CN210085352U - Back lid rupture membrane - Google Patents

Abstract

The utility model relates to a technical field is made to the protection film, and more specifically says, it relates to a back lid rupture membrane, including toughened glass, toughened glass's one side is range upon range of the laminating in proper order and is had first high viscose layer, first film and pressure sensitive adhesive layer, and the laminating is stacked upon range of in proper order to the another side has second high viscose layer and second film. The utility model discloses when using, cover the pressure sensitive adhesive layer of this back lid rupture membrane in lid behind the cell-phone or other product surfaces that need protect, have explosion-proof effects, the laminating is effectual, and intensity is high, prevents scraping the effect excellence to the user is when using, feels light more comfortable, when the cell-phone falls to the ground, can prevent effectively that the back lid from breaking.

Description

Back lid rupture membrane

Technical Field

The utility model relates to a protection film makes technical field, especially relates to a back lid rupture membrane.

Background

The mobile phone film is also called as mobile phone beauty film or mobile phone protective film, which is a cold mounting film used for mounting the outer surface of the body of the mobile phone, the outer surface of the screen and other positions, the mobile phone film has various types, and can be divided into the following parts according to the purposes: a mobile phone screen protective film or a mobile phone body protective film and the like.

At present, with the rise of wireless charging technology, a large number of novel mobile phones begin to be developed into glass rear covers from metal rear covers. However, the glass rear cover is more likely to be scratched and broken than the metal rear cover and the plastic rear cover. Therefore, after a user purchases the mobile phone, the user can install the mobile phone shell to protect the mobile phone, however, after the mobile phone shell is installed on the mobile phone, the weight of the mobile phone is increased, and the hand feeling of the user when the user uses the mobile phone is influenced.

Disclosure of Invention

Not enough to above-mentioned prior art, the utility model aims at providing a back lid rupture membrane to replace cell-phone shell to prevent that the lid from damaging behind the cell-phone, and have explosion-proof effect, hand when promoting the consumer and using the cell-phone.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a back lid rupture membrane, includes toughened glass, toughened glass's one side is range upon range of the laminating in proper order and is had first high viscose layer, first film and pressure sensitive adhesive layer, and the laminating in proper order of another side has second high viscose layer and second film.

Further, the second film is a printable film.

Further, the printable film is a printable PET film.

Further, the first high-viscosity glue layer is an acrylic glue layer.

Further, the second high viscose layer is an acrylic glue layer or an OCA type acrylic resin layer.

Further, the pressure-sensitive adhesive layer is an organic silicon pressure-sensitive adhesive layer or a polyurethane pressure-sensitive adhesive layer.

Furthermore, a protective film is attached to one surface, far away from the toughened glass, of the pressure-sensitive adhesive layer.

Further, the protective film is a PET film.

Further, the first film is a PET film.

Further, the thickness range of the toughened glass is 200-500 μm.

The utility model has the advantages that: when in use, the pressure-sensitive adhesive layer of the back cover explosion-proof membrane is covered on the surface of a mobile phone back cover or other products needing protection; this back lid rupture membrane has explosion-proof effect, and the laminating is effectual, and intensity is high, prevents scraping the effect excellence to the user is when using, feels light comfortable more, when the cell-phone falls to the ground, can prevent effectively that the back lid from breaking.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic sectional structure diagram of an embodiment of the present invention.

Reference numerals: 1. tempering the glass; 2. a first high-viscosity glue layer; 3. a second high-viscosity glue layer; 4. a first film; 5. a second film; 6. a pressure sensitive adhesive layer; 7. and (4) a protective film.

Detailed Description

A back cover explosion-proof membrane, see figure 1, includes toughened glass 1, the one side of toughened glass 1 is range upon range of laminating in proper order and is laminated first high viscose layer 2, first film 4 and pressure sensitive adhesive layer 6, and the another side is range upon range of laminating in proper order and is laminated second high viscose layer 3 and second film 5.

When in use, the pressure-sensitive adhesive layer 6 of the back cover explosion-proof membrane is covered on the surface of a mobile phone back cover or other products needing protection; this back lid rupture membrane has explosion-proof effect, and the laminating is effectual, and intensity is high, prevents scraping the effect excellence to the user is when using, feels light comfortable more, when the cell-phone falls to the ground, can prevent effectively that the back lid from breaking.

Specifically, the second film 5 is a printable film, which is convenient for printing and processing various patterns and improves the aesthetic property, and the printable film includes a printable PET film, a PEN film, a PC film, a PP film and a PVC film.

In this embodiment, the printable film is a printable PET film having a thickness of 75 μm and a dyne size of 40dyn/cm or more, and in this embodiment, the dyne size of the PET film is 50 dyn/cm.

Specifically, the first high-viscosity adhesive layer 2 is an acrylic adhesive layer, the thickness range of the first high-viscosity adhesive layer 2 is 30-50 μm, and the magnitude range of the peeling force is 500-2000gf, in this embodiment, the thickness of the first high-viscosity adhesive layer 2 is 35 μm, and the magnitude of the peeling force is 2000 gf.

Specifically, the second high-viscosity adhesive layer 3 is an acrylic adhesive layer or an OCA type acrylic resin layer, in this embodiment, the first high-viscosity adhesive layer 2 is an OCA type acrylic resin layer, the thickness range of the second high-viscosity adhesive layer 3 is 20-50um, the peeling force is greater than 1500gf, in this embodiment, the thickness of the second high-viscosity adhesive layer 3 is 30 μm, and the peeling force is 2000 gf.

Specifically, the pressure-sensitive adhesive layer 6 is a silicone pressure-sensitive adhesive layer or a polyurethane pressure-sensitive adhesive layer, in this embodiment, a silicone pressure-sensitive adhesive layer is used as the pressure-sensitive adhesive layer 6, and in addition, the thickness of the pressure-sensitive adhesive layer 6 is in a range of 15 to 50 μm, and the peeling force is in a range of 1 to 5gf, in this embodiment, the thickness of the pressure-sensitive adhesive layer 6 is 25 μm, and the peeling force is 3 gf.

Specifically, a protective film 7 is attached to one surface, far away from the toughened glass 1, of the pressure-sensitive adhesive layer 6, and the protective film 7 is used for protecting the pressure-sensitive adhesive layer 6 from being polluted by impurities before use. The protective film 7 is a PET film, and the thickness of the protective film 7 is in the range of 50 to 75 μm, and in the present embodiment, the thickness of the protective film 7 is 50 μm.

Specifically, the first film 4 is a PET film, the thickness of the first film 4 ranges from 50 μm to 75 μm, and in this embodiment, the thickness of the first film 4 is 50 μm.

Specifically, the thickness of the tempered glass 1 is 200-500 μm, and in this embodiment, the thickness of the tempered glass 1 is 340 μm.

The above embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the present invention.

Claims (10)

1. A back cover rupture membrane is characterized in that: the toughened glass film comprises toughened glass (1), wherein a first high-viscosity adhesive layer (2), a first film (4) and a pressure-sensitive adhesive layer (6) are sequentially laminated and attached to one side of the toughened glass (1), and a second high-viscosity adhesive layer (3) and a second film (5) are sequentially laminated and attached to the other side of the toughened glass.

2. A rupture disk of a rear cover as set forth in claim 1, wherein: the second film (5) is a printable film.

3. A rupture disk of a rear cover as set forth in claim 2, wherein: the printable film is a printable PET film.

4. A rupture disk of a rear cover as set forth in any one of claims 1 to 3, wherein: the first high-viscosity glue layer (2) is an acrylic glue layer.

5. A rupture disk of a rear cover as set forth in any one of claims 1 to 3, wherein: the second high-viscosity glue layer (3) is an acrylic glue layer or an OCA type acrylic resin layer.

6. A rupture disk of a rear cover as set forth in any one of claims 1 to 3, wherein: the pressure-sensitive adhesive layer (6) is an organic silicon pressure-sensitive adhesive layer or a polyurethane pressure-sensitive adhesive layer.

7. A rupture disk of a rear cover as set forth in any one of claims 1 to 3, wherein: and a protective film (7) is attached to one surface, far away from the toughened glass (1), of the pressure-sensitive adhesive layer (6).

8. A rupture disk of a rear cover as set forth in claim 7, wherein: the protective film (7) is a PET film.

9. A rupture disk of a rear cover as set forth in any one of claims 1 to 3, wherein: the first film (4) is a PET film.

10. A rupture disk of a rear cover as set forth in any one of claims 1 to 3, wherein: the thickness range of the toughened glass (1) is 200-500 mu m.

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