Anti-cracking foam tape

Abstract

The utility model discloses a kind of anti-cracking foam tape, it includes: first pressure-sensitive adhesive layer, first strip foam, second strip foam and mesh cloth reinforcing layer, the first strip foam is set on the top surface of mesh cloth reinforcing layer, the second strip foam is set on the bottom surface of mesh cloth reinforcing layer, the mesh cloth reinforcing layer is densely covered with mesh, the second strip foam is spaced apart and provided with embedding hole, the first strip foam bottom surface is provided with the filler that is downwardly penetrated corresponding mesh and extends to embedding hole, the first pressure-sensitive adhesive layer is set on the top surface of first strip foam, by the cooperation of embedding hole and filler, avoid the problem of up and down separation crack between first strip foam, second strip foam and mesh cloth reinforcing layer, good durability, and improve the stability of mesh cloth reinforcing layer, improve the overall tear resistance effect by mesh cloth reinforcing layer.

Description

Technical Field

[0001] This utility model relates to the field of foam tape technology, and in particular to a crack-resistant foam tape. Background Technology

[0002] Foam itself has poor tear resistance. In order to improve the tear resistance during the use of foam tape, a layer of mesh fabric can be added to two layers of foam substrate to form a three-layer composite structure, and the properties of the mesh fabric can be used to improve the overall tear resistance.

[0003] To achieve the lamination of the mesh fabric and foam substrate, an adhesive coating process can be used to bond the mesh fabric and foam substrate together. However, this increases the cost of the adhesive and is not environmentally friendly. Furthermore, the adhesive has poor durability and is prone to cracking during use, leading to separation between the two layers of foam substrate or between the mesh fabric and the foam substrate. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a crack-resistant foam tape that improves tear resistance and structural stability, and avoids separation and cracking problems.

[0005] To achieve this objective, the present invention adopts the following technical solution: A crack-resistant foam tape includes: a first pressure-sensitive adhesive layer, a first strip foam, a second strip foam, and a mesh reinforcement layer. The first strip foam is disposed on the top surface of the mesh reinforcement layer, and the second strip foam is disposed on the bottom surface of the mesh reinforcement layer. The mesh reinforcement layer is densely covered with mesh holes, and the second strip foam is provided with intermittently spaced embedding holes. The bottom surface of the first strip foam is provided with a filler that penetrates downward through the corresponding mesh holes and extends into the embedding holes. The first pressure-sensitive adhesive layer is disposed on the top surface of the first strip foam.

[0006] The top diameter of the embedded hole is smaller than the bottom diameter of the embedded hole to form a tapered hole.

[0007] The first strip foam and the filler adopt an integrated EVA foam plastic structure.

[0008] The first pressure-sensitive adhesive layer has a first release paper on its top surface.

[0009] The bottom surface of the second strip foam is provided with a second pressure-sensitive adhesive layer.

[0010] The bottom surface of the second pressure-sensitive adhesive layer is provided with a second release paper.

[0011] The reinforcing layer of the mesh fabric is made of nylon mesh fabric.

[0012] The beneficial effects of this utility model are as follows: A crack-resistant foam tape, through the cooperation of the embedded hole and the filler, avoids the problem of separation and cracking between the first strip foam, the second strip foam and the mesh reinforcement layer, has good durability, and improves the stability of the mesh reinforcement layer. The mesh reinforcement layer improves the overall tear resistance. No glue is needed to fix the first strip foam, the second strip foam and the mesh reinforcement layer, and it is environmentally friendly. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Sectional view along the AA direction. Detailed Implementation

[0014] The following is combined with Figures 1-2 The technical solution of this utility model will be further illustrated through specific embodiments.

[0015] like Figure 1 The crack-resistant foam tape shown includes: a first pressure-sensitive adhesive layer 5, a first strip foam 1, a second strip foam 2, and a mesh reinforcement layer 3. The first strip foam 1 is disposed on the top surface of the mesh reinforcement layer 3, and the second strip foam 2 is disposed on the bottom surface of the mesh reinforcement layer 3, forming a three-layer superimposed composite structure.

[0016] In this embodiment, the reinforcing mesh layer 3 is made of nylon mesh, which is corrosion-resistant and has good tear resistance. The reinforcing mesh layer 3 is densely covered with mesh holes, which does not affect the foaming and molding of the filler 9.

[0017] like Figure 2 As shown, the second strip foam 2 is provided with intermittently arranged embedding holes 8, and the bottom surface of the first strip foam 1 is provided with a filler 9 that penetrates downward through the corresponding mesh and extends into the embedding hole 8. In this embodiment, the top diameter of the embedding hole 8 is smaller than the bottom diameter of the embedding hole 8 to form a conical hole, so that the filler 9 is formed into a conical column, which prevents the filler 9 from moving upward and detaching, strengthens the connection stability between the first pressure-sensitive adhesive layer 5 and the second strip foam 2, avoids the problem of cracking at the top and bottom, and thus improves the positional stability of the mesh reinforcement layer 3.

[0018] like Figure 1 As shown, the first pressure-sensitive adhesive layer 5 is disposed on the top surface of the first strip foam 1. In this embodiment, the top surface of the first pressure-sensitive adhesive layer 5 is provided with a first release paper 4 to protect the first pressure-sensitive adhesive layer 5, making it convenient to use.

[0019] A second pressure-sensitive adhesive layer 6 is provided on the bottom surface of the second strip foam 2, facilitating double-sided use. A second release paper 7 is provided on the bottom surface of the second pressure-sensitive adhesive layer 6, protecting the second pressure-sensitive adhesive layer 6 and making it convenient to use.

[0020] In this embodiment, the first strip foam 1 and the filler 9 adopt an integrated EVA foam plastic structure, such as Figure 2 As shown, the second strip foam 2 is placed into the mold, the top surface is covered with a mesh reinforcement layer 3 and then the mold is closed to carry out the foaming and molding of the first strip foam 1 and the filler 9, which is convenient for production.

[0021] In addition, after the filler 9 fills the embedded hole 8, the flatness of the bottom surface of the second strip foam 2 is improved, which is beneficial to the roller coating of the second pressure-sensitive adhesive layer 6 and improves the flatness of the second pressure-sensitive adhesive layer 6, thus ensuring the effect of use.

[0022] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A crack-resistant foam tape, characterized in that, include: The structure comprises a first pressure-sensitive adhesive layer, a first strip foam, a second strip foam, and a mesh reinforcement layer. The first strip foam is disposed on the top surface of the mesh reinforcement layer, and the second strip foam is disposed on the bottom surface of the mesh reinforcement layer. The mesh reinforcement layer is densely covered with mesh holes, and the second strip foam is provided with intermittently spaced embedding holes. The bottom surface of the first strip foam is provided with a filler that penetrates downward through the corresponding mesh holes and extends into the embedding holes. The first pressure-sensitive adhesive layer is disposed on the top surface of the first strip foam.

2. The anti-cracking foam tape according to claim 1, characterized in that, The top diameter of the embedded hole is smaller than the bottom diameter of the embedded hole to form a tapered hole.

3. The anti-cracking foam tape according to claim 1, characterized in that, The first strip foam and the filler adopt an integrated EVA foam plastic structure.

4. The anti-cracking foam tape according to claim 1, characterized in that, The top surface of the first pressure-sensitive adhesive layer is provided with a first release paper.

5. The anti-cracking foam tape according to claim 1, characterized in that, The bottom surface of the second strip foam is provided with a second pressure-sensitive adhesive layer.

6. The anti-cracking foam tape according to claim 5, characterized in that, A second release paper is provided on the bottom surface of the second pressure-sensitive adhesive layer.

7. The anti-cracking foam tape according to claim 1, characterized in that, The reinforcing layer of the mesh fabric is made of nylon mesh fabric.

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