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Cotton loose fiber dyeing method

A processing method and loose fiber technology, which are applied in the field of cotton loose fiber dyeing and processing, can solve the problems of yarn dyeing, piece dyeing defective products, repeated processes, time-consuming and other problems, and achieve the effects of reducing yarn dyeing, reducing costs, and feeling soft.

Inactive Publication Date: 2004-09-15
余姚久丰染色厂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many repeated processes back and forth, time-consuming and labor-intensive, resulting in unnecessary waste, and it is easy to cause defective products in yarn dyeing and piece dyeing

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

example 1

[0014] Select 100 kilograms of sawtooth cotton, put the cotton into a solution with a liquor ratio of 1:15 and 3.8 grams per liter of water refining agent (RAS-1) at room temperature, raise the temperature to 100°C and keep it for 50-60 minutes, and let go of all the feet. water, wash with water.

[0015] Dyeing includes the use of azo dyes (such as Chinese patent CN-94113398), according to the ratio of dyes of different colors, plus 1% soda ash, in the softened hard water dye solution, the dyeing bath ratio is controlled at 1:15, and the smelted Hang the cotton into the dye solution with the above formula and the initial temperature of 30°C for 5 minutes, then add 12% sodium bicarbonate, after 8 minutes, the temperature is raised to 80°C at a rate of 0.5°C per minute, and after 90 minutes of heat preservation, it is lowered to 50°C. Drain all the foot water at ℃, change the water to wash, treat with 2-3% glacial acetic acid at room temperature for 15 minutes to remove floatin...

example 2

[0017] Select 100 kilograms of sawtooth cotton, put the cotton into a solution with a bath ratio of 1:20 and 4.2 grams per liter of water refining agent (RAS-2) at room temperature, raise the temperature to 90°C and keep it warm for 50-60 minutes, and let go of all the feet. water, wash with water.

[0018] Dyeing includes the use of azo dyes (such as Chinese patent CN-94193270), according to the ratio of dyes of different colors, plus 1.5% soda ash, in the softened hard water dye solution, the dyeing bath ratio is controlled at 1:15, and the smelted Hang the cotton into the dye solution with the above formula and the initial temperature of 30°C for 5 minutes, then add 12% sodium bicarbonate, after 8 minutes, the temperature is raised to 80°C at a rate of 0.5°C per minute, and after 90 minutes of heat preservation, it is lowered to 50°C. Drain all the foot water at ℃, change the water to wash, treat with 2-3% glacial acetic acid at room temperature for 15 minutes to remove flo...

example 3

[0020] Select 100 kilograms of sawtooth cotton, put the cotton into a solution with a bath ratio of 1:25 and a solution containing 4.0 g / liter of water refining agent at room temperature, raise the temperature to 98°C and keep it warm for 60-70 minutes, drain all the foot water, and wash with water.

[0021] Dyeing includes the use of azo dyes (such as Chinese patent CN-01809952), according to the ratio of dyes of different colors, plus 1.5% soda ash, in the softened hard water dye solution, the dyeing bath ratio is controlled at 1:18, and the smelted Hang the cotton into the dye solution with the above formula and the initial temperature of 30°C for 5 minutes, then add 12% sodium bicarbonate, after 8 minutes, the temperature is raised to 80°C at a rate of 0.5°C per minute, and after 90 minutes of heat preservation, it is lowered to 50°C. Drain all the foot water at ℃, change the water to wash, treat with 2-3% glacial acetic acid at room temperature for 15 minutes to remove flo...

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 dyeing process method for loose fiber of cotton, sliver, and cotton roll. It includes changes the traditional process of spinning-before-dyeing into the one of dyeing-before-spinning. The method uses azo dyes to dye the loose cotton, the dyed loose cotton is colorful cotton with five colors, the color includes red, yellow, brown and black. It can be produced without special appliances, especially applies to small industry, the color difference of the product is small, the product is soft, pluffy, it solves the problem of color floating, fading, contaminating, cotton joint, bad color firm rate. It reduces yarn back, high speed cone winding process.

Description

1. Technical field [0001] The present invention relates to a cotton loose fiber dyeing processing method, and more particularly relates to a method for dyeing loose cotton, cotton slivers and loose cotton fibers with azo dyes, and the dyed loose cotton is five-color cotton with red color , yellow, coffee and black dyeing processing methods. 2. Background technology [0002] Cotton knitted inner and outer garments have become popular in the international market because of their good water absorption, strong air permeability, antistatic, easy decontamination, and soft texture. Nowadays, all-cotton sportswear is more popular among people. However, at present, most of the knitted garments on the market are made by weaving first and then dyeing, so the color is monotonous, the variety of designs and colors is small, and the process is long. Cotton is spun into bobbins by cotton spinning mills, and then finished into skeins to be dyed. After dyeing, the skeined yarn needs to be 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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Patent Type & Authority Applications(China)
IPC IPC(8): D06B3/02D06P1/02
Inventor 杨雪涛杨卫明施兴德
Owner 余姚久丰染色厂有限公司
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