Method for preparing high-strength crease-resisting cotton fabric under alkaline condition

An alkaline condition, wrinkled cotton fabric technology, applied in plant fibers, textiles, papermaking, fiber treatment, etc., can solve the problems of fabric strength loss, cellulose is not acid-resistant, etc., to improve the problem of strength decline, tear strength retention rate Improve the effect of wide application prospects and market prospects

Inactive Publication Date: 2017-05-31
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cellulose is not resistant to acid, and the degradation of cellulose caused by acid causes the loss of fabric strength

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

[0026] Add 70 g of para-ester (PBE) into 400 mL of water, and adjust the pH to 2-3 with sodium carbonate solution. The aqueous solution was mechanically stirred in an ice-water bath and cooled to 0-5°C, then a solution of acryloyl chloride (25 mL) in anhydrous ether (50 mL) was slowly added dropwise, and sodium acetate solution was added dropwise to control the pH of the reaction solution to about 4.0. After three hours of dropwise addition, the reaction was stopped and the diethyl ether was left to evaporate. The solution was acidified with 29 mL of concentrated hydrochloric acid (12 mol / L), salted out with 110 g of sodium chloride, and a precipitate slowly precipitated out. The off-white solid product was obtained by suction filtration, and freeze-dried with a yield of 80%.

Embodiment 2

[0028] Add 16g of the synthesized finishing agent AC-PBE (Example 1) into 180mL of deionized water and stir to dissolve: 3g of sodium carbonate is dissolved in 20mL of deionized water. Stir and mix the two solutions quickly, then immerse the cotton fabric, and then soak and roll twice (AC-PBE80g / L, sodium carbonate 15g / L), with a liquid retention rate of 80%, then dry at 50°C for 5min, and then place in a steamer Steam for 5 minutes (steam temperature 110°C, relative humidity 75%), then standard water washing, balance test. Wrinkle recovery angle WRA=242°, tear strength retention rate TS R = 80.3%.

Embodiment 3

[0030] Add 16g of the synthesized finishing agent AC-PBE (Example 1) into 180mL of deionized water and stir to dissolve: 3g of sodium carbonate is dissolved in 20mL of deionized water. Stir and mix the two solutions quickly, then immerse the cotton fabric, and then soak and roll twice (AC-PBE80g / L, sodium carbonate 15g / L), with a liquid retention rate of 80%, then dry at 50°C for 5min, and then place in a steamer Steam for 5 minutes (steam temperature 100°C, relative humidity 75%), then standard water washing, balance test. Wrinkle recovery angle WRA=230°, tear strength retention rate TS R = 78%.

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 preparing a high-strength crease-resisting cotton fabric under an alkaline condition. The method comprises the following steps: dissolving acrylamide para-ester serving as an alkaline finishing agent into water, and adding alkaline as a catalyst to obtain alkaline crease-resisting finishing liquid; immersing the cotton fabric into the alkaline crease-resisting finishing liquid, uniformly impregnating, then impregnating for two times and rolling for two times, wherein the pickup ratio is 70 to 80 percent; drying and steaming to obtain a finished product. The tear strength retention rate of the fabric prepared by the method disclosed by the invention is remarkably improved, and the problem of strength declination of a current crease-resisting finishing fabric is remarkably improved; the method has a broad application prospect and market prospect.

Description

technical field [0001] The invention belongs to the field of preparation of wrinkle-resistant cotton fabrics, in particular to a method for preparing high-strength wrinkle-resistant cotton fabrics under alkaline conditions. Background technique [0002] Cotton fabric has the characteristics of comfortable wearing and good hygroscopicity, and is loved by people. However, it is easy to wrinkle during taking, difficult to take care of, and cannot meet people's daily needs. Therefore, the anti-wrinkle finishing of cotton fabric has important practical significance. The main reason for the wrinkling of cotton fabrics is that the hydroxyl groups on the molecular chains in the amorphous region of cotton fibers can slip under the action of external force, and form hydrogen bonds in new positions to prevent the molecular chains from returning to their original state. [0003] At present, 2D resin is mainly used in the industry for anti-wrinkle finishing of cotton fabrics. This meth...

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): D06M13/41D06M101/06
CPCD06M13/41D06M2101/06D06M2200/20
Inventor 何瑾馨李富强唐文君董霞欧康康吴乾姚金龙向中林
Owner DONGHUA UNIV
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