A sealing tape with high air tightness

Abstract

The utility model discloses a kind of sealing adhesive tapes with high air tightness, including base tape layer, air tightness barrier layer and adhering sealing layer.The base tape layer is used to provide the overall support and deformation carrying capacity of adhesive tape;The air tightness barrier layer is compounded in the outer surface of base tape layer, surface is equipped with continuous honeycomb texture structure, each honeycomb texture structure is connected by edge honeycomb edge and forms integral pullable structure, honeycomb edge forms local annular sealing area when adhesive tape is pressed or pulled, to improve sealing performance and fit stability;The adhering sealing layer is arranged on the other surface of base tape layer, to form detachable or long-term adhering air-tight seal with the sealed surface.The utility model structure is durable, air tightness is high, can keep uniform multi-point annular sealing effect under pressure, pulling and complex working conditions, and has the advantages of convenient construction and long-term use reliable.

Description

Technical Field

[0001] This utility model relates to the field of adhesive tape technology, specifically to a sealing tape with high airtightness. Background Technology

[0002] Sealing tapes are widely used in vehicle manufacturing, building waterproofing, pipeline sealing, and electronic device protection due to their ease of application and certain airtightness and waterproofing capabilities. Existing sealing tapes typically consist of a base layer, a barrier layer, and an adhesive layer, achieving a seal through direct contact between the adhesive layer and the surface to be sealed. However, traditional tapes still have several shortcomings under long-term use or in complex environments:

[0003] Firstly, most existing airtight tapes use a flat film or ordinary rubber structure as the barrier layer. When subjected to external forces such as stretching, bending, or vibration, these layers are prone to localized stress concentration, leading to micro-gaps or peeling on the sealing surface, thus affecting airtightness and waterproofing. For example, common single-layer PVC or EPDM rubber tapes are prone to airtightness degradation after long-term pressure.

[0004] Furthermore, existing tapes mostly rely on overall surface pressure to achieve sealing, lacking structural auxiliary sealing designs, resulting in unstable sealing on irregular surfaces or when subjected to external forces. When tapes are used for sealing vehicle body seams or equipment, localized leaks can easily occur at the sealing surface due to thermal expansion and contraction, vibration, and the influence of the external environment.

[0005] In summary, existing sealing tapes still have significant shortcomings in terms of airtightness, vibration-resistant sealing, and interlayer durability. There is an urgent need for a sealing tape with high airtightness that has a continuous structural sealing function, can form multi-point annular sealing areas under pressure, and has a strong overall composite structure, in order to improve long-term stable sealing performance in complex environments. Utility Model Content

[0006] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0007] Therefore, the technical solution adopted by this utility model is as follows: a highly airtight sealing tape, comprising: a base layer, an airtight barrier layer, and an adhesive sealing layer; the base layer provides overall support and deformation bearing capacity for the tape; the airtight barrier layer is laminated to the outer surface of the base layer to prevent air or moisture penetration; the adhesive sealing layer is disposed on the other surface of the base layer to form a detachable or long-term adherent airtight seal with the sealed surface; the surface of the airtight barrier layer is provided with a continuous honeycomb texture structure, and each honeycomb texture structure is interconnected by edge honeycomb ridges to form an integral stretchable structure. When the tape is compressed or stretched, the honeycomb ridges form local annular sealing areas to improve sealing performance and bonding stability. Through the above design, this utility model can form multi-point annular seals after the tape is bonded, effectively preventing air or moisture penetration and improving overall airtightness and durability.

[0008] In a preferred embodiment, the base layer is made of polyester fiber cloth or polymer composite film structure, which has excellent tensile strength and fatigue resistance, and can withstand the bending and tensile deformation of the tape during installation and use, thereby improving the overall structural stability and service life of the tape.

[0009] In a preferred embodiment, the airtight barrier layer is formed by combining a polymer elastic material with a barrier film. The polymer elastic material can be thermoplastic polyurethane or ethylene propylene rubber, so that the barrier layer is flexible while ensuring airtightness and can adapt to irregular surfaces and dynamic deformation. The continuous honeycomb structure is arranged in a hexagonal array, with the honeycomb edges and the bottom surface of the honeycomb integrally formed, forming a multi-point annular seal when under pressure, effectively preventing local leakage.

[0010] In a preferred example, the height of the honeycomb ridges is 0.3mm to 1mm, which enables elastic rebound during tape compression or tension, thereby enhancing sealing performance and resisting warping or failure caused by vibration or temperature changes. Specifically, the honeycomb ridges can form local annular sealing areas under stress, achieving multi-point support and overall sealing effect, further improving durability and airtightness.

[0011] In a preferred embodiment, the adhesive sealing layer is a pressure-sensitive adhesive structure that can quickly form a strong adhesive seal with the surface to be sealed at room temperature, and a peelable protective film is provided on its outer surface to protect the adhesive surface from dust or oil contamination before use, thereby ensuring convenient construction and reliable sealing.

[0012] In a preferred example, the continuous honeycomb structure covers the entire outer surface of the airtight barrier layer and extends continuously along the longitudinal direction of the tape, so that the tape can maintain a uniform sealing effect when stretched in different directions; at the same time, a surface protective layer made of polyurethane film or fluorine film is formed on the surface of the airtight barrier layer, which can further improve wear resistance and environmental aging resistance.

[0013] In a preferred example, the base layer, the airtight barrier layer, and the adhesive sealing layer are integrally prepared by thermal bonding or multilayer co-extrusion molding to achieve high interlayer adhesion strength and stable durability, and to avoid sealing failure caused by interlayer separation after long-term use.

[0014] The specific technical effects are as follows: By constructing a continuous honeycomb structure and honeycomb ridge design on the surface of the airtight barrier layer, this utility model enables the tape to form a multi-point annular seal when under pressure or tension, significantly improving airtightness; the high-strength structure of the base layer and the flexible composite of the barrier layer enable the tape to maintain stable sealing and durability under complex working conditions; the design of the adhesive sealing layer and its protective film ensures convenient construction and long-term reliable adhesion, thus improving the overall practical performance and lifespan of the tape.

[0015] The beneficial effects achieved by this utility model are as follows:

[0016] 1. In this utility model, by setting a continuous honeycomb texture structure on the surface of the airtight barrier layer and utilizing the honeycomb ridges to form an annular sealing area under pressure and tension, not only is the airtight performance of the sealing tape in terms of air and water vapor barrier improved, but it also has good tensile strength and elastic resilience during installation and use, thereby improving the bonding stability and long-term sealing reliability.

[0017] 2. In this utility model, the base layer, the airtight barrier layer and the adhesive sealing layer are prepared as a whole by multi-layer composite or co-extrusion molding process, which ensures the interlayer bonding strength and durability; combined with the multi-point sealing effect of the honeycomb ridges, the tape can still maintain a stable sealing effect under bending, pressure and vibration conditions, significantly extending the service life and improving environmental adaptability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall layered structure of one embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the surface structure of the airtight barrier layer according to an embodiment of the present invention.

[0020] Figure label:

[0021] 100. Base layer; 200. Airtight barrier layer; 300. Adhesive sealing layer. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0023] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0024] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a highly airtight sealing tape.

[0025] Combination Figures 1-2 As shown, the present invention provides a high-airtightness sealing tape, comprising a base layer 100, an airtight barrier layer 200, and an adhesive sealing layer 300, and is in the form of a long strip roll structure, which can be applied to doors and windows, pipe joints, mechanical housings, or areas requiring high airtightness sealing.

[0026] The base layer 100 is the overall load-bearing layer of the tape, used to provide support and deformation resistance under tension, bending, and external forces. The base layer 100 is preferably made of polyester fiber cloth or polymer composite film to improve the overall tensile strength and fatigue resistance of the tape.

[0027] An airtight barrier layer 200 is laminated onto the outer surface of the base layer 100, forming a barrier against air, water vapor, and fine dust particles. The airtight barrier layer 200 is formed by laminating a polymer elastic material with a barrier film. The polymer elastic material is preferably thermoplastic polyurethane or ethylene propylene rubber, and the barrier film can be a polyurethane film or a fluorine film to improve airtightness and weather resistance.

[0028] An adhesive sealing layer 300 is disposed on the other surface of the base layer 100 for forming a removable or permanently adhered airtight seal with the surface to be sealed. The adhesive sealing layer 300 employs a pressure-sensitive adhesive structure and has a peelable protective film on its surface to prevent contamination of the adhesive surface before installation.

[0029] The core innovation of this invention lies in the continuous honeycomb pattern structure on the surface of the airtight barrier layer 200. This honeycomb pattern structure is arranged in a hexagonal array, and each honeycomb unit is interconnected through edge honeycomb ridges to form an integral, pullable structure. The honeycomb ridges are integrally formed with the bottom surface of the honeycomb, allowing for the formation of localized annular sealing areas along the ridges when the tape is compressed or stretched.

[0030] In a preferred example, the height of the honeycomb ridges is 0.3mm to 1mm, which allows the tape to maintain a certain elastic resilience during bending, bonding, and compression, thereby enhancing the sealing performance and preventing air or moisture from penetrating along tiny gaps. Simultaneously, the continuous honeycomb structure covers the entire outer surface of the airtight barrier layer 200 and extends continuously along the longitudinal direction of the tape, ensuring a uniform sealing effect when the tape is stretched in different directions.

[0031] like Figure 2As shown, the base layer 100, the airtight barrier layer 200, and the adhesive sealing layer 300 are prepared by thermal bonding or multi-layer co-extrusion molding process to ensure the bonding strength and long-term durability between the functional layers.

[0032] Among them: the base layer 100 provides tensile load-bearing capacity; the airtight barrier layer 200 provides high airtightness and honeycomb reinforcement structure; and the adhesive sealing layer 300 provides stable and controllable adhesive sealing performance.

[0033] In practical applications, when the tape adheres to the surface to be sealed and is subjected to pressure, the honeycomb ridges and the bottom surface form a ring-shaped sealing band, preventing air or moisture from seeping in along the surface or edges of the tape. Under vibration conditions of vehicles, pipelines, or mechanical housings, the honeycomb ridges maintain the sealing effect through micro-elastic deformation.

[0034] Working principle and usage:

[0035] In use, first peel off the protective film on the surface of the adhesive sealing layer 300, and then apply the tape along the target sealing position. When the tape is pressed by external force, the honeycomb ridges of the airtight barrier layer 200 and the bottom surface together form a multi-point annular sealing area. The honeycomb ridges can partially spring back after the external force is removed, maintaining long-term sealing stability.

[0036] Through the flexible bearing capacity of the base layer 100, the multi-point honeycomb sealing structure of the airtight barrier layer 200, and the high viscosity support of the adhesive sealing layer 300, the sealing tape of this utility model has excellent performance in air, water vapor and dust protection, and can achieve long-term use without falling off or failing to seal.

[0037] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A sealing tape with high airtightness, characterized in that, include: Base layer (100), airtight barrier layer (200) and adhesive sealing layer (300); The base layer (100) is used to provide overall support and deformation bearing capacity for the tape; The airtight barrier layer (200) is composited on the outer surface of the base layer (100) to prevent air or water vapor from penetrating; The adhesive sealing layer (300) is disposed on the other surface of the base layer (100) for forming a removable or long-term adhesive airtight seal with the sealed surface; The airtight barrier layer (200) has a continuous honeycomb pattern on its surface. Each honeycomb pattern is connected to the others by edge honeycomb ridges to form an integral stretchable structure. When the tape is compressed or stretched, the honeycomb ridges form a local annular sealing area to improve sealing performance and bonding stability.

2. The airtight sealing tape according to claim 1, characterized in that, The base layer (100) is made of polyester fiber cloth or polymer composite film structure to improve the overall tensile strength and fatigue resistance of the tape.

3. The high-airtightness sealing tape according to claim 1, characterized in that, The airtight barrier layer (200) is formed by a composite of a polymer elastic material and a barrier film, wherein the polymer elastic material is thermoplastic polyurethane or ethylene propylene rubber.

4. The airtight sealing tape according to claim 1, characterized in that, The continuous honeycomb pattern is arranged in a hexagonal array, with the honeycomb edges and the bottom surface integrally formed, which is used to form a multi-point annular seal under pressure.

5. The airtight sealing tape according to claim 1, characterized in that, The height of the honeycomb ridges is 0.3mm to 1mm, which can provide elastic rebound during tape bending or compression to enhance sealing performance.

6. The airtight sealing tape according to claim 1, characterized in that, The adhesive sealing layer (300) is a pressure-sensitive adhesive structure and has a peelable protective film on its surface to protect the adhesive surface from contamination before installation.

7. The airtight sealing tape according to claim 1, characterized in that, The continuous honeycomb structure covers the entire outer surface of the airtight barrier layer (200) and extends continuously along the longitudinal direction of the tape, so that the tape maintains a uniform sealing effect when stretched in different directions. The surface of the airtight barrier layer (200) is provided with a surface protective layer made of polyurethane film or fluorine film.

8. The airtight sealing tape according to claim 1, characterized in that, The base layer (100), the airtight barrier layer (200), and the adhesive sealing layer (300) are integrally prepared by thermal bonding or multilayer co-extrusion molding to improve the interlayer bonding strength and durability.

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