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Quadrilateral cross-section fiber, fabric and manufacturing method thereof

A quadrangular and fiber technology, which is applied in the manufacturing method of quadrangular fibers and the field of fabrics made of quadrangular fibers, can solve problems such as low tensile strength

Active Publication Date: 2012-03-21
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Two Japanese patents, JP2002-129444 and JP2003-183945, disclose a flat fiber and an airtight fabric made of the fiber, but the aforementioned fiber only has a relatively low tensile strength

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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  • Quadrilateral cross-section fiber, fabric and manufacturing method thereof
  • Quadrilateral cross-section fiber, fabric and manufacturing method thereof
  • Quadrilateral cross-section fiber, fabric and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1: Manufacture high air-tightness fabric with regular square fiber

[0043] Using the method of the present invention, the fiber raw material polyamide (Nylon 66; RV value 100) is put into the extruder, heated and melted at a temperature of 290° C., and extruded from the spinneret with a spinning capacity of 72 g / min. To form a melt filament with a quadrangular cross-section. The melt filaments pass through the cooling channel, which is a windless zone at 5 cm from the upper end. The cooling air channel is cooled with a cooling wind speed of 0.7m / sec, and oiled with a cluster oil nozzle with a dynamic friction coefficient of 0.35 (F / Uμd), and oiled at a distance of 150 cm from the outlet of the spinning nozzle, and the cooled The tow fibers are guided into the heated stretching rollers and stretched 5.0 times, the coiling tension range is controlled between 0.15g / d, and the coiling speed is 3200 meters per minute. The fiber strength of the fiber that is mad...

Embodiment 2

[0045] Embodiment two, make high airtightness fabric with the fiber of the present invention

[0046] Take the square fiber made in Example 1 to make a fabric to test its airtightness. Two fabrics with different weaving densities have warp and weft densities of 49 and 55 threads per inch, respectively. The first part of the experiment only studies the effect of the weft yarn density of regular square fibers on the air permeability; the second part studies the influence of using regular square fibers in both warp and weft directions on the airtightness of the fabric. The first part is to use the DuPont circular cross-section fiber as the warp yarn (commodity number: T725 420d / 68f M1V297), and the fiber obtained in embodiment one and the aforementioned DuPont circular cross-section fiber as the warp yarn are the weft yarns, so weaving the The material is composed of 50% round fibers and 50% square fibers, and its air permeability data is shown in Table 1. For the fabric densit...

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 provides a novel quadrilateral fiber and a manufacturing method thereof. The method comprises: heating and fusing thermoplastic material; extruding the heated and fused thermoplastic material from a spinning mouth, and injecting the material into filiform fluid after passing through a calm zone; cooling and solidifying the filiform fluid to form a quadrilateral filiform object; coiling the filiform object, and extending for processing to produce fiber with quadrilateral cross section. The fabric produced with the fiber of the invention has high gas tightness.

Description

[0001] This case is a divisional application of the previous application with the application number "20061011391741" and the invention title "tetragonal section fiber, fabric and its manufacturing method" technical field [0002] The present invention relates to a novel fiber, high-air-tightness fabric and its preparation method, especially a preparation method of quadrangular fiber and the fabric made from such quadrangular fiber. The present invention provides a fabric with high airtightness due to the close arrangement of quadrangular fibers. Background technique [0003] High-air-tightness fabrics are widely used in clothing, such as: waterproof, windproof and thermal fabrics; while industrial applications of high-airtightness fabrics include: leisure products, packaging materials, shoe materials, conveyor belts for transmission, automotive safety Airbags and other textiles. In general, the fibers used in high-air-tightness fabrics must be able to produce a high degree...

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 Patents(China)
IPC IPC(8): B60R21/16D01D5/253D03D15/00D03D1/02D04B1/14D04B21/00D03D15/283D03D15/37
Inventor 陈联泰萧凯仁郑淑蕙角志峰
Owner IND TECH RES INST