Method for dyeing and finishing cotton knitted fabric in one step

A cotton knitting and fabric technology, applied in the processing of textile materials, liquid/gas/steam textile material processing, fabric surface trimming, etc., can solve problems such as not easy to prevent, reduce energy and water consumption, strong anti-shrinkage , Excellent air permeability

Inactive Publication Date: 2012-10-24
SHAOXING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Easing shrinkage can be slightly removed through relaxation treatment during fabric processing or continuous compression finishing in the final process, but it is not easy to prevent shrinkage caused by yarn bulking because it is the nature of cellulose fibers

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

[0015] A one-step method for dyeing and finishing cotton knitted fabrics, comprising the following steps: first add a specified amount of clear water into a container, then add a finishing agent, continuously stir, and adjust the pH value to 4.5, after the complete reaction, add dye, and then Put the bad cloth to be dyed into the container for dyeing, and then carry out cross-linking, baking, washing, softening, dehydration, smoothing and softening agent, tenter heat setting, inspection and packaging; the finishing agent is composed of citric acid and butane Tetracarboxylic acid is configured, and the weight percentages of citric acid and butane tetracarboxylic acid are 40% and 60% respectively, and the weight percentage concentration of finishing agent in clear water is 40%.

[0016] For the baking process, the baking temperature is controlled at 110-180°C, the baking time is 2-3min, the liquid extrusion rate is 80-90%, the speed is 10m / min, and the baking process is in the he...

Embodiment 2

[0018] A one-step method for dyeing and finishing cotton knitted fabrics, comprising the following steps: first add a specified amount of clear water into a container, then add a finishing agent, stir constantly, and adjust the pH value to 5, after the reaction is complete, add dye, and then Put the bad cloth to be dyed into the container for dyeing, and then carry out cross-linking, baking, washing, softening, dehydration, smoothing and softening agent, tenter heat setting, inspection and packaging; the finishing agent is composed of citric acid and butane Tetracarboxylic acid is configured, and the weight percentages of citric acid and butane tetracarboxylic acid are 50% and 50% respectively, and the weight percentage concentration of finishing agent in clear water is 30%.

[0019] In the baking process, the baking temperature is controlled at 110-180°C, the baking time is 2-3min, the liquid extrusion rate is 80-90%, the speed is 12m / min, and the baking process is in the heat...

Embodiment 3

[0021] A one-step method for dyeing and finishing cotton knitted fabrics, comprising the following steps: first add a specified amount of clear water into a container, then add a finishing agent, stir continuously, and adjust the pH value to 6, after the reaction is complete, add dye, and then Put the bad cloth to be dyed into the container for dyeing, and then carry out cross-linking, baking, washing, softening, dehydration, smoothing and softening agent, tenter heat setting, inspection and packaging; the finishing agent is composed of citric acid and butane Tetracarboxylic acid is configured, and the weight percentages of citric acid and butane tetracarboxylic acid are 45% and 55% respectively, and the weight percentage concentration of the finishing agent in clear water is 50%.

[0022] In the baking process, the baking temperature is controlled at 110-180°C, the baking time is 2-3min, the liquid extrusion rate is 80-90%, the speed is 15m / min, and the baking process is in th...

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 method for dyeing and finishing cotton knitted fabric in one step, belonging to the technical field of the process for dyeing and finishing textile fabric. The method comprises the following steps: adding a predetermined amount of clear water in a container, adding a finishing agent, stirring without stop, adjusting the pH value to 4.5-6, adding a dye after the materials react completely, putting the grey fabric to be dyed in the container, dyeing, crosslinking, baking, cleaning, softening, dewatering, applying a smoothening softener, stentering and thermosetting, inspecting and packaging. The finishing agent is prepared from 40-50% by weight of citric acid and 50-60% by weight of butane tetracarboxylic acid, and the finishing agent accounts for 30-50% by weight in the clear water. The cotton knitted fabric processed by adopting the process has the advantages of soft and smooth feel, very strong shrink and wrinkle resisting capacity and excellent breathability. The method has the advantages of low energy consumption and low production cost.

Description

technical field [0001] The invention discloses a one-step method for dyeing and finishing cotton knitted fabrics, and belongs to the technical field of dyeing and finishing processes of textile fabrics. Background technique [0002] Because cellulose fiber has excellent water absorption, hygroscopicity, moderate strength and easy dyeing, it is the main material for underwear and shirts, especially natural fibers such as cotton and hemp. But fabrics made from these natural fibers inevitably crease and shrink when washed. At the same time, the regenerated cellulose fiber that appeared in the early 20th century, due to its low wet strength and the shrinkage and wrinkles during washing exceeded the allowable limit, made the creases and shrinkage during washing more serious. To solve this problem, anti-wrinkle finishing has appeared for cotton knitted fabrics. [0003] Anti-wrinkle finishing, also known as easy care, durable press finishing, wrinkle resistance, washability, non...

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): D06B3/10D06C27/00D06C7/02D06M13/192D06M101/06
Inventor 张新华张若煜
Owner SHAOXING UNIVERSITY
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