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Bleaching technology of rose fiber knitted fabric

A technology for soft silk fibers and knitted fabrics, applied in the field of textile finishing technology, can solve the problems of low use cost of sodium hypochlorite, poor biodegradability, high bleaching and impurity removal rate, and achieve the effects of less fiber damage, soft hand feeling and less environmental pollution

Inactive Publication Date: 2016-06-22
江阴市长泾花园毛纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sodium chlorite bleaching has a high impurity removal rate and obvious bleaching effect, but the use cost is high and it produces toxic gas ClO 2 , causing environmental pollution
Sodium hypochlorite has lower usage cost and less energy consumption, but it produces adsorbable organic chlorides during bleaching, which has poor biodegradability and pollutes the environment

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

[0012] The bleaching process of the soft silk fiber knitted fabric of embodiment 1 comprises placing the soft silk fiber knitted fabric in the bleaching liquor for heating, the concentration of each component in the bleaching liquor is: hydrogen peroxide 4~6ml / L, penetrating agent 1g / L L, sodium silicate 2g / L, the bleaching temperature is 90°C, the bleaching time is 40min, and the pH value of the bleaching solution is 10.

[0013] Among them, the bath ratio of soft silk fiber knitted fabric is 1:18, and the penetrating agent is fatty alcohol polyoxyethylene ether.

Embodiment 2

[0015] The bleaching process of the soft silk fiber knitted fabric of embodiment 2 is characterized in that, comprising placing the soft silk fiber knitted fabric in the bleaching liquor for heating, the concentration of each component in the bleaching liquor is: hydrogen peroxide 6ml / L, penetrant 1.5g / L, sodium silicate 2.5g / L, the bleaching temperature is 95°C, the bleaching time is 40-60min, and the pH value of the bleaching solution is 10.5.

[0016] Among them, the bath ratio of soft silk fiber knitted fabric is 1:20, and the penetrating agent is fatty alcohol polyoxyethylene ether.

Embodiment 3

[0018] The bleaching process of the soft silk fiber knitted fabric in embodiment 3 is characterized in that it includes placing the soft silk fiber knitted fabric in the bleaching liquor for heating, and the concentration of each component in the bleaching liquor is: hydrogen peroxide 4-6ml / L, Penetrant 1-1.5g / L, sodium silicate 2-2.5g / L, the bleaching temperature is 90-95°C, the bleaching time is 40-60min, and the pH value of the bleaching solution is 10-10.5.

[0019] Among them, the bath ratio of soft silk fiber knitted fabric is 1: (18-20), and the penetrating agent is fatty alcohol polyoxyethylene ether.

[0020] The volume fraction of hydrogen peroxide is 4-6mL / L, the whiteness of the fabric increases greatly with the increase of the amount of hydrogen peroxide, and the loss of fabric strength becomes more and more serious, indicating that the volume fraction of hydrogen peroxide is too high at this time.

[0021] As the pH value of the bleaching solution increases, the ...

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 bleaching technology of a rose fiber knitted fabric. The technology is characterized in that the rose fiber knitted fabric is heated in a bleaching liquid at 90-95DEG C for 40-60min, the bleaching liquid comprises 4-6ml / L of hydrogen peroxide, 1-1.5g / L of an osmotic agent and 2-2.5g / L of sodium silicate, and the pH value of the bleaching liquid is 10-10.5. The rose fiber knitted fabric bleached through the technology has the advantages of soft handle, obviously improved whiteness, and decreased strength, and allows the strength to meet subsequent dyeing treatment and taking requirements.

Description

technical field [0001] The invention relates to a finishing process of textiles, in particular to a bleaching process of soft silk fiber knitted fabrics. Background technique [0002] Soft silk protein fiber is a kind of cellulose fiber modified by plant protein. It is an environmentally friendly green fiber with skin-friendly health care, far-infrared emission and natural negative oxygen ion release functions. The fiber itself is yellow and must be bleached after desizing and scouring to meet the dyeing requirements. Soft silk fiber has poor alkali resistance and heat resistance, and can only be bleached under weak alkaline conditions. The components of soft silk / pearl / tencel blended yarn are all cellulose fibers, and sodium chlorite, sodium hypochlorite and hydrogen peroxide can be used for bleaching. Sodium chlorite bleaching has a high impurity removal rate and obvious bleaching effect, but the use cost is high and it produces toxic gas ClO 2 , causing environmental p...

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): D06L3/02
Inventor 赵军伟赵明昌
Owner 江阴市长泾花园毛纺织有限公司
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