Biological degumming cocoon reelability method for China oak silkworm

A biological degumming and silkworm cocoon technology, which is applied in the field of biological degumming and unwinding of tussah silkworm cocoons, can solve the problems of high broken ends, unsatisfactory results, short filaments, etc., and achieve the effect of reducing production costs

Active Publication Date: 2013-06-05
中蚕(大连)生物科技发展有限公司
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  • Application Information

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Problems solved by technology

However, degumming by the above method, especially for tussah silk with low strength, is not ideal, and the silk is o...

Method used

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  • Biological degumming cocoon reelability method for China oak silkworm

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1 is used for the composite bacterial agent of tussah silkworm cocoon biological degumming and relaxing

[0023] Preparation of compound bacterial agent:

[0024] It is prepared by mixing the following components in equal parts: EM bacterium freeze-dried powder, Bacillus megaterium powder, Bacillus subtilis powder and Bacillus licheniformis powder. Among them, the freeze-dried powder of EM bacteria was purchased from Jiangsu Lvke Biotechnology Co., Ltd., and its main components are photosynthetic bacteria, Bacillus, lactic acid bacteria, nitrifying bacteria, actinomycetes, natto bacteria, etc., and the number of effective viable bacteria was ≥5×10 9 CFU / g; Bacillus megaterium powder was purchased from Jiangsu Lvke Biotechnology Co., Ltd., and the live bacteria content was ≥10×10 9 CFU / g; Bacillus subtilis powder and Bacillus licheniformis powder were purchased from Hubei Qiming Biological Engineering Co., Ltd., and the effective number of viable bacteria was 30...

Embodiment 2

[0025] The biological degumming and relaxing process of the tussah cocoon of embodiment 2

[0026] The operation steps are as follows:

[0027] (1) Preparation of silkworm cocoon fermentation broth: Dissolve 75g of the composite microbial agent prepared in Example 1 in 100kg of water, add 1kg of brown sugar and 0.25kg of EM ecological probiotic stock solution, and mix well to obtain silkworm cocoon fermentation broth.

[0028] Among them, the EM ecological probiotic stock solution was purchased from Beijing Zhongke Huinong Technology Service Center, and its main components were Saccharomyces cerevisiae and Lactobacillus casei, and the effective number of viable bacteria was ≥2×10 8 CFU / g.

[0029] (2) The first fermentation of tussah cocoons: Soak the tussah cocoons in the above-mentioned cocoon fermentation liquid (it is better to soak all the tussah cocoons in the fermentation liquid), and ferment in a sealed manner at 39°C for 8 days.

[0030] (3) Boiling: After the first...

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Abstract

The invention relates to a biological degumming cocoon reelability method for China oak silkworm. The degumming cocoon reelability of the China oak silkworm is performed through a step-by-step microbial fermentation method, and the method comprises the following steps: (1) dissolving a composite fungicide special for biological degumming cocoon reelability of the China oak silkworm in water, adding brown sugar and EM ecological probiotics stock solution, and uniformly mixing to obtain the silkworm cocoon fermenting solution; (2) soaking the China oak silkworm in the fermenting solution for performing first fermentation; (3) taking out the China oak silkworm and dehydrating after the first fermentation, and boiling; (4) soaking the boiled China oak silkworm in the silkworm cocoon fermenting solution again, and performing second fermentation; and (5) taking out the China oak silkworm and dehydrating after the fermentation is ended, and washing and drying. The strength, elongation, cohesion, flexibility and other physical indexes of the China oak silkworm by employing the method are greatly improved, and the monofilament strength of the China oak silkworm is improved from the 3.4g/D in the original process to 3.55g/D in the process.

Description

technical field [0001] The invention relates to the fields of chemical engineering and biological fermentation, in particular to a method for biological degumming and unwinding of tussah cocoons. Background technique [0002] As an important textile material, silk has high requirements for its quality. In order to remove sericin, to show the unique luster and smoothness of silk, and to facilitate dyeing, people use different methods to degumming cocoons, including alkaline degumming, acid degumming, high temperature and high pressure degumming, etc. However, the degumming by the above method, especially the degumming of tussah silk with low strength, is not ideal, and the silk is often damaged, the silk is short, the broken end rate is high, and the color of the cocoon is lightened to a certain extent. Therefore, it is urgent to develop a new cocoon degumming and unwinding process, and determine the most suitable degumming agent and degumming conditions according to the fin...

Claims

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Application Information

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IPC IPC(8): D01C3/02
Inventor 屈清辉
Owner 中蚕(大连)生物科技发展有限公司
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