TW201431698A - Protective film structure and method of application thereof - Google Patents

Abstract

A protective film structure comprises a transparent protective film, release film and adhesive layer. The adhesive layer is arranged on the lower surface of the protective film, and the release film is disposed on the other surface of the adhesive layer. The area of the release film is greater than that of the protective film, while the release film protrudes out of the protective film and adhesive layer, the release film consists of at least two regions divided by a partition line. In the usage, one region of the release film is first stripped off, and the edge in the other region is held to attach the exposed part to the surface of portable electronic device. Then, the release film in the other region is gradually stripped along the un-attached direction, and the other part is attached to the surface. At the same time, the surface of the protective layer is squeezed to push the bubbles out in order to ensure that the protective film is flat attached to the surface. Therefore, in the process of attaching the protective layer, fingers are prevented from touching the adhesive layer, leaving no fingerprints on the surface of the adhesive layer or the portable electronic device.

Description

Protective film structure and method of use thereof

The invention relates to a protective film structure and a using method thereof, in particular to a portable electronic product, which can prevent fingers from contacting the adhesive layer and leaving fingerprints on the surface of the adhesive layer or the portable electronic device.

Since portable electronic products, such as mobile phones, notebook computers, tablets, cameras, etc., have been widely used in life, these products usually have a liquid crystal screen, and the outer layer of the liquid crystal screen is usually glass, which is easy to be dusty in the air. , or the accidental impact or fall caused by scratches or cracks, so screen protectors, or protective sheets have been widely used in this market. A conventional screen protector or a protective sheet is usually attached to a protective film having a viscous adhesive layer, and when attached, the protective film is separated from the release sheet, and then the protective film is separated from the release sheet. The protective film adheres to the surface of the portable electronic product. However, when the protective film is separated from the release sheet, it is difficult for the finger to touch the adhesive layer, and it is easy to be in the adhesive layer or the portable electronic product. Fingerprints are left on the surface, which destroys the overall aesthetics.

The main object of the present invention is to provide a protective film structure, which is mainly used for flatly bonding a protective layer to a surface of a portable electronic device for protecting a surface appearance, a liquid crystal screen, and the like. The protective film structure comprises a protective film, a release film and a glue layer, the protective film, the release film and the adhesive layer are transparent materials, and the adhesive layer is disposed on a lower surface of the protective film, the release The film is disposed on the other surface of the adhesive layer, and the adhesive layer is adhered. The area of the release film is larger than the protective film and the adhesive layer, and protrudes from the protective film and The glue layer, the release film comprises at least two regions divided by a scribe line.

The release film is mainly used to attach the protective film to the portable electronic device, and the edge of the protective film can provide grip and convenient alignment, so as to prevent the finger from directly contacting the adhesive layer and leaving fingerprints, and the adhesive layer At least the silicone rubber, polyurethane (PU), by the composition of the rubber layer, can also tear up the re-sticking in the first misalignment without the phenomenon of residual glue.

Another object of the present invention is to provide a method of using a protective film structure, which first peels off a first release film to expose a portion of the adhesive layer, and then holds the second release film to align the portable electronic device. a surface, and attaching a portion of the exposed layer to the surface while squeezing on the protective film to push the bubble out so that a portion of the protective film is flat on the surface; and then, by the first release The film gradually peels off the second release film toward the second release film and attaches the other portion of the adhesive layer to the surface, and simultaneously presses on the surface of the protective layer to push out the bubble to make the protective film flat On the surface.

The invention is characterized in that the gripping film is provided by applying a large-sized release film, so that the protective film is attached to the surface of the portable electronic device screen, and the finger layer is prevented from contacting the adhesive layer in the adhesive layer or the portable layer. The surface of the electronic device has fingerprints remaining, and in the case of the first misalignment, the re-sticking can be torn off without the phenomenon of residual glue.

1‧‧‧Protective membrane structure

10‧‧‧Protective film

15‧‧‧ holes

20‧‧‧Dissecting film

21‧‧‧First release film

23‧‧‧Second release film

25‧‧‧ cutting road

30‧‧‧ glue layer

100‧‧‧Portable electronic devices

150‧‧‧ surface

The first A is a side view of the protective film structure of the present invention.

The first B is a top view of the structure of the protective film of the present invention.

The second A diagram and the second D diagram are step-by-step schematic diagrams of the method of using the protective film structure of the present invention.

The implementation of the present invention will be described in more detail below with reference to the drawings and component symbols, so that those skilled in the art can implement the present specification after studying the present specification.

Referring to the first A and the first B, respectively, a side attempt and a top view of the protective film structure of the present invention. As shown in the first A diagram and the first B diagram, the protection of the present invention The protective film structure 1 comprises a protective film 10, a release film 20 and a glue layer 30. The protective film 10, the release film 20 and the adhesive layer 30 are both transparent materials, and the adhesive layer 30 is disposed on the protective film. The lower surface of the film 10 is disposed on the other surface of the adhesive layer 30. The adhesive layer 30 is adhered. The area of the release film 20 is larger than the protective film 10 and the adhesive layer 30. The protective film 10 and the adhesive layer 30 are surrounded by a first release film 21 and a second release film 23, which are separated from each other by a cutting path 25. Here, the split film 20 is divided into two parts only as an example, and is not limited thereto, and may actually be divided into more areas according to practical applications.

The protective film structure 10 is mainly used for attaching to the surface of a portable electronic device to protect the surface appearance, the surface of the screen and the like from scratching. The thickness of the protective film 10 ranges from 80 to 120 μm, and the composition thereof includes at least a polyethylene pair. Polyethylene terephthalate (PET). The release film 20 mainly provides a grip and facilitates alignment by the edge protruding from the protective film when the protective film 20 is attached to the portable electronic device, so as to prevent the finger from directly contacting the adhesive layer 30 in the adhesive layer 30. Or the residual fingerprint on the surface of the portable electronic device, the thickness of which is 50-80 μm, the composition of which comprises at least polyethylene terephthalate (PET), and the thickness of the adhesive layer 30 is 20~ 50μm, at least composed of silicone rubber, polyurethane (PU), the composition of the rubber layer 30, so that in the first misaligned condition, it can also tear up the re-sticking without the phenomenon of residual glue .

The protective film structure 1 of the present invention further includes at least one hole 15 extending through the protective film 10, the release film 20 and the adhesive layer 30 for corresponding to the portable electronic device to be protected. Specific location, for example, the Home button of the Apple iPad.

Referring to Figures 2A through 2D, a step-by-step schematic diagram of the method of using the protective film structure of the present invention. As shown in FIG. 2A, first, the first release film 21 is peeled off to expose a portion of the glue layer 30, and then, as shown in FIG. 2B, the edge of the second release film 23 is aligned. Surface of the portable electronic device 100 150, and a portion of the exposed adhesive layer 30 is attached to the surface 150, and is pressed on the protective film 10 to push out the air bubbles so that a part of the protective film 10 is flat on the surface; As shown in FIG. 2C, the second release film 23 is gradually stripped along the direction of the first release film 21 toward the second release film 23, and the other portion of the adhesive layer 30 is attached to the surface 150 while The surface of the protective layer is pressed, the bubble is pushed out, and finally, as shown in the second D diagram, the protective film 10 is flatly attached to the surface 150.

The invention is characterized in that the gripping film is provided by applying a large-sized release film, so that the protective film is attached to the surface of the portable electronic device screen, and the finger layer is prevented from contacting the adhesive layer in the adhesive layer or the portable layer. The surface of the electronic device has fingerprints remaining, and in the case of the first misalignment, the re-sticking can be torn off without the phenomenon of residual glue.

The above is only a preferred embodiment for explaining the present invention, and is not intended to limit the present invention in any way, and any modifications or alterations to the present invention made in the spirit of the same invention. All should still be included in the scope of the intention of the present invention.

1‧‧‧Protective membrane structure

10‧‧‧Protective film

15‧‧‧ holes

21‧‧‧First release film

23‧‧‧Second release film

25‧‧‧ cutting road

Claims (7)

A protective film structure comprising: a protective film; a glue layer disposed on a lower surface of the protective film; and a release film disposed on the other surface of the adhesive layer, adhered by the adhesive layer, the release type The area of the film is larger than the protective film and the adhesive layer, and protrudes from the protective film and the adhesive layer; and wherein the protective film, the release film and the adhesive layer are transparent materials, and the release film comprises a first release film and a second release film, the first release film and the first release film being separated from each other by a scribe line. The protective film structure according to claim 1, wherein the protective film has a thickness ranging from 80 to 120 μm, and the component of the protective film comprises at least polyethylene terephthalate (PET). . The protective film structure according to claim 1, wherein the release film has a thickness ranging from 50 to 80 μm, and the component of the release film comprises at least polyethylene terephthalate (PET). The protective film structure according to claim 1, wherein the adhesive layer has a thickness ranging from 20 to 50 μm, and the composition of the adhesive layer comprises at least silicone and polyurethane (PU). The protective film structure of claim 1, further comprising at least one hole penetrating the protective film, the release film and the adhesive layer. A method for using a protective film structure, the protective film structure having a protective film, a glue layer disposed on the lower surface of the protective film, and a release film disposed on the other surface of the adhesive layer, the area of the release film Greater than the protective film and the adhesive layer, and around Protruding the protective film and the adhesive layer, and comprising a first release film and a second release film, the first release film and the first release film are separated from each other by a cutting pass, and the use The method comprises: stripping the first release film to expose a portion of the adhesive layer; holding an edge of the second release film, aligning the protective film structure with a surface of a portable electronic device, and a portion of the exposed adhesive layer is attached to the surface while being pressed against the surface of the protective film, the air bubbles have been pushed out so that a portion of the protective film is flattened on the surface; and the first release film is Grasping the second release film toward the second release film, and attaching the other portion of the adhesive layer to the surface while pressing on the surface of the protective film to push the bubbles out so that The protective film is flat on the surface. The method of using the method of claim 6, wherein the protective film structure further comprises at least one hole penetrating the protective film, the release film and the adhesive layer, and aligning the portable electronic device The specific location of the product.