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Special boiling-bleaching process for pure cotton knitted fabrics

A pure cotton needle and knitted fabric technology, which is applied in the field of boiling and bleaching technology, can solve the problems of poor cotton fabric feel, unsatisfactory impurity treatment effect, and large cotton fiber damage, so as to achieve soft and fluffy hand feeling, improve impurity removal effect, and not The effect of causing mechanical damage

Inactive Publication Date: 2018-02-02
盐城福汇纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the pretreatment process for cotton knitted fabrics mainly uses a mixture of caustic soda, degreaser, stabilizer, and scouring agent. Using this process, the effect of impurity treatment is not ideal, and it will also cause cotton fabrics to feel Poor, large cotton fiber damage and other problems

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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  • Special boiling-bleaching process for pure cotton knitted fabrics
  • Special boiling-bleaching process for pure cotton knitted fabrics
  • Special boiling-bleaching process for pure cotton knitted fabrics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: a kind of process that is specially used in the boiling and bleaching of pure cotton knitted fabric, comprises the steps:

[0027] (1) Immerse the pure cotton knitted fabric in hot water at 93°C for 5 minutes, and then flick the pure cotton knitted fabric at a specific frequency while it is hot. 10min in vibrating cold water;

[0028] (2) Arrange the pure cotton knitted fabric into the mixed cleaning agent at 50°C for 3 minutes; then keep the temperature condition unchanged, add an appropriate amount of caustic soda aqueous solution, and the pure cotton knitted fabric lasts for 3 minutes in an alkaline environment;

[0029] (3) Immerse the pure cotton knitted fabric in the bleaching mixture at 50°C, keep it warm for 3 minutes, then wash it in hot water at 95°C within 3 minutes, keep it warm for 45 minutes, cool it down to 77°C naturally, and put it in acetic acid solution at 50°C Medium peracid treatment;

[0030] (4) Arrange the pure cotton knitting int...

Embodiment 2

[0047] Embodiment 2: a kind of scouring and bleaching process that is specially used for pure cotton knitted fabrics, comprises the steps:

[0048] (1) Immerse the pure cotton knitted fabric in hot water at 90°C for 6 minutes, then flick the pure cotton knitted fabric at a specific frequency while it is hot. The flicking process lasts for 8 minutes, and then place the pure cotton knitted fabric 15min in vibrating cold water;

[0049] (2) Arrange the pure cotton knitted fabric into the mixed cleaning agent at 40°C for 6 minutes; then keep the temperature condition unchanged, add an appropriate amount of caustic soda aqueous solution, and the pure cotton knitted fabric lasts for 4 minutes in an alkaline environment;

[0050] (3) Immerse the pure cotton knitted fabric in the bleach mixture at 40°C, keep it warm for 5 minutes, then wash it in hot water at 93°C within 5 minutes, keep it warm for 50 minutes, cool it down to 75°C naturally, and put it in 40°C acetic acid solution Me...

Embodiment 3

[0067] Embodiment 3: a kind of process that is specially used in the boiling and bleaching of pure cotton knitted fabric, comprises the following steps:

[0068] (1) Immerse the pure cotton knitted fabric in hot water at 95°C for 4 minutes, then flick the pure cotton knitted fabric at a specific frequency while it is hot. 5min in vibrating cold water;

[0069] (2) Arrange the pure cotton knitted fabric into the mixed cleaning agent at 52°C for 6 minutes; then keep the temperature condition unchanged, add an appropriate amount of caustic soda aqueous solution, and keep the pure cotton knitted fabric in the alkaline environment for 2 minutes;

[0070] (3) Immerse the pure cotton knitted fabric in the bleaching mixture at 52°C, keep it warm for 2 minutes, then wash it in hot water at 98°C within 2 minutes, keep it warm for 40 minutes, cool it down to 78°C naturally, and put it in acetic acid solution at 52°C Medium peracid treatment;

[0071] (4) Arrange the pure cotton knittin...

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 special boiling-bleaching process for pure cotton knitted fabrics. The process includes steps: soaking in hot water, and performing fixed-frequency beating and microwave vibration treatment in cold water; performing heat insulation treatment in a mixed cleaning agent, and adding an appropriate amount of caustic soda solution; performing peracid treatment after bleaching treatment; deoxidizing; performing mixed enzyme treatment; performing pure water steam treatment; alternately putting into cold water and hot water environments to perform alternate vibratory cleaning,and finally cleaning in cold water to complete the boiling-bleaching process. The pure cotton knitted fabrics obtained according to the boiling-bleaching process have advantages of high cleanness andwhiteness, softness and fluffiness; fluffiness of the treated cotton fabrics is guaranteed, and softness and moisture absorbability of the cotton fabrics are further guaranteed; mechanical damages ofthe cotton fabrics are low; the pure cotton knitted fabrics obtained by treatment according to the process reach 89 in whiteness and 2.28mm / s in capillary effect and is lower than 0.1% in surface damage degree.

Description

technical field [0001] The invention belongs to the technical field of pretreatment of knitted fabrics, and in particular relates to a bleaching process specially used for pure cotton knitted fabrics. Background technique [0002] In the pure cotton weaving process, the cotton fiber contains impurities, such as colloids, etc., the existence of these impurities will affect the wetting performance of cotton fabrics, and affect the post-processing performance such as dyeing. Therefore, it is necessary to pre-process the cotton fabrics. Treatment to remove impurities to improve the wettability and permeability of cotton fabrics. This ensures the smooth progress of subsequent dyeing and other post-treatment processes. At present, the pretreatment process for cotton knitted fabrics mainly uses a mixture of caustic soda, degreaser, stabilizer, and scouring agent. Using this process, the effect of impurity treatment is not ideal, and it will also cause cotton fabrics to feel Poor,...

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): D06L4/12D06L4/13D06L4/40D06L4/75D06L1/16
CPCD06L4/12D06L1/16D06L4/13D06L4/40D06L4/75
Inventor 畅行军
Owner 盐城福汇纺织有限公司
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