CN213388480U - Square ultrathin exhaust adhesive tape - Google Patents

Abstract

The utility model discloses a square ultra-thin exhaust sticky tape, from the type layer including light, the downside that light leaves the type layer is equipped with plain noodles glue film, PET substrate, square glue film in proper order and heavily leaves the type layer, light is the polyethylene terephthalate membrane from the type layer, polyethylene terephthalate membrane surface coating has silicone polymer, light thickness from the type layer is 25 μm, plain noodles glue film thickness is 2 ~ 8 μm, the PET substrate is the polyethylene terephthalate membrane, PET substrate thickness is 1.5 ~ 5 μm. The utility model discloses create the square ultra-thin exhaust sticky tape that designs, not only the air discharge is good, stable in structure places for a long time in addition and can not lead to the air discharge to disappear yet, like this not only reduce cost but also environmental protection more, and the settlement that utilizes square gluey piece and various relevant parameters makes plastics backshell, various board backshell be obeyed the nature better.

Description

Square ultrathin exhaust adhesive tape

Technical Field

The utility model relates to an exhaust sticky tape technical field especially relates to a square ultra-thin exhaust sticky tape.

Background

The square ultrathin high-viscosity exhaust adhesive tape is an adhesive tape which has long-term high exhaust performance due to special square design on the use surface of a client, is mainly applied to fixing of nanocrystals in the wireless charging industry and fixing of graphite radiating fins in the heat dissipation industry, and has diversified requirements along with back-pasted objects, wherein the commonly used back-pasted objects comprise magnesium aluminum alloy, a steel sheet, a plastic rear shell, a color plate rear shell, glass and the like. The adhesive tape is required to be thinner and higher in viscosity, and is free of bubbles when being attached to a large area.

In order to ensure the viscosity, the acrylic adhesive layer is designed to be a smooth flat adhesive layer in the mainstream ultrathin adhesive tape in the current market, and the large-area sticking has the defects of no air discharge, bubble generation and the like. Embossing the grid release film to improve the air release performance, wherein the air release performance is improved to a certain extent, but the embossing is gradually disappeared to lose the air release performance along with the standing time (1-3 months), and a layer of grid release film is wasted; and the plastic back shell and the color plate back shell are poor in fit.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving following shortcoming among the prior art, along with the time of placing (1 ~ 3 months), the impressed watermark can slowly disappear and lose the air discharge, and extravagant one deck net is from the type membrane, and plastics backshell, color plate backshell subsides clothes are poor, and the square ultra-thin exhaust sticky tape that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a square ultrathin exhaust adhesive tape comprises a light release layer, wherein a smooth flat adhesive layer, a PET (polyethylene terephthalate) substrate, a square adhesive layer and a heavy release layer are sequentially arranged on the lower side of the light release layer, the light release layer is a polyethylene terephthalate film, the surface of the polyethylene terephthalate film is coated with a silicone polymer, the thickness of the light release layer is 25 micrometers, the thickness of the smooth flat adhesive layer is 2-8 micrometers, the PET substrate is the polyethylene terephthalate film, the thickness of the PET substrate is 1.5-5 micrometers, the square adhesive layer is formed by uniformly and densely distributing a plurality of square adhesive blocks on the surface of the PET substrate, an exhaust channel is formed between every two adjacent square adhesive blocks, the diagonal of each square adhesive block is 1.5-2.5 mm, the exhaust channel is 50-200 micrometers, the gluing thickness of the square adhesive layer is 3-10 micrometers, and the heavy release layer is a polyethylene terephthalate film, the surface of the polyethylene terephthalate film is coated with a silicone polymer, and the thickness of the heavy release layer is 36 mu m.

Preferably, the thickness of the smooth surface flat rubber layer is 3 μm.

Preferably, the PET substrate has a thickness of 1.5 μm.

Preferably, the diagonal line of the square rubber block is 1.5mm, the exhaust channel is 80 μm, and the gluing thickness of the square rubber layer is 4.5 μm.

Compared with the prior art, the beneficial effects of the utility model are that:

the square ultrathin exhaust adhesive tape designed by the invention has good exhaust performance and stable structure, and the exhaust performance can not disappear after being placed for a long time, so that the cost is reduced, the environment is more environment-friendly, and the plastic rear shell and the color plate rear shell have better adhesion performance by utilizing the square adhesive blocks and setting of various related parameters.

Drawings

Fig. 1 is a schematic view of a partial cross-sectional structure of a square ultra-thin exhaust adhesive tape provided by the present invention;

fig. 2 is a partial cross-sectional view of a square bond line.

In the figure: 1 light release layer, 2 smooth surface flat glue layers, 3PET substrate, 4 square glue layers, 5 heavy release layers, 6 exhaust channels and 7 square glue blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a square ultra-thin exhaust adhesive tape comprises a light release layer 1, a smooth surface flat adhesive layer 2, a PET substrate 3, a square adhesive layer 4 and a heavy release layer 5 are sequentially arranged on the lower side of the light release layer 1, the light release layer 1 is a polyethylene terephthalate film, the surface of the polyethylene terephthalate film is coated with a silicone polymer, the light release layer 1 has a thickness of 25 μm, the smooth surface flat adhesive layer 2 has a thickness of 2-8 μm, preferably, the smooth surface flat adhesive layer 2 has a thickness of 3 μm, the PET substrate 3 is a polyethylene terephthalate film, the PET substrate 3 has a thickness of 1.5-5 μm, preferably, the PET substrate 3 has a thickness of 1.5 μm, the square adhesive layer 4 is formed by uniformly and densely distributing a plurality of square adhesive blocks 7 on the surface of the PET substrate 3, an exhaust channel 6 is formed between two adjacent square adhesive blocks 7, and the diagonal of the square adhesive blocks 7 is 1.5-2.5 mm, the exhaust channel 6 is 50-200 μm, the gluing thickness of the square adhesive layer 4 is 3-10 μm, the diagonal line of the square adhesive block 7 is preferably 1.5mm, the exhaust channel 6 is 80 μm, the gluing thickness of the square adhesive layer 4 is 4.5 μm, the heavy release layer 5 is a polyethylene terephthalate film, the surface of the polyethylene terephthalate film is coated with a silicone polymer, and the thickness of the heavy release layer 5 is 36 μm.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (4)

1. The utility model provides a square ultra-thin exhaust sticky tape, is including light from type layer (1), the downside of light from type layer (1) is equipped with plain noodles glue film (2), PET substrate (3), square glue film (4) and heavily from type layer (5) in proper order, its characterized in that, light from type layer (1) is the polyethylene terephthalate membrane, the coating of polyethylene terephthalate membrane surface has silicone polymer, the thickness of light from type layer (1) is 25 mu m, plain noodles glue film (2) thickness is 2 ~ 8 mu m, PET substrate (3) are the polyethylene terephthalate membrane, PET substrate (3) thickness is 1.5 ~ 5 mu m, square glue film (4) are that a plurality of square glue piece (7) are even and distribute on PET substrate (3) surface intensively, and are formed with exhaust passage (6) between two adjacent square glue pieces (7), the diagonal of square glue piece (7) is 1.5 ~ 2.5mm, exhaust passage (6) are 50 ~ 200 mu m, the rubberizing thickness of square glue film (4) is 3-10 mu m, heavily from type layer (5) for the polyethylene terephthalate membrane, the coating of polyethylene terephthalate membrane surface has silicone polymer, the thickness of heavily from type layer (5) is 36 mu m.

2. The square ultra-thin vent tape according to claim 1, wherein the smooth surface flat adhesive layer (2) has a thickness of 3 μm.

3. A square ultra thin venting tape according to claim 1, characterized in that the PET substrate (3) has a thickness of 1.5 μm.

4. Ultra-thin venting tape in square shape according to claim 1, characterized in that the diagonal of the square shaped glue block (7) is 1.5mm, the venting channel (6) is 80 μm, and the glue thickness of the square shaped glue layer (4) is 4.5 μm.

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