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Tubular non-woven fabric and its preparation method

A non-woven fabric and tube-type technology, which is applied in the field of tube-type non-woven fabric and its preparation, to achieve the effect of improving cohesion and binding force and improving physical properties

Active Publication Date: 2021-09-21
江苏海普润水处理设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The support tube has brought a lot of workload to the preparation of the tubular membrane. There is no tubular non-woven fabric that can be directly used to coat the inner surface of the tubular membrane to simplify the process of the tubular membrane and improve the efficiency of the tubular membrane. membrane performance

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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  • Tubular non-woven fabric and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] 1) Opening and carding: on the outer surface of the tubular polyester net with a diameter of 25mm, weigh the fibers of the inner web layer, the fibers of the middle web layer and the fibers of the outer web layer according to the mass ratio of 4:3:3 , the fiber of the inner web layer (polyvinyl alcohol fiber, linear density 5dtex, length 20mm), middle fiber web layer fiber (polyester fiber, linear density 6dtex, length 30mm) and outer web layer fiber (polypropylene fiber , with a linear density of 10dtex and a length of 50mm) were respectively opened and carded into a tubular mesh to obtain the inner fiber web layer fiber web, the middle fiber web layer fiber web, and the outer fiber web layer fiber web;

[0052] 2) The first spunlace: use the spunlace machine to perform spunlace on the front and back of the inner fiber web layer fiber web, the middle fiber web layer fiber web and the outer fiber web layer fiber web prepared in step 1) (spunlace suction The negative pre...

Embodiment 2

[0058] 1) Opening and carding: on the outer surface of the tubular polyester mesh with a diameter of 12mm, weigh the fibers of the inner web layer, the fibers of the middle web layer and the fibers of the outer web layer according to the mass ratio of 4:4:2 , the inner web layer fiber (polyacrylonitrile fiber, linear density 4dtex, length 40mm), middle web layer fiber (polypropylene fiber, linear density 6dtex, length 30mm) and outer web layer fiber (polyester fiber , with a linear density of 3dtex and a length of 40mm) were respectively opened and carded into a tubular mesh to obtain the inner fiber mesh layer fiber mesh, the middle fiber mesh layer fiber mesh, and the outer fiber mesh layer fiber mesh;

[0059] 2) The first spunlace: use the spunlace machine to perform spunlace on the front and back of the inner fiber web layer fiber web, the middle fiber web layer fiber web and the outer fiber web layer fiber web prepared in step 1) (spunlace suction The negative pressure i...

Embodiment 3

[0065] 1) Opening and carding: on the outer surface of the tubular polyester mesh with a diameter of 5mm, weigh the fibers of the inner web layer, the fibers of the middle web layer and the fibers of the outer web layer according to the mass ratio of 5:4:1 , the inner web layer fiber (polyester superfine fiber, linear density 0.3dtex, length 10mm), middle web layer fiber (polyester fiber, linear density 10dtex, length 40mm) and outer web layer fiber (polypropylene fiber, the linear density is 12dtex, and the length is 40mm) are respectively opened and carded into a tubular network, and the inner fiber network layer fiber network, the middle fiber network layer fiber network, and the outer fiber network layer fiber network are respectively obtained;

[0066] 2) The first spunlace: use the spunlace machine to perform spunlace on the front and back of the inner fiber web layer fiber web, the middle fiber web layer fiber web and the outer fiber web layer fiber web prepared in step ...

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Abstract

The invention discloses a tubular non-woven fabric, which is characterized in that it comprises an inner fiber web layer, a middle fiber web layer and an outer fiber web layer, and the inner fiber web layer, the middle fiber web layer and the outer fiber web layer are composed of an inner fiber web layer Set up in sequence to the outside and strengthen the connection through spunlace. Tubular non-woven fabrics were prepared through the processes of opening, carding, first spunlace, second spunlace, third spunlace, dipping or spraying dilute solution and heat setting. The invention adopts the method of combining spunlace with dipping or coating dilute solution to improve the cohesion and binding force between the layers of the tubular non-woven fabric. The outer diameter of the tubular non-woven fabric prepared by the present invention is 5-25 mm, which can be used to prepare tubular membranes, which solves the problem of using adhesives for the preparation of tubular supports in the process of preparing tubular membranes, and the gap between the layers of the supports. It is easy to peel off and cause the damage of the support body.

Description

technical field [0001] The invention relates to the technical field of textile engineering, in particular to a tubular nonwoven fabric and a preparation method thereof. Background technique [0002] Tubular membranes are widely used in electrophoretic paint coating production lines, fruit juice clarification, and oil field recharge water due to their advantages of wide flow channels, turbulent flow of feed liquid in the tube, low requirements for pretreatment accuracy of feed liquid, and easy cleaning. Treatment and sewage treatment and other projects. [0003] The existing domestic production process of tubular membrane is to make the support tube first, and the support tube is made of several layers of non-woven fabrics. Melt glue, during the rolling process, the non-woven fabric is heated to melt the hot-melt glue, and several layers of non-woven fabric are bonded together to form a non-woven fabric support tube. Then fix the support tube vertically, place a conical wei...

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 Patents(China)
IPC IPC(8): D06N3/00D06N3/04D06N3/06D06N3/12D04H1/4374D04H1/4382D04H1/492
CPCD04H1/4374D04H1/4382D04H1/492D06N3/0011D06N3/0013D06N3/0015D06N3/0034D06N3/0036D06N3/0038D06N3/0061D06N3/0077D06N3/04D06N3/047D06N3/06D06N3/12D06N2201/02D06N2201/045
Inventor 刘必前
Owner 江苏海普润水处理设备有限公司
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