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PTFE medical protective clothing fabric

A technology of PTFE and protective clothing, applied in the direction of protective clothing, protective equipment, clothing, etc., to achieve the effect of improving adhesion, improving processing convenience, and improving wearing performance

Active Publication Date: 2020-07-10
浙江赛迅环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although polyethylene has been modified to enhance moisture permeability, the above problems still occur after such a film is made into protective clothing

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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  • PTFE medical protective clothing fabric
  • PTFE medical protective clothing fabric
  • PTFE medical protective clothing fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0054] The difference between this embodiment and the first embodiment lies in that the preparation method of the stretched film layer 22 is different, and is obtained by the following method:

[0055] S1: Lubricating and mixing: Add aviation kerosene to PTFE micropowder and mix well;

[0056] S2: Sieving: sieving with a 20-mesh sieve;

[0057] S3: Modified mixing: add silicone oil and mix again;

[0058] S4: Extrusion: use an extruder to extrude the modified and mixed raw materials, the extrusion parameters are as follows, the extrusion speed is 10.3mm / min, the extrusion diameter is 15mm, the length-to-diameter ratio of the die is 32, and the cone angle is 35.6 °, compression ratio 140;

[0059] S5: Calendering: use a calender to calender the extruded raw material, and control the temperature of the pressing roller to 152°C during calendering to obtain a raw material tape;

[0060] S6: Removing aviation kerosene: drying the raw material belt for 18 hours at a temperature h...

Embodiment 3

[0073] The difference between this embodiment and the first embodiment lies in that the preparation method of the stretched film layer 22 is different, and is obtained by the following method:

[0074] S1: Lubricating and mixing: Add aviation kerosene to PTFE micropowder and mix well;

[0075] S2: Sieving: sieving with a 20-mesh sieve;

[0076] S3: Modified mixing: add silicone oil and mix again;

[0077] S4: Extrusion: use an extruder to extrude the modified and mixed raw materials, the extrusion parameters are as follows, the extrusion speed is 10.3mm / min, the extrusion diameter is 15mm, the length-to-diameter ratio of the die is 32, and the cone angle is 35.6 °, compression ratio 140;

[0078] S5: Calendering: use a calender to calender the extruded raw material, and control the temperature of the pressing roller to 152°C during calendering to obtain a raw material tape;

[0079] S6: Removing aviation kerosene: drying the raw material belt for 18 hours at a temperature h...

Embodiment 4

[0082] The difference between this embodiment and the first embodiment lies in that the preparation method of the stretched film layer 22 is different, and is obtained by the following method:

[0083] S1: Lubricating and mixing: Add aviation kerosene to PTFE micropowder and mix well;

[0084] S2: Sieving: sieving with a 20-mesh sieve;

[0085] S3: Modified mixing: add silicone oil and mix again;

[0086] S4: Extrusion: use an extruder to extrude the modified and mixed raw materials, the extrusion parameters are as follows, the extrusion speed is 10.3mm / min, the extrusion diameter is 15mm, the length-to-diameter ratio of the die is 32, and the cone angle is 35.6 °, compression ratio 140;

[0087] S5: Calendering: use a calender to calender the extruded raw material, and control the temperature of the pressing roller to 152°C during calendering to obtain a raw material tape;

[0088] S6: Removing aviation kerosene: drying the raw material belt for 18 hours at a temperature h...

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Abstract

The invention relates to a protective clothing fabric, in particular to a PTFE protective clothing fabric, and belongs to the technical field of protective fabrics. The PTFE medical protective clothing fabric comprises a fabric surface layer, a PTFE interlayer and a fabric inner layer, a first bonding part distributed in a point pressure mode is arranged between the fabric surface layer and the PTFE interlayer, and a second bonding part distributed in a point pressure mode is arranged between the fabric inner layer and the PTFE interlayer. A PTFE stretch film is adopted as an isolation protection material, and compared with other high polymer materials such as a polyethylene film, the moisture penetrability is remarkably improved and can reach 8000 g / m<2>*24h or above.

Description

technical field [0001] The invention relates to a protective clothing fabric, in particular to a PTFE protective clothing fabric, which belongs to the technical field of protective fabrics. Background technique [0002] There are many types of medical protective clothing, which require isolation. The isolation function is a layer of isolation film. Medical protective clothing in the prior art is usually made of polyethylene. This kind of protective clothing has a good barrier to microorganisms and is relatively cheap, but it has poor air permeability, and medical staff often get soaked after working for a long time, which seriously affects the comfort of medical staff and also affects the continuity of their work. [0003] The invention patent application with application number 201811346217.2 discloses a polyethylene waterproof see-through film and its preparation method. The water vapor transmission rate of the film reaches 3600g / m 2 *24h. Although polyethylene has be...

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): B32B27/36B32B27/02B32B27/12B32B5/02B32B27/32B32B9/02B32B9/04B32B7/14A41D31/12A41D31/14A41D31/02B29D7/01
CPCB32B5/024B32B5/022B32B5/26B32B27/322B32B27/12B32B7/14A41D31/125A41D31/145B29D7/01B32B2262/0284B32B2262/062B32B2307/724B32B2307/726B32B2437/00B32B2571/00B29K2027/18
Inventor 徐志梁罗文春徐掌平施亦斐
Owner 浙江赛迅环保科技有限公司