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Double-layer composite fabric and a production method and use thereof

A double-layer composite and composite fabric technology, applied in the direction of fabrics, multi-strand fabrics, textiles, and papermaking, can solve problems such as weave errors, fabric surface wrinkling, and weaving failure, and achieve low sliding friction coefficient and wear resistance The effect of long time and smooth appearance

Inactive Publication Date: 2017-02-15
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the double-layer fabric of this invention can be used under high-load conditions, and has the characteristics of small friction coefficient, high peel strength, and small force deformation, this invention increases the difficulty of fabric weaving. Unevenness can easily cause wrinkles on the surface of the fabric. At the same time, double-layer fabrics are generally high-density fabrics. During the weaving process, yarn breakage, yarn skipping, yarn knots, and weaving errors are prone to occur, resulting in a large number of fabric defects; warp, resulting in the inability to weave
In addition, there are many defects on the surface of the double-layer fabric, and the effective utilization rate of the fabric is reduced, resulting in an increase in cost

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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  • Double-layer composite fabric and a production method and use thereof

Examples

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Effect test

preparation example Construction

[0024](1) Preparation of fluorine filament fabric: the warp and weft yarns are warped and woven with fluorine filaments with a circular cross section to obtain a gray cloth, and then the gray cloth is scoured, washed, and heated at 100-120°C. Drying for 2 to 5 minutes, heat setting at 170 to 210°C for 2 to 5 minutes to obtain fluorine filament fabric;

[0025] (2) Preparation of other fiber fabrics: the warp and weft yarns are woven with other fibers with a fineness of 20-600 dtex to obtain a gray cloth, and then the gray cloth is scoured, washed, dried at 100-120°C for 2-5 minutes, and dried at 170°C. Heat setting at ~210°C for 2-5 minutes to prepare fabrics made of other fibers with a cover factor of 1500-2800;

[0026] (3) Preparation of double-layer composite fabric: The fluorine filament fabric prepared above is combined with other fiber fabrics by sewing or thermal bonding or ultrasonic bonding or adhesive bonding. During the adhesive bonding process, the pressure treat...

Embodiment 1

[0043] The warp and weft yarns are all made of PTFE filaments with a circular cross-section, a fineness of 440dtex, and 60 filaments. 2 / 1 twill gray fabric, the prepared gray fabric is refined, washed, dried at a temperature of 120°C for 2 minutes, and heat-set at 200°C for 2.5 minutes to obtain a PTFE twill fabric with a thickness of 0.21mm and a cover factor of 1800; The warp and weft yarns are all made of PET filaments with a fineness of 110dtex, and are woven on a rapier loom to obtain a gray cloth with a warp density of 86 threads / inch and a weft density of 86 threads / inch. Washing with water, drying at 120°C for 2 minutes, and heat setting at 200°C for 2.5 minutes to obtain a PET plain weave fabric with a thickness of 0.23mm and a cover factor of 1803. Then, the PTFE filament fabric and the PET filament fabric obtained above are sewed to form a double-layer composite fabric. The prepared double-layer composite fabric was subjected to humidity-conditioning treatment at a...

Embodiment 2

[0045] The warp and weft yarns are all made of PTFE filaments with a circular cross section, a fineness of 890dtex, and 90 filaments. Through warping and weaving, the warp yarn density is 75 yarns / inch, and the weft yarn density is 61 yarns / inch. 2 / 2 twill gray fabric, the prepared gray fabric is refined, washed, dried at 110°C for 3 minutes, and heat-set at 190°C for 3 minutes to obtain a PTFE twill fabric with a thickness of 0.28mm and a cover factor of 2275; The PPS filament with a fineness of 220dtex is adopted, and the PET filament with a fineness of 220dtex is used as the weft yarn, and is woven by a rapier loom to obtain a gray cloth with a warp density of 75 threads / inch and a weft density of 75 threads / inch. The prepared gray cloth was refined, washed, dried at 110°C for 3 minutes, and heat-set at 190°C for 3 minutes to obtain a PPS / PET interwoven plain weave fabric with a thickness of 0.27mm and a cover factor of 2225. Then, the PTFE filament fabric and the PPS / PET i...

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 double-layer composite fabric and a production method and use thereof. The composite fabric comprises a polytetrafluoroethylene filament fabric layer and an other fiber fabric layer. The warp yarn density of the polytetrafluoroethylene filament fabric layer is 70-360 / inch and the covering coefficient of the polytetrafluoroethylene filament fabric layer is 1500-2800; the average roughness of center lines of the surface of the polytetrafluoroethylene filament fabric layer is below 15[mu]m; the number of defects on the surface of the composite fabric is less than 30 every 100m<2>. The double-layer composite fabric has the advantages of fewer defects, low sliding friction coefficient, and durable wear resistance and the characteristics of simple process and low cost and can be applied to mechanical movement parts of sliding bearings.

Description

technical field [0001] The invention relates to a double-layer composite fabric and its production method and application. Background technique [0002] In recent years, with the rapid development of the machinery industry, self-lubricating materials containing fluorine have become the focus of attention in the application field of sliding materials, especially in places where it is impossible or difficult to refuel, self-lubricating materials have maintenance-free or reduced maintenance frequency specialty. With the development of technology, researchers have developed a method using pure polytetrafluoroethylene resin as the pressing surface, which is used in oil-free lubricated bearings. However, in actual use, due to the cold flow phenomenon of polytetrafluoroethylene resin under high load, irreversible deformation occurs after being subjected to external force for a long time, resulting in severe wear and even rupture of the sliding bearing during use. Phenomenon, grea...

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): D03D11/00D03D15/10D03D15/58
Inventor 贺俊淇纪舜卿张尤娟
Owner TORAY FIBER RES INST(CHINA) CO LTD
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