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Polylactic acid medical water-spraying non-woven material and its production process

A technology of non-woven materials and production processes, applied in the field of weaving, can solve the problems of non-degradable, non-renewable, less variety, etc.

Inactive Publication Date: 2005-12-21
河南新飘安高科股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current medical fabrics are generally made of natural-based fibers (such as cotton and wood fibers), and the other is non-renewable petroleum-based fiber fabrics. Although the former is renewable, there are few varieties, and the latter is neither renewable nor degradable, polluting the environment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Experimental program
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Embodiment Construction

[0004] Production technique of the present invention has following operation:

[0005] (1) Raw material preparation

[0006] (2) Opening and mixing

[0007] It is completed by the reciprocating plucking machine, automatic cotton mixing machine, multi-storage cotton box and fine opening machine. The above-mentioned equipment is the current equipment.

[0008] Process parameters: ambient humidity 80% ± 5%, fiber density 3 , the small pieces of fiber should be bundled to create conditions for carding into single fibers on the carding machine and laying them into a fiber web of a certain gram weight.

[0009] (3) combing

[0010] Carried out on a carding machine, the opened fibers are further opened, mixed and carded to form a uniform cotton web.

[0011] (4) laying net

[0012] Do it on a lapper.

[0013] (5) Drafting

[0014] The draft ratio is determined according to the output of the lapper and the quantitative requirements of the product.

[0015] (6) Spunlace reinforc...

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Abstract

The non-woven material is prepared from poly lactic acid fiber. The process includes: opening and mixing under the environment temperature of 80% + / - 5% and the fiber density is not more than 10kg / m3; carding step to make the opened fiber diffuse and uniformly mixed to form fiber net; net-laying step; water pricking solidifying step under the pre-wetting water pressure of 30 bar, the water pressure of the first water-pricking is 100bar, the water pressure of the second water-pricking is 110bar and the water pressure of the third water-pricking is 120bar; drying step under the temperature of 120-150 degree C. The said non-woven material is mainly used in medical material.

Description

technical field [0001] The invention belongs to a weaving method, in particular to a polylactic acid medical spunlace nonwoven material and a production process thereof. Background technique [0002] The current medical fabrics are generally made of natural-based fibers (such as cotton and wood fibers), and the other is non-renewable petroleum-based fiber fabrics. Although the former is renewable, there are few varieties, while the latter is neither renewable nor degradable, polluting the environment . Contents of the invention [0003] The technical problem to be solved in the present invention is to provide a polylactic acid medical spunlace nonwoven material and its production process. This material has the characteristics of no lint, no lint, good wear resistance, high strength and no pollution to the environment. The technical solution of the present invention is a polylactic acid medical spunlace nonwoven material, which is characterized in that the nonwoven materia...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/62
Inventor 王纪勇范向阳唐守星代伍茜
Owner 河南新飘安高科股份有限公司
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