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Processing liquid and processing process for ultralow-temperature scouring and bleaching of cotton knitted fabric

A technology of cotton knitted fabric and treatment liquid, which is applied in the field of scouring and bleaching of cotton knitted fabric, can solve the problems of unsatisfactory processing effect, low hydrogen peroxide oxidation capacity, and inability to bleach fabrics, and achieve energy saving, fabric weight loss reduction, The effect of ensuring the processing quality

Active Publication Date: 2013-09-18
DYMATIC CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, low-temperature bleaching has a low oxidation capacity of hydrogen peroxide under low temperature conditions and cannot achieve the effect of bleaching fabrics. It needs to be coordinated with low-temperature hydrogen peroxide activators to achieve bleaching. Using hydrogen peroxide activators to achieve low-temperature scouring and bleaching at 80°C has a relatively mature process. However, the processing effect of the existing 60°C ultra-low temperature scouring and bleaching process is still unsatisfactory

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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  • Processing liquid and processing process for ultralow-temperature scouring and bleaching of cotton knitted fabric
  • Processing liquid and processing process for ultralow-temperature scouring and bleaching of cotton knitted fabric
  • Processing liquid and processing process for ultralow-temperature scouring and bleaching of cotton knitted fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] In this embodiment, the treatment solution for ultra-low temperature scouring and bleaching of cotton knitted fabrics includes the following components, and the concentration of each component is:

[0059] Scouring agent 1.0g / L;

[0060] Solid sodium hydroxide (NaOH) 5.0g / L;

[0061] 100% hydrogen peroxide (H 2 o 2 ) 4.5g / L;

[0062] Hydrogen peroxide activator 3.0g / L.

[0063] Wherein, the scouring agent is selected from the high-concentration scouring agent DM-1361 produced by Guangdong Demei Fine Chemical Co., Ltd.;

[0064] The hydrogen peroxide activator is selected from the hydrogen peroxide activator DM-1430 produced by Guangdong Demei Fine Chemical Co., Ltd.;

[0065] The hydrogen peroxide and solid sodium hydroxide are commercially available conventional reagents.

[0066] In this embodiment, the processing steps of ultra-low temperature scouring and bleaching of cotton knitted fabrics are as follows:

[0067] (1) Configure the treatment solution accordi...

Embodiment 2

[0073] In this embodiment, the treatment solution for ultra-low temperature scouring and bleaching of cotton knitted fabrics includes the following components, and the concentration of each component is:

[0074] Scouring agent 0.5g / L;

[0075] Solid sodium hydroxide (NaOH) 2.5g / L;

[0076] 100% hydrogen peroxide (H 2 o 2 ) 2.5g / L;

[0077] Hydrogen peroxide activator 1.7g / L.

[0078]The selection of reagents and the treatment process are the same as in Example 1.

Embodiment 3

[0080] In this embodiment, the treatment solution for ultra-low temperature scouring and bleaching of cotton knitted fabrics includes the following components, and the concentration of each component is:

[0081] Scouring agent 1.5g / L;

[0082] Solid sodium hydroxide (NaOH) 7.5g / L;

[0083] 100% hydrogen peroxide (H 2 o 2 ) 7g / L;

[0084] Hydrogen peroxide activator 4.7g / L.

[0085] The selection of reagents and the treatment process are the same as in Example 1.

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Abstract

The invention provides processing liquid for ultralow-temperature scouring and bleaching of cotton knitted fabric. The processing liquid comprises the following components according to concentration range: 0.2-10.0g / L of a scouring agent, 0.5-20.0g / L of solid sodium hydroxide (NaOH), 0.5-30.0g / L of hydrogen peroxide (H2O2) and 0.1-20.0g / L of a hydrogen peroxide activating agent. According to a processing process provided by the invention, the scouring and bleaching processing temperature of the cotton knitted fabric is decreased from 98 DEG C to 60 DEG C, at least 53.7% of energy can be saved, the weight loss of the fabric is lowered by 20%, the discharging of residual liquid COD (Chemical Oxygen Demand) is reduced by 8%, and the scouring and bleaching processing is carried out on the pure cotton knitted fabric in an energy-saving and environment-friendly manner in the premise that the processing quality is guaranteed.

Description

technical field [0001] The invention relates to the field of scouring and bleaching of cotton knitted fabrics, in particular to an ultra-low temperature scouring and bleaching process of cotton knitted fabrics. Background technique [0002] The scouring and bleaching of cotton fiber is a combined process of scouring and bleaching. The purpose of scouring is mainly to remove the symbiont on the fiber, so that the cotton fiber has excellent water absorption; while bleaching is mainly to remove it through the oxidation of hydrogen peroxide at high temperature. Pigments in fibers. [0003] The traditional scouring and bleaching process usually requires pure cotton knitted fabrics to be treated at a high temperature of 95-100°C for 60 minutes. Therefore, the traditional scouring and bleaching process has serious energy consumption and environmental protection problems such as high energy consumption, large fabric damage, and serious sewage discharge. [0004] The low-temperatur...

Claims

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Application Information

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IPC IPC(8): D06L3/02D06M11/38D06M101/06D06L4/12D06L4/13
Inventor 王深喜李志康沈华李世琪朱泉
Owner DYMATIC CHEM
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