Total biological degradation nonwoven cloth for medical treatment/industry and preparing technique thereof

A biodegradation and production process technology, applied in paper/cardboard layered products, layered products, chemical instruments and methods, etc., can solve the problems of poor finishing, high cost of harmless waste treatment, and non-woven production costs. Advanced problems, to achieve the effect of low production cost, low cost characteristics, and strong use comfort

Inactive Publication Date: 2009-01-28
GRI MEDICAL & ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims to solve the problems of the existing disposable medical / industrial non-woven fabrics, such as high production cost, poor after-finishing property, and high cost of harmless disposal of waste after use.

Method used

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  • Total biological degradation nonwoven cloth for medical treatment/industry and preparing technique thereof
  • Total biological degradation nonwoven cloth for medical treatment/industry and preparing technique thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The fully biodegradable medical / industrial protective nonwoven fabric described in the present invention has a layered structure, including a wood pulp fiber layer and a spunlace nonwoven fabric base layer, and wood is compounded on one surface of the spunlace nonwoven fabric base layer. Pulp fiber layer.

[0015] The production process of the present invention is as follows: first make the dust-free paper from the wood pulp fiber, and make the PVA spunlace non-woven fabric from the PVA fiber, and then use the spunlace non-woven fabric production line to compound the dust-free paper on the PVA spunlace non-woven fabric. One side of the cloth is dried, trimmed, and rolled to obtain a finished product with an average grammage of 35-300 grams per square meter. The production process described is a single-sided composite process.

[0016] When producing dust-free paper, the amount of wood pulp fiber is controlled at 5-100 g / m2; when producing PVA non-woven fabrics, the amo...

Embodiment 2

[0019] The completely biodegradable medical / industrial protective non-woven fabric described in the present invention has a hierarchical structure, including a wood pulp fiber layer, a spunlace non-woven fabric base cloth layer, a wood pulp fiber layer, and two spunlace non-woven fabric base cloth layers. The surface is compounded with a wood pulp fiber layer.

[0020] The production process of the present invention is as follows: first make the dust-free paper from the wood pulp fiber, and make the PVA spunlace non-woven fabric from the PVA fiber, and then use the spunlace non-woven fabric production line to compound the dust-free paper on the PVA spunlace non-woven fabric. The two surfaces of the cloth are dried, trimmed and rolled to obtain the finished product, and the average gram weight of the finished product is 35-300 grams per square meter. The production process described is a double-sided composite process.

[0021] When producing dust-free paper, the amount of woo...

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Abstract

The invention relates to a complete biodegradable medical / industrial non-woven fabric which has a hierarchical structure and comprises a wood pulp fiber layer and a water-jetting non-woven base fabric layer, at least one surface of which is compounded with the wood pulp fiber layer. The production technology of the invention is: firstly the wood pulp fibers are made into dust-free paper and PVA fibers are made into PVA water-jetting non-woven base fabrics, then the water-jetting technology is adopted so that the dust-free paper is compounded on at least one face of the PVA water-jetting non-woven base fabric, and then final products are formed after drying, edge trimming and rolling-up. The non-woven fabric of the invention is characterized in that: the fabric is soft and moisture-permeable, strong sense of comfort when used, easy to carry out various after finishing processes, and low in production cost and has a good hydrophilic state and imbibing characteristic, so the non-woven fabric is a very suitable medical and industrial protection product.

Description

technical field [0001] The invention belongs to a medical and industrial protective product, in particular to a completely biodegradable non-woven fabric for medical / industrial protection and its production process. Background technique [0002] Existing as surgical gowns, covers, industrial protective clothing, etc., most of the fabrics are made of low-cost disposable materials such as non-degradable synthetic materials, non-woven fabrics, such as PP, PE, SMS, etc. The huge amount of waste generated after the use of these disposable materials has brought huge pressure to harmless treatment and incineration, and the processing cost is too high. Air pollution aggravates greenhouse gas emissions. Contents of the invention [0003] The purpose of the present invention is to design a completely biodegradable medical / industrial non-woven fabric and its production process. [0004] The invention aims to solve the problems of the existing disposable medical / industrial non-woven...

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): B32B5/02B32B29/02B32B7/08
Inventor 唐岷
Owner GRI MEDICAL & ELECTRONICS TECH CO LTD
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