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Copper ammonia fiber bobbin yarn dyeing technology

A technology of cupro fiber and bobbin yarn is applied in the field of yarn dyeing, which can solve the problems of uneven hue, low brightness of natural dyes, and insufficient environmental protection of dyes, and achieve the effect of improving color fastness.

Inactive Publication Date: 2019-12-03
嘉兴市华利印染股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the dyeing of pure cupro ammonia fiber yarn, the existing dyes used are not environmentally friendly enough.
[0003] The brightness of natural dyes is not high, the hue is uneven, and the weather fastness is deviated. These shortcomings are largely determined by the structure of the dye itself.
When dyeing, due to the low affinity of natural dyes to fibers, it has the characteristics of low exhaustion rate on fibers and poor washing fastness.

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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  • Copper ammonia fiber bobbin yarn dyeing technology
  • Copper ammonia fiber bobbin yarn dyeing technology
  • Copper ammonia fiber bobbin yarn dyeing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] combine Figures 1 to 3 , this embodiment will be described in detail. The dyeing process of cupro fiber package yarn involved in this embodiment includes the following steps: (1) preparation of package yarn, (2) pre-dyeing treatment, (3) dyeing, and (4) post-treatment. The cupro yarn used is 9.7tex.

[0030] In the preparation of the package yarn in step (1), the preparation of the package yarn is to wind the cupro fiber yarn on the yarn package by means of loose winding; the density of the formed package yarn is 0.20g / m 3 ; The weight of each bobbin is 0.7kg; the bobbin used includes baffles at both ends and connecting rods connecting the baffles.

[0031] (2) pre-dyeing treatment: the bobbin yarn is placed on the bobbin yarn fixing frame in the bobbin yarn dyeing device; according to the liquor ratio of 1: 15, use the pre-dyeing treatment liquid to carry out pre-treatment to the bobbin yarn; the pre-dyeing treatment liquid Contains hydrogen peroxide, sodium hydrox...

Embodiment 2

[0049] The dyeing process of cupro fiber package yarn involved in this embodiment includes the following steps: (1) preparation of package yarn, (2) pre-dyeing treatment, (3) dyeing, and (4) post-treatment. The cupro yarn used is 9.7tex.

[0050] In the preparation of the package yarn in step (1), the preparation of the package yarn is to wind the cupro fiber yarn on the yarn package by means of loose winding; the density of the formed package yarn is 0.22g / m 3 ; The weight of each bobbin is 0.75kg; the bobbin used includes baffles at both ends and connecting rods connecting the baffles.

[0051] (2) pre-dyeing treatment: the bobbin yarn is placed on the bobbin yarn fixing frame in the bobbin yarn dyeing device; according to the liquor ratio of 1: 18, use the pre-dyeing treatment liquid to carry out pre-treatment to the bobbin yarn; the pre-dyeing treatment liquid Contains hydrogen peroxide, sodium hydroxide, sodium caramel, penetrant JFC, chelating agent, stabilizer, low tem...

Embodiment 3

[0059] The dyeing process of cupro fiber package yarn involved in this embodiment includes the following steps: (1) preparation of package yarn, (2) pre-dyeing treatment, (3) dyeing, and (4) post-treatment. The cupro yarn used is 9.7tex.

[0060] In step (1) preparation of the package yarn, the preparation of the package yarn is to wind the cupro fiber yarn on the yarn package by means of loose winding; the density of the formed package yarn is 0.23g / m 3 ; The weight of each bobbin is 0.8kg; the bobbin used includes baffles at both ends and connecting rods connecting the baffles.

[0061] (2) pre-dyeing treatment: the bobbin yarn is placed on the bobbin yarn fixing frame in the bobbin yarn dyeing device; according to the liquor ratio of 1: 20, the pre-dyeing treatment liquid is used to carry out pre-treatment to the bobbin yarn; the pre-dyeing treatment liquid Contains hydrogen peroxide, sodium hydroxide, sodium caramel, penetrant JFC, chelating agent, stabilizer, low tempera...

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Abstract

The invention discloses a copper ammonia fiber bobbin yarn dyeing technology. The technology includes the following steps of (1) preparation of a bobbin yarn, (2) dyeing pretreatment, (3) dyeing and (4) post-treatment. During dyeing pretreatment, the bobbin yarn is placed on a bobbin yarn fixing frame in a bobbin yarn dyeing device and treated by using a dyeing pretreatment solution, wherein the dyeing pretreatment solution contains hydrogen peroxide, sodium hydroxide, sodium caramel, a penetrating agent JFC, a chelating agent, a stabilizer, a low-temperature degreasing agent Tissocyl RC9-C and a permeation promoter Albaflow FFW. A natural dye in use is a sapele dye or a mulberry natural dye or a suberect spatholobus stem natural dye or a lithospermum natural dye or a gardenia blue naturaldye. The invention relates to the copper ammonia fiber bobbin yarn dyeing technology. The natural dye is used for dyeing copper ammonia fibers, so that the copper ammonia fibers are free of environment protection problems. The technology is improved according to the dyeing fastness problem of the natural dye on the copper ammonia fibers, so that the color fastness is greatly improved, and the requirements of people for wearing fabrics are met.

Description

technical field [0001] The invention relates to the technical field of yarn dyeing, in particular to a dyeing process for cupro fiber bobbin yarn. Background technique [0002] Cupro fiber is a kind of regenerated cellulose fiber. It is made by dissolving natural fiber raw materials such as cotton linters in a concentrated ammonia solution of copper hydroxide or alkaline copper salt to spin, and finally decomposed and regenerated fibers in a coagulation bath. A fiber obtained by processing the resulting cellulose. Cupro fiber has excellent wearing performance, similar to silk, and has good hygroscopicity and drape, which is in line with the trend of environmental protection clothing. The fabrics produced by using cupro fiber meet the requirements of contemporary people returning to nature and advocating ecological and environmental protection. However, for the dyeing of pure cupro fiber yarn, the existing dyes used are not environmentally friendly enough. [0003] The bri...

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): D06B1/02D06B3/09D06B23/20D06P1/44D06P1/673D06P3/60D06P5/02D06P5/10
CPCD06B1/02D06B3/09D06B23/20D06P1/445D06P1/6735D06P3/60D06P5/02D06P5/10
Inventor 仲国锋
Owner 嘉兴市华利印染股份有限公司