Waterproof foam tape

Abstract

The utility model belongs to the technical field of foam adhesive tapes, and particularly relates to a waterproof foam adhesive tape which comprises a first adhesive layer, a first heat insulation layer, a waterproof layer, a foam base layer, a second heat insulation layer and a second adhesive layer which are sequentially stacked from top to bottom, a tensile layer is embedded in the foam base layer and comprises a plurality of first tensile strips and a plurality of second tensile strips; the multiple first tensile strips are arranged in the length direction of the foam base layer, the multiple second tensile strips are arranged in the width direction of the foam base layer, and the multiple first tensile strips and the multiple second tensile strips are sequentially connected to form a net structure; the interior of the foam base layer is sequentially connected through the multiple first tensile strips and the multiple second tensile strips to form a net-shaped structure, the tensile property is good, and the waterproof foam adhesive tape is not prone to breakage or deformation when being pulled. The first heat insulation layer and the second heat insulation layer both play a heat insulation role, heat transferred from an electronic product to the interior of the waterproof foam tape can be effectively reduced, aging is not prone to occurring, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of foam tapes, in particular to a waterproof foam tape. Background Art

[0002] Foam tape is made of EVA material or PE foam as the base material, with solvent-based (or hot-melt) pressure-sensitive adhesive coated on one or both sides and then covered with release paper. It has the functions of sealing and shock absorption, and has excellent sealing, compression deformation resistance, flame retardancy, wettability, etc. Foam tape products are widely used in electronic and electrical products, mechanical parts, various small household appliances, mobile phone accessories, industrial instruments, computers and peripheral equipment, auto parts, audio-visual equipment, toys, cosmetics, etc.

[0003] For example: Chinese utility model patent application number CN201320593208.X discloses a waterproof foam tape, including a foam substrate, an adhesive coating and a release paper layer; wherein the foam substrate is provided with an adhesive coating and a release paper layer on both sides, and the release paper layer is provided in the adhesive coating; a waterproof layer is provided in the foam substrate, and a dividing line is provided on the surface of the release paper layer. In the utility model, a waterproof layer is provided in the foam substrate, which effectively improves the waterproof performance of the tape, prevents the peeling strength of the tape from rising rapidly, and strengthens the fixed connection of accessories.

[0004] However, the above-mentioned waterproof foam tape still has the following shortcomings: the foam tape has poor tensile resistance, is easily torn and deformed during use, has low structural stability, and its heat insulation and buffering properties need to be improved. Utility Model Content

[0005] The utility model aims to provide a waterproof foam tape, aiming to solve one of the technical problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, an embodiment of the utility model provides a waterproof foam tape, comprising a first adhesive layer, a first thermal insulation layer, a waterproof layer, a foam base layer, a second thermal insulation layer and a second adhesive layer stacked in sequence from top to bottom; a pull-resistant layer is embedded in the foam base layer, and the pull-resistant layer comprises a plurality of first pull-resistant strips and a plurality of second pull-resistant strips; a plurality of the first pull-resistant strips are arranged along the length direction of the foam base layer, and a plurality of the second pull-resistant strips are arranged along the width direction of the foam base layer, and a plurality of the first pull-resistant strips and a plurality of the second pull-resistant strips are sequentially connected to form a mesh structure.

[0007] Optionally, the cross-sections of the first tensile strip and the second tensile strip are both circular, and the diameter of the first tensile strip is greater than the diameter of the second tensile strip.

[0008] Optionally, the first tensile strip and the second tensile strip are made of tensile-resistant fiber.

[0009] Optionally, a plurality of buffer grooves are arranged on the upper surface and the lower surface of the waterproof layer along the length direction thereof.

[0010] Optionally, a plurality of buffer holes are arranged inside the waterproof layer along its length direction.

[0011] Optionally, the buffer hole and the buffer groove are arranged in a staggered manner.

[0012] Optionally, an electromagnetic shielding layer is embedded in both the first thermal insulation layer and the second thermal insulation layer.

[0013] Optionally, the first thermal insulation layer and the second thermal insulation layer are both glass fiber layers.

[0014] Optionally, a side of the first adhesive layer away from the first heat-insulating layer and a side of the second adhesive layer away from the second heat-insulating layer are both covered with a release film.

[0015] Optionally, one end of the release film extends outward to form a tearing portion.

[0016] Compared with the prior art, the above one or more technical solutions in the waterproof foam tape provided by the embodiment of the utility model have at least one of the following technical effects:

[0017] The interior of the foam base layer is connected in sequence by multiple first tensile strips and multiple second tensile strips to form a mesh structure. The tensile layer of the mesh structure is firmly connected and has good tensile resistance, so that the waterproof foam tape is not easy to break or deform when pulled, and the structure is stable.

[0018] The first thermal insulation layer and the second thermal insulation layer both play a role of thermal insulation, which can effectively reduce the heat transferred from the electronic products to the inside of the waterproof foam tape, improve the heat resistance of the waterproof foam tape, make it less prone to aging, and increase its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a cross-sectional view of the waterproof foam tape of the utility model.

[0021] Figure 2 It is a schematic structural diagram of the pull-resistant layer of the utility model.

[0022] Among them, the reference numerals in the figure are:

[0023] 100, a first adhesive layer;

[0024] 200, first thermal insulation layer;

[0025] 300, waterproof layer; 310, buffer groove; 320, buffer hole;

[0026] 400, foam base layer; 410, tensile layer; 411, first tensile strip; 412, second tensile strip;

[0027] 500, second thermal insulation layer;

[0028] 600, second adhesive layer;

[0029] 700, electromagnetic shielding layer;

[0030] 800, release film; 810, tearing portion. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0032] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0034] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0035] In one embodiment of the present invention, referring to Figure 1 and Figure 2 , providing a waterproof foam tape, including a first adhesive layer 100, a first thermal insulation layer 200, a waterproof layer 300, a foam base layer 400, a second thermal insulation layer 500 and a second adhesive layer 600 stacked in sequence from top to bottom.

[0036] Among them, refer to Figure 1 and Figure 2 The foam base layer 400 is embedded with a tensile layer 410, and the tensile layer 410 includes a plurality of first tensile strips 411 and a plurality of second tensile strips 412. The plurality of first tensile strips 411 are arranged along the length direction of the foam base layer 400, and the plurality of second tensile strips 412 are arranged along the width direction of the foam base layer 400, and the plurality of first tensile strips 411 and the plurality of second tensile strips 412 are sequentially connected to form a mesh structure.

[0037] Compared with the prior art, the above one or more technical solutions in the waterproof foam tape provided by the embodiment of the utility model have at least one of the following technical effects:

[0038] Reference Figure 1 and Figure 2 The interior of the foam base layer 400 is connected in sequence by multiple first tensile strips 411 and multiple second tensile strips 412 to form a network structure. The tensile layer 410 of the network structure is firmly connected and has good tensile (tensile) resistance. The waterproof foam tape is not easy to break or deform when pulled, and the structure is stable.

[0039] Reference Figure 1 and Figure 2 The first heat insulation layer 200 and the second heat insulation layer 500 both play a heat insulation role, which can effectively reduce the heat transferred from the electronic products to the inside of the waterproof foam tape, improve the heat resistance of the waterproof foam tape, make it less prone to aging, and increase its service life.

[0040] Further, refer to Figure 1 and Figure 2The cross-sections of the first tensile strip 411 and the second tensile strip 412 are both circular, and the diameter of the first tensile strip is larger than the diameter of the second tensile strip. The diameter of the first tensile strip is set larger than the diameter of the second tensile strip 412, so that the waterproof foam tape has better tensile strength in the length direction, is not easy to break or deform, and has a stable structure.

[0041] Further, refer to Figure 1 and Figure 2 The first tensile strip 411 and the second tensile strip 412 are made of tensile-resistant fibers, which have high tensile strength, so that the tensile-resistant layer 410 has good tensile resistance. The tensile-resistant fibers can be polypropylene fibers.

[0042] In another embodiment of the present invention, referring to Figure 1 and Figure 2 The upper surface and the lower surface of the waterproof layer 300 are both provided with a plurality of buffer grooves 310 along the length direction thereof. The buffer grooves 310 play a buffering role. When the waterproof foam tape is squeezed, the plurality of buffer grooves 310 provide buffering, thereby improving the buffering performance of the waterproof foam tape.

[0043] Further, refer to Figure 1 and Figure 2 The waterproof layer 300 has a plurality of buffer holes 320 arranged along its length direction. When the waterproof foam tape is squeezed, the plurality of buffer holes 320 and the plurality of buffer grooves 310 provide buffering, thereby further improving the buffering performance of the waterproof foam tape.

[0044] Further, refer to Figure 1 and Figure 2 The buffer hole 320 and the buffer groove 310 are staggered so that the buffer structure is evenly distributed in the waterproof layer 300, and the buffer effect is good.

[0045] Further, refer to Figure 1 and Figure 2 The waterproof layer 300 is a water-absorbent cotton layer, which absorbs moisture entering from the outside to achieve a waterproof function.

[0046] In another embodiment of the present invention, referring to Figure 1 and Figure 2 The first heat insulation layer 200 and the second heat insulation layer 500 are both embedded with an electromagnetic shielding layer 700. Specifically, the electromagnetic shielding layer 700 is a copper foil layer, which can play an electromagnetic shielding and antistatic role, and is conducive to application in electronic products. The thickness of the copper foil layer is 20μm to 40μm.

[0047] In another embodiment of the present invention, referring to Figure 1 and Figure 2 The first insulation layer 200 and the second insulation layer 500 are both glass fiber layers, which have the advantages of good insulation and strong heat resistance. The glass fiber layer can effectively reduce the heat transferred from the electronic products to the inside of the waterproof foam tape, improve the heat resistance of the waterproof foam tape, and is not easy to age, thereby increasing the service life.

[0048] In another embodiment of the present invention, referring to Figure 1 and Figure 2 , the first adhesive layer 100 and the second adhesive layer 600 are both covered with a release film 800. The release film 800 covers the surfaces of the first adhesive layer 100 and the second adhesive layer 600, so that the first adhesive layer 100 and the second adhesive layer 600 are not easy to be stuck with dust during transportation and storage of the waterproof foam tape, which plays a good protective role for the waterproof foam tape. The first adhesive layer 100 and the second adhesive layer 600 can both be pressure-sensitive adhesives.

[0049] Further, refer to Figure 1 and Figure 2 One end of the release film 800 extends outward to form a tearing portion 810. When the waterproof foam tape is used, the tearing portion 810 facilitates the user to tear off the release film 800, thereby facilitating operation.

[0050] Reference Figure 1 and Figure 2 During production, the electromagnetic shielding layer 700 is embedded in the first thermal insulation layer 200 and the second thermal insulation layer 500, and the pull-resistant layer 410 is embedded in the foam base layer 400; then the first thermal insulation layer 200 is bonded to the upper surface of the waterproof layer 300, the first adhesive layer 100 is bonded to the upper surface of the first thermal insulation layer 200, and the upper surface of the first adhesive layer 100 is covered with a layer of release film 800; then the foam base layer 400 is bonded to the lower surface of the waterproof layer 300, the second thermal insulation layer 500 is bonded to the lower surface of the foam base layer 400, the second adhesive layer 600 is bonded to the lower surface of the second thermal insulation layer 500, and the lower surface of the second thermal insulation layer 500 is covered with a layer of release film 800.

[0051] The rest of this embodiment is the same as the first embodiment. The features not explained in this embodiment are all based on the explanations in the first embodiment and will not be described in detail here.

[0052] The above content is a further detailed description of the utility model in combination with specific preferred implementation methods, and it cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, its architecture can be flexible and can derive a series of products. Just making a few simple deductions or substitutions should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A waterproof foam tape, characterized in that: It includes a first adhesive layer, a first heat-insulating layer, a waterproof layer, a foam base layer, a second heat-insulating layer and a second adhesive layer stacked in sequence from top to bottom; a pull-resistant layer is embedded in the foam base layer, and the pull-resistant layer includes a plurality of first pull-resistant strips and a plurality of second pull-resistant strips; a plurality of the first pull-resistant strips are arranged along the length direction of the foam base layer, a plurality of the second pull-resistant strips are arranged along the width direction of the foam base layer, and a plurality of the first pull-resistant strips and a plurality of the second pull-resistant strips are sequentially connected to form a mesh structure.

2. The waterproof foam tape according to claim 1, characterized in that: The cross sections of the first tensile strip and the second tensile strip are both circular, and the diameter of the first tensile strip is greater than the diameter of the second tensile strip.

3. The waterproof foam tape according to claim 1, characterized in that: The first tensile strip and the second tensile strip are made of tensile-resistant fibers.

4. The waterproof foam tape according to claim 1, characterized in that: A plurality of buffer grooves are arranged on the upper surface and the lower surface of the waterproof layer along the length direction thereof.

5. The waterproof foam tape according to claim 4, characterized in that: The waterproof layer is provided with a plurality of buffer holes arranged along its length direction.

6. The waterproof foam tape according to claim 5, characterized in that: The buffer hole and the buffer groove are arranged in a staggered manner.

7. The waterproof foam tape according to any one of claims 1 to 6, characterized in that: An electromagnetic shielding layer is embedded in both the first heat insulation layer and the second heat insulation layer.

8. The waterproof foam tape according to any one of claims 1 to 6, characterized in that: The first heat insulating layer and the second heat insulating layer are both glass fiber layers.

9. The waterproof foam tape according to any one of claims 1 to 6, characterized in that: A side of the first adhesive layer away from the first heat insulating layer and a side of the second adhesive layer away from the second heat insulating layer are both covered with a release film.

10. The waterproof foam tape according to claim 9, characterized in that: One end of the release film extends outward to form a tearing portion.

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