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Method for bleaching silkworm cocoons at low quality into quality ones

A process method and technology for bleaching cocoons, which are applied in silk production and degumming of silkworm cocoons, can solve the problem that inferior cocoons cannot produce water reeling, etc., and achieve the effect of improving utilization rate and increasing output.

Inactive Publication Date: 2005-02-23
王长清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the inferior cocoons of tussah cocoons cannot produce water-reeled silk, the present invention provides a process method for turning inferior cocoons into excellent bleached cocoons. Oily and waxy cocoon pulp, making bad cocoons into good cocoons capable of producing water-reeled silk

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] The process of turning inferior cocoons into excellent floating cocoons is to put 13,000 grains of inferior cocoons (about 750g in 1,000 grains of fiber) into a bucket filled with 150kg of water at a temperature of 22°C, and boil for 8 minutes , and then put 16.9kg of hydrogen peroxide, 2.1kg of soda ash, and 2.85kg of dilute sodium acid into the water in the barrel, and bleach for 70 minutes.

Embodiment 2

[0010] The process of turning inferior cocoons into excellent floating cocoons is to put 13,000 grains of inferior cocoons (1,000 grains of about 750g of fiber) into a bucket filled with 150kg of water at a temperature of 21°C, and boil for 7 minutes , and then put 3.8kg of hydrogen peroxide, 1.95kg of soda ash, and 2.1kg of dilute sodium acid into the water in the barrel, and bleach for 70 minutes.

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Abstract

A bleaching poor cocoons process is achieved by: putting 13,000 cocoons into a tank with 135-160L water at 21-22 deg.C for 7-8 minutes, adding oxydol 60-80kg, pure alkali 1.8-2.5kg, sodium selenate 2-3 kg to bleach for 60-80 minutes. The products are qualified by removing oily stains and wax to have relaxing degree like the cocoons at the first grade. It increases yields of high-grade products and use ratio of raw materials.

Description

(1) Technical field [0001] The invention relates to a method for producing silk, in particular to a process method for turning inferior cocoons into excellent bleached cocoons. (2) Background technology [0002] my country's silk has a long history and enjoys a good reputation in the world. It is the world's largest silk producer. With the development of sericulture production, my country's silk textiles sell well all over the world. In the current silk production process, cocoon bleaching is a must. Most of the industry regards the cocoon bleaching process as the "bottleneck" in the silk reeling process. The quality of the cocoon bleaching process is directly related to the quality of the product and the consumption of raw materials. It is a key link with greater technical difficulty. The purpose of cocoon bleaching is to make sericin absorb water and swell so that cocoon threads can be separated in an orderly manner. The purpose of silk production is to unwind the cocoon ...

Claims

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Application Information

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IPC IPC(8): D01B7/06D01C3/02
Inventor 王长清
Owner 王长清
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