Anti-deformation foam double-sided adhesive tape

Abstract

The utility model relates to the field of foam double -sided adhesive, specifically disclose the anti -deformation foam double -sided adhesive, including base material, a plurality of equal -interval distribution's through groove along its length direction is seted up in base material, the upper and lower sides of base material are all coated with a plurality of equal -interval distribution's glue layer along its length direction, the glue layer on upside is pasted with a layer of release paper, and the interval between adjacent glue layer of same layer is aligned with through groove. Since the thickness of the upper and lower parts of the base material in the through groove is thin, it is convenient to tear, and the interval between adjacent glue layers makes it easy to separate, and through the support of the support part, the extrusion of the tearing part by the fingers when tearing the foam double -sided adhesive is reduced, the deformation of the foam double -sided adhesive is reduced, the support part made of polyurethane foam has high density and support strength, thereby realizing the anti -deformation ability of the foam double -sided adhesive at the breaking point.

Description

Technical Field

[0001] This utility model relates to the field of foam double-sided adhesive, specifically to anti-deformation foam double-sided adhesive. Background Technology

[0002] Double-sided foam tape is a type of double-sided tape made by coating both sides of a foam substrate with a strong acrylic adhesive, and then covering one side with release paper or release film. Traditionally, when cutting a length of foam double-sided tape, it is usually pinched between the fingertips and then torn in opposite directions. During this process, due to the stickiness of the adhesive, the foam double-sided tape is not easy to tear, so more force is needed to pull the foam double-sided tape apart. As a result, the foam double-sided tape deforms and thins at the break point due to excessive pressure from the fingertips, which affects the contact between the object being bonded and the adhesive at the break point, and thus the bonding effect at that point.

[0003] Therefore, this utility model provides a deformation-resistant foam double-sided adhesive to alleviate the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide anti-deformation foam double-sided adhesive to overcome the above-mentioned defects in the prior art.

[0005] According to the present invention, the anti-deformation foam double-sided adhesive includes a substrate, wherein a plurality of through grooves are provided in the substrate and are distributed at equal intervals along its length. Both the upper and lower sides of the substrate are coated with a plurality of adhesive layers distributed at equal intervals along its length. A release paper is attached to the adhesive layer on the upper side, and the interval between adjacent adhesive layers of the same layer is aligned with the through grooves.

[0006] With the above technical solution, the substrate is thin in the upper and lower parts of the through groove, making it easy to tear. Moreover, the spacing between adjacent adhesive layers makes it easy to separate, reducing the pressure of fingers on the torn part when tearing the foam double-sided tape and reducing the deformation of the foam double-sided tape.

[0007] The utility model is further configured such that: the substrate is formed by foaming EVA foam in a mold to form a porous structure with multiple through grooves, the through grooves penetrating the substrate along the width direction of the substrate.

[0008] The above technical solution reduces the thickness of the substrate at the upper and lower parts of the groove, making this part easier to tear.

[0009] The utility model is further configured such that a support portion is filled inside the through groove.

[0010] Through the above technical solution, the support part can enhance the support strength of the substrate and improve its resistance to deformation.

[0011] The utility model is further configured such that: the support part is made of polyurethane foam and is the same size as the through groove.

[0012] The above technical solution enables the support part to have high density and strength, thereby improving its support strength.

[0013] The utility model is further configured such that the interval between adjacent adhesive layers in the same layer is 1mm-3mm.

[0014] The above technical solution allows the adhesive layer to cover most of the substrate surface, ensuring that the substrate is easy to break while guaranteeing the bonding effect.

[0015] The utility model is further configured such that multiple crease lines are pressed onto the release paper for easy tearing, and the crease lines are aligned with the through groove.

[0016] Through the above technical solution, the presence of the crease line makes the release paper easier to tear at the crease line, reducing its impact on the tearing process of the substrate.

[0017] The beneficial effects of this utility model are: because the substrate is thin in the upper and lower parts of the through groove, it is easy to tear, and the spacing between adjacent adhesive layers makes it easy to separate. At the same time, the support of the support part reduces the pressure of fingers on the torn part when tearing the foam double-sided tape, and reduces the deformation of the foam double-sided tape. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is an exploded schematic diagram of this utility model.

[0020] In the picture:

[0021] 10. Substrate; 11. Support; 12. Adhesive layer; 13. Release paper; 14. Through groove. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are merely simplified descriptions for the convenience of describing this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model. As used herein, the terms up / down and left / right are not limited to their strict geometric definitions, but rather include tolerances for reasonable and inconsistent machining or human errors. The specific features of this anti-deformation foam double-sided adhesive are described in detail below:

[0024] One embodiment of this utility model:

[0025] Reference Figures 1-2 This utility model provides a deformation-resistant foam double-sided adhesive, including a substrate 10. The substrate 10 has multiple through-grooves 14 evenly distributed along its length. Both the upper and lower sides of the substrate 10 are coated with multiple adhesive layers 12 evenly distributed along its length. A release paper 13 is adhered to the upper adhesive layer 12. The spacing between adjacent adhesive layers 12 is aligned with the through-grooves 14. The substrate 10 is formed by foaming EVA foam in a mold to create a porous structure with multiple through-grooves 14. EVA foam is ethylene-vinyl acetate copolymer, which is a... A polymer material with excellent softness and compressive strength is used to make finished products with good softness, shock resistance, anti-slip properties and strong compressive strength. The through groove 14 penetrates the substrate 10 along the width direction of the substrate 10. The through groove 14 is filled with a support part 11. The support part 11 is made of polyurethane foam and is the same size as the through groove 14. The polyurethane (PU) foam material has high density and strength. In this embodiment, the interval between adjacent adhesive layers 12 in the same layer is 1 mm. Multiple crease lines that are easy to tear are pressed on the release paper 13. The crease lines are aligned with the through groove 14.

[0026] During the process of tearing the foam double-sided tape, the fingertips grasp the edge of the foam double-sided tape and align it with the indentation line on the release paper 13, and then tear the foam double-sided tape in the opposite direction. During this process, the only resistance at the tearing point of the foam double-sided tape is the substrate 10 located in the upper and lower parts of the support part 11 and the release paper 13. Moreover, the presence of the indentation line makes the release paper 13 easy to tear, thereby reducing the resistance when the foam double-sided tape is torn, which can reduce the clamping force between them. At the same time, the support part 11, which is made of polyurethane foam, has high density and support strength, thereby achieving the foam double-sided tape's resistance to deformation at the break point.

[0027] Those skilled in the art will appreciate that various modifications to the above embodiments can be made without departing from the overall spirit and concept of this utility model. All such modifications fall within the protection scope of this utility model. The protection scheme of this utility model is defined by the appended claims.

Claims

1. A double-sided adhesive tape for anti-deformation foam, comprising a substrate (10), characterized in that: The substrate (10) has multiple through grooves (14) that are equidistantly distributed along its length. Both the upper and lower sides of the substrate (10) are coated with multiple adhesive layers (12) that are equidistantly distributed along its length. A release paper (13) is attached to the adhesive layer (12) on the upper side. The interval between adjacent adhesive layers (12) in the same layer is aligned with the through grooves (14).

2. The anti-deformation foam double-sided adhesive according to claim 1, characterized in that: The substrate (10) is formed by foaming EVA foam in a mold to form a porous structure with multiple through grooves (14), the through grooves (14) penetrating the substrate (10) along the width direction of the substrate (10).

3. The anti-deformation foam double-sided adhesive according to claim 1, characterized in that: The through groove (14) is filled with a support (11).

4. The anti-deformation foam double-sided adhesive according to claim 3, characterized in that: The support (11) is made of polyurethane foam and is the same size as the through groove (14).

5. The anti-deformation foam double-sided adhesive according to claim 1, characterized in that: The spacing between adjacent adhesive layers (12) in the same layer is 1mm-3mm.

6. The anti-deformation foam double-sided adhesive according to claim 1, characterized in that: Multiple crease lines are pressed into the release paper (13) to facilitate tearing, and the crease lines are aligned with the through groove (14).

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