CN205907216U - Foam tape structure - Google Patents

Abstract

The utility model provides a foam glue structure, comprising a first release layer, a first adhesive layer and a foam layer, the first release layer is provided with a first hand-tear position, and the first hand-tear One end of the bit is disconnected. The structure of the hand-tear position on the foam adhesive release layer is designed as a one-end disconnection type. When the hand-tear position is torn, there will be no delamination and overall separation of the foam adhesive. It is suitable for "back" fonts and easy delamination foam glue. The structure of the foam glue hand-tearable position is simple in design and suitable for large-scale production.

Description

A foam glue structure

technical field

The utility model relates to the field of electronic product production, in particular to a foam glue structure.

Background technique

With the development of electronic consumer products, foam glue or double-sided tape will be used when assembling the modules of electronic equipment. The foam glue structure shown in Figure 1 includes a release layer 1, an adhesive layer 2 and a foam layer 3, the foam layer 3 is located between two adhesive layers 2, the release layer 1 and the adhesive layer 2 fit together. The release layer needs to be torn off when the foam glue is used. Usually, a hand-tear position is designed on the release layer, and tearing the release layer at the hand-tear position can quickly make it detached. As shown in Figure 2 and Figure 3, most of the existing foam adhesives are integral hand-tearing position 4 or hole-shaped hand-tearing position 5. When the contact surface of the product is a narrow-frame back-shaped or soft material that is easy to layer foam, When tearing off the release paper at the integral or hole-shaped hand-tearing position, the foam may delaminate or fall off as a whole, and the hole-type design will also cause material waste.

Utility model content

The technical problem to be solved by the utility model is to provide a foam glue structure with simple structure and easy to tear off the release layer.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a foam glue structure, including a first release layer, a first adhesive layer and a foam layer, the first release layer is provided with a first The hand-torn bit, one end of the first hand-torn bit is disconnected.

Further, a second adhesive layer is also included.

Further, it also includes a second release layer, the second release layer is provided with a second hand-tear position, and one end of the second hand-tear position is broken.

Further, the first release layer is attached to the first adhesive layer, and the second release layer is attached to the second adhesive layer; the foam layer is located between the first adhesive layer and the second adhesive layer. between the glue layers.

Further, the release layer is in the shape of "Hui" as a whole.

Further, the hand-tear position on the release layer extends into the "back" shape.

Further, the shape of the hand-tearable bit is rectangular or U-shaped.

Further, the foam layer is in the shape of "back".

Further, the release layer is a release paper or a release film.

The beneficial effect of the utility model is that: the structure of the hand-tear position on the foam glue release layer is designed as a one-end disconnected type, and the foam glue will not be delaminated and integrally detached when the hand-tear position is torn, and it is suitable for " "back" shape and easy-to-layer foam glue, the design is simple in structure, high in production efficiency, and can also save materials to a certain extent.

Description of drawings

Fig. 1 is a schematic diagram of the explosion structure of the prior art hole type foam glue;

Fig. 2 is a top view of the prior art integral foam glue;

Fig. 3 is the top view of prior art cell type foam glue;

Fig. 4 is a schematic diagram of the explosion structure of the utility model foam glue;

Fig. 5 is the top view of the foam glue of the present utility model;

Label description:

1. Release layer; 2. Adhesive layer; 3. Foam layer; 4. Integral hand-tear position; 5. Hole-type hand-tear position; 11. First release layer; 12. Second release layer; 21. The first adhesive layer; 22. The second adhesive layer; 40. The first hand tearing position; 41. The disconnection structure; 42. The second hand tearing position; 43. The force of the hand tearing position.

detailed description

In order to describe the technical content, the achieved purpose and the effect of the present utility model in detail, the following will be described in conjunction with the embodiments and accompanying drawings.

The most critical idea of the utility model is: the structure of the hand-tearing position on the foam glue release layer is designed as a one-end disconnection type, and the foam glue layering and overall separation will not occur when tearing the hand-tearing position, which is suitable for "Back" font and easy layered foam glue.

Please refer to Figure 4 and Figure 5, a foam glue structure, including a first release layer, a first adhesive layer and a foam layer, the first release layer is provided with a first tear position, the first Tear the bit with one hand and disconnect the other end.

It can be seen from the above description that the beneficial effect of the utility model is that: the first hand-tear position is designed on the first release layer of the foam glue, and one end is disconnected. When the release layer needs to be peeled off, only the hand-tear One end of the hand-tearing position is disconnected, and the stress is relatively concentrated, so there will be no delamination of the foam glue and the overall detachment.

Further, a second adhesive layer is also included.

Further, it also includes a second release layer, the second release layer is provided with a second hand-tear position, and one end of the second hand-tear position is broken.

It can be known from the above description that the foam adhesive can be either single-sided adhesive or double-sided adhesive.

Further, the first release layer is attached to the first adhesive layer, and the second release layer is attached to the second adhesive layer; the foam layer is located between the first adhesive layer and the second adhesive layer. between the glue layers.

Further, the release layer is in the shape of "Hui" as a whole.

Further, the hand-tear position on the release layer extends into the "back" shape.

It can be seen from the above description that the hand-tearing part is part of the release layer and is located inside the "back" font, which will not take up extra space. We can design the hand-tearing part at any position inside the "back" font according to needs.

Further, the shape of the hand-tearable bit is rectangular or U-shaped.

It can be seen from the above description that the shape and size of the hand-tearing position can be designed according to specific needs.

Further, the foam layer is in the shape of "back".

Further, the release layer is a release paper or a release film.

Example

Please refer to Figure 4 and Figure 5, the first embodiment of the present invention is: a "back" double-sided foam glue structure, including the first release layer 11, the first adhesive layer 21 and the foam layer 3 , the first release layer 11 is provided with a first hand-tear position 40, one end of the first hand-tear position 40 has a disconnection structure 41, the foam glue also includes a second adhesive layer 22 and a second release layer 12, the second The second release layer 12 is provided with a second hand-tear position 42, and one end is disconnected. The foam layer 3 is located between the first adhesive layer 21 and the second adhesive layer 22, the first release layer 11 and the first adhesive layer 21 are attached, the second release layer 12 and the second adhesive layer 22 fit together.

In this embodiment, the foam layer 3 is in the shape of "back", the hand-tearable part and the release layer are in the shape of "back" as a whole, and the first hand-tearable part 40 and the second hand-tearable part 42 are both U-shaped. And extend to the "back" font. When it is necessary to separate the first release layer 11 or the second release layer 12, you only need to tear the hand-tear position 40 or 42, and the hand-tear position 43 is concentrated in two places, the release layer can be separated quickly, and will not Foam glue delamination and overall detachment occur.

The release layer can be a release paper or a release film. The release film is, for example, coating a layer of silicone oil (release agent) on PET and PE films, which can be divided into single-sided release film and double-sided release film; release paper is, for example, coated with silicone oil on one side of the base paper (Release agent).

To sum up, in the foam glue structure provided by the utility model, a hand-tear position is designed on the release layer, and one end of the hand-tear position is disconnected. When the release layer needs to be separated, only the hand-tear Tear off for quick separation. And the design of one end of the hand-tearing position is disconnected, so that the stress points are concentrated in two places, which is suitable for the "back" font and easy-to-layer foam glue, and there will be no foam glue delamination and overall separation. The structure design of the hand-tearing position is simple, the production efficiency is high, and it is suitable for large-scale production.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent transformations made by using the utility model specification and accompanying drawings, or directly or indirectly used in related technical fields, are all the same. The theory is included in the patent protection scope of the present utility model.

Claims (7)

1. a kind of foam plastic structure, including the first release layer, the first gum layer and foamed cotton layer, described first release layer is provided with first Hand tears position it is characterised in that described first-hand one end of tearing disconnects, and described release layer is in integrally " returning " font, described release layer On hand tear position and extend in " returning " font.

2. foam plastic structure according to claim 1 is it is characterised in that also include the second gum layer.

3., it is characterised in that also including the second release layer, described second is release for foam plastic structure according to claim 2 Layer is provided with second-hand and tears position, and described second-hand tears one end and disconnects.

4. foam plastic structure according to claim 3 is it is characterised in that described first release layer and the first gum layer paste Close, described second release layer is fitted with the second gum layer；Described foamed cotton layer is located between the first gum layer and the second gum layer.

5. the foam plastic structure according to any one of Claims 1-4 it is characterised in that described hand tear position be shaped as rectangular Shape or u shape.

6. the foam plastic structure according to any one of Claims 1-4 is it is characterised in that described foamed cotton layer is in " returning " font.

7. the foam plastic structure according to any one of Claims 1-4 it is characterised in that described release layer be release liners or Mould release membrance.