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Ultrathin polytetrafluoroethylene membrane fabric and embossing technology thereof

A teflon film, teflon technology, applied in the direction of lamination, lamination device, lamination auxiliary operation, etc., to achieve the effect of light weight

Active Publication Date: 2015-02-04
HUZHOU SENNUO FLUORINE MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the improvement of people's living standards, people's requirements for quality of life are getting higher and higher. For example, people's requirements for sports and leisure clothing are not only comfortable to wear, light in weight, but also breathable, windproof, waterproof, UV-resistant, Moisture permeability and other functions, and at the same time, it is desired to be beautiful and generous, but the products on the existing market cannot meet the above functions

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, an ultra-thin polytetrafluoroethylene membrane fabric and its embossing process, the steps are as follows:

[0025] (1) Mixing: Mix Sichuan Chenguang 216G polytetrafluoroethylene dispersing resin powder (standard specific gravity is 2.165) and ExxonMobil's ISOPARK hydrocarbon extrusion aid in proportion, and let stand at 55℃ After 24 hours, the material is formed.

[0026] (2) Billet making: pre-press the material into a cylindrical billet of Φ120mm at 45℃.

[0027] (3) Pushing: Place the cylindrical billet on the pusher and push it into a Φ18 round bar at 55℃~60℃.

[0028] (4) Calendering: Place the round bar on the calender and calender it into an oil-containing base tape at 50°C with a thickness of 140um.

[0029] (5) Degreasing treatment: Degreasing the oil-containing base tape at 270°C and removing the extrusion aid to obtain a degreased base tape.

[0030] (6) Longitudinal stretching: the degreased base tape is first longitudinally stretched at 280°C, and the ...

Embodiment 2

[0036] Embodiment 2, an ultra-thin polytetrafluoroethylene membrane fabric and its embossing process, the steps are as follows:

[0037] (1) Mixing: Mix the PTFE dispersion resin powder of Sichuan Chenguang 216G (standard specific gravity is 2.165) and ExxonMobil's ISOPARK hydrocarbon extrusion aid in proportion, and let stand at 70℃ After 24 hours, the material is formed.

[0038] (2) Billet making: pre-press the material into a cylindrical billet of Φ120mm at 55℃.

[0039] (3) Pushing: Place the cylindrical billet on the pusher and push it into a Φ25mm round bar at 60°C.

[0040] (4) Calendering: Place the round bar on the calender and calender it into an oil-containing base tape at 50°C with a thickness of 180um.

[0041] (5) Degreasing treatment: Degreasing the oil-containing base tape at 280°C and removing the extrusion aid to obtain a degreased base tape.

[0042] (6) Longitudinal stretching: the degreased base tape is first longitudinally stretched at 300°C, and the stretching ra...

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Abstract

The invention relates to ultrathin polytetrafluoroethylene membrane fabric and an embossing technology thereof. The embossing technology comprises the steps of mixing materials; preparing blanks; pushing; calendaring; degreasing; carrying out longitudinal stretching; carrying out arc-shaped bi-directional stretching; carrying out transverse stretching; sintering for curing; applying the membrane by a release paper transferring method; gluing to shape the textile fabric; and carrying out the embossing technology. With the above steps, the prepared ultrathin embossed fabric can be applied in various fields such as f recreational sportwear and shoemaking. The thickness of the polytetrafluoroethylene microporous membrane is 2-5 [mu]m; the aperture is 0.5-2 [mu]m; and the porosity is higher than 80%. The ultrathin polytetrafluoroethylene membrane fabric has a plurality of functions of having beautiful appearance and light weight, shielding wind, expelling sweat, being waterproof and moisture permeable, preventing ultraviolet rays, preventing corrosion and keeping warm, and is suitable for a variety of products such as be used as functional materials for various sports, relaxation and women and children.

Description

Technical field: [0001] The invention relates to the field of cloth, more specifically to an ultra-thin polytetrafluoroethylene membrane fabric and its embossing process. Background technique: [0002] With the improvement of people’s living standards, people’s requirements for quality of life are getting higher and higher. For example, people’s requirements for sports and leisure clothing are not only comfortable to wear, light in weight, but also breathable, windproof, waterproof, UV-resistant, Various functions such as moisture permeability, but also want to be beautiful, but the existing products on the market can not achieve the above functions. [0003] Expanded polytetrafluoroethylene microporous membrane is a porous material formed by multi-directional stretching (expansion treatment), calendering, heat treatment and other processes. It is a flexible and elastic microporous material with high porosity and pore size distribution. Uniform, sterilizing and filtering functiona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/02B32B37/04B32B37/26B32B38/06B32B3/24B32B27/02B32B27/08B32B27/30B32B27/40A41D31/02B29D7/01B29C59/04B29K27/18
CPCA41D31/02B32B5/02B32B27/12B32B27/304B32B37/06B32B37/12B32B37/156B32B38/06B32B2262/0261B32B2307/30B32B2307/72B32B2307/724B32B2437/00
Inventor 王中华
Owner HUZHOU SENNUO FLUORINE MATERIAL TECH
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