Geotextile and method for manufacturing same

A technology of geotextiles and needle-punched non-woven fabrics, which is applied in the direction of non-woven fabrics, textiles, and papermaking. It can solve the problems that geotextiles cannot be explained by themselves, and achieve the effect of high quality, low impurity content, and large thickness

Inactive Publication Date: 2008-09-03
SHANGHAI NEW TECHTEXTILES
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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 propose a geotextile

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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  • Geotextile and method for manufacturing same
  • Geotextile and method for manufacturing same
  • Geotextile and method for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A geotextile made entirely of viscose fibers. Its manufacturing method comprises the following steps: opening, mixing, carding, web forming, web laying, needle punching, and roll forming; the above steps are carried out under normal humidity and normal temperature; The needling frequency is 450 times / min, the needling depth is 6.5mm, and the rolling speed is 2m / min; the second needling frequency is 550 times / min, the needling depth is 6.0mm, and the rolling speed is 2m / min ;The frequency of three acupuncture is 550 times / min, the depth of acupuncture is 3.5mm, and the speed of rolling is 2m / min.

Embodiment 2

[0021] A geotextile made entirely of viscose fibers. Its manufacturing method comprises the following steps: opening, mixing, carding, web forming, web laying, needle punching, and roll forming; the above steps are carried out under normal humidity and normal temperature; The needling frequency is 500 times / min, the needling depth is 7mm, and the rolling speed is 2.5 m / min; the second needling frequency is 600 times / min, the needling depth is 6.5 mm, and the rolling speed is 2.5 m / min; The three acupuncture frequency is 600 times / min, the acupuncture depth is 3.5mm, and the rolling speed is 2.5m / min.

Embodiment 3

[0023] A geotextile made entirely of viscose fibers. Its manufacturing method comprises the following steps: opening, mixing, carding, web forming, web laying, needle punching, and roll forming; the above steps are carried out under normal humidity and normal temperature; The needling frequency is 550 times / min, the needling depth is 7.5mm, and the rolling speed is 3m / min; the second needling frequency is 650 times / min, the needling depth is 7.0mm, and the rolling speed is 3m / min ; The frequency of three acupuncture sessions is 650 times / min, the depth of acupuncture is 4mm, and the speed of rolling is 3 m / min.

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 an earth work fabric, and also relates to the manufacturing method of the earth work fabric. An earth work fabric is characterized in that the earth work fabric is a needled non-woven which completely takes viscose fiber as the raw materials. The manufacturing method of the earth work fabric comprises the steps of: opening, mixing, carding, forming a web, paving the web, needling, lapping; the method is characterized in that: the steps are carried out at the normal moisture and normal temperature; the needling comprises pre-needling, secondary-needling, tertiary-needling, the frequency of pre-needling is 500+/-50 times/minute, the depth of pre-needling is 7mm+/-0.5, the lapping speed is 2-3metres/minute; the frequency of secondary-needling is 600+/-50 times/minute, the depth of pre-needling is 6.5mm+/-0.5, the lapping speed is 2-3metres/minute; the frequency of the tertiary-needling is 600+/-50 times/minute, the depth of pre-needling is 3.5-4mm, the lapping speed is 2-3metres/minute.

Description

technical field [0001] The invention relates to a geotextile, and also relates to a manufacturing method of the geotextile. Background technique [0002] The publication number is CN1814881A, and the Chinese invention patent application dated August 9, 2006 discloses a degradable regenerated cellulose fiber geotextile. The geotextile uses regenerated cellulose fibers as raw materials, and utilizes the characteristics of ordinary low-strength, low-wet modulus regenerated cellulose fibers and new high-strength, high-wet modulus regenerated cellulose fibers, as well as good biodegradability and common characteristics of ecological fibers. , used alone or in combination, processed into yarns, fabric structures and non-woven fabric structures with pure or blended geotextiles; and geotextiles with composite structures and composite structures composed of these materials. [0003] Most of the current geotextiles are made of polypropylene, polyester, nylon and viscose fibers. ), m...

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): D04H1/46D04H3/10D04H5/02D04H1/4258
Inventor 叶青包伟国付忠林
Owner SHANGHAI NEW TECHTEXTILES
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