CN216033021U - Dampproofing complex film and dampproofing wrapping bag - Google Patents
Dampproofing complex film and dampproofing wrapping bag Download PDFInfo
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- CN216033021U CN216033021U CN202023057115.4U CN202023057115U CN216033021U CN 216033021 U CN216033021 U CN 216033021U CN 202023057115 U CN202023057115 U CN 202023057115U CN 216033021 U CN216033021 U CN 216033021U
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Abstract
The utility model discloses a moisture-proof composite film which sequentially comprises a PET layer, a first glue layer, a first aluminum foil layer, a second glue layer, a nylon layer, a third glue layer and a moisture-absorbing resin layer from outside to inside. Further, a second aluminum foil layer and a fourth glue layer are arranged between the third glue layer and the moisture absorption resin layer; preferably, the moisture absorbent resin layer is a PE layer containing calcium oxide. The moisture-proof composite film has the advantages of good corrosion resistance, wear resistance, puncture resistance, moisture absorption, moisture resistance and isolation performance. The utility model also discloses a moisture-proof packaging bag, which is formed by heat-sealing or bonding two material layers through the edges of the two material layers, wherein one material layer is connected with a feeding head in a hot melting mode, each material layer at least comprises an outer material layer and an inner material layer, the outer material layer is the moisture-proof composite film, the inner material layer is a PE layer, a cavity for containing materials is formed between the two inner material layers, a feeding through hole is formed in the middle of the feeding head, and the feeding through hole is communicated with the cavity and the outer space.
Description
Technical Field
The utility model relates to the technical field of packaging materials and packaging bag manufacturing, in particular to a moisture-proof composite film and a moisture-proof packaging bag.
Background
Nowadays, when a common plastic packaging bag made of a plastic film is used for packaging materials with moisture-proof requirements, a drying agent needs to be placed in the packaging bag. The common plastic film is made of resin materials such as polyvinyl chloride, polyethylene, polypropylene, polystyrene and the like, has poor puncture resistance and certain air permeability, and cannot completely isolate external influence; in addition, the desiccant can cause pollution to the materials. Therefore, such packages made of conventional plastic films are not suitable for packaging materials with special requirements.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a moisture-proof composite film which has better corrosion resistance, abrasion resistance, puncture resistance, moisture absorption, moisture resistance and isolation performance; the packaging bag is suitable for being applied to packaging bags, and the storage life of materials can be prolonged.
In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides a dampproofing complex film, from outside to inside includes PET layer, first glue layer, first aluminium foil layer, second glue layer, nylon layer, third glue layer and moisture absorption resin layer in proper order.
Preferably, the moisture absorbent resin layer is a PE layer containing calcium oxide.
The thickness of the moisture-absorbent resin layer is preferably 50 to 100. mu.m.
Preferably the thickness of the PET layer is 5-12 μm; the thickness of the first glue layer is 3.5-5 μm; the thickness of the first aluminum foil layer is 6.5-12 μm; the thickness of the second glue layer is 3.5-5 μm, and the thickness of the nylon layer is 12-20 μm; the thickness of the third glue layer is 3.5-5 μm.
In a further improvement, a second aluminum foil layer and a fourth glue layer are further arranged between the third glue layer and the moisture absorption resin layer, the second aluminum foil layer is positioned between the third glue layer and the fourth glue layer, and the fourth glue layer is positioned between the second aluminum foil layer and the moisture absorption resin layer. The puncture resistance and the isolation performance of the composite film are further improved by additionally arranging the second aluminum foil layer.
Further preferably, the thickness of the second aluminum foil layer is 6.5 to 12 μm; the thickness of the fourth glue layer is 3.5-5 μm.
According to the utility model, the PET layer is arranged on the outer side of the first aluminum foil layer, the nylon layer is arranged on the inner side of the first aluminum foil layer to form the substrate layer, the puncture resistance and the isolation performance of the composite film are improved through the first aluminum foil layer, the first aluminum foil layer is protected through the oil resistance, fat resistance, dilute acid resistance, dilute alkali resistance, most solvent resistance and ultraviolet ray resistance of the PET layer, and then the wear resistance of the inner side of the substrate layer is improved through the wear resistance of the nylon layer. The base material layer formed in this way has better corrosion resistance, abrasion resistance, puncture resistance and isolation performance, and then the moisture absorption resin layer is arranged on the inner side of the base material layer, so that the whole composite film also has moisture absorption and moisture resistance. The packaging bag is suitable for being applied to packaging bags, and the storage life of materials can be prolonged.
The utility model also discloses a moisture-proof packaging bag, which is formed by heat-sealing or bonding two material layers through the edges of the two material layers, wherein a through hole is processed on one material layer, the edge of the through hole is connected with a feeding head made of plastic in a hot melting mode, each material layer at least comprises an outer material layer and an inner material layer, the outer material layer is the moisture-proof composite film, the inner material layer is a PE layer, a cavity for containing materials is formed between the inner material layers of the two material layers, a feeding through hole is arranged in the middle of the feeding head, and the feeding through hole is communicated with the cavity and the outer space.
In a further refinement, each material layer further comprises an intermediate material layer, the intermediate material layer being between the outer material layer and the inner material layer; the intermediate material layer is a moisture-absorbing resin layer. So as to further improve the moisture absorption performance of the packaging bag.
The thickness of the outer material layer is preferably 100-170 μm; the thickness of the intermediate material layer is 50-100 μm; the thickness of the inner material layer is 50-100 μm; the intermediate material layer is a PE layer containing calcium oxide.
Furthermore, the feeding head is provided with an external thread, the external thread is screwed with a plastic cover, and a sealing gasket is arranged between the plastic cover and the feeding head. So as to further improve the sealing performance of the packaging bag.
The outer material layer of the moisture-proof packaging bag adopts the moisture-proof composite film. The entire packaging bag also has good corrosion resistance, wear resistance, puncture resistance, moisture absorption, moisture resistance and isolation performance by utilizing the corrosion resistance, wear resistance, puncture resistance, moisture absorption, moisture resistance and isolation performance of the moisture-proof composite film. The packaging bag is convenient for packaging materials with special requirements, and the storage life of the materials can be prolonged.
On the other hand, the packaging bag has moisture absorption and moisture resistance, so that a drying agent does not need to be placed in the packaging bag, the risk of pollution to the packaging bag is reduced, and the risk of misuse or eating the drying agent is also reduced.
Drawings
FIG. 1 is a schematic cross-sectional structural view of a composite membrane of the present invention;
FIG. 2 is a schematic cross-sectional view of a first embodiment of the moisture resistant envelope of the present invention;
FIG. 3 is an enlarged view at A of FIG. 2;
FIG. 4 is a schematic cross-sectional view of a second embodiment of the moisture resistant envelope of the present invention;
fig. 5 is an enlarged view of fig. 4 at B.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 shows a moisture-proof composite film, which sequentially comprises a PET layer 1, a first glue layer 2, a first aluminum foil layer 3, a second glue layer 4, a nylon layer 5, a third glue layer 6, a second aluminum foil layer 7, a fourth glue layer 8 and a moisture-absorbing resin layer 9 from outside to inside.
The moisture absorption resin layer 9 is a PE layer containing calcium oxide, wherein the calcium oxide accounts for 50% and the PE accounts for 50% in the moisture absorption resin layer 9; the thickness of the moisture-absorbent resin layer 9 is 50 to 100 μm.
The thickness of the PET layer 1 is 5-12 μm; the thickness of the first glue layer 2 is 3.5-5 μm; the thickness of the first aluminum foil layer 3 is 6.5-12 μm; the thickness of the second glue layer 4 is 3.5-5 μm, and the thickness of the nylon layer 5 is 12-20 μm; the thickness of the third glue layer 6 is 3.5-5 μm; the thickness of the second aluminum foil layer 7 is 6.5-12 μm; the thickness of the fourth glue layer 8 is 3.5-5 μm.
The first glue layer 2, the second glue layer 4, the third glue layer 6 and the fourth glue layer 8 can adopt polyurethane adhesive layers.
The embodiment one, fig. 2, fig. 3 of dampproofing wrapping bag show, a dampproofing wrapping bag, by two material layers 10 through its edge heat-seal together, the edge of two material layers 10 also can be connected through glue bonding mode, processing has the through-hole on one of them material layer 10, the edge of through-hole links together through the hot melt mode with the feed head 20 that a plastic was made, and every material layer 10 includes outside material layer 1a and inboard material layer 2a, outside material layer 1a be above-mentioned dampproofing compound film embodiment dampproofing compound film, inboard material layer 2a is the PE layer, forms the cavity 40 that holds the material between the inboard material layer 2a of two material layers 10, and the centre of feed head 20 is equipped with feed through hole 201, and feed through hole 201 intercommunication cavity 40 and exterior space are equipped with the external screw thread on the feed head 20.
The thickness of the outer material layer 1a is 100-170 μm; the thickness of the inner material layer 2a is 50-100 μm.
In the embodiment, the material is filled through the feeding hole 201, and then the plastic cap 30 is screwed on the feeding head 20, and the sealing gasket 301 is further arranged between the plastic cap 30 and the feeding head 20. Moisture evaporated from the material passes through the inner material layer 2a made of PE material and is absorbed by the moisture absorbent resin layer in the outer material layer 1 a.
An embodiment two, fig. 4, fig. 5 of dampproofing wrapping bag are shown, a dampproofing wrapping bag, by two material layers 10 through its edge heat-seal or adopt glue to bond together, processing has the through-hole on one of them material layer 10, the edge of through-hole links together through the hot melt mode with the feed head 20 that a plastic was made, every material layer 10 includes outside material layer 1a, intermediate material layer 3a and inboard material layer 2a, outside material layer 1a be above-mentioned dampproofing compound film embodiment dampproofing compound film, inboard material layer 2a is the PE layer, forms the cavity 40 that holds the material between the inboard material layer 2a of two material layers 10, and the centre of feed head 20 is equipped with feed through hole 201, and feed through hole 201 intercommunication cavity 40 and exterior space are equipped with the external screw thread on the feed head 20.
The thickness of the outer material layer 1a is 100-170 μm; the thickness of the inner material layer 2a is 50-100 μm.
The intermediate material layer 3a is between the outer material layer 1a and the inner material layer 2 a; the intermediate material layer 3a is a PE layer containing calcium oxide, and the calcium oxide accounts for 50% and the PE accounts for 50% of the intermediate material layer 3 a.
The feeding head 20 is provided with an external thread, and a plastic cover 30 is screwed on the external thread. The plastic cap 30 and the feed head 20 are also provided with a gasket 301.
After the cavity 40 of this embodiment is filled with the material, the moisture volatilized from the material passes through the inner material layer 2a made of PE material and is absorbed by the intermediate material layer 3a, and after the intermediate material layer 3a is saturated by absorption, the moisture is further absorbed by the moisture absorbent resin layer in the outer material layer 1 a. The material is kept dry for a longer time.
While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (10)
1. A moisture resistant composite film characterized by: from outside to inside in proper order including PET layer, first glue layer, first aluminium foil layer, second glue layer, nylon layer, third glue layer and moisture absorption resin layer.
2. A moisture resistant composite film according to claim 1 wherein: the moisture absorption resin layer is a PE layer containing calcium oxide.
3. A moisture resistant composite film according to claim 1 wherein: the thickness of the moisture-absorbing resin layer is 50-100 μm.
4. A moisture resistant composite film according to claim 1 wherein: the thickness of the PET layer is 5-12 μm; the thickness of the first glue layer is 3.5-5 μm; the thickness of the first aluminum foil layer is 6.5-12 μm; the thickness of the second glue layer is 3.5-5 μm, and the thickness of the nylon layer is 12-20 μm; the thickness of the third glue layer is 3.5-5 μm.
5. A moisture barrier composite film according to any one of claims 1 to 4 wherein: and a second aluminum foil layer and a fourth glue layer are also arranged between the third glue layer and the moisture absorption resin layer, the second aluminum foil layer is positioned between the third glue layer and the fourth glue layer, and the fourth glue layer is positioned between the second aluminum foil layer and the moisture absorption resin layer.
6. A moisture resistant composite film according to claim 5 wherein: the thickness of the second aluminum foil layer is 6.5-12 μm; the thickness of the fourth glue layer is 3.5-5 μm.
7. A dampproofing wrapping bag which its characterized in that: the moisture-proof composite film is characterized in that two material layers are heat-sealed or bonded together through edges of the two material layers, a through hole is processed in one material layer, the edge of the through hole is connected with a feeding head made of plastic in a hot melting mode, each material layer at least comprises an outer material layer and an inner material layer, the outer material layer is the moisture-proof composite film as claimed in any one of claims 1 to 6, the inner material layer is a PE (polyethylene) layer, a cavity for containing materials is formed between the inner material layers of the two material layers, a feeding through hole is formed in the middle of the feeding head, and the feeding through hole is communicated with the cavity and an external space.
8. The moisture resistant package as defined in claim 7, wherein: each material layer further comprises an intermediate material layer, the intermediate material layer being between the outer material layer and the inner material layer; the intermediate material layer is a moisture-absorbing resin layer.
9. The moisture resistant package as defined in claim 8, wherein: the thickness of the outer material layer is 100-170 mu m; the thickness of the intermediate material layer is 50-100 μm; the thickness of the inner material layer is 50-100 μm; the intermediate material layer is a PE layer containing calcium oxide.
10. A moisture resistant packaging bag as claimed in any one of claims 7 to 9, wherein: the feeding head is provided with an external thread, the external thread is screwed with a plastic cover, and a sealing gasket is arranged between the plastic cover and the feeding head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023057115.4U CN216033021U (en) | 2020-12-17 | 2020-12-17 | Dampproofing complex film and dampproofing wrapping bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023057115.4U CN216033021U (en) | 2020-12-17 | 2020-12-17 | Dampproofing complex film and dampproofing wrapping bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216033021U true CN216033021U (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023057115.4U Active CN216033021U (en) | 2020-12-17 | 2020-12-17 | Dampproofing complex film and dampproofing wrapping bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216033021U (en) |
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- 2020-12-17 CN CN202023057115.4U patent/CN216033021U/en active Active
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