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Manufacturing method and special needling equipment for collagen fiber regenerated bark

A technology of collagen fiber and manufacturing method, which is applied in the field of manufacturing method of collagen fiber regenerated leather and its special acupuncture equipment, and can solve the problem that the non-woven needle punching process is not suitable for collagen fiber, the strength of the fiber web is not improved, and the fiber web is scratched And other problems, to achieve the effect of high reinforcement efficiency, stable performance, and not easy to break

Inactive Publication Date: 2013-08-07
JIANGYIN JUNHUA TEXTILE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the existing acupuncture equipment for acupuncture non-woven fabrics, the needles usually have four barbs, and the angle between the barbs and the needle handle is about 35 degrees; our company found that if the equipment is used for acupuncture The fiber net composed of collagen fibers is easy to be scratched by the barbs on the puncture needle, and the strength of the obtained fiber net is not only not improved but decreased
[0005] In view of the fact that the existing non-woven acupuncture process is not suitable for the production of collagen fiber regeneration skin, it is necessary to develop a processing technology suitable for collagen fiber regeneration skin acupuncture

Method used

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  • Manufacturing method and special needling equipment for collagen fiber regenerated bark
  • Manufacturing method and special needling equipment for collagen fiber regenerated bark
  • Manufacturing method and special needling equipment for collagen fiber regenerated bark

Examples

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Effect test

Embodiment 1

[0034] A kind of manufacture method of collagen fiber regenerated skin, its technological process comprises the following steps in sequence:

[0035] (1) Defibrilation: Extract collagen fibers from pig, sheep, and cowhide dermis, and obtain collagen fibers with an average length of 1-3 cm. Among them, pig, sheep, and cowhide are raw animal hides or scraps from tanning.

[0036] (2) Laying: Use a carding and laminating machine to evenly spread the obtained collagen fibers into a fiber web with a gram weight of 100-350 g / m2 at a speed of 30-35 m / min.

[0037] (3) Acupuncture: The laid fiber web is punctured front and back through a special needling machine to form a base fabric, and the needling density is 50-200 needles / square meter; among them, each needle of the special needling machine There are 1~3 barbs on it, and the angle between the barbs and the needle handle of the needle is 5~32°.

[0038] (4) Edge trimming, rolling, and packaging: after trimming the irregular and r...

Embodiment 2

[0042] The present invention is a kind of manufacturing method of collagen fiber regenerated skin, and its technological process comprises the following steps in sequence:

[0043] (1) Defibrilation: Extract collagen fibers from pig, sheep, and cowhide dermis, and obtain collagen fibers with an average length of 1-3 cm. Among them, pig, sheep, and cowhide are raw animal hides or scraps from tanning.

[0044] (2) Laying: Use a carding and laying machine to evenly spread the obtained collagen fibers into a fiber net with a gram weight of 100-150 grams per square meter, and then use an air-laid machine to evenly spread the obtained collagen fibers into a gram weight of 200-100 grams per square meter. For 350 g / m2 fiber web, the laying speed of carding and air-laying is 30~35 m / min.

[0045] (3) Acupuncture: The laid fiber web is punctured front and back through a special acupuncture unit to form a base fabric, and the acupuncture density is 50-200 needles / square meter; among them...

Embodiment 3

[0051] The present invention is a kind of manufacturing method of collagen fiber regenerated skin, and its technological process comprises the following steps in sequence:

[0052] (1) Defibrilation: Extract collagen fibers from pig, sheep, and cowhide dermis, and obtain collagen fibers with an average length of 1-3 cm. Among them, pig, sheep, and cowhide are raw animal hides or scraps from tanning.

[0053] (2) Laying: Use an air-laid machine to evenly mix the obtained collagen fibers with hot-melt adhesive fibers and spread them into fiber webs with a gram weight of 100-350 g / m2 at a speed of 30-35 m / min.

[0054] (3) Acupuncture: The laid fiber web is punctured front and back through a special acupuncture unit to form a base fabric, and the acupuncture density is 50-200 needles / square meter; among them, the special acupuncture unit consists of 5 specially-made The acupuncture machine is composed of 1~3 barbs on each needle of the special acupuncture machine, and the angle b...

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Abstract

The invention relates to a manufacturing method for collagen fiber regenerated bark, which comprises the steps of dissolving fiber, lapping, needling, cutting edge, rolling, packaging and the like in sequence, wherein the needling process is carried out in a special needling machine or a special needling machine unit; 1 to 3 hooked stabs are arranged on each pricking needle of the special needling machine; the included angle between each hooked stab and each pricking needle is 5 to 32 degrees; the pricking needle density is 50 to 200 pricking needles per square meter; 2 to 5 times of needling treatments of the fibre web are carried out during the needling process; the density of the needles is gradually improved in the needling process carried out in sequence; and needle handles of the pricking needles turn thinner in sequence. Compared with the prior art, the manufacturing method for collagen fiber regenerated bark, provided by the invention, has the advantages that the technology is simple; the equipment cost is low; and the gained regenerated bark is stable in property, high in strength, and is not easy to be damaged. The invention further relates to the special needling machine and the special needling machine unit used for manufacturing collagen fiber regenerated bark.

Description

technical field [0001] The invention relates to the field of production technology and equipment of nonwoven materials, in particular to a production method of collagen fiber regenerated skin and special acupuncture equipment. Background technique [0002] The leftovers of natural leather are very large. If they can be reused, especially processed into regenerated leather, considerable wealth will be generated, and at the same time, it will have positive significance for green energy conservation and environmental protection. At present, the methods of utilizing the leftovers of natural corium to process regenerated leather include: fragment bonding method, fiber bonding method and fiber stabbing method. Among them, the fragment bonding method refers to processing the corium into corium fragments and then bonding them into leather; the fiber bonding method refers to processing the corium into collagen fibers and then bonding them into leather, such as patents CN 100412263 C,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4266D04H1/46D04H1/488D04H1/485D04H18/02
Inventor 朱晓华
Owner JIANGYIN JUNHUA TEXTILE TECH
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