Pretreatment process of high-comfort China-hemp fabric

A pre-treatment and hemp technology, which is applied in the treatment of textile materials, liquid/gas/steam textile material treatment, fiber treatment, etc., can solve the problems of rough hand feeling, rough hand feeling and high hardness of hemp fabric, and achieve improved dissolution Sexuality and chemical reaction performance, reducing high-temperature scouring time, and improving the effect of rough handle

Pending Publication Date: 2022-01-04
浙江吉麻良丝新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems in the prior art that hemp feels rough, hard, and prickly during use and wearing, and provides a high-comfort hemp fabric pretreatment process for improving hemp fabric Rough hand feeling problem, endow hemp fabric with high hand feeling and comfortable wearing characteristics

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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  • Pretreatment process of high-comfort China-hemp fabric
  • Pretreatment process of high-comfort China-hemp fabric
  • Pretreatment process of high-comfort China-hemp fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: A kind of pretreatment process of high comfort hemp fabric:

[0026] Steam flash explosion scouring and bleaching pretreatment: before the pretreatment, the hemp fabric is dipped in the scouring and bleaching pretreatment liquid (the scouring and bleaching pretreatment liquid includes 30g / l sodium hydroxide, 3g / l penetrating agent JFC, 2g / l scouring aid Sodium bisulfite), with a liquid volume of 120%, and then two-stage steam flash explosion treatment (the hemp fabric is heated and pressurized to 4.2MPa in the steam flash explosion processor, and the pressure is kept for 6s, and then the controlled flash explosion is decompressed to 2.5 MPa, further pressurized for 8s, and then fully flashed to normal pressure), and then taken out for washing and drying.

[0027] Bleaching treatment: the hemp fabric after the steam flash scouring and bleaching pretreatment is completed under the condition of pH=3 to soak the bleaching liquor (sodium chlorite of 15g / l, 10g / ...

Embodiment 2

[0034] Embodiment 2: A kind of high comfort hemp pretreatment process:

[0035] Steam flash explosion scouring and bleaching pretreatment: before the pretreatment, the hemp fabric is dipped in the scouring and bleaching pretreatment liquid (the scouring and bleaching pretreatment liquid includes 20g / l sodium hydroxide, 2g / l penetrating agent JFC, 2g / l scouring aid Sodium bisulfite), with 100% liquid content, and then two-stage steam flash explosion treatment (the hemp fabric is heated and pressurized to 4.2MPa in the steam flash explosion processor, and the pressure is kept for 6s, and then the controlled flash explosion is depressurized to 2.5MPa MPa, further pressurized for 6s, and then fully flashed to normal pressure), and then taken out for washing and drying.

[0036] Bleaching treatment: the hemp fabric after the steam flash scouring and bleaching pretreatment is completed under the condition of pH=5 to soak the bleaching solution (sodium chlorite of 25g / l, ammonium sul...

Embodiment 3

[0039] Embodiment 3: a kind of high comfort hemp pretreatment process:

[0040] Steam flash explosion scouring and bleaching pretreatment: before the pretreatment, the hemp fabric is dipped in the scouring and bleaching pretreatment liquid (the scouring and bleaching pretreatment liquid includes 30g / l sodium hydroxide, 3g / l penetrating agent JFC, 3g / l scouring aid Sodium bisulfite), with a liquid volume of 120%, and then two-stage steam flash explosion treatment (the hemp fabric is heated and pressurized to 4.5MPa in the steam flash explosion processor, and the pressure is kept for 8s, and then the controlled flash explosion is depressurized to 2.8 MPa, further pressurized for 8s, and then fully flashed to normal pressure), and then taken out for washing and drying.

[0041] Bleaching treatment: the hemp fabric after the steam flash scouring and bleaching pretreatment is completed under the condition of pH=4 to soak the bleaching liquor (sodium chlorite of 20g / l, 11g / l ammoniu...

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 pretreatment process of a high-comfort China-hemp fabric, and belongs to the technical field of fabric pretreatment. The pretreatment process of the high-comfort China-hemp fabric comprises the procedures of steam explosion scouring and bleaching pretreatment, bleaching, mercerizing and softening treatment, wherein the steam explosion scouring and bleaching pretreatment adopts a two-stage flash-explosion pretreatment technology; the bleaching process adopts sodium chlorite bleaching; the bleaching process has a remarkable capability of removing cellulose lignin impurities; the problem of incomplete impurity removal in the scouring process is solved; and the whiteness of the treated China-hemp fabric is high. The China-hemp fabric treated by the pretreatment process disclosed by the invention has soft, comfortable and smooth hand feeling and does not have scratchiness.

Description

technical field [0001] The invention relates to a high-comfort hemp fabric pretreatment technology and belongs to the technical field of fabric pretreatment. Background technique [0002] In recent years, with the improvement of people's living standards, people have begun to pursue a comfortable and refreshing dressing experience. Hemp fiber comes from the cortex and phloem of the hemp plant lotus, which is a part of the mechanical tissue of hemp lotus. The cross-section of hemp single fiber is irregular circular or polygonal, with a slender cavity in the center, and connected with the cracks and micropores distributed on the surface, so that the fiber has more capillary channels, which can quickly transfer and diffuse in the fabric. When the human body sweats, the sweat or moisture can be channeled to the surface of the fabric in time and lost to the air. According to estimates, the sweat absorption rate of hemp is twice that of cotton. Compared with cotton fabrics, hemp f...

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): D06M15/643D06L4/26D06B19/00D06B7/08D06M101/06
CPCD06M15/6436D06L4/26D06B19/00D06B7/08D06M2101/06D06M2200/50
Inventor 季萍王潮霞季国苗殷允杰
Owner 浙江吉麻良丝新材料股份有限公司
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