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Preservation method of dried cocoons

A preservation method and cocoon technology, which is applied in silk fiber production, textiles and papermaking, mechanical treatment, etc., can solve the problems of being vulnerable to grain robbery and cocoon mildew, etc., to avoid high temperature drying, strong surface adsorption, and shape retention Effect

Inactive Publication Date: 2018-03-23
广西立盛茧丝绸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Dried silkworm cocoons are highly susceptible to severe damage from molds such as Aspergillus, Penicillium, and White Mold during storage and preservation, and they are easily propagated and spread in a humid environment, resulting in moldy silkworm cocoons; Susceptible to pests such as big grain robbers and cotton pink bollworms

Method used

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  • Preservation method of dried cocoons

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for preserving dry silkworm cocoons, comprising the following steps:

[0026] (1) Freeze the silkworm cocoons for 3 hours at -26°C, vacuumize to 10Pa, and dry until the water content of the silkworm cocoons is 10%; put the dried silkworm cocoons into a 0.10mm thick polyethylene film bag, And put the desiccant in the polyethylene film bag, and then tie the bag tightly;

[0027] (2) After the storage is treated with pyrethroid insecticides for disinsection, ventilate and dry, then control the temperature of the storage to be 20°C and the relative humidity to be 55%;

[0028] (3) Move the packaged dried silkworm cocoons into the storage warehouse treated in step (2). During the whole storage period, the temperature of the storage warehouse is controlled at 20° C. and the relative humidity is 55%, until the storage ends.

[0029] The desiccant is packaged in a breathable material packaging bag, and the desiccant is mixed by the following raw materials in parts by ...

Embodiment 2

[0032] A method for preserving dry silkworm cocoons, comprising the following steps:

[0033] (1) Freeze the silkworm cocoons for 4 hours at -18°C, vacuumize to 15Pa, and dry until the water content of the silkworm cocoons is 12%; put the dried silkworm cocoons into a 0.12mm thick polyethylene film bag, And put the desiccant in the polyethylene film bag, and then tie the bag tightly;

[0034] (2) After the storage is treated with pyrethroid insecticides for disinsection, ventilate and dry, then control the temperature of the storage to be 25°C and the relative humidity to be 60%;

[0035] (3) Move the packaged dried silkworm cocoons into the storage warehouse treated in step (2). During the whole storage period, the temperature of the storage warehouse is controlled at 25° C. and the relative humidity is 60%, until the storage ends.

[0036] The desiccant is packaged in a breathable material packaging bag, and the desiccant is mixed by the following raw materials in parts by ...

Embodiment 3

[0039] A method for preserving dry silkworm cocoons, comprising the following steps:

[0040] (1) After freezing the silkworm cocoons for 3 hours at -26°C, put the pre-frozen silkworm cocoons into a microwave vacuum drying oven, vacuumize to 5Pa, microwave frequency is 100MHz, and dry until the moisture content of the silkworm cocoons is 10%; Pack the dried silkworm cocoons into a 0.10mm thick polyethylene film bag, put desiccant in the polyethylene film bag, and then tie the bag tightly;

[0041] (2) After the storage is treated with pyrethroid insecticides for disinsection, ventilate and dry, then control the temperature of the storage to be 20°C and the relative humidity to be 55%;

[0042] (3) Move the packaged dried silkworm cocoons into the storage warehouse treated in step (2). During the whole storage period, the temperature of the storage warehouse is controlled at 20° C. and the relative humidity is 55%, until the storage ends.

[0043] The desiccant is packaged in ...

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Abstract

The invention discloses a preservation method of dried cocoons, comprising the steps of (1) loading dried cocoons in packaging bags, adding a drying agent into each packaging bag, and tying the packaging bags; (2) disinfesting a storage house with a disinfecting agent, ventilating for drying, and controlling the temperature of the storage house to 20-25 DEG C and relative humidity to 55-60%; (3) transferring the packaged dried cocoons to the treated storage house, and controlling the temperature of the storage house to 20-25 DEG C and relative humidity to 55-60% during the whole storage perioduntil the storage ends. The preservation method of dried cocoons has the advantages that the storage house is disinfested before preservation, the drying agent is used to perform moisture absorptionand drying to prevent bacteria and molds during preservation, the temperature and humidity of the storage house are strictly controlled, moisture damage, mold damage, denaturing and insect damage areeffectively prevented for the dried cocoons, the optimal quality of the dried cocoons is maintained, and material cocoons of good quality are provided for silk reeling.

Description

technical field [0001] The invention relates to the technical field of silkworm cocoon preservation, in particular to a method for preserving dried silkworm cocoons. Background technique [0002] Silkworm (Bombyx mori L.) has been domesticated in my country for more than 5,700 years. It belongs to the complete metamorphosis insect of Lepidoptera Bombyridae, and its generations include egg, larva, pupa and adult (moth). The larva spins silk and forms a cocoon in the later stage, and pupates in the cocoon, and the pupal period is about 15 days. Silkworm cocoons can be used to reel raw silk, which is an important raw material for silk spinning. Dried silkworm cocoons refer to fresh silkworm cocoons that have been dried to a specified dryness level, and can be packaged and stored in warehouses, and supplied to silk factories for continuous silk reeling. [0003] Dried silkworm cocoons are highly susceptible to severe damage from molds such as Aspergillus, Penicillium, and Whit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01B7/00
CPCD01B7/00
Inventor 潘大东李海凤谢卫芳覃冬兰
Owner 广西立盛茧丝绸有限公司
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