A kind of preparation method of modified asparagus fiber

A technology of asparagus fiber and asparagus, which is applied in the field of textile materials, can solve the problems of not much mechanical performance of asparagus fiber, improvement of spinnability and functionality, limited degumming rate of asparagus, etc. Achieve the effects of improving spinnability, improving handle and softness, and improving structure

Active Publication Date: 2018-12-11
TAIZHOU LAI & KE INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prepared asparagus can be used in spinning, weaving, and garment processing, but the mechanical properties of the prepared asparagus fibers have not been greatly improved, and their spinnability and functionality still need to be improved
Chinese patent CN 105220242A discloses a soft asparagus fiber for weaving. The asparagus is mechanically beaten to remove impurities, then subjected to microwave treatment, enzyme treatment and microbial fermentation modification, and finally washed with water, soaped, fluffed and dried to obtain a soft fiber. Asparagus fiber, the method uses microwave heating to activate asparagus, and then uses enzyme treatment and microbial fermentation to degumming the asparagus, the degumming rate of asparagus prepared by this method is limited, and its spinnability will also be limited
In addition, there are also reports of antibacterial modification of asparagus fiber, but the effect is not great

Method used

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  • A kind of preparation method of modified asparagus fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Using fresh asparagus with high maturity as raw material, let it dry naturally until the water content is 8.5%, remove impurities by mechanical beating, soak in deionized water, and ultrasonically remove impurities and soften for 60-90min under 200W power to obtain the pre-treated Processed asparagus.

[0028] (2) Immerse the pretreated asparagus asparagus prepared in step (1) in the degumming solution, heat and ultrasonically treat it at 45°C and 200W power for 30min, take it out and wash it fully, and obtain degummed asparagus asparagus with a residual glue rate of 15% The grass fiber, wherein the components in the degumming solution, by weight, include: 30 parts of sodium hydroxide, 10 parts of potassium dihydrogen phosphate, and 60 parts of deionized water.

[0029] (3) Immerse the degummed asparagus fiber prepared in step (2) in 2 g / L acetic anhydride mixed with glacial acetic acid solution, raise the temperature to 50° C. Fully washed with water and dried to ...

Embodiment 2

[0032] (1) Using fresh asparagus with high maturity as raw material, let it dry naturally until the water content is 8.8%, remove impurities by mechanical beating, soak in deionized water, and ultrasonically remove impurities and soften for 90 minutes at a power of 250W to obtain pretreated Asparagus.

[0033] (2) Immerse the pretreated asparagus asparagus prepared in step (1) in the degumming solution, heat and ultrasonically treat it at 50°C and 200W power for 60min, take it out and wash it fully, and obtain degummed asparagus asparagus with a residual glue rate of 18% The grass fiber, wherein the components in the degumming solution, by weight, include: 50 parts of sodium hydroxide, 30 parts of potassium dihydrogen phosphate, and 80 parts of deionized water.

[0034] (3) Immerse the degummed asparagus fiber prepared in step (2) in 5 g / L acetic anhydride mixed with glacial acetic acid solution, raise the temperature to 50° C. Fully washed with water and dried to obtain acet...

Embodiment 3

[0037] (1) Use fresh asparagus with high maturity as raw material, let it dry naturally until the water content is 8.6%, remove impurities by mechanical beating, soak in deionized water, and ultrasonically remove impurities and soften for 70 minutes under 220W power to obtain pretreated Asparagus.

[0038] (2) Immerse the pretreated Asparagus japonica prepared in step (1) in the degumming solution, heat and ultrasonically treat it at 47°C and 200W power for 40min, take it out and wash it fully, and obtain the degummed asparagus asparagus with a residual glue rate of 16%. The grass fiber, wherein the components in the degumming solution, by weight, include: 20 parts of sodium hydroxide, 15 parts of potassium dihydrogen phosphate, and 70 parts of deionized water.

[0039] (3) Immerse the degummed asparagus fiber prepared in step (2) in 3 g / L acetic anhydride mixed with glacial acetic acid solution, raise the temperature to 50°C and keep warm for acetic acid esterification for 40...

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Abstract

The invention provides a preparation method of modified juncus effusus fiber. The preparation method of the modified juncus effusus fiber comprises the following steps: first, naturally airing fresh juncus effusus with high ripeness, then mechanically beating juncus effusus to remove impurities, impregnating juncus effusus in deionized water, ultrasonically removing impurities and softening juncus effusus, and obtaining preprocessed juncus effusus; afterwards, impregnating the preprocessed juncus effusus in degumming liquid, heating and ultrasonically processing juncus effusus, taking out juncus effusus, sufficiently washing juncus effusus with water, obtaining degummed juncus effusus fiber, subsequently, impregnating the degummed juncus effusus fiber in an acetic anhydride mixed modifying solution, raising the temperature to 50 DEG C, carrying out heat preservation, carrying out acetic esterification processing, taking out the juncus effusus fiber, sufficiently washing the juncus effusus fiber with ethanol and deionized water in sequence, drying the juncus effusus fiber, obtaining thejuncus effusus fiber subjected to acetic esterification, finally, impregnating the juncus effusus fiber subjected to the acetic esterification in a chitosan solution containing a coupling agent, taking out the juncus effusus fiber, sufficiently washing the juncus effusus fiber, drying the juncus effusus fiber, and obtaining the modified juncus effusus fiber.

Description

technical field [0001] The invention belongs to the technical field of textile materials, and in particular relates to a preparation method of modified asparagus fiber. Background technique [0002] Asparagus is a perennial herbaceous plant of Poaceae, which has excellent cold and shade tolerance, can grow in various types of soil, and has a wide range of applications. Asparagus fiber is stored in the leaves of asparagus. The mature asparagus contains more cellulose, which can form hemp-like fibers after being bundled. It has high strength, small elongation, high moisture regain, and moisture absorption. Compared with cellulose fibers such as cotton, the spinnability is poor due to the characteristics of fast wetness and thick fibers. Therefore, the current research on Asparagus is mainly focused on planting, papermaking and other processing, and the research in the field of textiles is still in its infancy. . [0003] Chinese patent CN 100357503C discloses a method for pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01C1/02
CPCD01C1/02
Inventor 王文庆
Owner TAIZHOU LAI & KE INTELLIGENT TECH CO LTD
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