CN219099037U

CN219099037U - Double-sided adhesive tape with release piece

Info

Publication number: CN219099037U
Application number: CN202223205779.XU
Authority: CN
Inventors: 黄培涛
Original assignee: Suzhou Jincheng Electronic Technology Co ltd
Current assignee: Suzhou Jincheng Electronic Technology Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-05-30
Anticipated expiration: 2032-12-01

Abstract

The application discloses double faced adhesive tape with from type spare, be in including double faced adhesive tape body, setting the light backing film that peels off of the first face of double faced adhesive tape body sets up the heavy release of the second face of double faced adhesive tape body is gone up from the type membrane, still including preventing to tear the reverse type of separating of hand fracture from the type spare, from the type spare set up in the tear hand position of double faced adhesive tape, from the type spare including the substrate layer, the first surface of substrate layer is provided with highly adhesive coating, the second surface of substrate layer is provided with from the type coating, just from the type spare highly adhesive coating laminating in the heavy release is gone up from the tear hand position of type membrane, from the type coating laminating in the tear hand position of double faced adhesive tape body, consequently can avoid tearing the hand and drop, and can prevent to tear the hand reverse type, improve work efficiency, promote the product yield.

Description

Double-sided adhesive tape with release piece

Technical Field

The utility model relates to the technical field of auxiliary tools of electronic products, in particular to double-sided adhesive tape with release pieces.

Background

The double-sided adhesive product is widely applied to the fixing and attaching processes of various electronic products, has the characteristics of lamellar thinness, has various shapes, is spread on various parts inside the electronic products, and can meet the effects of quick tearing, quick assembly and shaping after attaching and improvement of production efficiency. For example, the fixing between the screen and the backlight source of the mobile phone needs to use double faced adhesive tape, and in the assembly process of the internal chip, the signal module, the display screen, the battery and other components, the double faced adhesive tape is used for fixing, so as to meet the requirement of light and thin mobile phone.

The structure of the double faced adhesive tape is divided into three layers: the first layer is a heavy-peeling upper release film with a tearing hand, the second layer in the middle is double-sided adhesive tape, and the third layer is a light-peeling bottom film, wherein the heavy-peeling upper release film with the tearing hand and the double-sided adhesive tape are tightly attached to the die cutting and then are attached to the bottom film in a die cutting mode. The heavy peeling release film with the tearing hand is a main accessory of the double-sided adhesive tape, and whether the tearing hand is reversely released or easily broken is very important for the double-sided adhesive tape.

The existing double-sided adhesive tape manufacturing process generally uses a cutter to cut out the required length and width after three layers of heavy stripping release film, double-sided adhesive tape and light stripping bottom film are attached, however, two sides of a product need to be fully cut, a middle tearing hand needs to be half-cut to the heavy stripping release film, a half-cut position of the heavy stripping release film can have a cutter mark, when the tearing hand needs to be torn in the process of fast assembly and attachment of electronic product assembly personnel, the situation that the tear hand of release film has the tool mark is broken or reverse from the type appears in the heavy peeling, specifically, just the long-term laminating of release film on double faced adhesive tape and the heavy peeling leads to tearing outside the hand and is difficult to peel, the reverse release type double faced adhesive tape that pastes is followed heavy peeling and is gone up release film again and tear or tear the hand and break, causes product to scrap or be bad, and laminate again and can seriously influence work efficiency, leads to the defective rate to rise, the man-hour of consumption increases.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the double faced adhesive tape with the release piece, which can prevent the tearing hand from falling off, prevent the tearing hand from reversely releasing, improve the working efficiency and improve the product yield.

The double-sided adhesive tape with the release piece comprises a double-sided adhesive tape body, a light release bottom film arranged on the first surface of the double-sided adhesive tape body, a release film arranged on the heavy release top of the second surface of the double-sided adhesive tape body, and a release piece for preventing reverse release caused by tearing of a tearing hand, wherein the release piece is arranged at the tearing hand position of the double-sided adhesive tape, the release piece comprises a substrate layer, a high-adhesion coating is arranged on the first surface of the substrate layer, a release coating is arranged on the second surface of the substrate layer, the high-adhesion coating of the release piece is attached to the tearing hand position of the heavy release top release film, and the release coating of the release piece is attached to the tearing hand position of the double-sided adhesive tape body.

Preferably, in the double faced adhesive tape with the release piece, the length of the release piece is 15mm to 50mm.

Preferably, in the double sided tape with a release member, the substrate layer is a PET film layer.

Preferably, in the double-sided tape with the release member, the thickness of the base material layer ranges from 0.025mm to 0.035mm.

Preferably, in the double sided tape with the release piece, the high-viscosity coating is a high-viscosity silica gel coating.

Preferably, in the double-sided tape with a release member described above, the thickness of the high-adhesion coating layer ranges from 0.01mm to 0.02mm.

Preferably, in the double faced adhesive tape with the release piece, the release coating is a release silicone oil coating.

Preferably, in the double-sided tape with the release member, the thickness of the release coating layer ranges from 0.003mm to 0.01mm. According to the technical scheme, the double-sided adhesive tape with the release piece comprises the double-sided adhesive tape body, the light release bottom film arranged on the first surface of the double-sided adhesive tape body, and the release film arranged on the heavy release of the second surface of the double-sided adhesive tape body, and further comprises the release piece for preventing the release of reverse release caused by the breakage of the release hand, wherein the release piece is arranged at the release position of the double-sided adhesive tape, the release piece comprises a substrate layer, the first surface of the substrate layer is provided with a high-viscosity coating, the second surface of the substrate layer is provided with the release coating, the high-viscosity coating of the release piece is attached to the release position of the release film on the heavy release, and the release coating of the release piece is attached to the release position of the double-sided adhesive tape body.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of an embodiment of a release member for preventing reverse release by hand tearing according to the present utility model;

fig. 2 is a schematic cross-sectional view of an embodiment of a double-sided adhesive tape with release members according to the present utility model.

Detailed Description

The core of the utility model is to provide the double faced adhesive tape with the release piece, which can prevent the tearing hand from falling off, prevent the tearing hand from reversely releasing, improve the working efficiency and improve the product yield.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

An embodiment of a release member for preventing reverse release caused by hand tearing is shown in fig. 1, and fig. 1 is a schematic cross-sectional view of an embodiment of a release member for preventing reverse release caused by hand tearing, which is provided by the utility model, and the release member may include a substrate layer 1, a high-viscosity coating 2 is disposed on a first surface of the substrate layer 1, and a release coating 3 is disposed on a second surface of the substrate layer 1.

It should be noted that the substrate layer may be a PET film layer, and the thickness of the substrate layer may preferably range from 0.025mm to 0.035mm, so that the substrate layer can be ensured to have a sufficiently high strength, so as to provide effective support for the other two layers, and of course, other types of substrate layers may be selected according to actual needs, which is not limited herein. The high-viscosity coating 2 may be, but not limited to, a high-viscosity silica gel coating, the viscosity of which may be preferably 500g/25mm, and the thickness of which may be preferably in the range of 0.01mm to 0.02mm, and the high-viscosity silica gel coating may be tightly adhered to double-sided adhesive tape without falling off, thereby playing roles of heightening, reinforcing and buffering. The release coating 3 may preferably be a release silicone oil coating, the peel force thereof is ultra-light, preferably 3g/25mm to 5g/25mm, and the thickness range of the release coating 3 may preferably be 0.003mm to 0.01mm, and the release coating layer may be bonded with double-sided tape to ensure that the release coating is not too tight, thereby preventing reverse release of the tear. The width of the release piece of the structure can be preferably 15mm, and the release piece is attached to the starting position of the release film on the heavy stripping of the double-sided tape tearing hand, so that the double-sided tape tearing hand can be lifted, thickened, reinforced, buffered and prevented from breaking.

It should be noted that, the surface of the above-mentioned high-viscosity coating 2 may also be covered with a release film by using silica gel, which is used to prevent the high-viscosity coating 2 from adhering to other articles, when the release member is needed, the release film for silica gel may be torn off first and then adhered to the corresponding tear position on the double-sided adhesive tape.

According to the technical scheme, in the embodiment of the release piece for preventing the tearing hand from breaking and reversely releasing, the release piece comprises the substrate layer, the high-viscosity coating is arranged on the first surface of the substrate layer, and the release coating is arranged on the second surface of the substrate layer, so that the release piece is arranged at the tearing hand position of the double-sided adhesive, the high-viscosity coating is connected with the release film on the heavy stripping of the tearing hand position, and therefore the tearing hand can be prevented from falling off, the tearing hand is prevented from reversely releasing, the working efficiency is improved, and the product yield is improved.

Fig. 2 is a schematic cross-sectional view of an embodiment of a double-sided adhesive tape with a release member, where the double-sided adhesive tape may include a double-sided adhesive tape body 4, a light release bottom film 5 disposed on a first surface of the double-sided adhesive tape body 4, a heavy release top release film 6 disposed on a second surface of the double-sided adhesive tape body 4, and a release member 7 for preventing reverse release by breaking a release hand, where the release member 7 is disposed at a release position of the double-sided adhesive tape, and a high-adhesive coating of the release member 7 is attached to the release position of the heavy release top release film 6, and a release coating of the release member 7 is attached to the release position of the double-sided adhesive tape body 4.

When the release film is used, the release film for the silica gel on the surface of the high-viscosity silica gel coating on the release piece 7 can be firstly removed, the surface of the high-viscosity silica gel coating is attached to the release film on heavy peeling, the adhesive of the surface of the high-viscosity silica gel coating is strong and is about 500g/25mm, the release film 6 is attached to the position of a tearing hand of the release surface on heavy peeling, the release film 6 can be firmly attached to the heavy peeling, the release film is difficult to peel, the phenomena of offset and falling of the release piece cannot occur, the peeling force of the release silicone oil coating surface of the release piece 7 is extremely light, the peeling force is about 3-5g/25mm, the release silicone oil coating surface is attached to the position of the tearing hand of the double-sided adhesive body 4, and the reverse release phenomenon occurs when the release film 6 on heavy peeling is prevented, and the reverse release phenomenon is the phenomenon that the release film 6 is removed by the double-sided adhesive body 4 following heavy peeling.

In one embodiment of the above-described double sided adhesive with release member, the length of the release member 7 may preferably be 15mm to 50mm, which of course may be selected according to the specific size of the tearing hand, and is not limited thereto.

In summary, in the embodiment of the double sided adhesive tape provided by the utility model, compared with the existing double sided adhesive tape structure, a release piece is added, and the release piece can play roles in heightening, reinforcing and buffering, so that in the die cutting process, a knife edge can fall on the release piece, and the release film is peeled again to serve as a bearing film, and the damage of the knife edge is avoided under the heightening, reinforcing and buffering effects of the release piece, and the breakage is avoided; the extra light surface laminating of this from type spare and rubber face has also guaranteed that the double faced adhesive tape is when starting, can not tear heavy and peel off the release film when taking up the double faced adhesive tape body and mending the rubberizing again to guaranteed that the subsequent processing can go on smoothly, just so can improve yield and production efficiency, also avoided the cover towards, reduced the dual cost of manual work and other auxiliary material.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a double faced adhesive tape with from type spare, its characterized in that, is in including double faced adhesive tape body, setting are in the light backing film that peels off of the first face of double faced adhesive tape body sets up the heavy release of the second face of double faced adhesive tape body is gone up from the type membrane, still including preventing to tear the reverse type from type spare that breaks, from type spare set up in the tear hand position of double faced adhesive tape, from type spare includes the substrate layer, the first surface of substrate layer is provided with highly adhesive coating, the second surface of substrate layer is provided with from the type coating, just from the type spare highly adhesive coating laminating in the heavy release is gone up from the tear hand position of type membrane, from the type coating laminating in the tear hand position of double faced adhesive tape body.

2. The double sided adhesive with release member of claim 1, wherein the length of the release member is 15mm to 50mm.

3. The double sided adhesive with release member of claim 1, wherein the substrate layer is a PET film layer.

4. The release liner of claim 1, wherein the substrate layer has a thickness in the range of 0.025mm to 0.035mm.

5. The double sided adhesive with release member of claim 1, wherein the high tack coating is a high tack silicone coating.

6. The double sided adhesive with release member of claim 1, wherein the thickness of the high tack coating ranges from 0.01mm to 0.02mm.

7. The double sided adhesive tape with release member of claim 1, wherein the release coating is a release silicone oil coating.

8. The double sided adhesive with release member of claim 1, wherein the thickness of the release coating ranges from 0.003mm to 0.01mm.