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Degumming process for kudzu vine

A process and degumming technology, which is applied in the degumming field of kudzu hemp, can solve the problems of high fiber damage rate and environmental pollution, and achieve the effect of overcoming large usage, soft hand feeling and strong application prospects

Inactive Publication Date: 2014-06-04
姜著川
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Problems solved by technology

[0010] The first purpose of the present invention is to provide a method for kudzu hemp low-temperature freezing-vacuum technology degumming for the problems of high fiber damage rate and serious environmental pollution in the current chemical degumming process

Method used

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Embodiment Construction

[0028] A low-temperature freezing-vacuum technology degumming method for Pueraria lobata, firstly using low-temperature vacuum technology to change the internal structure of raw hemp, forming a large number of micropores, making the internal structure of fiber macromolecules relax, and due to the weak structure between single fibers or fibrils It is destroyed to produce a split fiber and fibrillated structure, and a large number of microporous structures are also formed on the surface and inside of the fiber. Then use the vacuum negative pressure technology to fully inject the dilute lye and the low-concentration hydrogen peroxide solution into the fiber, and the vacuum low pressure opens the fiber structure of cellulose and hemicellulose, thereby increasing the surface area of ​​the fiber and making the lye perform the best effect . The method has the advantages of high degumming efficiency, low environmental pollution, short processing flow and the like. The degumming proces...

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Abstract

The invention provides a degumming process for a kudzu vine. Directed at the problems of a great usage amount of chemicals, a high fiber strength damage rate, severe environmental pollution and the like in conventional chemical degumming process, the invention provides a degumming method for the kudzu vine through low temperature refrigeration and vacuum technology. The process comprises the following steps: changing the interior structure of a raw kudzu vine by using low temperature vacuum technology so as to form considerable micropores, thereby increasing the surface area of a fiber; and then fully injecting dilute alkali lye and a low-concentration hydrogen peroxide solution into the interior of the fiber by using vacuum negative pressure technology so as to allow alkali lye and hydrogen peroxide to exert maximum efficacy. The process provided by the invention substantially reduces the usage amount of chemicals, shortens degumming flow and has a high gum and lignin removal rate and a low fiber damage rate.

Description

Technical field [0001] The invention relates to the technical field of hemp degumming, in particular to a method for degumming Pueraria lobata hemp by using low-temperature freezing and vacuum technology. Background technique [0002] Pueraria lobata, also known as Pueraria lobata, is a perennial vine with a long history and is distributed in most areas of China. In the past, it was mainly used for cage baskets, ropes or papermaking materials. In recent years, Pueraria lobata fiber has been used in carpet production, and its firmness, elasticity, and abrasion resistance have exceeded silk carpets, and it can also be woven into Gebu. Pueraria lobata fiber has strong toughness, single fiber is about 0.95 to 4.2 cm long and 0.01 to 0.02 cm wide. It is a good fiber plant. Compared with organic synthetic fiber, Pueraria lobata fiber has the advantages of low price, light weight, appropriate strength and modulus, etc. The key is that plant fiber is a renewable resource, green and non-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01C1/02
Inventor 姜著川
Owner 姜著川
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