CN210794267U - Aluminum foil film for sealing - Google Patents
Aluminum foil film for sealing Download PDFInfo
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- CN210794267U CN210794267U CN201921373083.3U CN201921373083U CN210794267U CN 210794267 U CN210794267 U CN 210794267U CN 201921373083 U CN201921373083 U CN 201921373083U CN 210794267 U CN210794267 U CN 210794267U
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- aluminum foil
- sealing
- ethylene copolymer
- foil film
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Abstract
The utility model discloses an aluminum foil film for sealing, which comprises an aluminum foil layer and an ethylene copolymer layer arranged on the inner surface of the aluminum foil layer; the ethylene copolymer layer is used for heat sealing and attaching with a product to be sealed. The beneficial effects of the utility model reside in that: the ethylene copolymer layer on the inner surface of the aluminum foil layer is thermoplastic, so that the specific product is sealed, the sealing stability is high, and the uncovering effect is good.
Description
Technical Field
The utility model relates to a sealed package technical field, concretely relates to be used for sealed aluminium foil membrane.
Background
In the sealing mode of the bottle mouth in the current market, the bottle mouth is mostly sealed by adopting a rotary sealing type bottle cap or a metal cap, so that the preservation time of the product is prolonged. However, the sealing mode has the defect of inconvenient operation and is not beneficial to opening.
The bottle mouth is sealed partly in addition to the film that has the coating hot melt adhesive, and the mode of adopting the coating hot melt adhesive is convenient for the bottle mouth and is opened, but hot melt adhesive film's heat-seal intensity is low and poor stability, mostly only is used for solid product like the sealed of tablet, to liquid product, the phenomenon of weeping gas leakage appears easily, and application scope is restricted.
Disclosure of Invention
The utility model provides an aluminium foil membrane for it is sealed can realize that the product easily takes off and the excellent effect of seal stability.
For realizing the above technical effect, the technical scheme of the utility model as follows:
an aluminum foil film for sealing comprises an aluminum foil layer and an ethylene copolymer layer arranged on the inner surface of the aluminum foil layer;
the ethylene copolymer layer is used for heat sealing and attaching with a product to be sealed.
Further, the ethylene copolymer layer is a single-layer or multi-layer co-extrusion layer.
Furthermore, the aluminum foil film also comprises a gloss oil layer arranged on the outer surface of the aluminum foil layer.
Further, the gloss oil layer includes a printed layer.
Further, the thickness of the aluminum foil layer is 20-100 μm.
Further, the thickness of the gloss oil layer is 0.5-3 μm.
Further, the thickness of the ethylene copolymer layer is 20-50 μm.
The beneficial effects of the utility model reside in that: the thermoplastic property of the ethylene copolymer layer on the inner surface of the aluminum foil layer is utilized to realize the sealing of specific products, the sealing stability is high, and the product is easy to tear off and has good effect.
Drawings
Fig. 1 is a structural diagram of an aluminum foil film according to an embodiment of the present invention.
The specific drawings are identified as follows: 1-aluminum foil layer, 2-ethylene copolymer layer and 3-gloss oil layer.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the embodiment.
The present embodiment provides an aluminum foil film for sealing, as shown in fig. 1, including an aluminum foil layer 1 and an ethylene copolymer layer 2 disposed on an inner surface of the aluminum foil layer 1;
the ethylene copolymer layer 2 is used for heat sealing and attaching with a product to be sealed.
The aluminum foil layer 1 in the aluminum foil film is used as a barrier layer, and the ethylene copolymer layer 2 is used as a heat sealing layer. Owing to the medium resistance, pollution resistance and other characteristics of the copolymer, the aluminum foil membrane can seal products such as solid, liquid, colloid and the like, and has wide application range. After the product is placed for a long time, the adhesive force attenuation is not obvious, and the adhesive stability is strong. In addition, because the inner surface of the aluminum foil layer 1 is provided with the ethylene copolymer layer 2, the unsealing temperature can be as low as 110 ℃, the requirement on heat sealing equipment is reduced, and the production cost is reduced.
In one embodiment, the ethylene copolymer layer 2 is an ethylene-acrylic acid ionic copolymer layer or an ethylene-acrylic ester copolymer layer or an ethylene-vinyl acetate copolymer layer. This embodiment may optionally be an ethylene acrylic acid ionic copolymer layer.
The components used for the ethylene copolymer layer 2 may be selected according to actual needs, in addition to the above-mentioned components, such as an ethylene-methacrylic acid copolymer layer, an ethylene-methacrylic acid ester copolymer layer, an ethylene-vinyl acetate copolymer layer, and an ethylene-vinyl alcohol copolymer layer, and are not limited herein.
In other embodiments, the ethylene copolymer layer 2 provided on the aluminum foil film may be a single-layer structure or a multi-layer co-extruded structure. When the ethylene copolymer layer 2 is of a multilayer co-extrusion structure, the structure comprises an effective heat-sealing layer and a filling layer, and the effective heat-sealing layer is heat-sealed with the bottle mouth. The filling layer is used for increasing the thickness of the aluminum foil film and reducing the adverse effect of heat sealing caused by uneven surface of the base material; on the other hand, the cost can be effectively reduced. The ratio of the effective heat-sealing layer to the filling layer in the ethylene copolymer layer 2 can be determined according to actual needs, and is not limited herein.
And extruding the ethylene copolymer layer 2 on the inner surface of the aluminum foil layer 1, and cooling and shaping to obtain the aluminum foil film product. The process has the advantages of convenient operation, high speed and low cost. In addition, the mode of the extrusion process is favorable for adjusting and controlling the thickness of the aluminum foil film, so that different requirements can be met.
The specific forming process is as follows: the ionic copolymer is plasticized and melted in an extruder, extruded by a flat head, pressed to the aluminum foil layer 1 between two rollers which are in close contact, and cooled and shaped to obtain the aluminum foil film product.
In one embodiment, the aluminum foil film further comprises a gloss oil layer 3 arranged on the outer surface of the aluminum foil layer 1; the gloss oil layer 3 is mainly composed of acrylic resin and nitrocellulose. The gloss oil is used as a transparent protective layer, has very good wear resistance and other properties, is not easy to scratch, and plays a good role in protecting the aluminum foil layer 1.
Specifically, the varnish layer 3 is not limited to be composed of acrylic resin and nitrocellulose, and may include other substances, which are not limited herein.
In addition, the varnish layer 3 includes a printed layer. Different patterns can be printed on the printing layer, so that the aesthetic feeling of the sealing structure is improved.
In one embodiment, the aluminum foil layer 1 has a thickness of 20-100 μm. The thickness of the aluminum foil layer 1 of the present embodiment may be selected to be 20 μm, 50 μm, or 90 μm. The proper thickness is convenient for the shaping operation of the aluminum foil film.
The thickness of the aluminum foil layer 1 is selected and can be determined according to the requirements of a specific product.
In one embodiment, the thickness of the ethylene copolymer layer 2 is 20-50 μm in order to improve the heat sealing effect of the ionic copolymer or facilitate the processing of the ionic copolymer with the aluminum foil layer 1. The thickness of the ethylene copolymer layer 2 of the present embodiment may be selected to be 20 μm, 35 μm, or 50 μm.
The thickness of the ethylene copolymer layer 2 is selected and can be determined according to the requirements of the specific product.
In one embodiment, the gloss oil layer 3 has a thickness of 0.5-3 μm. The thickness of the varnish layer 3 of this embodiment may be selected to be 2 μm.
In one embodiment, the process conditions for heat sealing the aluminum foil film and a specific product are further disclosed as follows:
when the aluminum foil film and the glass bottle are sealed, the heat sealing strength of the sealing structure is 15N/25mm under the conditions of heat sealing temperature of 100 ℃, heat sealing pressure of 2kg and heat sealing time of 1 s.
When the aluminum foil film is sealed with a PP bottle, the heat sealing strength of the sealing structure is 12N/15mm under the conditions of the heat sealing temperature of 160 ℃, the heat sealing pressure of 3kg and the heat sealing time of 1 s.
When the aluminum foil film is sealed with the plain iron, the heat sealing strength of the sealing structure is 30N/15mm under the conditions of the heat sealing temperature of 220 ℃, the heat sealing pressure of 3kg and the heat sealing time of 0.5 s.
The aluminum foil film can be applied to the above-mentioned sealed products, and can also be sealed with products such as ceramic bottles and plastic bottles, and is not limited herein.
In the embodiment of the utility model, the sealing of the specific product can be realized by utilizing the thermoplasticity of the ethylene copolymer layer 2 arranged on the inner surface of the aluminum foil layer 1, and the sealing structure is easy to open, strong in stability and wide in application range; the surface of aluminium foil layer 1 is equipped with gloss oil layer 3, and gloss oil layer 3 can avoid aluminium foil layer 1 to receive the scraping, plays the guard action to aluminium foil layer 1.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (5)
1. The aluminum foil film for sealing is characterized by comprising an aluminum foil layer, an ethylene copolymer layer extruded and arranged on the inner surface of the aluminum foil layer, and a gloss oil layer arranged on the outer surface of the aluminum foil layer;
the ethylene copolymer layer is a single-layer or multi-layer co-extrusion layer and is used for heat sealing and attaching with a product to be sealed.
2. The aluminum foil film for sealing as claimed in claim 1, wherein the varnish layer includes a printed layer.
3. The aluminum foil film for sealing as claimed in claim 1, wherein the aluminum foil layer has a thickness of 20-100 μm.
4. The aluminum foil film for sealing as claimed in claim 1 or 2, wherein the thickness of the varnish layer is 0.5-3 μm.
5. The aluminum foil film for sealing as claimed in claim 1, wherein the ethylene copolymer layer has a thickness of 20-50 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921373083.3U CN210794267U (en) | 2019-08-22 | 2019-08-22 | Aluminum foil film for sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921373083.3U CN210794267U (en) | 2019-08-22 | 2019-08-22 | Aluminum foil film for sealing |
Publications (1)
| Publication Number | Publication Date |
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| CN210794267U true CN210794267U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921373083.3U Active CN210794267U (en) | 2019-08-22 | 2019-08-22 | Aluminum foil film for sealing |
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| CN (1) | CN210794267U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114407453A (en) * | 2021-12-14 | 2022-04-29 | 江阴宝柏新型包装材料有限公司 | Low-temperature heat-sealing easy-cutting sealing film and preparation method thereof |
-
2019
- 2019-08-22 CN CN201921373083.3U patent/CN210794267U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114407453A (en) * | 2021-12-14 | 2022-04-29 | 江阴宝柏新型包装材料有限公司 | Low-temperature heat-sealing easy-cutting sealing film and preparation method thereof |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230711 Address after: No. 1, Yingshan North Road, Lilin Town, Zhongkai High tech Zone, Huizhou, Guangdong 516001 Patentee after: AMCO (Huizhou) new material technology Co.,Ltd. Address before: 516006 Ma Transition Huabao Industrial Zone, Zhongkai Science and Technology Avenue, Huihuan, Huizhou City, Guangdong Province Patentee before: Huizhou Alcan Packaging Propack Co.,Ltd. |