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Method for manufacturing high-strength needling nonwoven geotextiles

A non-woven, geotextile technology, used in textiles and papermaking, fabric surface trimming, heating/cooling fabrics, etc., can solve problems such as low strength, easy deformation, and difficulty in strengthening

Inactive Publication Date: 2014-04-02
江苏苏豪不动产经营管理有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the short-fiber needle-punched nonwoven geotextiles produced by the prior art generally have the disadvantages of poor deformation resistance, easy deformation, and low strength, making it difficult to play a reinforcing role in use.

Method used

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  • Method for manufacturing high-strength needling nonwoven geotextiles
  • Method for manufacturing high-strength needling nonwoven geotextiles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] 1. Process flow

[0015] Fiber opening and mixing → carding (or airflow) into web → web laying → needle punching → heat setting → finished product winding.

[0016] Fiber opening and mixing: loosen the fiber raw materials to dissociate large fiber blocks and fiber clusters, so that the fibers can be evenly mixed;

[0017] Carding into a web: through a carding machine, the small cotton bundles that have been opened and mixed are combed into a thin web composed of single fibers;

[0018] Laying: Laying the thin fiber web carded by layer-by-layer carding machine through the web-laying machine to increase the surface density and thickness of the non-woven fabric product;

[0019] Acupuncture: The fiber web is repeatedly punctured by an acupuncture machine equipped with needles, so that the fibers in the fiber web are entangled with each other to form an acupuncture nonwoven fabric;

[0020] Heat setting: The heat setting method adopts hot air setting, and the non-woven fa...

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Abstract

The invention discloses a method for manufacturing high-strength needling nonwoven geotextiles. The method comprises the steps of loosening fibers, blending the fibers, carding the fibers into a mesh, spreading the mesh, needling the mesh, carrying out heat setting on the needled mesh and winding the finished product. According to the invention, a heat setting procedure is additionally increased in the traditional process for manufacturing staple fiber needling nonwoven geotextiles; residual stresses, which are accumulated within the fibers and the geotextiles and generated in the procedures of loosening the fibers, blending the fibers, carding the fibers into the mesh, spreading the mesh as well as needling and solidifying the mesh, are eliminated through heat setting treatment so that the knot strength between the fibers is enhanced and the physical mechanical performance of the geotextile is improved and enhanced; and simple and practical process is obtained.

Description

technical field [0001] The invention belongs to the textile field and relates to a method for manufacturing high-strength needle-punched nonwoven geotextiles. Background technique [0002] Geotextiles are textiles used in civil engineering. In the initial stage of application, geotextiles are mainly woven and woven geotextiles. With the continuous development of non-woven technology, due to the unique structure and excellent characteristics of non-woven fabrics, it has been rapidly developed and applied in the field of engineering. Among them, non-woven geotextiles mainly composed of short-fiber needle-punched non-woven fabrics are the current geotextiles. The main varieties, this type of product is one of the most widely used nonwoven geotextiles. Compared with woven and woven geotextiles, non-woven geotextiles have higher production efficiency, cheaper prices, good performance, and are especially easy to process into wide-width products, so they are developing rapidly. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/46D04H1/4291D04H1/435D06C7/02
Inventor 邓炳耀朱知辉张琰张彬
Owner 江苏苏豪不动产经营管理有限公司
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