CN213141913U

CN213141913U - PET protective film

Info

Publication number: CN213141913U
Application number: CN202021543306.9U
Authority: CN
Inventors: 余国良
Original assignee: Kairen Precision Materials Jiangsu Co ltd
Current assignee: Kairen Precision Materials Jiangsu Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-05-07
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses a PET protection film, including the protection film body, the protection film body includes protective layer, intermediate layer and adhesive linkage from top to bottom in proper order, interbedded side outwards extends along the horizontal direction and forms the identification block, the thickness of identification block is the same with interbedded thickness, the intermediate layer is provided with the fracture through-hole in the identification block position, the fracture through-hole distributes to the position that identification block and intermediate layer are connected along the length direction of identification block, the fracture through-hole is located the orthographic projection within range of protective layer. In the use, be provided with printing ink on the identification block or through laser marking or through interbedded colour representation spare part's technology code or material number, in the equipment process or before dispatching from the factory, can get rid of the identification block as required, exert oneself the identification block, because the existence of fracture through-hole, structural strength between identification block and the intermediate layer is lower, makes things convenient for tearing of identification block to leave.

Description

PET protective film

Technical Field

The utility model relates to a protection film field, in particular to PET protection film.

Background

The PET protective film is a protective film containing a PET material in its chemical composition, and is generally used in the field of surface protection of products, and a utility model patent publication No. CN205803382U discloses such a PET protective film.

In order to determine which stage in the process flow a part covered with a PET protective film is in, the PET protective film is generally required to be marked, the conventional marking method adopts an oil pen to paint on the protective film, and with the development of an industrial production line, the manual marking is large in labor waste and prone to generating errors, so that a PET protective film with an attachable mark is required.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a PET protection film has the structure of subsidiary sign, conveniently tears simultaneously and removes.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a PET protection film, includes the protection film body, the protection film body includes protective layer, intermediate layer and adhesive linkage from top to bottom in proper order, interbedded side outwards extends along the horizontal direction and forms the identification block, the thickness of identification block is the same with interbedded thickness, the intermediate layer is provided with the fracture through-hole in the identification block position, the fracture through-hole distributes to the position that identification block and intermediate layer are connected along the length direction of identification block, the fracture through-hole is located the orthographic projection within range of protective layer.

Preferably, the identification block is rectangular, and the long edge of the identification block is connected with the interlayer.

Through adopting above-mentioned technical scheme, area of contact is big, and structural strength is high.

Preferably, an ink layer is attached to the mark block.

Through adopting above-mentioned technical scheme, if do not adopt laser marking, can adopt printing ink sign to proxy, the printing ink layer plays the effect of sign, for example type into two-dimensional code record protection film and part state.

Preferably, the side surface of the identification block is provided with a circular arc angle.

Through adopting above-mentioned technical scheme, reduce the fish tail that the marking block caused.

Preferably, the fracture through-hole has a rectangular shape.

Through adopting above-mentioned technical scheme, it is more convenient to tear.

Preferably, the fracture through-hole includes a first extension portion, a horizontal extension portion and a second extension portion, the first extension portion extends inwards along the wide side of the interlayer, the second extension portion extends inwards along the wide side of the interlayer, and two ends of the horizontal extension portion in the length direction are respectively connected with the first extension portion and the second extension portion.

Through adopting above-mentioned technical scheme, make the fracture through-hole be located the below of protective layer, avoid the sign piece to tear and leave the incomplete limit after removing, influence the transportation and the quality of part.

Preferably, the fracture through-hole is arranged on the interlayer in a penetrating manner.

Through adopting above-mentioned technical scheme, make things convenient for tearing of identification block to remove.

Preferably, the thickness of the protective film body is 70 to 200 μm.

In conclusion, in the using process, the process code or the material number of the part is represented by the ink arranged on the identification block or by laser marking or by the color of the interlayer, the identification block can be removed as required in the assembling process or before leaving the factory, the force is applied to the identification block, and due to the existence of the fracture through hole, the structural strength between the identification block and the interlayer is low, so that the identification block can be conveniently torn off; meanwhile, the broken through holes are all located in the orthographic projection of the protective film, so that the waste edges after tearing are prevented from being exposed outside.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is a schematic diagram of the structure after the protective layer is removed according to the embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic cross-sectional view of an embodiment at the location of a broken via;

in the figure, 1, a protective layer; 2. an interlayer; 3. an adhesive layer; 4. an identification block; 5. breaking the through hole; 6. an ink layer; 7. a circular arc angle; 8. a first extension portion; 9. a horizontal extension; 10. a second extension portion.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Example (b):

as shown in fig. 1 and 2, a PET protective film comprises a protective film body, the protective film body sequentially comprises a protective layer 1, an interlayer 2 and an adhesive layer 3 from top to bottom, the protective layer 1 and the interlayer 2 are made of PET materials, the adhesive layer 3 has an adhesive effect, the thickness of the protective film body is 70-200 μm, the thickness proportion of the protective layer 1, the interlayer 2 and the adhesive layer 3 is determined according to parameters such as structural strength and light transmittance, meanwhile, the protective layer 1, the interlayer 2 and the adhesive layer 3 are connected through a silicon adhesive, meanwhile, the protective layer 1 can be made of a transparent material, and the interlayer 2 can be provided with different colors and used for protecting film pasting parts.

As shown in fig. 3 and 4, the side of intermediate layer 2 outwards extends along the horizontal direction and forms identification block 4, identification block 4 can beat the mark and carry out the sign, also can adhere to printing ink layer 6 and carry out the sign, printing ink layer 6 is brushed promptly and is had printing ink material number, identification block 4's thickness is the same with intermediate layer 2's thickness, identification block 4 is the rectangle, identification block 4's side is provided with arc angle 7, identification block 4's long limit is connected with intermediate layer 2, intermediate layer 2 is provided with fracture through-hole 5 in identification block 4 position, fracture through-hole 5 is the rectangle, but fracture through-hole 5 is interconnect in corner position.

As shown in fig. 4, the fracture through-hole 5 is disposed through the interlayer 2, the fracture through-hole 5 is located in the orthographic projection range of the protective layer 1, the fracture through-hole 5 is distributed to the position where the identification block 4 is connected with the interlayer 2 along the length direction of the identification block 4, that is, the fracture through-hole 5 includes a first extension portion 8, a horizontal extension portion 9 and a second extension portion 10, the first extension portion 8 extends into the interlayer 2 along the wide side of the interlayer 2, the second extension portion 10 extends into the interlayer 2 along the wide side of the interlayer 2, and two ends of the horizontal extension portion 9 in the length direction are respectively connected with the first extension portion 8 and the second extension portion 10.

The working principle is as follows:

in the production process, firstly, the interlayer 2 is punched to form a fracture through hole 5, then the interlayer 2 is covered with the film to form the protective layer 1, meanwhile, the bottom of the interlayer 2 is coated with the adhesive layer 3, and finally, the film body is cut and cut to form the film body and the identification block 4.

Claims

1. The utility model provides a PET protection film, includes the protection film body, its characterized in that: the protection film body includes protective layer (1), intermediate layer (2) and adhesive linkage (3) from top to bottom in proper order, the side of intermediate layer (2) outwards extends along the horizontal direction and forms identification block (4), the thickness of identification block (4) is the same with the thickness of intermediate layer (2), intermediate layer (2) are provided with fracture through-hole (5) in identification block (4) position, fracture through-hole (5) distribute to the position that identification block (4) are connected with intermediate layer (2) along the length direction of identification block (4), fracture through-hole (5) are located the orthographic projection within range of protective layer (1).

2. The PET protective film according to claim 1, characterized in that: the identification block (4) is rectangular, and the long edge of the identification block (4) is connected with the interlayer (2).

3. The PET protective film according to claim 2, characterized in that: an ink layer (6) is attached to the identification block (4).

4. The PET protective film according to claim 2, characterized in that: and an arc angle (7) is arranged on the side surface of the identification block (4).

5. The PET protective film according to claim 1, characterized in that: the fracture through hole (5) is rectangular.

6. The PET protective film according to claim 1 or 5, characterized in that: fracture through-hole (5) include first extension (8), horizontal extension (9) and second extension (10), first extension (8) extend to interior along the broadside of intermediate layer (2) in intermediate layer (2), second extension (10) extend to interior along the broadside of intermediate layer (2) in intermediate layer (2), horizontal extension (9) length direction's both ends are connected with first extension (8) and second extension (10) respectively.

7. The PET protective film according to claim 6, wherein: the fracture through hole (5) is arranged on the interlayer (2) in a penetrating mode.

8. The PET protective film according to claim 1, characterized in that: the thickness of the protective film body is 70-200 mu m.