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Production process used for forming non-woven fabric

A production process, non-woven technology, applied in the direction of filament/thread forming, filament forming treatment, textile/flexible product manufacturing, etc. The number of defects, the effect of reducing adhesion

Active Publication Date: 2020-11-27
北自所(常州)科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the problem that the various materials in the hopper are difficult to mix uniformly and cause local defects on the non-woven fabric, the application provides a production process for forming non-woven fabrics

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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  • Production process used for forming non-woven fabric
  • Production process used for forming non-woven fabric
  • Production process used for forming non-woven fabric

Examples

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Embodiment Construction

[0050] The following is attached Figure 1-5 The application is described in further detail.

[0051] The embodiment of the present application discloses a production process for forming non-woven fabrics. refer to figure 1 and figure 2 , the production process includes the following steps:

[0052] Feeding: Send the sliced ​​polypropylene, additives, color masterbatch, and functional fibers into the crushing and stirring device 1 to crush them into raw materials with smaller particle sizes. Brightening agents, softeners and compatibilizers are selected as additives, and blue and green colors can be selected for masterbatches according to the design requirements of non-woven fabrics. 80 parts by mass of polypropylene, 30 parts by mass of polypropylene fiber, 30 parts by mass of polyester fiber, 30 parts by mass of carbon fiber, 30 parts by mass of nylon chemical fiber, and 30 parts by mass of viscose chemical fiber can be used to reinforce the formed non-woven The streng...

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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Abstract

The invention relates to a production process used for forming non-woven fabric, and relates to the technical field of non-woven fabric production. The production process comprises the following stepsof feeding, screw extrusion, metering, spinning, cooling, drafting, web forming, hot rolling and winding; in the feeding step, a smashing and stirring device is arranged for smashing, stirring, preheating and mixing a raw material; and in the cooling step, an air cooling device is arranged, and dry ice is used for cooling melt filaments. The production process used for forming the non-woven fabric has the effect that by fully smashing, stirring and mixing the raw material, a melt formed by melting the raw material is more uniform, so that the formed non-woven fabric is better in overall pulling resistance and tear resistance and less in local defects; and moreover, the pollution of external dust and impurities to the filaments can be reduced through the air cooling device and a mode of cooling the melt by the dry ice, and the disturbance of the cooling process to the filaments is reduced, so that the defects of flaws or local over-thickness on the non-woven fabric are reduced.

Description

technical field [0001] The application relates to the field of non-woven fabric production, in particular to a production process for forming non-woven fabrics. Background technique [0002] At present, non-woven fabrics, also known as non-woven fabrics, are composed of directional or random fibers. They are a new generation of environmentally friendly materials. Low price, recyclable and so on. Polypropylene (pp material) pellets are mostly used as raw materials, which are produced by continuous one-step process of high-temperature melting, spinning, laying, and hot-pressing coiling. It is called cloth because of its appearance and certain properties. [0003] In related technologies, the production process of non-woven fabrics is as follows: feeding→screw extrusion→spinning→drawing→web forming→hot rolling→winding→slitting→finished product, that is, the raw material is sucked into the hopper by the suction device from the suction bin , and then extruded into a melt by 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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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/544D04H1/541D01D1/06D01D1/09D01D5/08D01D5/088D01D13/00D01D13/02
CPCD04H1/544D04H1/541D01D1/065D01D5/08D01D5/088D01D1/09D01D13/00D01D13/02Y02P70/62
Inventor 杨步洋
Owner 北自所(常州)科技发展有限公司
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