Method capable of enhancing hydrophilic performance of cotton fibers

A cotton fiber and hydrophilic technology, applied in fiber treatment, plant fiber, biochemical fiber treatment, etc., can solve the problems of poor water absorption and softness, and achieve good softness, fast moisture dissipation and stable hydrophilic effect

Active Publication Date: 2020-08-04
安徽省农业科学院棉花研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there has been some research on cotton fiber, but there are still problems of poor softness and relatively poor water absorption.

Method used

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  • Method capable of enhancing hydrophilic performance of cotton fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method capable of enhancing the hydrophilic properties of cotton fibers, comprising the steps of:

[0028] S1, the cotton fiber is ultrasonically washed in a 50wt% ethanol aqueous solution, the number of washings is 4 times, dried, then sent to a concentration of 0.8mol / L sodium hydroxide solution and soaked at room temperature for 15h, filtered, washed until neutral, and obtained pre-treated cotton fibers;

[0029] S2. Fully swell 10kg of pretreated cotton fibers in 80kg of 1moL / L sodium hydroxide solution, and then add 10kg of epichlorohydrin, 0.05kg of dodecyltrimethylammonium chloride, and 0.05kg of tetradecane Trimethylammonium chloride, reacted at 80°C for 10h, filtered, washed with water and absolute ethanol, dried, then added 80kg of isopropanol to adjust the pH of the system to 9.2-9.8, and added 2kg of %HBP-NH 2 Solution, reacted at 50°C for 4h, washed with ethanol, and dried to obtain amino cotton fiber;

[0030] S3. Dissolve 4kg of chitosan in 150kg of ...

Embodiment 2

[0032] A method capable of enhancing the hydrophilic properties of cotton fibers, comprising the steps of:

[0033] S1, the cotton fiber is ultrasonically washed in a 70wt% ethanol aqueous solution, the number of washings is 2 times, dried, then sent to a concentration of 1.2mol / L sodium hydroxide solution and soaked at room temperature for 5h, filtered, washed until neutral, and obtained pre-treated cotton fibers;

[0034] S2. Fully swell 20kg of pretreated cotton fibers in 40kg of 2moL / L sodium hydroxide solution, and then add 2kg of epichlorohydrin, 0.01kg of benzyltriethylammonium chloride, and 0.01kg of tetradecyltriethylammonium chloride. Methyl ammonium chloride, reacted at 70°C for 20 hours, filtered, washed with water and absolute ethanol, dried, then added 40kg of isopropanol to adjust the pH value of the system to 9.2-9.8, and added 6kg of 0.6% of the mass fraction under nitrogen protection HBP-NH 2 solution, reacted at 60°C for 2h, washed with ethanol, and dried ...

Embodiment 3

[0037] A method capable of enhancing the hydrophilic properties of cotton fibers, comprising the steps of:

[0038] S1, the cotton fiber is ultrasonically washed in 55wt% ethanol aqueous solution, the number of times of washing is 3 times, dried, then sent into the concentration of 1.1mol / L sodium hydroxide solution and soaked at room temperature for 8h, filtered, washed until neutral, obtained pre-treated cotton fibers;

[0039]S2. Fully swell 18kg of pretreated cotton fibers in 50kg of 1.8moL / L sodium hydroxide solution, add 4kg of epichlorohydrin and 0.018kg of dodecyltrimethylammonium chloride in sequence, and react at 73°C for 18h , filtered, washed with water and absolute ethanol respectively, dried, and then added 50kg of isopropanol to adjust the pH value of the system to 9.2-9.8, and added 5kg of HBP-NH with a mass fraction of 0.65% under nitrogen protection 2 solution, reacted at 58°C for 2.5h, washed with ethanol, and dried to obtain amino cotton fiber;

[0040] S...

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Abstract

The invention discloses a method capable of enhancing hydrophilic performance of cotton fibers. The method comprises the following steps of activating the cotton fibers to obtain pre-treated cotton fibers; swelling the pre-treated cotton fibers fully in a sodium hydroxide solution, successively adding epichlorohydrin and a phase change catalyst to react for 10-20 hours at 70-80 DEG C, filtering, washing and drying the solution, adding isopropanol into the solution, adjusting the pH value of a system with alkali liquor to 9.2-9.8, adding 2-6 parts of 0.6-0.8% HBP-NH2 solution under nitrogen protection to react for 2-4 hours at 50-60 DEG C, and washing and drying the solution to obtain amino cotton fibers; dissolving chitosan in an acetic acid solution, adding soyabean proteins, stirring thesolution for 20-40 min at 70-80 DEG C, cooling the solution to 40-46 DEG C, adjusting the system to be neutral, carrying out enzymolysis and enzyme deactivation, adding the amino cotton fibers, stirring the solution for 20-40 min at 75-85 DEG C, and filtering and washing the solution and vacuum drying the solution to obtain the hydrophilic cotton fibers.

Description

technical field [0001] The invention relates to the technical field of cotton fiber modification, in particular to a method for enhancing the hydrophilic property of cotton fiber. Background technique [0002] Cloth is one of the most commonly used living materials for people. People have used cloth to make clothing, accessories, packaging materials, etc. for a long time. The use of cloth has brought great convenience to people's lives. With the development of society and the improvement of people's living standards, people's requirements for textiles, especially knitted fabrics, are getting higher and higher. Now people require knitted fabrics to have good air permeability, moisture absorption and perspiration performance in addition to softness, resilience, drape and other requirements. [0003] At present, the water absorption of cotton fibers cannot meet the requirements, and the water absorption of cotton fabrics is uneven during wet treatment, the pigment is unstable,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/61D06M15/03D06M15/15D06M13/144D06M11/38D06M13/11D06M16/00D06M101/06
CPCD06M13/144D06M11/38D06M13/11D06M15/61D06M15/03D06M15/15D06M16/003D06M2101/06D06M2200/50
Inventor 叶泗洪邓小楠白雪程邦进李常凤刘方志闫晓明
Owner 安徽省农业科学院棉花研究所
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