Large-size three-dimensional protective film capable of avoiding poor adhesion

Abstract

The utility model relates to a large-size three-dimensional protective film capable of avoiding poor adhesion, which comprises an adhesive film and a release film which are mutually adhered on the whole surface, the adhesive film is of an integrated structure consisting of a large-surface area, two wide-edge areas and two long-edge areas, the two wide-edge areas are respectively connected with the opposite sides of the wide edges of the large-surface area, and the two long-edge areas are respectively connected with the release film. The middle portions of the two long-edge areas are connected to the opposite sides of the long edges of the large-face area respectively, gaps with the width gradually increased are formed between the two sides of each long-edge area and the large-face area, the release film is provided with a center stripping area corresponding to the large-face area, a wide-edge stripping area corresponding to the wide-edge area and a long-edge stripping area corresponding to the long-edge area, and all the areas of the release film are disconnected. The large-size three-dimensional protective film can prevent the adhesive film from being reversely adhered due to too large size, so that the adhering quality is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of adhesive film, especially to a large size three -dimensional protection film of avoiding bad pasting. BACKGROUND

[0002] When electronic products are shipped, the surface often needs to be pasted with a protective film to avoid leaving marks due to bumps during transportation. If the product size is large, the size of the protective film must also be large. For example, the back of a liquid crystal television, a liquid crystal display and other products requires a large protective film, and the protective film not only covers the back, but also extends to the side of the product.

[0003] Because the adhesive film of the protective film is a flexible structure, it is easy to bend and deform during pasting, but the glue on one side can cause reverse sticking. For large size protective films, it is more prone to bending, and once the adhesive film deforms, the glue at different parts is easy to stick together, at which point the film cannot be pasted.

[0004] Therefore, the structure of the protective film needs to be improved to solve the above problems. SUMMARY

[0005] The main purpose of the utility model is to provide a large size three -dimensional protection film of avoiding bad pasting, which can prevent the adhesive film from reverse sticking due to too large size and ensure the pasting quality.

[0006] The utility model discloses a kind of large size three -dimensional protection films of avoiding bad pasting, including whole face mutually pasting adhesive film and release film, the adhesive film is the one-piece structure of large face part, two wide edge parts and two long edge parts, two wide edge parts are connected to the wide edge opposite side of the large face part respectively, the middle part of two long edge parts is connected to the long edge opposite side of the large face part respectively, the long edge part has gradually increasing gap between two sides and the large face part, the release film has the center release area corresponding the large face part, the wide edge release area corresponding the wide edge part and the long edge release area corresponding the long edge part, each area of the release film is disconnected.

[0007] Specifically, the adhesive film and the corresponding position of the release film are provided with a plurality of avoidance holes.

[0008] Specifically, the large face part is pasted with a separation aid film on one side of the gap, and the separation aid film is located on the opposite surface of the adhesive film.

[0009] Further, the large face part and the wide edge zone are provided with a separation aid notch at the junction position close to the separation aid film.

[0010] The utility model technical scheme has the advantages of:

[0011] When using this large-size 3D protective film, first remove the release film from the center peel area. After the large part is attached to the back of the object, remove the wide and long peel areas separately to fold it over and attach it to the side of the object. The release film that is not removed during this process can increase the stiffness of the film edge and prevent the film from sticking back due to its large size, thus ensuring the quality of the adhesion. Attached Figure Description

[0012] Figure 1 This is a top view of the large-size three-dimensional protective film in the embodiment;

[0013] Figure 2 for Figure 1 A magnified view of a portion of position A in the middle;

[0014] Figure 3 for Figure 2 A cross-sectional view of BB in the image.

[0015] The numbers in the diagram represent:

[0016] 1- Adhesive film, 11- Alternating hole, 12- Gap, 13- Separation aid notch;

[0017] 2a - Central stripping zone, 2b - Wide-side stripping zone, 2c - Long-side stripping zone;

[0018] 3-Separation membrane. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to specific embodiments.

[0020] Example:

[0021] like Figure 1 As shown, this utility model provides a large-size three-dimensional protective film to avoid poor adhesion, comprising an adhesive film 1 and a release film that are fully bonded together. The adhesive film 1 is an integral structure consisting of a large surface area, two wide sides, and two long sides. The two wide sides are respectively connected to the opposite sides of the wide sides of the large surface area, and the middle parts of the two long sides are respectively connected to the opposite sides of the long sides of the large surface area. There are gaps 12 with gradually increasing width between the two sides of the long sides and the large surface area. The release film has a central peeling area 2a corresponding to the large surface area, a wide side peeling area 2b corresponding to the wide sides, and a long side peeling area 2c corresponding to the long sides. The areas of the release film are disconnected from each other.

[0022] The adhesive film 1 in the large-size 3D protective film 1 is used to adhere to the back and sides of the object to be covered, such as an LCD TV or LCD screen, which has a smooth, continuous back and narrow sides. The larger portion is adhered to the back of the object, while the wider and longer portions are folded over and adhered to the sides. The adhesive film 1 is a one-piece structure, but the release film is a separate structure. Therefore, during use, the release film can be peeled off section by section and applied to the surface of the object.

[0023] As shown in Figure 1 The corresponding positions of the adhesive film 1 and the release film are provided with a plurality of avoiding holes 11.

[0024] The positions of the avoiding holes 11 herein can be on the large surface part, on the wide edge part and the long edge part, or across the transition position between the large surface part and other parts. Because the surface of the adherend often has joints, buttons, decorative protrusions, which are generally not flush with other surfaces of the adherend, the adhesive film 1 needs to avoid these structures, so the avoiding holes 11 need to be provided.

[0025] As shown in Figures 1 to 3 The large surface part is provided with a separation assisting film 3 on one side of the gap 12, and the separation assisting film 3 is located on the opposite surface of the adhesive film 1.

[0026] In order to facilitate the separation of the release film and the adhesive film 1, pulling the separation assisting film 3 can provide a pulling force perpendicular to the adhesive surface, so that the edge of the large surface part can be quickly separated from the adhesive film 1.

[0027] As shown in Figure 2 The large surface part and the wide edge region are provided with a separation assisting notch 13 at the junction position close to the separation assisting film 3.

[0028] The separation assisting notch 13 is a weak position on the adhesive film 1 and the release film. While pulling the separation assisting film 3, the other hand of the person is pinching the wide edge peeling region 2b and the wide edge part. Because of the existence of the separation assisting notch 13, the large surface region and the center peeling region 2a can be separated from the side of the separation assisting notch 13, so that the release film of the center peeling region 2a can be torn off in whole.

[0029] The large size three-dimensional protective film is used to first tear off the release film of the center peeling region 2a, and then tear off the wide edge peeling region 2b and the long edge peeling region 2c to be folded to the side surface of the adherend after the large surface part is adhered to the back surface of the adherend. During this period, the release film that has not been torn off can improve the stiffness of the edge of the adhesive film 1, prevent the adhesive film 1 from being reversely adhered due to too large size, and ensure the adhesion quality.

[0030] The above only describes some embodiments of the present application. Those skilled in the art can make some modifications and improvements without departing from the inventive concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A large-sized three-dimensional protective film avoiding poor adhesion, characterized by: The adhesive film and the release film are mutually attached to each other, the adhesive film is an integral structure composed of a large surface part, two wide edge parts and two long edge parts, the two wide edge parts are connected to opposite sides of the wide edge of the large surface part respectively, the middle parts of the two long edge parts are connected to opposite sides of the long edge of the large surface part respectively, the gap between the two sides of the long edge part and the large surface part has gradually increasing width, the release film has a center peeling area corresponding to the large surface part, a wide edge peeling area corresponding to the wide edge part and a long edge peeling area corresponding to the long edge part, and the areas of the release film are disconnected.

2. The large size three-dimensional protection film to prevent poor adhesion according to claim 1, wherein: The adhesive film and the corresponding position of the release film are provided with a plurality of avoidance holes.

3. The large size three-dimensional protective film to prevent poor adhesion according to claim 1, wherein: The large surface part is attached to a separation aid film on one side of the gap, and the separation aid film is located on the opposite surface of the adhesive film.

4. The large size 3D protection film to prevent poor adhesion according to claim 3, wherein: The large surface part and the wide edge area are provided with a separation aid notch at the junction position close to the separation aid film.

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