A kind of preparation method of environment-friendly surface modified cotton fiber

A surface modification, cotton fiber technology, applied in the direction of plant fiber, fiber treatment, biochemical fiber treatment, etc., can solve the problems of high process equipment requirements, various finishing liquid components, etc., to achieve simple and easy control of the process, enhanced surface chemical activity, The effect of mild reaction conditions
CN112111970BActive Publication Date: 2021-05-07SHAOXING MAIBAO TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHAOXING MAIBAO TECH CO LTD
Publication Date
2021-05-07

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Abstract

The invention discloses a preparation method of environmentally friendly surface modified cotton fiber, which comprises grafting and oxidizing chitosan on cotton fiber in dilute acetic acid solution, and then grafting carboxyl and terminal amino groups in the cotton fabric through oxidizing chitosan It is obtained by amide chemical reaction of the amino group of the polymer. The method of the present invention is simple and easy, does not use chemical cross-linking agents, is environmentally friendly, and is compatible with the human body. The amino-terminated hyperbranched polymer on the surface of the modified cotton fabric prepared has a high grafting rate, good washing resistance, and long-lasting antibacterial properties. And after the protonation of the amino-terminated hyperbranched polymer, a layer of positive charges can be fixed on the surface of the cotton fiber, which can actively adsorb dyes without using inorganic salts and alkalis, and has high dyeing rate and color fastness. Therefore, it has a bright future in the field of salt-free ecological dyeing. broad.
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Description

technical field

[0001] The invention relates to a method for preparing environmentally friendly surface-modified cotton fibers, which belongs to the technical field of textile functional finishing and ecological dyeing. Background technique

[0002] Cotton fiber is an important textile fiber material. Its products are cheap, moisture-absorbing, breathable, comfortable, biodegradable, safe and environmentally friendly, and are favored by people. However, cotton fabrics have a high shrinkage rate and are prone to wrinkling and deformation. In a humid environment, they are prone to mold and deterioration, and are corroded by bacteria, causing health problems. At the same time, the traditional dyeing of cotton fibers has the problems of low exhaustion rate and low color fixation rate. It is necessary to use a large amount of inorganic salts, alkalis and dyeing auxiliaries in the dyeing liquor to improve the dye uptake rate and color fastness of the dyes, and the dyeing process t...

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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