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Processing method of ultra-white pure cotton knitted fabric

A technology for knitted fabrics and processing methods, which is applied to bleached products, textiles, papermaking, and fiber processing, and can solve problems such as low whiteness index, irregular shade, and poor light fastness, and achieve high whiteness index and pure shade natural effect

Inactive Publication Date: 2014-03-19
CHANGSHU XINLEI KNITTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] However, the white cotton fabrics currently on the market have low whiteness index, irregular shade, poor light fastness, and are prone to yellowing during use and wearing.

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

[0018] A processing method for ultra-white pure cotton knitted fabrics, comprising the steps of:

[0019] 1) knitting;

[0020] 2) Acid-base compound cracking: Add water, the bath ratio is 2:9, add 1g / L cracking agent, 2g / L bleaching agent, heat up to 75°C, keep warm for 35min, add 20g / L liquid caustic soda, heat up to 80°C, Keep warm for 45 minutes, drain, add water again, the liquor ratio is 2:15, heat up to 95°C, wash for 20 minutes, and drain;

[0021] 3) Oxygen bleaching and whitening: add water, the bath ratio is 2:9, add 3g / L degreasing agent, 3g / L hydrogen peroxide stabilizer, 15g / L liquid caustic soda in sequence, raise the temperature to 70°C, add 27g / L hydrogen peroxide, and treat After 25 minutes, add 1owf% fluorescent whitening agent, heat up to 90°C, keep warm for 75 minutes, and drain;

[0022] 4) Dehydration, opening and drying;

[0023] 5) Resin setting: The cloth is dipped in the resin setting treatment solution uniformly mixed with 40g / L low-formaldehyde ...

Embodiment 2

[0029] A processing method for ultra-white pure cotton knitted fabrics, comprising the steps of:

[0030] 1) knitting;

[0031] 2) Acid-base compound cracking: add water, the bath ratio is 2:9, add 2g / L cracking agent, 3g / L bleaching agent, heat up to 75°C, keep warm for 35min, add 20g / L liquid caustic soda, heat up to 80°C, Keep warm for 45 minutes, drain, add water again, the liquor ratio is 2:15, heat up to 95°C, wash for 20 minutes, and drain;

[0032] 3) Oxygen bleaching and whitening: add water, the bath ratio is 2:9, add 4g / L degreasing agent, 4g / L hydrogen peroxide stabilizer, 15g / L liquid caustic soda in sequence, raise the temperature to 70°C, add 27g / L hydrogen peroxide, and treat After 25 minutes, add 2owf% fluorescent whitening agent, heat up to 90°C, keep warm for 75 minutes, and drain;

[0033] 4) Dehydration, opening and drying;

[0034] 5) Resin setting: The cloth is dipped in the resin setting treatment solution uniformly mixed with 40g / L low-formaldehyde ...

Embodiment 3

[0040] A processing method for ultra-white pure cotton knitted fabrics, comprising the steps of:

[0041] 1) knitting;

[0042] 2) Acid-base compound cracking: add water, the bath ratio is 2:9, add 1.2g / L cracking agent, 2.3g / L bleach treatment agent, heat up to 75°C, keep warm for 35min, add 20g / L liquid caustic soda, heat up to 80 ℃, keep warm for 45 minutes, drain, add water again, the bath ratio is 2:15, heat up to 95 ℃, wash for 20 minutes, and drain;

[0043] 3) Oxygen bleaching and whitening: add water, the bath ratio is 2:9, add 3.4g / L degreaser, 3.4g / L hydrogen peroxide stabilizer, 15g / L liquid caustic soda in sequence, heat up to 70°C, add 27g / L hydrogen peroxide , treated for 25 minutes, added 1.2owf% fluorescent whitening agent, heated to 90°C, kept warm for 75 minutes, and drained;

[0044] 4) Dehydration, opening and drying;

[0045] 5) Resin setting: The cloth is dipped in the resin setting treatment solution uniformly mixed with 40g / L low-formaldehyde resin ...

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 processing method of ultra-white pure cotton knitted fabric. The method comprises the following steps: 1) knitting; 2) carrying out acid and alkali compound cracking; 3) bleaching by oxygen and whitening, namely adding water at the bath ratio of 2:9, orderly adding 3-4g / L degreaser, 3-4g / L hydrogen peroxide stabilizer and 15g / L caustic soda liquid, warming to 70 DEG C, adding 27g / L hydrogen peroxide to process for 25 minutes, adding 1-2owf% of fluorescent brightener, warming to 90 DEG C, preserving heat for 75 minutes, and draining away water; 4) dewatering, scutching and drying; 5) carrying out resin molding; 6) re-bleaching and whitening, namely adding water at the bath ratio of 2:9, orderly adding 3-4g / L degreaser, 1-2g / L hydrogen peroxide stabilizer and 6-7g / L liquid caustic soda, warming to 75 DEG C, adding 2-3g / L hydrogen peroxide to process for 20 minutes, adding 1-2owf% of fluorescent brightener, warming to 95 DEG C, preserving heat for 65 minutes, and draining away water; 7) dewatering and drying; 8) molding; and 9) preshrinking. The pure cotton knitted fabric processed by the method is high in whiteness index, anti-yellowing, and pure and natural in colored light.

Description

technical field [0001] The invention relates to a processing method of ultra-white pure cotton knitted fabric. Background technique [0002] However, the white pure cotton fabrics currently on the market have low whiteness index, irregular shade, poor light fastness, and are prone to yellowing during use and wearing. Contents of the invention [0003] The object of the present invention is to provide a processing method of ultra-white pure cotton knitted fabric, the processed pure cotton knitted fabric has high whiteness index, anti-yellowing and pure and natural shade. [0004] In order to achieve the above object, the technical solution of the present invention is to design a processing method of ultra-white pure cotton knitted fabric, comprising the steps of: [0005] 1) knitting; [0006] 2) Acid-base compound cracking: Add water, the bath ratio is 2:9, add 1-2g / L cracking agent, 2-3g / L bleaching agent, heat up to 75°C, keep warm for 35min, add 20g / L liquid caustic s...

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): D06L3/14D06L3/02D06L3/12D06M15/643D06M15/39D06M11/38D06M101/06D06L4/12D06L4/13D06L4/614D06L4/657
Inventor 马培英
Owner CHANGSHU XINLEI KNITTING
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