Multi-layer fiber web and preparation method thereof

A fiber web and multi-level technology, which is applied in the field of nonwoven material preparation technology, can solve the problems of carded fiber web with single structure, insufficient functionality, and high equipment cost, so as to improve moisture conductivity, reduce the difference in vertical and horizontal diffusion speeds, and reduce costs. cheap effect

Active Publication Date: 2019-01-29
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing research and production, in order to solve the problem of single structure and insufficient functionality of carded fiber webs, most of them adopt two or more carding machine solutions, and then use multiple carding machines to output multi-layer fiber webs with differen

Method used

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  • Multi-layer fiber web and preparation method thereof
  • Multi-layer fiber web and preparation method thereof
  • Multi-layer fiber web and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0042] A method for preparing a multi-level fiber web, the steps are as follows:

[0043] Among them, the main cylinder machine includes main cylinder Ⅰ and main cylinder Ⅱ, both of which have the same structure; the full transfer roller includes full transfer roller Ⅰ and full transfer roller Ⅱ, both of which have the same structure; the high-speed random roller includes high-speed random roller Ⅰ and High-speed messy roller II, both of which have the same structure; agglomeration roller 1 includes agglomeration roller I-1 and agglomeration roller II-1, both of which have the same structure; agglomeration roller 2 includes agglomeration roller I-2 and agglomeration roller II-2, both of which have the same structure same.

[0044] Viscose fiber (1.67dtex, 38mm) and PET (3D, 38mm) are selected as raw materials; the process adopts opening-carding-mixing and then needling to fix the net, and the specific steps refer to the experimental method, in which the feeding machine is a po...

Embodiment 2

[0046] A method for preparing a multi-level fiber web, the steps are as follows:

[0047] Among them, the main cylinder machine includes main cylinder Ⅰ and main cylinder Ⅱ, both of which have the same structure; the full transfer roller includes full transfer roller Ⅰ and full transfer roller Ⅱ, both of which have the same structure; the high-speed random roller includes high-speed random roller Ⅰ and High-speed messy roller II, both of which have the same structure; agglomeration roller 1 includes agglomeration roller I-1 and agglomeration roller II-1, both of which have the same structure; agglomeration roller 2 includes agglomeration roller I-2 and agglomeration roller II-2, both of which have the same structure same.

[0048] Viscose fiber (1.67dtex, 38mm) and PET (3D, 38mm) are selected as raw materials; the process adopts opening-carding-mixing and then needling to fix the net, and the specific steps refer to the experimental method, in which the feeding machine is a po...

Embodiment 3

[0050] A method for preparing a multi-level fiber web, the steps are as follows:

[0051] Among them, the main cylinder machine includes main cylinder Ⅰ and main cylinder Ⅱ, both of which have the same structure; the full transfer roller includes full transfer roller Ⅰ and full transfer roller Ⅱ, both of which have the same structure; the high-speed random roller includes high-speed random roller Ⅰ and High-speed messy roller II, both of which have the same structure; agglomeration roller 1 includes agglomeration roller I-1 and agglomeration roller II-1, both of which have the same structure; agglomeration roller 2 includes agglomeration roller I-2 and agglomeration roller II-2, both of which have the same structure same.

[0052] Viscose fiber (1.67dtex, 38mm) and PET (3D, 38mm) are selected as raw materials; the process adopts opening-carding-mixing and then needling to fix the net, and the specific steps refer to the experimental method, in which the feeding machine is a po...

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Abstract

The invention belongs to the technical field of protection technologies for non-woven materials, and particularly relates to a multi-layer fiber web and a preparation method thereof. The multi-layer fiber web comprises an upper disordered layer, a smooth straight layer and a lower disordered layer from top to bottom in sequence, wherein the upper and lower disordered layers are characterized in that the included angles between the fiber length directions and the longitudinal direction are randomly distributed from -90 degrees to 90 degrees; the smooth straight layer is characterized in that the included angle between the fiber length direction and the longitudinal direction is -15-15 degrees, and the smooth straight layer comprises an upper smooth straight layer body and a lower smooth straight layer body. According to the prepared multi-layer fiber web, the two layers of fibers on the upper surface and the lower surface are disorderly arranged so that the difference between the vertical diffusion rate and the horizontal diffusion rate of liquid can be reduced while a certain vertical and horizontal force is ensured; the middle fibers are parallelly smoothly and straightly arranged, so that the horizontal diffusion rate of the liquid is high, and then the moisture transfer and retention performance is improved. The advantages can be fully given play to respectively, the defectscan be avoided respectively, and the fiber web which is good in safety and low in cost is obtained.

Description

technical field [0001] The invention belongs to the technical field of nonwoven material preparation technology, and in particular relates to a multi-level fiber web and a preparation method thereof. Background technique [0002] The dry-laid nonwoven material based on carding is a three-dimensional network porous fiber material mainly composed of short fibers. It has a fluffy structure and large fiber gaps, which is conducive to the rapid transmission of fluids, and has attracted attention from industry and academia. According to their different structures and properties, dry-laid nonwoven materials are widely used in medical and health (such as absorbent hygiene products for women and children), filtration (such as masks, coarse-effect air purifiers, etc.) and heat insulation and other fields. Currently recognized as an economical and practical fiber material. [0003] Most of the fibers in the fiber web obtained by carding are arranged parallel and straight, so there is ...

Claims

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Application Information

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IPC IPC(8): D04H1/4374D04H1/72D04H1/74D01G15/04
CPCD01G15/04D04H1/4374D04H1/72D04H1/74
Inventor 张恒甄琪刘雍张一风章伟邵庆国刘让同王苗苗
Owner ZHONGYUAN ENGINEERING COLLEGE
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