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A kind of ultra-thin polytetrafluoroethylene film fabric and its embossing process

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

Active Publication Date: 2016-06-22
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, a kind of ultra-thin polytetrafluoroethylene membrane fabric and its embossing process, its steps are as follows:

[0025] (1) Mixing: Fully mix Sichuan Chenguang 216G PTFE dispersion resin powder (standard specific gravity is 2.165) and ExxonMobil’s ISOPARK hydrocarbon extrusion aid in proportion, and let it stand at 55°C After 24 hours, a mass was formed.

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

[0027] (3) Pushing: Place the cylindrical billet on the pushing machine, and push it into a round bar of Φ18 under the condition of 55℃~60℃.

[0028] (4) Calendering: place the round bar on a calender, and calender it at 50°C to form an oil-containing base belt with a thickness of 140um.

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

[0030] (6) Longitudinal stretching: The degreased base tape is stretched lo...

Embodiment 2

[0036] Embodiment 2, a kind of ultra-thin polytetrafluoroethylene film fabric and its embossing process, its steps are as follows:

[0037] (1) Mixing: Fully mix Sichuan Chenguang 216G PTFE dispersion resin powder (standard specific gravity 2.165) and ExxonMobil’s ISOPARK hydrocarbon extrusion aid in proportion, and let stand at 70°C After 24 hours, a mass was formed.

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

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

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

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

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

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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 fabrics, in particular to an ultra-thin polytetrafluoroethylene film fabric and an embossing process thereof. 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, Many functions such as moisture permeability, but also hope to be beautiful and elegant, but the products on the existing market cannot reach the above functions. [0003] Expanded PTFE microporous membrane is a porous material formed by multi-directional stretching (i.e. expansion treatment), calendering, heat treatment and other processes. It is a flexible and elastic microporous material with high porosity and pore size distribution. Uniform membrane with sterilization and filt...

Claims

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Application Information

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Patent Type & Authority Patents(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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