Catechin-containing ramie large biofiber and preparation method thereof

A technology of biological fiber and ramie fiber, applied in plant fiber, biochemical fiber treatment, fiber treatment, etc., can solve the problems of ramie fiber wrinkle resistance, low dyeing rate and color fixation rate, increase anti-virus, etc., and achieve water fastness The effect of improving the strength, improving the wrinkle resistance, and improving the K/S value

Inactive Publication Date: 2021-07-30
BESTEE MATERIAL (TSINGTAO) CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The large ramie biological fiber prepared by this method can solve the problems of ramie fiber wrinkle resistance, low dyeing rate and color fixation rate, and increase its antiviral property

Method used

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  • Catechin-containing ramie large biofiber and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of preparation method of the big ramie biological fiber containing catechin, comprises the following steps:

[0029] (1) Preparation of catechin microcapsules: catechin microcapsules were prepared with catechin as the core material and chitosan as the wall material, wherein the mass ratio of the core material to the wall material was 3:1;

[0030] (2) Alkali soaking: After washing the ramie fiber, keep the water content at 50%, put it into a high-pressure cooking pot and use a sodium hydroxide solution with a concentration of 180g / L to cook it, wherein the bath ratio is 1:12, and the temperature 70℃, time is 5h, pressure is 1.9×10 5 Pa.

[0031] (3) dealkalization: the ramie fiber after soaking in alkali is put into deionized water and washed three times, each washing 10min;

[0032] (4) Alkali neutralization: soak the ramie fiber after dealkalization in the dilute sulfuric acid solution of 2g / L and neutralize excess alkali, then rinse with deionized water to r...

Embodiment 2

[0041] A kind of preparation method of the big ramie biological fiber containing catechin, comprises the following steps:

[0042] (1) Preparation of catechin microcapsules: catechin microcapsules were prepared with catechin as the core material and chitosan as the wall material, wherein the mass ratio of the core material to the wall material was 3:1;

[0043] (2) Alkali soaking: After washing the ramie fiber, keep the water content at 50%, put it into a high-pressure cooking pot and use a sodium hydroxide solution with a concentration of 200g / L to cook, wherein the bath ratio is 1:12, the temperature 70℃, time is 5h, pressure is 1.9×10 5 Pa.

[0044] (3) dealkalization: the ramie fiber after soaking in alkali is put into deionized water and washed three times, each washing 15min;

[0045] (4) alkali neutralization: the ramie fiber after dealkalization is soaked in the dilute sulfuric acid solution of 3.5g / L and excess alkali is neutralized, (5) oxidation: the ramie fiber t...

Embodiment 3

[0050]A kind of preparation method of the big ramie biological fiber containing catechin, comprises the following steps:

[0051] (1) Preparation of catechin microcapsules: catechin microcapsules were prepared with catechin as the core material and chitosan as the wall material, wherein the mass ratio of the core material to the wall material was 3:1;

[0052] (2) Alkali soaking: After washing the ramie fiber, keep the water content at 50%, put it into a high-pressure cooking pot and use a sodium hydroxide solution with a concentration of 220g / L to cook, wherein the bath ratio is 1:10, and the temperature 70℃, time is 5h, pressure is 1.9×10 5 Pa.

[0053] (3) dealkalization: the ramie fiber after soaking in alkali is put into deionized water and washed three times, each washing 10min;

[0054] (4) Alkali neutralization: soak the ramie fiber after dealkalization in 2-3.5g / L dilute sulfuric acid solution to neutralize the excess alkali, then rinse with deionized water to remov...

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Abstract

The invention provides a preparation method of catechin-containing ramie large biofiber, and relates to the technical field of functional fiber processing. According to the method, firstly, ramie fiber is treated with alkali, cleaned and oxidized, and then the ramie fiber is modified with microencapsulated catechin, so that the combining capacity of the catechin and the ramie fiber is improved, and the ramie large biofiber with the good antiviral function is produced. The large biofiber prepared by the method not only has the antiviral function, but also improves the washing color fastness of the ramie fiber.

Description

technical field [0001] The invention relates to the technical field of functional fiber processing, in particular to a large ramie biological fiber containing catechin and a preparation method thereof. Background technique [0002] With the improvement of living standards, consumers' demand for green ecological textiles is increasing, and the development and utilization of natural biomass cellulose fiber resources has become an important issue in the textile industry. my country is the country with the widest distribution and largest output of ramie in the world, accounting for about 90% of the world's output. As a low-cost, large-yield, and biodegradable natural polymer material, ramie fiber is favored by consumers because of its excellent hygroscopicity, air permeability, antibacterial properties, and unique style. However, the structure of ramie fiber The characteristics make it have the characteristics of high degree of polymerization, high crystallinity, high Young's m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M23/12D06M15/03D06M13/152D06M11/38D06M11/50D06M101/06
CPCD06M23/12D06M15/03D06M13/152D06M11/38D06M11/50D06M16/00D06M2101/06
Inventor 黄效华甄丽池姗刘彦明
Owner BESTEE MATERIAL (TSINGTAO) CO LTD
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