CN102774102A - Micro-ventilating membrane with air permeability changed with temperature and application for micro-ventilating membrane - Google Patents
Micro-ventilating membrane with air permeability changed with temperature and application for micro-ventilating membrane Download PDFInfo
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- CN102774102A CN102774102A CN2012102515906A CN201210251590A CN102774102A CN 102774102 A CN102774102 A CN 102774102A CN 2012102515906 A CN2012102515906 A CN 2012102515906A CN 201210251590 A CN201210251590 A CN 201210251590A CN 102774102 A CN102774102 A CN 102774102A
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Abstract
The invention discloses a micro-ventilating membrane with air permeability changed with a temperature and an application for the micro-ventilating membrane. The micro-ventilating membrane comprises a base cloth and a control layer covering at one side of the base cloth; and the material of the control layer is paraffin wax, bee wax or polyethylene wax with a smelting point of 40-68 DEG C. The micro-ventilating membrane with the air permeability changed with the temperature can be used for preparing a spontaneous-heating heat-preservation paste. The micro-ventilating membrane has the advantages that: air permeability is extremely great at a low temperature; and after the temperature is higher than a specific temperature (more than 68 DEG C), the air permeability is rapidly reduced. According to the micro-ventilating membrane with the air permeability changed with the temperature and the application for the micro-ventilating membrane, change of the air permeability can be randomly adjusted through adjusting the smelting point of the paraffin wax, so as to achieve any temperature in the temperature range. A performance of the spontaneous-heating heat-preservation paste is greatly improved and a application range of the spontaneous-heating heat-preservation paste is enlarged.
Description
Technical field
The present invention relates to a kind of little ventilated membrane, be specifically related to a kind of warming little ventilated membrane that sticks of spontaneous heating that is used for.
Background technology
Coat the heater that reduced iron powder is oxidized to mechanism with ventilated membrane,, be commonly called as warm baby like the warming subsides of the spontaneous heating of selling on the market; In use required temperature fast, longer duration, but temperature is moderate; Be generally 40-60 ℃, it is fast to play temperature, requires the air penetrability of ventilated membrane high; And longer duration, to continue temperature moderate, then requires the air penetrability of ventilated membrane can not be too high, so this is two contradictions.
Generally can only satisfy back one requirement at present, and in practical application, have under a lot of situation through reducing warm rate request, requirement should rise temperature soon again longer duration, to continue temperature moderate.Therefore, present product can not meet the demands, and need improve.
Summary of the invention
The purpose of this invention is to provide little ventilated membrane and application thereof that a kind of air penetrability changes with temperature, to overcome the above-mentioned defective that prior art exists.
Air penetrability of the present invention comprises base cloth and the key-course that is coated in said base cloth one side with little ventilated membrane that temperature changes;
The material of said base cloth is cotton, fiber crops or terylene, for nonwoven or woven cloth, does not have special demands; Be preferably the terylene spun laced fabric, specification is 80～120g/m
2Preferred specification is 100g/m
2
The material of said key-course is paraffin, beeswax or the Tissuemat E of 40～68 ℃ of fusing points;
The coating thickness of paraffin, beeswax or Tissuemat E is 0.02～0.3mm;
Preparation method of the present invention comprises the steps:
With paraffin, beeswax or Tissuemat E heating and melting, through the method for spraying, be coated on the base cloth then, cooling can obtain little ventilated membrane that described air penetrability changes with temperature then.
Principle of the present invention:
When the temperature of the fusing point that is lower than paraffin, beeswax or Tissuemat E, described paraffin, beeswax or Tissuemat E become the cured state of plate, with paraffin be full of cracks under the effect of external force, thereby the air penetrability of base cloth are improved; Otherwise when temperature was higher than the temperature of fusing point, paraffin melted, and liquid paraffin is full of the gap of fiber, thereby the air penetrability of nonwoven ventilated membrane is reduced.
Air penetrability of the present invention can be used for preparing the warming subsides of spontaneous heating with little ventilated membrane that temperature changes.
Advantage of the present invention is:
Under the low temperature (＜40 ℃), the air penetrability of this ventilated membrane is very big; But after specific temperature (＞68 ℃), the air penetrability of this new invention ventilated membrane rapidly down.The present invention can arbitrarily adjust the variation of air penetrability through the adjustment melting point of paraffin wax, reaches any temperature in the appeal temperature range.The performance of the warming subsides of spontaneous heating is improved greatly, the range of application of the warming subsides of spontaneous heating is enlarged.
Description of drawings
The structural representation of little ventilated membrane that Fig. 1 changes with temperature for air penetrability.
Fig. 2 is the air permeability Test Drawing.
The specific embodiment
Referring to Fig. 1, air permeability of the present invention comprises base cloth 1 and the key-course 2 that is coated in said base cloth 1 one sides with little ventilated membrane that temperature changes.
When temperature was lower than the temperature of material melting point of key-course 2, the material of key-course 2 became the cured state of plate, and the effect be full of cracks down with external force produces crack 3, thereby the air penetrability of base cloth 1 is improved.
Embodiment 1
The material of base cloth 1: terylene spun laced fabric (100g/m
2);
The material of key-course 2: fusing point is 40 ℃ a paraffin;
The preparation method:
With the heating paraffin fusion, through the method for spraying, be coated on the base cloth 1 then, coating thickness is 0.3mm, cooling can obtain little ventilated membrane that described air penetrability changes with temperature.
Adopt the method for Wang Yan formula air permeability regulation, JIS, JIS P 8117 detects, and the result sees Fig. 2.
Shown that by above-mentioned experimental data when temperature was lower than paraffin melting point, the air permeability value of film was little, both Air permenbility was stablized greatly.When temperature was higher than paraffin melting point, the air permeability value of film sharply increased, and both quantitative change was little thoroughly.So the present invention can make little ventilated membrane that air penetrability changes with temperature.
The definition of Wang Yan formula air permeability: 100 milliliters of (STP) air are under 0.01276 atmospheric pressure promotes, through film to be measured cross section 6.424cm
2The needed time.
Embodiment 2
The material of base cloth 1: terylene spun laced fabric (100g/m
2); The material of key-course 2: fusing point is 60 ℃ a paraffin;
With the heating paraffin fusion, be sprayed on then on the terylene spun laced fabric, coating thickness is 0.2mm; Cooling can obtain little ventilated membrane that described air permeability changes with temperature then.Adopt the method for Wang Yan formula air permeability regulation, JIS, JIS P8117 detects, and the result sees Fig. 2.
The definition of Wang Yan formula air permeability: 100 milliliters of air are under 0.01276 atmospheric pressure promotes, through film to be measured cross section 6.424cm
2The needed time (second).
Claims (5)
1. air penetrability is characterized in that with little ventilated membrane that temperature changes, and comprises base cloth (1) and is coated in the key-course (2) of said base cloth (1) one side;
The material of said key-course is paraffin, beeswax or the Tissuemat E of 40～68 ℃ of fusing points.
2. air penetrability according to claim 1 is characterized in that with little ventilated membrane that temperature changes the coating thickness of paraffin, beeswax or Tissuemat E is 0.02～0.3mm.
3. air penetrability according to claim 1 and 2 is characterized in that with little ventilated membrane that temperature changes the material of said base cloth is cotton, fiber crops or terylene, is nonwoven or woven cloth.
4. air penetrability according to claim 3 is characterized in that with little ventilated membrane that temperature changes the material of said base cloth is the terylene spun laced fabric, and specification is 80～120g/m
2
5. the application of the little ventilated membrane that changes with temperature according to each described air penetrability of claim 1～4 is characterized in that, is used to prepare the warming subsides of spontaneous heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102515906A CN102774102A (en) | 2012-07-19 | 2012-07-19 | Micro-ventilating membrane with air permeability changed with temperature and application for micro-ventilating membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102515906A CN102774102A (en) | 2012-07-19 | 2012-07-19 | Micro-ventilating membrane with air permeability changed with temperature and application for micro-ventilating membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102774102A true CN102774102A (en) | 2012-11-14 |
Family
ID=47119306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102515906A Pending CN102774102A (en) | 2012-07-19 | 2012-07-19 | Micro-ventilating membrane with air permeability changed with temperature and application for micro-ventilating membrane |
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| CN (1) | CN102774102A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109350349A (en) * | 2018-12-06 | 2019-02-19 | 广州国灸医疗科技有限公司 | A kind of heating pack and its preparation method and application |
| CN111569671A (en) * | 2020-04-17 | 2020-08-25 | 广东工业大学 | Oil-water separation filtering membrane with periphery sealed by wax and preparation method thereof |
| CN111836603A (en) * | 2018-03-08 | 2020-10-27 | 花王株式会社 | Warming appliance |
| CN113940809A (en) * | 2021-09-14 | 2022-01-18 | 湖南品六生物科技有限公司 | Simple sheet-type self-heating body and preparation method and application thereof |
| CN115152738A (en) * | 2022-08-04 | 2022-10-11 | 宁波海关技术中心 | Quick sealing piece propping agent for plant nematodes |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07304143A (en) * | 1994-05-13 | 1995-11-21 | Toppan Printing Co Ltd | Packing material |
| CN200966674Y (en) * | 2006-11-16 | 2007-10-31 | 曲兴志 | Beeswax sheet |
| CN201029980Y (en) * | 2007-05-07 | 2008-03-05 | 祖湘蒙 | Medicine cera foot therapeutic shoes |
| CN102579195A (en) * | 2012-03-19 | 2012-07-18 | 葛纪宏 | Novel mud and wax therapy application |
-
2012
- 2012-07-19 CN CN2012102515906A patent/CN102774102A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07304143A (en) * | 1994-05-13 | 1995-11-21 | Toppan Printing Co Ltd | Packing material |
| CN200966674Y (en) * | 2006-11-16 | 2007-10-31 | 曲兴志 | Beeswax sheet |
| CN201029980Y (en) * | 2007-05-07 | 2008-03-05 | 祖湘蒙 | Medicine cera foot therapeutic shoes |
| CN102579195A (en) * | 2012-03-19 | 2012-07-18 | 葛纪宏 | Novel mud and wax therapy application |
Non-Patent Citations (2)
| Title |
|---|
| 叶振生: "《蜂产品深加工技术》", 30 April 2003, article "蜂蜡", pages: 377-378 * |
| 钟友慎等: "《工业蜡及其配方》", 30 April 1988, article "聚乙烯蜡", pages: 52-53 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111836603A (en) * | 2018-03-08 | 2020-10-27 | 花王株式会社 | Warming appliance |
| CN109350349A (en) * | 2018-12-06 | 2019-02-19 | 广州国灸医疗科技有限公司 | A kind of heating pack and its preparation method and application |
| CN111569671A (en) * | 2020-04-17 | 2020-08-25 | 广东工业大学 | Oil-water separation filtering membrane with periphery sealed by wax and preparation method thereof |
| CN113940809A (en) * | 2021-09-14 | 2022-01-18 | 湖南品六生物科技有限公司 | Simple sheet-type self-heating body and preparation method and application thereof |
| CN115152738A (en) * | 2022-08-04 | 2022-10-11 | 宁波海关技术中心 | Quick sealing piece propping agent for plant nematodes |
| CN115152738B (en) * | 2022-08-04 | 2023-11-17 | 宁波海关技术中心 | Plant nematode quick-sealing propping agent |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121114 |