High-strength durable double-sided tape

Abstract

The utility model relates to the field of double-sided tapes, and particularly discloses a high-strength durable double-sided tape which comprises a base material, release paper and glue layers coated on the upper surface and the lower surface of the release paper, the base material comprises two flame-retardant layers arranged in parallel and coating layers, and the coating layers are coated on the surfaces of the upper sides and the lower sides of the flame-retardant layers and on the surfaces close to each other. The glue layers are coated on the upper and lower surfaces of the coating layers, the coating layers are coated on the surface of the flame-retardant layer to enhance the strength of the flame-retardant layer, and the surfaces, close to each other, of the coating layers form a vertical surface, so that the tensile strength of the flame-retardant layer in the thickness direction is improved, and the service life of the double-sided tape is prolonged; the release paper can be uncovered from the base material by pulling the separation part, so that the contact between fingers and the glue layer is reduced, the viscosity influence of the fingers on the glue layer is reduced, and the flammability of the double-sided adhesive tape can be reduced by adding the phosphorus flame retardant flame-retardant layer.

Description

TECHNICAL FIELD

[0001] The utility model relates to double -sided adhesive tape field, concretely is high -strength durable double -sided adhesive tape. BACKGROUND

[0002] Among them, the foam double -sided adhesive is with foam as base material, and the glue is coated on the foam base material to form, because the thickness of foam double -sided adhesive is thicker than the thickness of ordinary double -sided adhesive, wherein the base material thickness occupies most, the strength in the thickness direction of foam double -sided adhesive depends on the strength of foam, and the tensile strength of foam is lower, so in the use of foam double -sided adhesive, if the external force is pulled, the foam base material is easy to tear from the middle along its length direction, and the sticking strength is lower.

[0003] Therefore, it is necessary to design a high-strength durable double-sided adhesive tape to alleviate the above problems. INVENTION CONTENTS

[0004] The utility model discloses a high-strength durable double-sided adhesive tape, which is used to overcome the above-mentioned defects in the prior art.

[0005] According to the high-strength durable double-sided adhesive tape of the utility model, including base material, release paper and glue layer coated on the upper and lower surfaces of release paper, the base material includes two parallelly arranged fire -retardant layer and cladding layer, the cladding layer is covered on the upper and lower side surfaces of the fire -retardant layer and the side close to each other, the glue layer is coated on the upper and lower surfaces of the cladding layer.

[0006] Through the above technical scheme, the cladding layer is covered on the surface of the fire -retardant layer, which can enhance the strength of the fire -retardant layer, and the side close to each other of the cladding layer forms a vertical surface, thereby improving the tensile strength of the fire -retardant layer in its thickness direction, thereby enhancing the service life of the double -sided adhesive tape.

[0007] The utility model further sets up as: the cladding layer is made of non -woven fabric and is " C " shape, and the opening of two cladding layers faces outward.

[0008] Through the above technical scheme, the cladding layer made of non -woven fabric can enhance the tensile strength of the fire -retardant layer in its width and length directions.

[0009] The utility model further sets up as: the fire -retardant layer is made of foam, and the fire -retardant layer is bonded with the cladding layer by glue.

[0010] Through the above technical scheme, the fire -retardant layer of foam material can increase the shock strength of the double -sided adhesive tape, and the use of glue bonding in the cladding layer can increase the connection strength between the fire -retardant layer and the cladding layer.

[0011] The utility model further sets up: the interval exists between two the cladding layer, the glue layer penetrates into the interval forms vertical part, the glue layer is " G" shape.

[0012] Through the technical scheme, the vertical part of the glue layer bonds the side of the two cladding layers close to each other, increases the integrity of the base material, and the vertical part of the cladding layer improves the tensile strength inside the base material.

[0013] The utility model further sets up: the release paper upper and lower surfaces are all coated with release agent, and the release agent concentration on the upper surface of the release paper is higher than that on the lower surface.

[0014] Through the technical scheme, the release ability of the upper surface of the release paper is greater than that of the lower surface, so that when part of the double-sided adhesive tape in roll form is removed, the adhesion between the release paper and the base material is ensured, thereby avoiding the contamination of the glue layer on the base material by the fingers and reducing the adhesion of the glue layer.

[0015] The utility model further sets up: the release paper is formed into a double-layer structure by the surface release paper and the inner release paper, the release agent concentration on the upper surface of the surface release paper is higher than that on the lower surface of the inner release paper, and the lower surface of the inner release paper is attached to the base material.

[0016] Through the technical scheme, the double-layer structure increases the thickness of the release paper, so that when the release paper is peeled off, the contact area between the edge of the release paper and the fingertips is increased, and the release paper is easily peeled off from the base material.

[0017] The utility model further sets up: the surface release paper is pressed with indentation lines equidistantly distributed along the length direction, the indentation lines are " C" shape and the opening faces the length direction of the surface release paper, and the part of the surface release paper in the indentation lines forms a separable separation part.

[0018] Through the technical scheme, after the separation part is opened, the release paper can be peeled off from the base material by pulling the separation part, the contact between the fingers and the glue layer is reduced, and the adhesion of the glue layer by the fingers is reduced.

[0019] The utility model has the advantages that: the cladding layer is coated on the surface of the flame-retardant layer to enhance the strength of the flame-retardant layer, the side of the cladding layer close to each other forms a vertical surface, thereby improving the tensile strength of the flame-retardant layer in the thickness direction, and the service life of the double-sided adhesive tape is enhanced, after the separation part is opened, the release paper can be peeled off from the base material by pulling the separation part, the contact between the fingers and the glue layer is reduced, and the adhesion of the glue layer by the fingers is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1Is the structural schematic diagram of the utility model;

[0021] Figure 2 Is the utility model's explosion map.

[0022] In the drawing,

[0023] 10, flame retardant layer;11, cladding layer;20, surface layer release paper;21, separation part;22, inner layer release paper;30, glue layer. Specific embodiments

[0024] In the description of the utility model, it is understood that the terms '' up '' '' down '' '' front '' '' back '' '' left '' '' right '' '' vertical '' '' horizontal '' '' top '' '' bottom '' '' inside '' '' outside '' and the like indicate the orientation or positional relationship based on the accompanying drawings, and only for the convenience of the simplified description of the utility model, and not indicate or imply that the indicated device or element must have a particular orientation, structure and operation, therefore can not be understood as the limitation of the utility model. Figure 1

[0025] In order to make the purpose and the advantage of the utility model more clearly, the following specific description of the utility model is combined with examples, and it should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the protection scope of the utility model specifically requested, such as in this text, the terms up and down and left and right are not limited to its strict geometric definition, but include the reasonable and inconsistent tolerance for machining or human error, and the specific characteristics of the high-strength durable double-sided adhesive tape are described in detail as follows:

[0026] One embodiment of the utility model:

[0027] Refer to Figures 1-2 ​The utility model provides high -strength durable double -sided tape, including base material, release paper and glue layer 30 coated on the upper and lower surfaces of release paper, base material includes two parallelly arranged fire -retardant layer 10 and cladding layer 11, and the production raw material of fire -retardant layer 10 adds phosphorus fire -retardant agent, and then mixes uniformly and foams into shape, so that fire -retardant layer 10 has certain flame -retardant property, cladding layer 11 cladding is on the upper and lower two side surfaces of fire -retardant layer 10 and the side close to each other, glue layer 30 is coated on the upper and lower two sides of cladding layer 11, cladding layer 11 is made of non -woven fabric and presents " C " character, and the opening of two cladding layer 11 faces outward, first cladding layer 11 is cladded on the surface of fire -retardant layer 10, then two fire -retardant layer 10 after cladding cladding layer 11 is placed in parallel, and the opening of cladding layer 11 faces outward, then glue layer 30 is coated on the upper and lower two sides of cladding layer 11, and fire -retardant layer 10 is made of foam, in the utility model, fire -retardant layer 10 is in polyurethane adhesive bonding cladding layer 11, and polyurethane adhesive has higher adhesive strength and weather resistance, it usually has longer open time, allows accurate positioning and adjustment during the bonding process, it is convenient to adjust relative position during the process that cladding layer 11 cladding fire -retardant layer 10, before coating glue layer 30, when placing two cladding layer 11, interval is formed between two cladding layer 11, after coating glue layer 30, glue layer 30 penetrates into interval and forms vertical part, and glue layer 30 presents " G " character, so as to increase the connecting strength between two cladding layer 11, the upper and lower surfaces of release paper are coated with release agent, and the concentration of release agent on the upper surface of release paper is higher than the concentration of release agent on its lower surface, and the higher the concentration of release agent is, the higher its release ability is, so that the upper surface of release paper is more easily separated from glue layer 30, so as to facilitate taking down part on the roll -shaped double -sided tape, and release paper is formed double -layer structure by the adhesion of surface layer release paper 20 and inner layer release paper 22, and the concentration of release agent on the upper surface of surface layer release paper 20 is higher than the concentration of release agent on the lower surface of inner layer release paper 22, and the lower surface of inner layer release paper 22 is attached to the base material, before the adhesion of surface layer release paper 20 and inner layer release paper 22, first embossing line that is equidistantly distributed along the length direction of surface layer release paper 20 is pressed on surface layer release paper 20, and the embossing line presents " C " character and the opening faces the length direction of surface layer release paper 20, and the part of surface layer release paper 20 in the embossing line forms separable separation 21, then glue is coated on the part of the lower surface of surface layer release paper 20 except separation 21, then the lower surface of surface layer release paper 20 and the upper surface of inner layer release paper 22 are adhered, so that three edges of separation 21 can be separated from surface layer release paper 20, and one edge is connected with surface layer release paper 20, at this time, pulling separation 21 can peel release paper from glue layer 30.

[0028] Those skilled in the art can clearly understand that, without departing from the overall spirit and concept of the present application, various modifications can be made to the above embodiments. All fall within the scope of the present application. The protection scheme of the present application is subject to the claims attached to the present application.

Claims

1. A high-strength durable double-sided adhesive tape comprising a substrate, a release paper, and a glue layer (30) coated on both surfaces of the release paper, characterized in that: The substrate comprises two parallel arranged fire-retardant layers (10) and a cladding layer (11) cladded on the upper and lower surfaces of the fire-retardant layers (10) and one side surface close to each other, and the glue layer (30) is coated on the upper and lower surfaces of the cladding layer (11).

2. The high-strength, durable double-sided tape of claim 1, wherein: The cladding layer (11) is made of non-woven fabric and is in the shape of "C", and the openings of the two cladding layers (11) face outward.

3. The high-strength, durable double-sided tape of claim 2, wherein: The fire-retardant layer (10) is made of foam, and the fire-retardant layer (10) is bonded with the cladding layer (11) by glue.

4. The high-strength, durable double-sided tape of claim 2, wherein: There is a gap between the two cladding layers (11), and the glue layer (30) penetrates into the gap to form a vertical part, and the glue layer (30) is in the shape of "H".

5. The high-strength, durable double-sided tape of claim 1, wherein: The release paper is coated with release agent on both surfaces, and the concentration of the release agent on the upper surface of the release paper is higher than that on the lower surface.

6. The high-strength, durable double-sided tape of claim 5, wherein: The release paper is made of a surface release paper (20) and an inner release paper (22) bonded to form a double-layer structure, the concentration of the release agent on the upper surface of the surface release paper (20) is higher than that on the lower surface of the inner release paper (22), and the lower surface of the inner release paper (22) is attached to the substrate.

7. The high-strength, durable double-sided tape of claim 6, wherein: The surface release paper (20) is pressed with indentation lines equidistantly distributed along the length direction thereof, the indentation lines are in the shape of "C" and the openings thereof face the length direction of the surface release paper (20), and the part of the surface release paper (20) located in the indentation lines forms a separable separation part (21).

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