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Method for processing high grade color yarns treated by post mercerization

A technology of mercerizing treatment and processing method, applied in dyeing method, mercerizing of yarn/thread/filament, yarn, etc., can solve the problems of long production cycle, intolerant of post-mercerizing treatment, and difficult to spin high-count yarn in color spinning , to achieve the effect of expanding the scope and variety, shortening the production cycle, and increasing the mercerizing process

Inactive Publication Date: 2010-01-13
WUXI NATURAL GREEN FIBER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the preparation process of colored spinning yarn, the elasticity and friction coefficient of cotton are reduced after dyeing, boiling and bleaching, and the spinnability is reduced, so it is difficult to prepare high-count yarn.
Secondly, the existing production process of color spinning starts from cotton dyeing, first dyes the corresponding cotton according to each color, then blends the cotton, and then spins the yarn. It takes at least 40 days from cotton dyeing to yarn making time, the production cycle is long, and it is not suitable for the current market demand that requires rapid response
In addition, when fabrics made of colored spinning are subjected to post-mercerizing treatment, the alkali used in mercerizing will destroy the covalent bond when the dye is combined with the fiber, which will weaken the binding ability of the dye and fiber, resulting in fading
[0004] The defects of color-spun yarn, which are difficult to spin high-count yarns, have a long production cycle, and are not resistant to post-mercerizing treatment, have seriously affected the further application of color-spun yarn

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

[0027] A kind of raw material ratio is " 5% yellow cotton + 5% red cotton + 90% uncolored cotton " the processing method of producing gray-blue after-resistance mercerized high-count colored spinning yarn, comprising the following processing steps:

[0028] 1. Dyeing of yellow cotton and red cotton

[0029] Using high-temperature and alkali-resistant dyes, the cotton is dyed yellow and red respectively on the bulk fiber dyeing machine, and the uniform dyeing is ensured by controlling the amount of dye, salt and alkali, and color fixing time. The dye concentration is 0.5-1% (owf), the dosage of salt: 20g / L-30g / L, the dosage of alkali 10g / L-20g / L, and the time is 45min.

[0030] 2. Cotton blending

[0031] According to the weight ratio of 5:5:90, the yellow, red, and natural color cotton are piled up on the cotton opening and cleaning machine and mixed, so that the fibers of various colors are distributed in various parts of the yarn.

[0032] 3. Spinning

[0033] The process...

Embodiment 2

[0041] A processing method for producing high-count colored spinning yarn with a blue-black post-resistant mercerizing treatment with a raw material ratio of "7% black cotton + 93% natural color cotton", comprising the following processing steps:

[0042] 1. Black cotton dyeing

[0043] Use high-temperature alkali-resistant dyes to dye black cotton on a loose fiber dyeing machine, and ensure uniform dyeing by controlling the amount of dye, salt and alkali, and color fixation time. The dye concentration is 0.5-1% (owf), the dosage of salt: 20g / L-30g / L, the dosage of alkali 10g / L-20g / L, and the time is 45min.

[0044] 2. Cotton blending

[0045] According to the weight ratio of 7:93, the black cotton and the natural color cotton are piled up on the cotton opening and cleaning machine to mix the cotton, so that the fibers of various colors are distributed in various parts of the yarn.

[0046] 3. Spinning

[0047] The process of carding, drawing, roving, spun yarn, and doublin...

Embodiment 3

[0073] A processing method for producing red-purple post-resistant mercerized high-count color-spun yarn with a raw material ratio of "8% blue cotton sliver + 92% boiled and bleached cotton sliver", comprising the following processing steps:

[0074] 1. Cotton preparation

[0075] 2. Combed cotton made into sliver

[0076] Cleaning, combing, pre-merging, coiling and combing into sliver.

[0077] 3. Cotton sliver dyeing

[0078] A high-temperature alkali-resistant dye is used to dye 8% by weight cotton sliver blue, and in addition, 92% by weight cotton sliver is boiled and bleached.

[0079] The steps of cotton sliver dyeing process are as follows:

[0080] Cage, boil and bleach, dehydrate, dye, steam. Enzyme washing is carried out with boiling and bleaching enzyme, the temperature is 60°C-80°C, and the time is 30-60min. The steaming temperature is about 100°C-110°C, and the time is 10min-20min.

[0081] 4. Draw frame, roving, spun yarn, doubling

[0082] Select the blue...

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 relates to a method for processing high grade color yarns treated by post mercerization, comprising the following steps: cotton dyeing, i.e. respectively selecting a certain amount of cotton to be dyed into various standard colors by adopting high temperature alkali resistant dyes; cotton blending, i.e. proportionally blending one or more of the cotton dyed into standard colors with natural color cotton according to requirements; and spinning yarns, i.e. dyeing yarns by adopting high temperature alkali resistant dyes. In the method, only a few of specific standard colors are required to dye in the process of cotton dyeing, yarns of different color systems can be combined through redyeing yarns, thereby accelerating the production process of color yarns; cotton dyeing and yarn dyeing both adopt high temperature alkali resistant dyes, thereby resisting post mercerization and improving the color fastness, gloss and washing shrinkage; only little dyed cotton is necessarily taken to be blended with a large amount of the natural color cotton in the process of cotton blending so as to reduce the spinnability due to cotton dyeing as much as possible and spin high count yarns. In addition, the method also can adopt cotton silver dyeing.

Description

technical field [0001] The invention relates to a processing method of high-count colored spun yarn, in particular to a processing method of high-count colored spun yarn which can withstand mercerizing treatment after being woven into fabric. Background technique [0002] Color spun yarn is generally a yarn made by mixing two or more fibers of different colors. The fabric made of color spun yarn has a hazy and natural color, which is very popular among consumers. [0003] However, during the preparation process of colored spinning yarn, the elasticity and friction coefficient of cotton are reduced after being dyed, boiled and bleached, and the spinnability is reduced, so it is difficult to prepare high-count yarn. Secondly, the existing production process of color spinning starts from cotton dyeing, first dyes the corresponding cotton according to each color, then blends the cotton, and then spins the yarn. It takes at least 40 days from cotton dyeing to yarn making The tim...

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): D02G3/04D06P3/60D06B7/04
Inventor 朱国民
Owner WUXI NATURAL GREEN FIBER TECH
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