Adhesive product capable of preventing small-size adhesive film from being separated from release film

Abstract

The utility model relates to a gluing product capable of preventing a small-size glue film from being separated from a release film, which comprises a base material, the glue film and the release film which are sequentially glued from bottom to top, the viscidity of the glue film to the base material is larger than that of the glue film to the release film, a reinforcing glue film and a reinforcing release film are further arranged on the release film, the reinforcing glue film is connected with the release film and the reinforcing release film, and the reinforcing release film is connected with the reinforcing glue film. The reinforcing adhesive film and the release film have non-overlapping parts, so that the reinforcing adhesive film is adhered to the base material, the viscosity of the reinforcing release film to the reinforcing adhesive film is greater than that of the reinforcing adhesive film to the base material, and the adhesion force of the reinforcing adhesive film to the base material is greater than that of the adhesive film to the base material. According to the adhesive product, the reinforcing adhesive film is mainly used for providing viscidity to the base material, the problem that the release film is prone to falling off due to the fact that the size of the adhesive film is too small is solved, and the integrity of the adhesive product in the transportation process is guaranteed; during use, the release film, the reinforcing adhesive film and the reinforcing release film are peeled off as a whole, so that the adhesive film and the base material are still used in a required state.

Description

Technical Field

[0001] This utility model relates to the field of adhesive technology, and in particular to an adhesive product that avoids the separation of small-sized adhesive film from release film. Background Technology

[0002] Adhesive products generally consist of a substrate, an adhesive film, and a release liner. When using adhesive products, the release liner is removed, leaving the adhesive film on the substrate. The component is then attached to the substrate using the adhesive film. If the adhesive film is very small, its adhesion to the release liner will be weak. During transportation, the release liner of such adhesive products can easily detach, leading to contamination of the adhesive film and even loss of its adhesive properties.

[0003] Therefore, an adhesive structure is needed to solve the above problems. Utility Model Content

[0004] The main purpose of this invention is to provide an adhesive product that avoids separation between small-sized adhesive film and release film. It can improve the overall adhesion of the adhesive to the substrate by using reinforcing adhesive film, avoid the problem of release film falling off easily due to the small size of the adhesive film, and ensure the integrity of the adhesive product during transportation.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: an adhesive product that avoids separation between a small-sized adhesive film and a release film, comprising a substrate, an adhesive film, and a release film pasted sequentially from bottom to top. The adhesive film has a greater adhesion to the substrate than to the release film. The release film is further provided with a reinforcing adhesive film and a reinforcing release film. The reinforcing adhesive film connects the release film and the reinforcing release film. The reinforcing adhesive film and the release film have a non-overlapping portion, thereby allowing the reinforcing adhesive film to adhere to the substrate. The adhesiveness of the reinforcing release film to the reinforcing adhesive film is greater than that of the reinforcing adhesive film to the substrate, and the adhesion force of the reinforcing adhesive film to the substrate is greater than that of the adhesive film to the substrate.

[0006] Specifically, the reinforcing adhesive film is located outside the upper projection range of the adhesive film, and a transparent adhesive film that does not overlap with the reinforcing adhesive film is provided between the release film and the reinforcing release film. The lower projection range of the transparent adhesive film overlaps with the adhesive film.

[0007] Furthermore, the transparent adhesive film bonds the release film and the reinforcing release film to the same side, and the reinforcing adhesive film bonds the release film to the other side of the reinforcing release film.

[0008] Furthermore, there is an air gap between the transparent film and the reinforcing film.

[0009] Specifically, the reinforcing adhesive film is bonded to the substrate at a position on the first side of the release film, the second side of the release film is opposite to the first side, and there is a gap of not less than 1 mm between the first side and the edge of the adhesive film.

[0010] The beneficial effects of this utility model's technical solution are:

[0011] In this invention, the reinforcing adhesive film provides greater adhesion, thereby improving the overall adhesion of the adhesive to the substrate and preventing the release film from easily falling off due to its small size, thus ensuring the integrity of the adhesive product during transportation. During use, the release film, reinforcing adhesive film, and reinforcing release film are peeled off as a single unit, allowing the adhesive film and substrate to remain in the desired state. Attached Figure Description

[0012] Figure 1 This is a cross-sectional schematic diagram of the adhesive product used in the embodiment.

[0013] The numbers in the image represent:

[0014] 1-Substrate;

[0015] 2a - Adhesive film, 2b - Reinforcing adhesive film, 2c - Transparent adhesive film;

[0016] 3a - Release film, 3b - Reinforcing release film;

[0017] 4-Air section. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to specific embodiments.

[0019] Example:

[0020] like Figure 1 As shown, this utility model discloses an adhesive product for preventing the separation of small-sized adhesive film and release film, comprising a substrate 1, an adhesive film 2a, and a release film 3a, which are sequentially pasted from bottom to top. The adhesive film 2a has a stronger adhesion to the substrate 1 than the adhesive film 2a has a stronger adhesion to the release film 3a. The release film 3a is further provided with a reinforcing adhesive film 2b and a reinforcing release film 3b. The reinforcing adhesive film 2b connects the release film 3a and the reinforcing release film 3b. The reinforcing adhesive film 2b and the release film 3a have a non-overlapping portion, thereby allowing the reinforcing adhesive film 2b to adhere to the substrate 1. The adhesiveness of the reinforcing release film 3b to the reinforcing adhesive film 2b is stronger than the adhesiveness of the reinforcing adhesive film 3b to the substrate 1, and the adhesion force of the reinforcing adhesive film 2b to the substrate 1 is greater than the adhesion force of the adhesive film 2a to the substrate 1.

[0021] Here, adhesion refers to the bonding strength of the adhesive film material per unit area to the substrate. In adhesive products, while adhesive film 2a must maintain adhesion to substrate 1, reinforcing adhesive film 2b provides greater bonding force, thereby improving the overall adhesion of the adhesive to substrate 1. This prevents the release film 3a from easily detaching due to the small size of adhesive film 2a, ensuring the integrity of the adhesive product during transportation. During use, release film 3a, reinforcing adhesive film 2b, and reinforcing release film 3b are peeled off as a whole, allowing adhesive film 2a and substrate 1 to remain in the desired state. Reinforcing release film 3b protects reinforcing adhesive film 2b and also increases the stiffness of the adhesive portion, reducing the risk of release film 3a detaching. Because release film 3a is very thin, reinforcing release film 3b can deform slightly, so although adhesive film 2a and reinforcing adhesive film 2b are in different layers of the adhesive product, they can still adhere to substrate 1.

[0022] like Figure 1 As shown, the reinforcing adhesive film 2b is located outside the upper projection range of the adhesive film 2a. A transparent adhesive film 2c that does not overlap with the reinforcing adhesive film 2b is also provided between the release film 3a and the reinforcing release film 3b. The lower projection range of the transparent adhesive film 2c overlaps with the adhesive film 2a.

[0023] In some cases, the adhesive film 2a may be made of a colored material with a significant color difference from the release film 3a. Generally, adhesive film materials with higher tackiness are also darker in color. If the reinforcing adhesive film 2b completely adheres to the upper surface of the release film 3a, it will cover the adhesive film 2a, making it difficult to align the substrate 1 with the adhesive film 2a during the manufacturing process. To avoid this, the portion above the adhesive film 2a can be replaced with a transparent adhesive film 2c with slightly lower tackiness but a transparent color, thus facilitating the detection and positioning of the relative position of the adhesive film 2a and the substrate 1 by the manufacturing equipment.

[0024] like Figure 1 As shown, the transparent adhesive film 2c bonds the release film 3a and the reinforcing release film 3b to the same side, and the reinforcing adhesive film 2b bonds the release film 3a and the reinforcing release film 3b to the other side.

[0025] In this case, the boundary between the transparent adhesive film 2c and the reinforcing adhesive film 2b is clear and the outline is simple, which makes it possible to use strip adhesive film to manufacture adhesive products, and the raw materials are readily available.

[0026] like Figure 1 As shown, there is an air segment 4 between the transparent film 2c and the reinforcing film 2b.

[0027] Because the transparent adhesive film 2c and the reinforcing adhesive film 2b do not affect the use of the adhesive film 2b itself, material can be saved. The reinforcing release film 3b is easier to peel off when it is relatively wide, but the sum of the widths of the transparent adhesive film 2c and the reinforcing adhesive film 2b does not necessarily correspond to the width of the reinforcing release film 3b. Therefore, when the transparent adhesive film 2c and the reinforcing adhesive film 2b are narrower, they will naturally form an air segment 4, saving material. Since the air segment 4 is transparent, it will not interfere with the observation of the adhesive film 2a.

[0028] like Figure 1 As shown, the reinforcing adhesive film 2b is bonded to the substrate 1 at the first side of the release film 3a, the second side of the release film 3b is opposite to the first side, and there is a gap of not less than 1 mm between the first side and the edge of the adhesive film 2a.

[0029] The peeling point of the adhesive part is the second side of the release film 3b. The gap can provide a peeling point. After the adhesive film 2a separates from the release film 3a, the reinforcing adhesive film 2b then separates from the substrate 1, which reduces the risk of reverse adhesion.

[0030] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. An adhesive product for preventing separation of small-sized adhesive film and release film, comprising a substrate, an adhesive film, and a release film sequentially pasted from bottom to top, wherein the adhesive film has a stronger adhesion to the substrate than the adhesive film has to the release film, characterized in that: The release film is further provided with a reinforcing adhesive film and a reinforcing release film. The reinforcing adhesive film connects the release film and the reinforcing release film. The reinforcing adhesive film and the release film have non-overlapping portions, thereby allowing the reinforcing adhesive film to adhere to the substrate. The adhesion of the reinforcing release film to the reinforcing adhesive film is greater than the adhesion of the reinforcing adhesive film to the substrate, and the adhesion force of the reinforcing adhesive film to the substrate is greater than the adhesion force of the adhesive film to the substrate.

2. The adhesive product for preventing separation of small-sized adhesive film and release film according to claim 1, characterized in that: The reinforcing adhesive film is located outside the upper projection range of the adhesive film. A transparent adhesive film that does not overlap with the reinforcing adhesive film is also provided between the release film and the reinforcing release film. The lower projection range of the transparent adhesive film overlaps with the adhesive film.

3. The adhesive product for preventing separation of small-sized adhesive film and release film according to claim 2, characterized in that: The transparent adhesive film bonds the release film and the reinforcing release film to the same side, and the reinforcing adhesive film bonds the release film to the other side.

4. The adhesive product for preventing separation of small-sized adhesive film and release film according to claim 3, characterized in that: There is an air gap between the transparent film and the reinforcing film.

5. The adhesive product for preventing separation of small-sized adhesive film and release film according to claim 1, characterized in that: The reinforcing adhesive film is bonded to the substrate at a position on the first side of the release film, the second side of the release film is opposite to the first side, and there is a gap of not less than 1 mm between the first side and the edge of the adhesive film.

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