressure is 20N to control the nip rate to 70%, and then the dry cotton fabric is put into the nip to pad the whitener solution at a speed of 60m / min.

[0047] (2) Rolling: The cotton fabric passing through the rolling mill is dropped and rolled, and the outer layer of the rolled fabric is covered with plastic to prevent the whitening agent finishing liquid padding on the fabric from volatilizing.

[...

Embodiment 3

[0054] The pure cotton double-sided knitted fabric with a base white of 83 after mercerizing is selected, and the processing process is:

[0055] (1) Padding: Prepare a fluorescent whitening agent finishing solution with 20g / L of fluorescent whitening agent, 25g / L of softening agent, and 3g / L of penetrant, wherein the fluorescent whitening agent is Blancophor BBu 250% (Hong Kong Extension Na Chemical Co., Ltd.), the softener is Cerantine HDP (produced by Shanghai Clariant Chemical Co., Ltd.), the penetrant is Kieralon F-ALB (produced by BASF China Chemical Co., Ltd.), and the finishing liquid is put into the rolling trough to adjust the roll pressure It is 20N to control the nip rate to 70%, and then the dry cotton fabric is put into the nip tank to pad the whitening agent solution at a speed of 60m / min.

[0056] (2) Rolling: The cotton fabric passing through the rolling mill is dropped and rolled, and the outer layer of the rolled fabric is covered with plastic to prevent the whit...

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 discloses a cold pad-batch whitening method for cotton fabric. According to the method, a storage procedure is added between a padding feeding procedure and a drying procedure, the whiteness washable performance of the cotton fabric can be greatly improved, and compared with the unwashed cotton fabric, the whiteness value of the cotton fabric is only lowered by within 4 degrees after the whitened cotton fabric is washed five times at home according to an AATCC standard. The method has the advantages of being fewer in equipment loss, and lower in equipment investment cost.

Description

Technical field [0001] The invention relates to a method for whitening textile fabrics by using a cold padding method, and belongs to the technical field of textile printing and dyeing. Background technique [0002] At present, the fluorescent whitening fabrics on the market all have a serious decrease in whiteness after washing (according to the AATCCC-147 household washing standard, the whiteness drops by about 15 degrees after 5 household washings), resulting in yellowing of the cloth surface after washing. , Can not meet the requirements of high-grade whitening fabrics for whiteness and washing resistance. This is mainly because the current whitening process of fabrics generally adopts the method of setting whitening (padding→baking). For example, CN102409545 discloses a production process of ultra-fine denier cotton-nylon yarn-dyed fabric, including the following process steps: spinning → sizing warping → weaving → finishing, the finishing steps include: singeing → desizing...

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): D06B9/00D06B17/04D06B3/18D06B15/00
Inventor 赖宇坤周立明张玉高金规标
Owner GUANGDONG ESQUEL TEXTILES CO LTD
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