A gasket for sealing a bottle cap which is easily removed

Abstract

The utility model discloses a kind of gasket for sealing bottle cap that degrease cleanly, it is related to gasket field, including gasket body, the one end of gasket body is equipped with auxiliary sealing ring, and gasket body includes contact layer, barrier layer, support layer, elastic buffer layer and additional layer.The gasket for sealing bottle cap that degrease cleanly of the utility model, by the contact layer being set, so that can directly contact content, need chemical inertness, food-grade safety, by the adhesive layer being set, contact layer and barrier layer can be connected, by the barrier layer being set, oxygen, water vapor and light can be blocked, by the elastic buffer layer being set, bottle mouth tolerance can be buffered, compensation sealing pressure, on the basis of original sealing, barrier, add antibacterial, wear-resistant and the characteristics of response, by the additional layer being set, the problem that traditional sealing gasket is prone to breed mould can be solved through antibacterial layer, through wear-resistant layer, bottle cap life can be extended.

Description

Technical Field

[0001] This utility model relates to the field of gaskets, and in particular to a gasket for sealing bottle caps that has been cleaned of adhesive residue. Background Technology

[0002] Gaskets are sealing components used in machinery, equipment, and pipelines—anywhere fluid is present—to provide a seal, both internally and externally. Gaskets are made from metal or non-metal sheet materials through processes such as cutting, stamping, or shearing. They are used for sealing connections between pipes and between machine parts. Based on material, they can be divided into metal gaskets and non-metal gaskets. Metal gaskets include copper gaskets, stainless steel gaskets, iron gaskets, and aluminum gaskets. Non-metal gaskets include asbestos gaskets, non-asbestos gaskets, paper gaskets, and rubber gaskets.

[0003] Sealing gaskets have a relatively simple function, mostly only serving to seal. When applied to bottle caps, they are not suitable for packaging that needs to be opened frequently, as friction can cause them to lose their sealing properties and they are also prone to the growth of microorganisms.

[0004] Therefore, it is necessary to propose a bottle cap sealing gasket that can be cleanly degummed to solve the above problems. Utility Model Content

[0005] The main purpose of this invention is to provide a bottle cap sealing gasket that can be cleanly degummed, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A bottle cap sealing gasket that has been thoroughly degummed includes a gasket body, one end of which is fitted with an auxiliary sealing ring. The gasket body includes a contact layer, a barrier layer, a support layer, an elastic buffer layer, and an additional layer.

[0008] Preferably, a release paper is fixedly connected to one end of the gasket body near the auxiliary sealing ring, and an adhesive layer is installed on one end of the auxiliary sealing ring near the release paper. The adhesive layer is pasted on the release paper, and the outer wall of the auxiliary sealing ring is provided with toothed holes. The adhesive layer is one of modified EVA and reactive polyurethane adhesive. The adhesive layer is used to firmly bond to the inner wall of the bottle cap and is resistant to high temperature and chemical corrosion.

[0009] Preferably, the material of the contact layer is one of food-grade silicone or foamed rubber, used to directly adhere to the bottle mouth, using elasticity to fill tiny gaps and achieve initial sealing.

[0010] Preferably, the barrier layer is one of EVOH and aluminum-coated film, and the barrier layer is used to block oxygen, water vapor and carbon dioxide, thereby extending the shelf life of the contents.

[0011] Preferably, the support layer is one of polypropylene and PET, and the barrier layer is used to provide rigid support for the gasket body to prevent the gasket from being deformed under pressure.

[0012] Preferably, the elastic buffer layer is one of thermoplastic polyurethane or rubber foam. The elastic buffer layer is used to absorb the impact force when the bottle cap is tightened and to compensate for the deformation caused by temperature changes. The additional layer includes an antibacterial layer, a wear-resistant layer, and a sensing layer. The antibacterial layer is a polymer containing silver ions and zinc ions. The antibacterial layer is used to inhibit the growth of microorganisms. The wear-resistant layer is one of polyoxymethylene or ceramic coating. The wear-resistant layer is used to increase the hardness of the gasket body surface and to prevent wear caused by repeated opening and closing. The sensing layer is one of thermochromic ink, wet-chromic ink, or RFID tag. The sensing layer is used to indicate the opening status and storage conditions.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This degummed bottle cap sealing gasket features an auxiliary sealing ring, which is larger than the gasket body. When the gasket body is installed in the bottle cap, it further enhances the tightness of contact with the inner wall of the bottle cap, ensuring its sealing performance. Simultaneously, the toothed holes facilitate the folding of the outer edge of the auxiliary sealing ring, making it easy to remove directly. This ensures its wide applicability. The adhesive layer and release paper facilitate the separation of the auxiliary sealing ring from the gasket body, further expanding the gasket body's usability in actual use.

[0015] 2. The degummed bottle cap sealing gasket, through its contact layer, allows direct contact with the contents and must be chemically inert and food-grade safe. Through its adhesive layer, it connects the contact layer and the barrier layer. Through its barrier layer, it blocks oxygen, water vapor, and light. Through its elastic buffer layer, it buffers bottle mouth tolerances and compensates for sealing pressure.

[0016] 3. This degummed bottle cap sealing gasket, in addition to its original sealing and barrier properties, adds antibacterial, wear-resistant and sensing characteristics. Through the added layers, the antibacterial layer can solve the problem of mold growth in traditional sealing gaskets, the wear-resistant layer can extend the life of the bottle cap, and the sensing layer can improve the intelligence of the bottle cap. It can be used in drug anti-counterfeiting or cold chain monitoring. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the auxiliary sealing ring of this utility model;

[0019] Figure 3 This is a cross-sectional view of the gasket body of this utility model.

[0020] In the diagram: 1. Gasket body; 2. Auxiliary sealing ring; 3. Toothed hole; 4. Adhesive layer; 5. Release paper; 6. Contact layer; 7. Barrier layer; 8. Support layer; 9. Elastic buffer layer; 10. Additional layer. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figures 1-3 As shown, a bottle cap sealing gasket with clean degummed adhesive includes a gasket body 1. An auxiliary sealing ring 2 is installed at one end of the gasket body 1. The gasket body 1 includes a contact layer 6, a barrier layer 7, a support layer 8, an elastic buffer layer 9, and an additional layer 10. Release paper 5 is fixedly connected to the end of the gasket body 1 near the auxiliary sealing ring 2. An adhesive layer 4 is installed at the end of the auxiliary sealing ring 2 near the release paper 5 and is adhered to the release paper 5. The outer wall of the auxiliary sealing ring 2 has toothed holes 3. The adhesive layer 4 is one of modified EVA or reactive polyurethane adhesive, used to firmly bond to the inner wall of the bottle cap, and is resistant to high temperatures and chemical corrosion. The contact layer 6 is made of one of food-grade silicone or foamed rubber, used to directly adhere to the bottle mouth, using elasticity to fill tiny gaps and achieve initial sealing. The barrier layer 7 is one of EVOH or aluminized film. The barrier layer 7 is used to block oxygen, water vapor, and carbon dioxide, extending the shelf life of the contents. The support layer 8 is made of polypropylene or PET. The barrier layer 7 provides rigid support for the gasket body 1 and prevents the gasket from deforming under pressure. The elastic buffer layer 9 is made of thermoplastic polyurethane or rubber foam. The elastic buffer layer 9 absorbs the impact force when the cap is tightened and compensates for deformation caused by temperature changes. The additional layer 10 includes an antibacterial layer, a wear-resistant layer, and a sensing layer. The antibacterial layer is a polymer containing silver ions and zinc ions. The antibacterial layer is used to inhibit the growth of microorganisms. The wear-resistant layer is made of polyoxymethylene or ceramic coating. The wear-resistant layer increases the surface hardness of the gasket body 1 and prevents wear caused by repeated opening and closing. The sensing layer is made of thermochromic ink, wet-chromic ink, or RFID tag. The sensing layer indicates the opening status and storage conditions.

[0023] The auxiliary sealing ring 2, being larger than the gasket body 1, further enhances the tightness of contact between the gasket body 1 and the inner wall of the bottle cap when the gasket body 1 is installed, ensuring its sealing performance. Simultaneously, the toothed holes 3 facilitate the folding of the outer edge of the auxiliary sealing ring 2 and its direct removal, thus ensuring its usability. The adhesive layer 4 and release paper 5 facilitate the separation of the auxiliary sealing ring 2 from the gasket body 1, further expanding the usability of the gasket body 1 in actual use. The contact layer 6 allows direct contact with the inner wall. The contents must be chemically inert and food-grade safe. The adhesive layer 4 connects the contact layer 6 and the barrier layer 7. The barrier layer 7 blocks oxygen, water vapor, and light. The elastic buffer layer 9 buffers the bottle mouth tolerance and compensates for sealing pressure. In addition to the original sealing and barrier properties, it adds antibacterial, wear-resistant, and sensing properties. The additional layer 10 solves the problem of mold growth in traditional sealing gaskets through the antibacterial layer. The wear-resistant layer extends the life of the bottle cap. The sensing layer improves the intelligence of the bottle cap. It can be used in drug anti-counterfeiting or cold chain monitoring.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A degummed bottle cap sealing gasket, comprising a gasket body (1), characterized in that: An auxiliary sealing ring (2) is installed at one end of the gasket body (1). The gasket body (1) includes a contact layer (6), a barrier layer (7), a support layer (8), an elastic buffer layer (9), and an additional layer (10). The elastic buffer layer (9) is one of thermoplastic polyurethane or rubber foam. The elastic buffer layer (9) is used to absorb the impact force when the bottle cap is tightened and to compensate for the deformation caused by temperature changes. The additional layer (10) includes an antibacterial layer, a wear-resistant layer and a sensing layer. The antibacterial layer is a polymer containing silver ions and zinc ions. The antibacterial layer is used to inhibit the growth of microorganisms. The wear-resistant layer is one of polyoxymethylene or ceramic coating. The wear-resistant layer is used to increase the hardness of the surface of the gasket body (1) and to prevent wear caused by repeated opening and closing. The sensing layer is one of thermochromic ink, wet-chromic ink, or RFID tag. The sensing layer is used to indicate the opening status and storage conditions.

2. The degummed bottle cap sealing gasket according to claim 1, characterized in that: The gasket body (1) is fixedly connected to a release paper (5) at one end near the auxiliary sealing ring (2). An adhesive layer (4) is installed at one end of the auxiliary sealing ring (2) near the release paper (5). The adhesive layer (4) is pasted on the release paper (5). The outer wall of the auxiliary sealing ring (2) is provided with toothed holes (3). The adhesive layer (4) is one of modified EVA and reactive polyurethane adhesive. The adhesive layer (4) is used to firmly bond with the inner wall of the bottle cap and is resistant to high temperature and chemical corrosion.

3. The degummed bottle cap sealing gasket according to claim 1, characterized in that: The material of the contact layer (6) is one of food-grade silicone or foamed rubber, which is used to directly adhere to the bottle mouth and use elasticity to fill tiny gaps to achieve initial sealing.

4. The degummed bottle cap sealing gasket according to claim 1, characterized in that: The barrier layer (7) is one of EVOH and aluminum-coated film. The barrier layer (7) is used to block oxygen, water vapor and carbon dioxide, and extend the shelf life of the contents.

5. A bottle cap sealing gasket that has been thoroughly degummed according to claim 1, characterized in that: The support layer (8) is one of polypropylene or PET, and the barrier layer (7) is used to provide rigid support for the gasket body (1) to prevent the gasket from being deformed by pressure.

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