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Method for producing long bagworm silk threads and production device therefor

A production device and a technology for the moth, which are applied in silk fiber production, silk reeling, and resistance to vector-borne diseases, etc., can solve problems such as difficulties, high production costs, and low quality, and achieve the effect of easy implementation.

Active Publication Date: 2020-02-04
NAT AGRI & FOOD RES ORG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the removal operation requires a lot of effort and cost, and as a result, the production cost becomes high.
In addition, it is difficult to completely remove the inclusions by the existing technology, and not only a small amount of leaflets are mixed in the final product, but also the silk is dyed light brown due to the pigment derived from the inclusions, etc., so it has to be reduced. quality product

Method used

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  • Method for producing long bagworm silk threads and production device therefor
  • Method for producing long bagworm silk threads and production device therefor
  • Method for producing long bagworm silk threads and production device therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0141]

[0142] (Purpose)

[0143] Through the production method of the long minion moth silk of the present invention, the scaffold silk of the minion moth is produced.

[0144] (method)

[0145] As the minion moth, the final instar larvae (n=50) of the minion moth collected from an orchard in Tsukuba City, Ibaraki Prefecture were used. The production device of the long minion moth silk uses the production device of the long minion moth silk of the present invention. The production unit uses approximately square metal cans. Above the plate-shaped member corresponding to the side surface of the metal can, there was a closed-loop line with a width of 1.7 mm and a circumference of 1.1 m as an edge portion with the line surface facing upward. Arrange 1 moth insect at the bottom of the container of this metal can. After confirming that the minion moths have arrived at the line, spinning around the line while spinning silk on the line, they are left for 2 days as they are (si...

Embodiment 2

[0154]

[0155] (Purpose)

[0156] Minotaur moths, by their nature, at least spin out scaffolding silk when they move. Therefore, as long as it moves on the line, continuous silk spinning will continue, which is equivalent to the length of the single fiber of the moth silk obtained in the present invention. Therefore, it has been verified that the production device of the long minion moth silk of the present invention can continuously spin silk for several hours.

[0157] (method)

[0158] As the minion moth, the final instar larvae (n=8) of the tea moth collected from trees on the site of the Comprehensive Research Institute for Agricultural and Food Industry Technology were used. The production setup uses a closed loop circuit with a width of 0.85 mm and a circumference of 235 mm in diameter stainless steel petri dish. After arranging the bottom of this stainless steel petri dish, one scorpion moth was placed, and the time from the time point when the scorpion scorpio...

Embodiment 3

[0166]

[0167] (Purpose)

[0168] Verify the mechanical properties of minomoth silk.

[0169] (method)

[0170] The silk moth silk uses the spinning fiber (double silk) before scouring. A part (n=9) of the spun fibers obtained after the recovery step of Example 1 was used as the scaffold yarn. In addition, as the nest thread, silk plucked from the innermost layer of the nest of the final-instar larvae of the moth moth (n=5) was used. Nest silk is a sample of approximately 30 mm obtained by cutting the nest of the moth moth by hand from the innermost surface.

[0171] Tensile tests were carried out using each minion silk, and the four mechanical properties of initial elastic modulus, breaking strength, breaking elongation, and toughness were evaluated. Here, the initial modulus of elasticity corresponds to a constant of proportionality in the deformation region that satisfies the proportional relationship between force and deformation when stretching a sample, that is, H...

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Abstract

The present invention addresses the problem of developing a method for producing bagworm silk threads that are long and are of a purity that does not include impurities such as pieces of leaves or twigs, and to develop a device for implementing this production method. The present invention provides a method for producing long bagworm silk threads, the method including: a spinning step in which thenest-holding leg parts of a bagworm are locked to a linear path which can lock the leg parts and has a width smaller than the left-right maximum leg opening width of the bagworm to be used, and spinning is continuously performed along the linear path; and a collecting step in which the long silk threads are collected from the linear path after the spinning step.

Description

technical field [0001] The present invention relates to a method for producing filaments derived from larvae of moths belonging to the family Psychidae (Psychidae), ie, filaments derived from Psychidae, a production device for the filaments, and the like. Background technique [0002] The silk constituting the cocoons of insects and the hair of mammals have been used as animal fibers for clothing and the like since ancient times. In particular, silk derived from silkworms (often referred to as "silk" in this specification), which is the larvae of the silkworm moth (Bombyx mori), has excellent moisture absorption and release properties, moisture retention, and heat retention, and has a unique luster and smooth skin feel. Valued as a premium natural material. [0003] However, there are animal fibers in nature that have properties comparable to or higher than those of silk. In recent years, in order to effectively utilize animal fibers having such excellent characteristics a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01B7/00A01K67/033
CPCD01B7/00A01K67/04A01K67/033D01B3/00D01B7/04
Inventor 龟田恒德吉冈太阳
Owner NAT AGRI & FOOD RES ORG
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