Double-layer adhesive bubble cotton with edge protection effect

Abstract

The utility model discloses a double -layer adhesive bubble cotton with edge protection effect relates to adhesive bubble cotton production field. This double -layer adhesive bubble cotton with edge protection effect, including bubble cotton piece, the one side of bubble cotton piece is provided with the bearing part, the other side of bubble cotton piece is provided with easy tear cover part, and the one side of easy tear cover part extends outward and forms the cover part, and the cover part is bent to the side of bubble cotton piece and covers the side surface of bubble cotton piece. This double -layer adhesive bubble cotton with edge protection effect, through the size lengthening design to the PET re -off type film of bubble cotton piece top, makes PET re -off type film exceed the edge of bubble cotton piece 0.2mm above and forms cover part, and the cover part is adhered to the side surface of outer adhesion layer, avoids appearing to stick dust impurity and appearing to pull glue situation in the bubble cotton piece in the process of arranging waste processing and turnover, when the bubble cotton piece is pasted on workpiece and then is in the turnover, avoids the external dust and impurity to stick on the outer adhesion layer, avoids the adhesion of outer adhesion layer to drop.

Description

Technical Field

[0001] This utility model relates to the field of adhesive foam production technology, specifically to a double-layer adhesive foam with edge protection effect. Background Technology

[0002] Double-sided adhesive foam, also known as foam double-sided tape, is an adhesive material in which adhesive is uniformly coated on both sides of a foam substrate. Its core structure consists of a foam substrate and double-sided adhesive layers, providing excellent cushioning, sealing and bonding functions.

[0003] In the production process of double-layer adhesive-coated foam, to protect the adhesive layers on both sides of the foam, one side of the foam is typically adhered to a carrier film, while a release liner is adhered to the other side. However, in existing designs, the double-layer adhesive-coated foam and the protective release liner are designed in a 1:1 ratio. This results in the adhesive edge of the foam protected by the release liner being exposed during processing. During foam waste removal, issues such as adhesive pull and adhesion of dust and fibers can easily occur. Furthermore, during foam assembly, after the double-layer adhesive-coated foam is peeled from the carrier film and attached to the product, it undergoes multiple processes, leaving the outer edge of the adhesive surface protected by the release liner exposed again. This further exacerbates adhesive pull and adhesion of dust and fibers, leading to decreased adhesion on the outer surface of the double-layer adhesive-coated foam during use and affecting its performance. Therefore, a double-layer adhesive-coated foam with edge protection is provided to solve these problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a double-layer adhesive foam with edge protection. This solves the problem in existing designs where the double-layer adhesive foam and the protective release liner are designed in a 1:1 ratio. However, in this design, the adhesive edge of the foam protected by the release liner is exposed during processing. This leads to problems such as adhesive pull-out and adhesion of dust and fibrous foreign matter during foam waste removal. Furthermore, during foam assembly, after the double-layer adhesive foam is peeled from the carrier film and attached to the product, it undergoes multiple processes, leaving the outer edge of the adhesive surface protected by the release liner exposed again. This further exacerbates the problems of adhesive pull-out and adhesion of dust and fibrous foreign matter.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a double-layer adhesive foam with edge protection effect, comprising a foam component, a bearing portion provided on one side of the foam component, and an easy-tear covering portion provided on the other side of the foam component. One side of the easy-tear covering portion extends outward to form a covering portion, and the covering portion bends toward one side of the foam component and covers the side of the foam component to protect the side of the foam component.

[0006] Preferably, the outer side of the foam component is coated with an external adhesive layer, and the tear-off cover is adhered to the external adhesive layer.

[0007] Preferably, the tear-off cover and the shielding part are PET release film.

[0008] Preferably, the covering portion is adhered to the side of the outer adhesive layer so that the covering portion fits against the side of the foam component.

[0009] Preferably, the carrier portion includes a carrier film and a PET transparent release film fixedly disposed on the surface of the carrier film.

[0010] Preferably, the inner side of the foam component is coated with an inner adhesive layer, which is adhered to the PET transparent release film.

[0011] Preferably, both the outer adhesive layer and the inner adhesive layer are EVA adhesive.

[0012] Its beneficial effects are as follows: This double-layer adhesive foam with edge protection features an extended PET release film on top of the foam component, extending it more than 0.2mm beyond the edge of the foam component to form a covering. During assembly, the portion of the PET release film extending beyond the foam component is pressed downwards, causing the covering to adhere to the side of the outer adhesive layer coated on top of the foam component. This ensures the covering remains in close contact with the side of the foam component, preventing dust and impurities from adhering to the foam component during waste removal and handling, and preventing adhesive pull-out. Furthermore, when the foam component is detached from the support and attached to a workpiece for subsequent handling, it effectively prevents external dust and impurities from adhering to the outer adhesive layer, thus preventing a decrease in the adhesive strength of the outer adhesive layer. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a cross-sectional view of the overall side structure of this utility model; Figure 2 This is a schematic diagram illustrating the bonding effect between the covering part and the outer adhesive layer of this utility model.

[0015] In the diagram: 1. Foam component; 12. Outer adhesive layer; 13. Inner adhesive layer; 2. Supporting part; 21. Supporting film; 22. PET transparent release film; 3. Easy-tear covering part; 32. Covering part. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0018] This utility model discloses a double-layer adhesive foam with edge protection effect, according to the attached... Figure 1 To be continued Figure 2 As shown, the foam component 1 is provided with a bearing portion 2 on one side and an easy-tear covering portion 3 on the other side. One side of the easy-tear covering portion 3 extends outward to form a covering portion 32. The covering portion 32 bends toward one side of the foam component 1 and covers the side of the foam component 1 to protect the side of the foam component 1.

[0019] The outer side of the foam component 1 is coated with an outer adhesive layer 12, and the easy-tear cover 3 is adhered to the outer adhesive layer 12. In use, the easy-tear cover 3 can be peeled off to separate it from the outer adhesive layer 12, thus facilitating its use.

[0020] The easy-tear covering part 3 and the cover part 32 are PET heavy release films. The cover part 32 is bonded to the side of the outer adhesive layer 12 so that the cover part 32 fits against the side of the foam part 1. By designing the size of the PET heavy release film to be more than 0.2 mm larger than the surface area of ​​the foam part 1, the part of the PET heavy release film that exceeds the surface area naturally forms the cover part 32. When the two are bonded, the part of the PET heavy release film that exceeds the surface area of ​​the foam part 1 is folded towards the side of the foam part 1 so that it is bonded to the outer adhesive layer 12. It should be noted that the thickness of the outer adhesive layer 12 is less than 0.2 mm to ensure that the cover part 32 can completely cover the outer adhesive layer 12. In practical applications, the cover part 32 can be appropriately extended so that the part of the cover part 32 that exceeds the adhesive layer 12 naturally forms an easy-tear handle. When separating the PET heavy release film, it can be quickly torn open using this easy-tear handle.

[0021] The carrier part 2 includes a carrier film 21 and a PET transparent release film 22 fixedly disposed on the surface of the carrier film 21. The inner side of the foam part 1 is coated with an inner adhesive layer 13, which is bonded to the PET transparent release film 22. The carrier film 21 has stronger toughness, thereby providing support and adhesion for the foam part 1. The PET transparent release film 22 on the surface of the carrier film 21 can be quickly separated from the inner adhesive layer 13.

[0022] Both the outer adhesive layer 12 and the inner adhesive layer 13 are EVA adhesives, which are applied to the surface of the foam part 1 by spraying or rolling. It should be noted that the thickness of the outer adhesive layer 12 should be less than 0.2 mm, and the coating should be uniform to avoid excessive glue overflow on the sides of the foam part 1.

[0023] Working principle: This double-layer adhesive foam with edge protection features an extended PET release film on the top of the foam part 1, extending it more than 0.2mm beyond the edge of the foam part 1 to form a covering portion 32. During the bonding and assembly process, the portion of the PET release film extending beyond the foam part 1 is pressed downwards, causing the covering portion 32 to adhere to the side of the outer adhesive layer 12 coated on the top of the foam part 1. This keeps the covering portion 32 in contact with the side of the foam part 1, thus preventing dust and impurities from adhering to the foam part 1 and causing adhesive pull-out during waste removal and turnover. Furthermore, when the foam part 1 is subsequently separated from the support part 2 and bonded to the workpiece for turnover, it effectively prevents external dust and impurities from adhering to the outer adhesive layer 12, thereby preventing a decrease in the adhesiveness of the outer adhesive layer 12.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] 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 double-layer adhesive-backed foam with edge protection, comprising a foam component (1), characterized in that, A bearing portion (2) is provided on one side of the foam component (1), and an easy-tear covering portion (3) is provided on the other side of the foam component (1). One side of the easy-tear covering portion (3) extends outward to form a covering portion (32). The covering portion (32) bends toward one side of the foam component (1) and covers the side of the foam component (1) to protect the side of the foam component (1).

2. The double-layer adhesive-backed foam with edge protection effect according to claim 1, characterized in that, The outer side of the foam part (1) is coated with an outer adhesive layer (12), and the tear-off cover (3) is adhered to the outer adhesive layer (12).

3. The double-layer adhesive-backed foam with edge protection effect according to claim 2, characterized in that, The tear-off cover (3) and the cover (32) are PET release films.

4. The double-layer adhesive-backed foam with edge protection effect according to claim 2, characterized in that, The covering part (32) is bonded to the side of the outer adhesive layer (12) so that the covering part (32) fits against the side of the foam part (1).

5. A double-layer adhesive-backed foam with edge protection effect according to claim 2, characterized in that, The carrier part (2) includes a carrier film (21) and a PET transparent release film (22) fixedly disposed on the surface of the carrier film (21).

6. A double-layer adhesive-backed foam with edge protection effect according to claim 5, characterized in that, The inner side of the foam component (1) is coated with an inner adhesive layer (13), which is adhered to the PET transparent release film (22).

7. A double-layer adhesive-backed foam with edge protection effect according to claim 6, characterized in that, Both the outer adhesive layer (12) and the inner adhesive layer (13) are EVA adhesives.

Images