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Cotton knitted fabric short-process dyeing and finishing process

A short process, cotton needle technology, used in dyeing, textiles and papermaking, plant fibers, etc., can solve the problems of poor impurity removal, long process flow, waste water pollution, etc., to improve film fastness and shorten process flow. , the effect of enhancing the adhesion strength

Pending Publication Date: 2020-07-24
ZHEJIANG YINGFENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The dyeing and finishing process of cotton knitted fabrics usually includes scouring, bleaching, dyeing, finishing, etc., which has disadvantages such as long process flow, high energy consumption, poor impurity removal effect, high water consumption, and serious wastewater pollution.

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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  • Cotton knitted fabric short-process dyeing and finishing process
  • Cotton knitted fabric short-process dyeing and finishing process
  • Cotton knitted fabric short-process dyeing and finishing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A chelating agent consisting of 24 parts of hydroxypropyl polyamino allyl polyoxyethylene ether, 8 parts of allyl polyoxyethylene ether, 11 parts of acrylic acid, 12 parts of 2-acrylamido-2-methylpropanesulfonate Acid, initiator, sodium hydroxide, carbon disulfide, water, etc. are polymerized; when polymerizing, hydroxypropyl polyamino allyl polyoxyethylene ether, allyl polyoxyethylene ether, acrylic acid, acrylamide and 430 Put part of water in the reaction kettle, stir to dissolve, blow nitrogen for 30 minutes, heat up to 75°C, add dropwise a solution of 0.6 part of ammonium persulfate and 10 parts of water within 1 hour, keep warm for 4 hours, then cool down to below 20°C, by mole ratio n(hydroxypropyl polyamino allyl polyoxyethylene ether):n(NaOH):n(CS 2 )=1:4:3 Add NaOH first, then slowly add CS dropwise 2 , react at 25°C for 3h, and then react at 45°C for 2h to obtain the chelating dispersant. The molecular structure of the chelating dispersant is shown in formu...

Embodiment 2

[0036] A kind of silicone oil softener, its preparation method is: with 60 parts of D 4 , 6 parts of compound emulsifier, 280 parts of deionized water are mixed, emulsified by high-speed shearing, and a pre-emulsion is obtained;

[0037] Add 80 parts of deionized water, 12 parts of dodecylbenzenesulfonic acid, and 3 parts of composite emulsifier into the reaction kettle, raise the temperature to 80°C, and finish adding the pre-emulsion within 1.5 hours; part of quaternary ammonium salt silane coupling agent N,N-dimethyl-acryloyloxyethyl-propyltrimethoxysilane ammonium chloride, then react at constant temperature for 4 hours, and neutralize the pH value with sodium hydroxide; Add a solution of 0.2 parts of initiator and 5 parts of deionized water, 5 parts of diallylmethylglycidyl ammonium chloride, add dropwise for 0.5 hours, then react at constant temperature for 1 hour, and drop to room temperature to obtain silicone oil softener . The composite emulsifier is composed of no...

Embodiment 3

[0040] A kind of silicone oil softener, its preparation method is: with 82 parts of D 4 , 9 parts of compound emulsifier, 280 parts of deionized water are mixed, emulsified by high-speed shearing, and a pre-emulsion is obtained;

[0041]Add 80 parts of deionized water, 12 parts of dodecylbenzenesulfonic acid, and 3 parts of composite emulsifier into the reaction kettle, raise the temperature to 80°C, and finish adding the pre-emulsion within 1.5 hours; part of quaternary ammonium salt silane coupling agent N,N-dimethyl-acryloyloxyethyl-propyltrimethoxysilane ammonium chloride, then react at constant temperature for 4 hours, and neutralize the pH value with sodium hydroxide; Add a solution of 0.2 parts of initiator and 5 parts of deionized water, 5 parts of diallylmethylglycidyl ammonium chloride, add dropwise for 0.5 hours, then react at constant temperature for 1 hour, and drop to room temperature to obtain silicone oil softener . The composite emulsifier is composed of non...

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 cotton knitted fabric short-process dyeing and finishing process which comprises the steps of pre-processing, dyeing, and softening after-finishing. The step of pre-processing comprises the process of placing a cotton knitted fabric into pre-processing finishing liquor with the bath ratio being 1:8 at room temperature, raising the temperature to 100 DEG C at a rate being2 DEG C / min, and preserving heat for 30 to 45min; the step of dyeing comprises the process of feeding the fabric at room temperature, adding a leveling agent after 5min, adding a reactive dye after 10min, raising the temperature to 60 DEG C at a rate being 1 DEG C / min, adding 1 / 2 the total use amount of anhydrous sodium sulphate, preserving heat for 15min, then adding 1 / 2 the total use amount of anhydrous sodium sulphate again, continuing to preserve heat for 15min, adding sodium carbonate, continuing to perform dying for 30 to 60min, and performing cooling and water washing; the step of soaping is carried out under the conditions that the bath ratio is 1:8, the concentration of a soaping agent is 2g / L, the temperature is 95 DEG C, and the time is 10min; and the step of softening and setting comprises the process of padding the soaped cotton knitted fabric in 15 to 30g / L silicone oil softening agent finishing liquor, and performing stentering and drying through a setting machine at thetemperature ranging from 180 to 190 DEG C and at the speed ranging from 20 to 35m / min.

Description

technical field [0001] The invention relates to a dyeing and finishing process of textiles, in particular to a short-process dyeing and finishing process of cotton knitted fabrics, belonging to the technical field of short-process dyeing and finishing of textiles. Background technique [0002] Cotton knitted fabrics are soft to the touch, soft in luster and comfortable to wear, and have been widely used in textile and garment fabrics. [0003] The dyeing and finishing process of cotton knitted fabrics usually includes scouring, bleaching, dyeing, finishing, etc., which has the disadvantages of long process flow, high energy consumption, poor impurity removal effect, high water consumption, and serious wastewater pollution. Therefore, the short-process dyeing and finishing process of cotton knitted fabric is realized, which is conducive to saving energy, reducing consumption and reducing pollution. Contents of the invention [0004] In order to shorten the dyeing and finis...

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): D06P1/38D06P1/44D06P1/52D06P1/673D06P3/66D06P5/08D06M15/65C08G77/26C08G77/18D06M101/06
CPCD06P1/38D06P1/5257D06P1/445D06P1/6735D06P3/66D06P5/08D06M15/652C08G77/26C08G77/18D06M2101/06D06M2200/50
Inventor 王泽民周湘望李小清
Owner ZHEJIANG YINGFENG TECH CO LTD
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