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Method for producing non-woven fabric through gas stimulation

A non-woven fabric, air thorn technology, applied in non-woven fabrics, textiles and papermaking, etc., can solve the problems of inability to carry out large-scale production, difficult to be practically applied, etc., to improve the production environment, reduce water removal, and widen sources of raw materials Effect

Inactive Publication Date: 2019-11-15
SHENZHEN PURCOTTON TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to fill in the gaps in the prior art, overcome the defects and problems existing in the prior art that are difficult to be practically applied and unable to carry out large-scale production, and provide a method for producing nonwoven fabrics by air-punching that can be produced on a large scale

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Using natural color cotton as raw material, air-punching produces non-woven fabrics

[0057] The cotton is domestic Xinjiang non-"three-filament" cotton, the grade is grade 2 flower, the length grade is 28mm, the micronaire value is grade A, the non-woven fabric specification is that the fiber web design width is 3m, and the weight per unit area of ​​the fiber web is 18g / m 2 .

[0058] The equipment for producing non-woven materials by air puncture is: plucking machine, cotton opener, cotton blending machine, cotton cleaning machine, carding machine, web laying machine, trough impregnating machine, air thorn machine, dryer and winding machine. machine.

[0059] Cotton grabbing machine, also known as bale grabbing machine, is the first equipment, which is a machine for grabbing cotton fibers from cotton bales. In this embodiment, the plucking machine adopts a reciprocating plucking machine, generally using blades (or saw blades) beaters and ribs to grab cotton fibers f...

Embodiment 2

[0073] Replace the trough impregnation machine in Example 1 with spraying equipment, spray water evenly on the dry fiber web to form a wet web, and then transport it to the air-punched equipment, only need to set it above the clamping curtain that transports the fiber web For the water spraying device, a water recovery device can be installed under the clamping curtain. The wet web formed by spraying is then airpunched. The air pressure of the compressed air is 2.4MPa, the airflow ejected by the air-punching needle forms a vortex, and the distance between the air-punching needle and the wet fiber web is 8mm. Other steps are identical with embodiment 1.

Embodiment 3

[0075] Using raw cotton as raw material, on the basis of the steps in Example 1, degreasing and bleaching are carried out after air puncture, which is the post-bleaching process. The air pressure of the compressed air is 1.4MPa, the airflow ejected by the air-punching needle forms a turbulent flow, and the distance between the air-punching needle and the wet fiber web is 25mm. Other steps are identical with embodiment 1.

[0076] Degreasing: remove the wax or grease on the cotton fiber to enhance the water absorption of the product. This process is the same as the degreasing process in the prior art.

[0077] Bleaching: improve the whiteness of raw cotton fiber, this process is the same as the bleaching process in the prior art.

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Abstract

The invention belongs to the technical field of non-woven fabric production and manufacture, and particularly relates to a method for producing a non-woven fabric through gas stimulation. The method comprises the following steps of S1 carding, wherein carding is conduced on fiber raw materials, and a single-layer or multi-layer fiber web is formed; S2, web laying, wherein the fiber web is overlapped and spread, or the fiber obtained after carding is spread into the web through the airflow; S3, impregnating, wherein the fiber web is placed in a water tank for infiltration, or spraying, whereinwater is sprayed to the fiber web uniformly; S4, gas stimulation, wherein fibers in the fiber web are mutually entangled through airflow jet to form a cloth; S5, drying. Compared with spunlaced non-woven fabrics, the gas stimulation non-woven fabric does not need a large amount of high-pressure water except for a small amount of circulating water for the impregnated fiber web, special water treatment is not needed, energy conservation and environmental friendliness are better achieved, mechanical extrusion on the fiber web does not exist in gas stimulation production, and then the bulkiness ofa finished product is improved; the inherent softness of the fiber web is kept, the hand feeling is good, and the draping property is good.

Description

technical field [0001] The invention belongs to the technical field of production and manufacture of nonwoven fabrics, and in particular relates to a method for producing nonwoven fabrics by air punching. Background technique [0002] The concept of "jet spunlace" in the field of nonwovens comes from the mechanical needling process. The so-called "jet spray net" is to use high-pressure water to penetrate into the fiber net to make the fibers intertwined, so that the original loose fiber net has a certain strength and a complete structure. Its technological process is: fiber metering and mixing—opening and removing impurities—mechanical messy carding into a web—fiber web prewetting—water needle intertwining—surface treatment—drying—coiling—inspection—packaging and storage. The spunlace device uses high-speed flowing high-pressure water to spray the fiber web, so that the fibers in the fiber web are rearranged and entangled with each other to become a non-woven fabric with a ...

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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IPC IPC(8): D04H1/492
CPCD04H1/492
Inventor 李建全宋海波李建强唐黛周荣洪
Owner SHENZHEN PURCOTTON TECH
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