CN202265032U - Waterproof and gas-permeable electromagnetic sealing film - Google Patents
Waterproof and gas-permeable electromagnetic sealing film Download PDFInfo
- Publication number
- CN202265032U CN202265032U CN2011203818432U CN201120381843U CN202265032U CN 202265032 U CN202265032 U CN 202265032U CN 2011203818432 U CN2011203818432 U CN 2011203818432U CN 201120381843 U CN201120381843 U CN 201120381843U CN 202265032 U CN202265032 U CN 202265032U
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- waterproof
- hot melt
- ventilated membrane
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Abstract
The utility model discloses a waterproof and gas-permeable electromagnetic sealing film capable of balancing pressures inside and outside a container after sealing. According to the waterproof and gas-permeable electromagnetic sealing film, a composite membrane is provided with a waterproof and gas-permeable film and a passage. After the electromagnetic sealing is carried out, spaces inside and outside the container are only separated by the waterproof and gas-permeable film at a waterproof and gas-permeable unit. Gas generated by a content can escape from the waterproof and gas-permeable film; the pressure intensities inside and outside the container are balanced; and a solid content and a liquid content are still closed in the container and are separated from external bacteria and bug dust. The waterproof and gas-permeable electromagnetic sealing film can be used for packing foods such as pickled vegetables, bean paste, glazed fruits, preserved fruits and the like; the dosage of a preservative can be reduced; the packing cost is decreased; and the packing reliability and the food safety are improved.
Description
Affiliated technical field
The utility model relates to a kind of device of closed container oral area, and the electromagnetism that especially can breathe freely seals film.
Background technology
At present, to seal film be to wait that by covering the compound film sheet that seals container finish constitutes to known electromagnetism.Compound film sheet comprises hot melt seal layer and aluminium pool layer at least.Electromagnetism seals film and is compressed in the oral area of waiting to seal container; When the external world applies alternating electromagnetic field, the aluminium pool will be responded to the formation eddy current and generate heat, and the container finish of hot melt seal layer and closed contact is linked together; Thereby reliable closed container oral area prevents content leaks or stolen dress.But, still can produce gas after the content sealing of a lot of container storage is arranged.And the existing film that seals all is sir-tight, and sealing solid is or/and also intercepted the inside and outside exchange gas of container liquid contents the time.When content produced gas, existing electromagnetism seals film can't the balance external and internal pressure, can cause container internal pressure excessive, makes seal of vessel inefficacy even explosion.
The utility model content
Seal the deficiency that film can not be breathed freely in order to overcome existing electromagnetism; The utility model provides a kind of waterproof and breathable electromagnetism to seal film; This waterproof and breathable electromagnetism seal film can not only be with solid or/and liquid contents is enclosed in the container, and can breathe freely and seal the pressure inside and outside the container of back with balance.
The utility model solves the technical scheme that its technical matters adopted: can cover and wait that the compound film sheet that seals container finish comprises hot melt seal layer and aluminium pool layer at least; It is characterized in that: at least one waterproof and breathable unit is set on compound film sheet; The waterproof and breathable unit is by the waterproof ventilated membrane of one deck tool microcellular structure and the passage of the no lateral leakage in heat-sealing back constitute at least; Heat-sealing back waterproof ventilated membrane seals with hot melt seal layer and passes through above-mentioned channel connection between the face, above-mentioned passage in the cross section of hot melt seal layer apart from hot melt seal ring more than at least 1 millimeter.Above-mentioned compound film sheet extruding contact is at container finish, and after the electromagnetic induction heat-sealing, at place, waterproof and breathable unit, the space is only isolated by the waterproof ventilated membrane and the container external space in the container.Waterproof ventilated membrane is distributed with the tortuous micropore of One's name is legion, can stop minimum drop and pressed powder to pass through, and see through a large amount of gases.When content in the electromagnetic induction leak free container produces gas, can overflow from the waterproof and breathable unit, thereby reach the purpose that electromagnetic induction seals the ventilative equalizing reservoir external and internal pressure in back and prevents content leaks.
The beneficial effect of the utility model is; Can be behind the electromagnetic induction airtight container; When preventing its content leaks, see through the inside and outside pressure of gas equilibrium container, avoid container to cause seal failure or explosion because of the content aerogenesis; Reduced to the excessive pharmaceutical chemicals that stops the content aerogenesis to add, can reduce the entire package cost.Be applied in the packaging for foodstuff, reduce the consumption of anti fouling composition, just mean the great food security that improved.Because the waterproof ventilated membrane of tool microcellular structure has the obstruct micronic dust simultaneously, the effect of bacterium, the utility model also can protect the content of container not by extraneous bacterial contamination.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the elevation profile constructional drawing that the waterproof and breathable electromagnetism seals first embodiment of film
Fig. 2 is that the solid that the waterproof and breathable electromagnetism seals first embodiment of film is disassembled scheme drawing
Fig. 3 is the elevation profile constructional drawing that the waterproof and breathable electromagnetism seals second embodiment of film
Fig. 4 is that the solid that the waterproof and breathable electromagnetism seals second embodiment of film is disassembled scheme drawing
1. waterproof ventilated membranes among the figure, 2. passage, 3. hot melt seal layer seals face, container finish 4. to be sealed, 5. hot melt seal layer, 6. aluminium pool layer, 7. insulation lining, 8. hot melt seal ring,
The specific embodiment
Fig. 1, embodiment illustrated in fig. 2 in, can cover the compound film sheet of waiting to seal container finish 4, order is stacked constitutes by hot melt seal layer 5, aluminium pool layer 6, insulation lining 7, waterproof ventilated membrane 1.Compound film sheet is provided with a waterproof and breathable unit, is made up of the waterproof ventilated membrane 1 of one deck tool microcellular structure and the passage 2 of the no lateral leakage in heat-sealing back.Passage 2 is cylindricality, is preferably cylindrical.Passage 2 connects hot melt seal layer 5, aluminium pool layer 6, insulation lining 7.Passage 2 more than 8 at least 1 millimeters, is preferably 6 millimeters apart from hot melt seal ring in the cross section of hot melt seal layer 5, when avoiding electromagnetic induction heat-sealable mouth, hot melt seal ring 8 and near material causes fracture because of temperature distortion.Waterproof ventilated membrane each material layer below 1 use can heat-resisting envelope temperature whole of long-acting viscose glue bonding, be honored as a queen to guarantee electromagnetic induction heat, waterproof ventilated membrane is the permanent connection of no radial gap between each material layer below 1.Thereby waterproof ventilated membrane 1 and hot melt seal layer are sealed between the face 3 to be communicated with through passage 2 after the heat-sealing.Insulation lining 7 is preferably the microporous foam polyethylene sheets more than 0.2 millimeter for the high molecular polymer of closed pore foaming.Insulation lining 7 when increasing hot melt seal layer 5 and waiting to seal the squeese pressure of container finish 4, the high-temperature damage waterproof ventilated membrane 1 in the time of can avoiding sealing.The spunbonded type polyolefin of the material selection tool microcellular structure of waterproof ventilated membrane 1.The material that container finish 4 adapts is selected and waited to seal to hot melt seal layer 5 for use.If container finish is a high molecular polymer, then select identical high molecular polymer film for use; If glass bottle opening is then selected the high molecular polymer film that is coated with hot melt glass glue for use.Do not cover any material layer in the present embodiment on the waterproof and breathable unit 1.Electromagnetic induction heat is honored as a queen, and gas can be overflowed through passage 2 and waterproof ventilated membrane 1 from container, and solid and liquid contents then are enclosed in the container by waterproof ventilated membrane.
In Fig. 3, another embodiment shown in Figure 4, can cover the compound film sheet of waiting to seal container finish 4, order is stacked constitutes by hot melt seal layer 5, aluminium pool layer 6, waterproof ventilated membrane 1, insulation lining 7.Waterproof ventilated membrane 1 can heat-resisting envelope temperature, the preferably polytetrafluoroethylene microporous barrier.Waterproof ventilated membrane uses whole connection of long-acting viscose glue of heat-resisting envelope temperature between each layer below 1, electromagnetic induction heat is honored as a queen, and is the permanent connection of no radial gap., waterproof ventilated membrane 1 is communicated with the no lateral leakage in passage 2 heat-sealing backs thereby being sealed between the face 3 with hot melt seal layer through passage 2.Two passages 2 connect hot melt seal layer (5), aluminium pool layer (6); Be the cylindricality that the cross section is a semicircle; In the cross section of hot melt seal layer 5 apart from hot melt seal ring 8 all more than at least 1 millimeter, when avoiding the electromagnetism heat sealing, hot melt seal ring 8 and near material causes fracture because of temperature distortion.Be the bonding temporarily of thermo-labile envelope temperature between waterproof ventilated membrane 1 and the insulation lining 7, insulation lining 7 is preferably the cardboard that can absorb the hot melt viscose glue, and the interim adhesive failure in heat-sealing back makes waterproof ventilated membrane 1 separate with insulation lining 7.Thereby guarantee not cover on the waterproof and breathable unit 1 any airtight and unseparated material layer after the heat-sealing.After the heat-sealing, if content produces gas, after passage 2 sees through waterproof ventilated membrane 1, can be between waterproof ventilated membrane 1 and the insulation lining 7, hot melt separates the slit of back formation overflows, and with the pressure inside and outside the equalizing reservoir, avoids seal of vessel inefficacy or explosion.
Claims (5)
1. a waterproof and breathable electromagnetism seals film; Constitute by the compound film sheet that can cover container finish to be sealed (4); Compound film sheet comprises hot melt seal layer (5) and aluminium pool layer (6) at least; It is characterized in that: at least one waterproof and breathable unit is set on compound film sheet; The waterproof and breathable unit is made up of the passage (2) of the no lateral leakage of waterproof ventilated membrane of one deck tool microcellular structure (1) at least and heat-sealing back, and waterproof ventilated membrane (1) seals between the face (3) with hot melt seal layer and is communicated with through passage (2) after the heat-sealing, passage (2) in the cross section of hot melt seal layer (5) apart from hot melt seal ring more than (8) at least 1 millimeters.
2. waterproof and breathable electromagnetism according to claim 1 seals film; It is characterized in that: compound film sheet is by hot melt seal layer (5), aluminium pool layer (6), insulation lining (7), the stacked formation of waterproof ventilated membrane (1) order; Passage (2) is cylindricality; Connect hot melt seal layer (5), aluminium pool layer (6), an insulation lining (7), and electromagnetic induction heat is honored as a queen, is the permanent connection of no radial gap between each material layer below the waterproof ventilated membrane (1).
3. waterproof and breathable electromagnetism according to claim 2 seals film, it is characterized in that: passage (2) is cylindrical.
4. waterproof and breathable electromagnetism according to claim 1 seals film; It is characterized in that: compound film sheet is by hot melt seal layer (5), aluminium pool layer (6), waterproof ventilated membrane (1), the stacked formation of insulation lining (7) order; Passage (2) is cylindricality, connects hot melt seal layer (5), aluminium pool layer (6), and waterproof ventilated membrane (1) can heat-resisting envelope temperature; And electromagnetic induction heat is honored as a queen; Being the permanent connection of no radial gap between each layer below the waterproof ventilated membrane (1), is the bonding temporarily of thermo-labile envelope temperature between waterproof ventilated membrane (1) and the insulation lining (7), and heat-sealing back adhesive failure makes waterproof ventilated membrane (1) separate with insulation lining (7).
5. waterproof and breathable electromagnetism according to claim 4 seals film, it is characterized in that: insulation lining (7) is a cardboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203818432U CN202265032U (en) | 2011-10-10 | 2011-10-10 | Waterproof and gas-permeable electromagnetic sealing film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203818432U CN202265032U (en) | 2011-10-10 | 2011-10-10 | Waterproof and gas-permeable electromagnetic sealing film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202265032U true CN202265032U (en) | 2012-06-06 |
Family
ID=46155840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203818432U Expired - Fee Related CN202265032U (en) | 2011-10-10 | 2011-10-10 | Waterproof and gas-permeable electromagnetic sealing film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202265032U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502063A (en) * | 2011-10-10 | 2012-06-20 | 杜斌 | Electromagnetic inductive anti-leakage breathable sealing film |
| CN106395157A (en) * | 2015-07-27 | 2017-02-15 | 康葵 | Food packaging container, packaging method and application of food packaging container |
| CN107397112A (en) * | 2016-05-18 | 2017-11-28 | 西北农林科技大学 | A kind of packaging using radio frequency sterilization irons method for processing surface |
| CN113753401A (en) * | 2020-06-05 | 2021-12-07 | 朗盛德国有限责任公司 | Cap with safety function against overpressure |
-
2011
- 2011-10-10 CN CN2011203818432U patent/CN202265032U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502063A (en) * | 2011-10-10 | 2012-06-20 | 杜斌 | Electromagnetic inductive anti-leakage breathable sealing film |
| CN106395157A (en) * | 2015-07-27 | 2017-02-15 | 康葵 | Food packaging container, packaging method and application of food packaging container |
| CN107397112A (en) * | 2016-05-18 | 2017-11-28 | 西北农林科技大学 | A kind of packaging using radio frequency sterilization irons method for processing surface |
| CN113753401A (en) * | 2020-06-05 | 2021-12-07 | 朗盛德国有限责任公司 | Cap with safety function against overpressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20141010 |
|
| EXPY | Termination of patent right or utility model |