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Industrialized biological degumming technique for kenaf bast fiber

A biological degumming and industrialization technology, applied in the direction of bacterial retting, etc., can solve the problems of long degumming cycle, unstable fiber output and quality, etc., and achieve the effect of shortening the degumming cycle, stable product quality and small site occupation

Active Publication Date: 2011-01-12
INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI
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Problems solved by technology

However, because its essence is to use the mixed microorganisms in natural water or the strains obtained through artificial breeding and mutagenesis to ferment hemp under natural conditions, there are still long degumming cycles, unstable fiber yield and quality, etc. key issues

Method used

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  • Industrialized biological degumming technique for kenaf bast fiber
  • Industrialized biological degumming technique for kenaf bast fiber
  • Industrialized biological degumming technique for kenaf bast fiber

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Embodiment

[0046] The kenaf bast 400kg of the different varieties that the farmer buys from Zhejiang, Anhui, Henan and other kenaf production areas and places of production is carried out biological degumming, specifically comprises the following steps (see Figure 4 Process flow shown):

[0047] (1) Pretreatment of kenaf bast: the above-mentioned kenaf fiber unbundled, straightened and divided into hemp handles, each with a quality of 1kg, rolling the above-mentioned kenaf bast hemp handles; rolling When the kenaf bast is loose and the kenaf fibers are not damaged (easy to be infected by microorganisms), stop rolling, and then shake off most of the sundries (silt, hemp bones, petioles) attached to the kenaf bast , young shoots, miscellaneous bacteria and decayed tissues, etc.);

[0048] The above-mentioned rolling process can be used as figure 1 The roller rolling device shown is processed, including roller 1 (length is 240-480mm, diameter is 120-240mm), machine base 2 and driving dev...

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Abstract

The invention discloses a factory biologic degumming process of kenaf bast. The process comprises the following steps: firstly, rolling kenaf bast till the kenaf bast loosens without damaging kenaf fiber, and carrying out activation and augmentation treatment of Erwinia carotovora microbial agent to obtain bacterial suspension; diluting the bacterial suspension and then carrying out immersion vaccination or spraying vaccination of the kenaf bast; carrying out immersion fermentation or wet fermentation of the kenaf bast till the kenaf bast turns blue and transversely torn kenaf pieces are in anetwork structure; inactivating the fermented kenaf bast by hot water; and then, cleaning the kenaf bast by high-pressure water while rolling the kenaf bast till kenaf fiber is obtained. The degumming process has the advantages of short degumming cycle, low production cost, less investment, less land occupation, low labor intensity, environmental protection, no pollution, stable product quality, and the like.

Description

technical field [0001] The invention relates to a method for treating plant materials by using microorganisms, in particular to a process for treating kenaf bast and extracting kenaf fibers by using microorganisms. Background technique [0002] At present, natural water retting method is used to extract hemp fibers such as kenaf and jute at home and abroad, that is, "retting". Retting is the earliest method of extracting hemp fibers invented by humans, and it has a history of more than 2,600 years. It is to dry the mature hemp stalks for 1 to 2 days, then transport them to the vicinity of natural water bodies, tie them into rows, take stones and mud blocks on the spot, press them into the water, and retting them for a few days, ten days, or even dozens of days. Then pick up the processing process of tearing hemp, washing hemp, and drying hemp. The reason why this method can be followed for thousands of years is that it is suitable for individual operation and only requires...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01C1/04
Inventor 刘正初郑科段盛文彭源德冯湘沅成莉凤胡镇修张运雄
Owner INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI
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