Anti-expansion aluminum foil sealing gasket

Abstract

The utility model relates to the technical field of packaging, and provides an anti-expansion aluminum foil sealing gasket which comprises a gasket body, and the gasket body comprises a surface layer, an aluminum foil layer, a net-shaped film layer and a thin film layer which are sequentially arranged from top to bottom; the film layer is adhered to the bottle through the glue layer and covers the opening of the bottle. According to the anti-expansion aluminum foil sealing gasket, the situation that when fermented food exists in the sealing gasket in a sealing mode, bottle expansion occurs is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the packaging technical field, in particular to a kind of anti-expansion aluminum foil sealing gaskets. BACKGROUND

[0002] Bottled food needs to be sealed after processing, and sealing gaskets are usually used for sealing. The traditional bottle mouth sealing gasket includes a surface layer, an aluminum foil layer and a film layer connected in sequence. The film layer is pasted to the bottle mouth. The sealing gasket can achieve good sealing through the aluminum foil layer and the film layer. However, when the sealing gasket is used to seal the fermented food in the bottle, the bottle may expand, and in severe cases, the sealing may be damaged, resulting in product deterioration. CONTENT OF THE UTILITY MODEL

[0003] In order to reduce the expansion of the bottle when the sealing gasket is used to seal the fermented food in the bottle, the application provides an anti-expansion aluminum foil sealing gasket.

[0004] The anti-expansion aluminum foil sealing gasket provided by the application adopts the following technical scheme:

[0005] The anti-expansion aluminum foil sealing gasket includes a gasket body, which includes a surface layer, an aluminum foil layer, a mesh film layer and a film layer arranged in sequence from top to bottom. The film layer is pasted to the bottle by a glue layer and covers the bottle mouth.

[0006] By adopting the above technical scheme, the mesh film layer not only increases the flexibility and tensile strength of the gasket body, but also has a small mesh structure. These meshes play a buffering role when the gasket body is subjected to internal pressure of the bottle. When the gas pressure in the bottle rises, the mesh holes of the mesh film layer can slightly expand, releasing part of the pressure, thereby preventing the gasket from being broken due to excessive internal pressure, and achieving the anti-expansion effect.

[0007] Optionally, the mesh film layer is provided with two layers, and the mesh holes of the two layers are arranged in a staggered manner.

[0008] By adopting the above technical scheme, by arranging two layers of mesh film layers, the staggered mesh holes can support each other to form a stable protective barrier, effectively preventing the gasket body from being damaged or deformed due to pressure. Secondly, this design also enhances the air permeability and exhaust efficiency of the gasket body. The staggered arrangement of the mesh holes helps the gas to flow more smoothly inside the gasket, balances the pressure inside and outside the bottle, and thus reduces the risk of bottle expansion.

[0009] Optionally, a plurality of elastic support strips are arranged between the two mesh film layers, and gaps are formed between adjacent two elastic support strips.

[0010] By adopting the technical scheme, the elastic support strips arranged between the two net-shaped film layers can increase the overall structural stability of the gasket; the elastic support strips can ensure that the gasket body maintains its shape and sealing performance when subjected to external force or pressure change.

[0011] Optionally, an elastic layer is arranged between the net-shaped film layer and the aluminum foil layer.

[0012] By adopting the technical scheme, the elastic layer as an elastic material can provide additional elastic buffering when the pressure in the bottle changes. When the pressure in the bottle increases, the elastic layer can absorb and disperse the pressure, prevent the gasket from being broken or deformed due to excessive pressure, and help maintain the integrity and sealing performance of the gasket, thereby effectively preventing the bottle from expanding.

[0013] Optionally, an extension is integrally formed on one side of the gasket body, the surface layer is provided with a plurality of tearable holes, all the tearable holes are arranged at intervals around the bottle opening, and the tearable holes at the two ends are located at the connection between the extension and the gasket body.

[0014] By adopting the technical scheme, the user can easily tear the gasket along the path of the tearable hole by grabbing the extension without using additional tools, improving convenience.

[0015] Optionally, the extension is provided with a plurality of anti-slip convex points on the surface.

[0016] By adopting the technical scheme, the anti-slip convex points can increase the friction between the user's hand and the extension, improving the convenience of tearing the gasket body.

[0017] Optionally, the film layer is provided with a plurality of glue overflow holes, and all the glue overflow holes are arranged in a ring shape.

[0018] By adopting the technical scheme, the glue overflow holes allow the glue to penetrate between the net-shaped film layer and the aluminum foil layer during the gluing process, forming stronger adhesion, which helps to ensure the firmness of the gasket body on the bottle opening and prevent it from falling off due to external force or internal pressure.

[0019] Optionally, the surface layer away from the aluminum foil layer is coated with a waterproof coating.

[0020] By adopting the technical scheme, the waterproof coating can increase the waterproof effect of the surface layer and reduce the damage to the surface layer caused by water, so that the aluminum foil layer is exposed to the outside.

[0021] In summary, the present application has at least one of the following beneficial technical effects:

[0022] 1. By setting the mesh film layer, the flexibility and tensile strength of the gasket body can be increased, and the structure has a small mesh structure, which plays a buffering role when the gasket body is subjected to internal pressure of the bottle; when the gas pressure in the bottle rises, the mesh of the mesh film layer can expand slightly, releasing part of the pressure, thereby preventing the gasket from being broken due to excessive internal pressure, thereby achieving the effect of preventing expansion;

[0023] 2. By setting the glue overflow hole, the glue can penetrate between the mesh film layer and the aluminum foil layer during the gluing process, forming a stronger bonding force, which helps to ensure the firmness of the gasket body on the bottle mouth, preventing it from falling off due to external force or internal pressure. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a partial sectional view of example 1;

[0025] Figure 2 is a partial sectional view of example 2;

[0026] Figure 3 is a structural schematic view of the gasket body of example 2;

[0027] Figure 4 is a partial sectional view of example 3.

[0028] BRIEF DESCRIPTION OF DRAWINGS 1. Gasket body; 11, extension; 12, anti-skid bump; 2, surface layer; 21, waterproof coating; 22, easy-to-tear hole; 3, aluminum foil layer; 4, mesh film layer; 41, elastic support strip; 5, film layer; 51, glue overflow hole; 52, glue layer; 6, elastic layer. DETAILED DESCRIPTION

[0029] The following will be described in detail in combination with the accompanying Figures 1-4 The present application will be further described in detail.

[0030] Example 1:

[0031] The application discloses an anti-expansion aluminum foil sealing gasket.

[0032] Referring to Figure 1 An anti-expansion aluminum foil sealing gasket, comprising a gasket body 1, the gasket body 1 comprising a surface layer 2, an aluminum foil layer 3, a mesh film layer 4 and a film layer 5 arranged in turn from top to bottom, the film layer 5 is pasted and arranged with the bottle mouth of the bottle through the glue layer 52.

[0033] The surface layer 2 is made of paper material, which is used to provide good support effect for the gasket body 1, and the paper surface layer 2 has good printability, so that various patterns, characters and information can be printed conveniently. The surface layer 2 is coated with a waterproof coating 21, which is used to increase the waterproof performance of the surface layer 2 and reduce the case that the aluminum foil layer 3 is exposed to the outside due to damage of the surface layer 2 caused by water.

[0034] The aluminum foil layer 3 has good barrier effect, which can effectively prevent the penetration of gas and moisture, so as to reduce the possibility of product deterioration in the bottle.

[0035] In the embodiment, the elastic layer 6 is arranged between the aluminum foil layer 3 and the mesh film layer 4, which is made of silica gel material and has elasticity. When the food in the bottle produces gas, the elastic layer 6 can absorb and disperse the pressure, so as to reduce the case that the gasket body 1 is broken due to excessive pressure, thereby effectively preventing the occurrence of the bottle swelling phenomenon.

[0036] The mesh film layer 4 is made of polyester fiber, which not only increases the flexibility and tensile strength of the gasket body 1, but also has a small mesh structure. When the gasket body 1 is subjected to the pressure in the bottle, the mesh structure plays a buffering role. When the gas pressure in the bottle rises, the mesh of the mesh film layer 4 can expand slightly to release part of the pressure, thereby preventing the gasket from being broken due to excessive internal pressure, so as to achieve the anti-swelling effect.

[0037] The film layer 5 is made of polyethylene material, which is tightly attached to the bottle mouth and has good sealing performance, so as to reduce the possibility of food deterioration.

[0038] Embodiment 2:

[0039] The embodiment of the application discloses an anti-swelling aluminum foil sealing gasket.

[0040] With reference to Figure 2 and Figure 3 , the difference between the embodiment 2 and the embodiment 1 is that the gasket body 1 is integrally formed with an extension part 11 on one side, the extension part 11 is used for the user's hand to grab to open the bottle mouth, and the surface layer 2 is provided with a plurality of tearable holes 22, all the tearable holes 22 are arranged at intervals around the bottle mouth, and the tearable holes 22 at the two ends are located at the connection between the extension part 11 and the gasket body 1.

[0041] The surface of the extension part 11 is provided with a plurality of anti-slip convex points 12, and all the anti-slip convex points 12 are made of rubber material. By arranging the anti-slip convex points 12, the friction between the user's hand and the extension part 11 can be increased, and the convenience of tearing the gasket body 1 can be improved.

[0042] With reference to Figure 2In the embodiment, the mesh film layer 4 is provided with two groups, the mesh holes of the two groups of mesh film layers 4 are arranged in a staggered manner, and a plurality of elastic support strips 41 are arranged between the two groups of mesh film layers 4, and a gap is formed between two adjacent elastic support strips 41.

[0043] The implementation principle of the embodiment 2 of the application is as follows:

[0044] By arranging two layers of mesh film layers 4, the staggered arrangement of the mesh holes of the two layers of mesh film layers 4 helps the gas to flow more smoothly inside the gasket, balances the pressure inside and outside the bottle, and thus reduces the risk of the bottle swelling; and by arranging the elastic support strips 41, the structural stability of the gasket as a whole can be increased, and the shape and sealing performance of the gasket body 1 can be ensured when the gasket body 1 is subjected to external force or pressure change.

[0045] Embodiment 3

[0046] The embodiment of the application discloses a swelling-preventing aluminum foil sealing gasket.

[0047] With reference to Figure 4 The difference between the embodiment 3 and the embodiment 1 of the application is that the film layer 5 is provided with a plurality of glue overflow holes 51, and all the glue overflow holes 51 are arranged at intervals around the bottle opening; when the gasket body 1 is pasted on the surface of the bottle opening, the glue penetrates between the mesh film layer 4 and the aluminum foil layer 3 through the glue overflow holes 51 during the pasting process, forming stronger adhesive force, which helps to ensure the firmness of the gasket body 1 on the bottle opening and prevent it from falling off due to external force or internal pressure.

[0048] The above is the preferred embodiment of the application, which does not limit the protection scope of the application, so that: any equivalent change made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. An anti-bulging foil closure gasket, characterized by: The gasket body (1) comprises a surface layer (2), an aluminum foil layer (3), a mesh film layer (4) and a film layer (5) arranged in sequence from top to bottom.

2. The inflation-proof aluminum foil seal gasket according to claim 1, characterized in that: The mesh film layer (4) is provided with two layers, and the mesh holes of the two layers are arranged in a staggered manner.

3. The inflation-proof aluminum foil closure gasket according to claim 2, characterized in that: A plurality of elastic support strips (41) are arranged between the two mesh film layers (4), and a gap is formed between two adjacent elastic support strips (41).

4. The inflation-proof aluminum foil closure gasket according to claim 1, wherein: An elastic layer (6) is arranged between the mesh film layer (4) and the aluminum foil layer (3).

5. The inflation-proof aluminum foil closure gasket according to claim 1, wherein: An extension (11) is integrally formed on one side of the gasket body (1), the surface layer (2) is provided with a plurality of tear holes (22), all the tear holes (22) are arranged at intervals around the bottle opening, and the tear holes (22) at the two ends are located at the connection between the extension (11) and the gasket body (1).

6. The inflation resistant foil closure gasket of claim 5, wherein: The surface of the extension (11) is provided with a plurality of anti-skid convex points (12).

7. The inflation resistant foil gasket of claim 1, wherein: The film layer (5) is provided with a plurality of glue overflow holes (51), and all the glue overflow holes (51) are arranged in a ring shape.

8. The inflation resistant foil gasket of claim 1, wherein: The surface layer (2) is coated with a waterproof coating (21) on the side away from the aluminum foil layer (3).

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