CN116902384A

CN116902384A - Protective layer structure

Info

Publication number: CN116902384A
Application number: CN202310944155.XA
Authority: CN
Inventors: 何荣; 贾军虎; 殷探
Original assignee: Jiebang Precision Technology Co ltd
Current assignee: Jiebang Precision Technology Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2023-10-20

Abstract

The invention discloses a protective layer structure, which relates to the technical field of die cutting and comprises a protective layer body, a reverse pasting layer and a product layer, wherein the reverse pasting layer is divided into a first reverse pasting layer and a second reverse pasting layer which are different in shape; the protective layer structure is also provided with a stripping starting position at the corner, a product layer close to the stripping starting position is used, a first anti-adhesive layer is used, a product layer far away from the stripping starting position is used, a second anti-adhesive layer is used, when the protective film is stripped just beginning, the stripping angle is smaller because of smaller available holding position, the stripping force required by stripping the protective film is larger and the stripping difficulty is caused, the anti-adhesive layer with a special shape is required to be added between the protective layer and the product layer, the stripping difficulty is reduced, the middle stage of the stripping process is reached, the stripping angle can be increased because the area and the operation space of the protective film which can be held are increased, the stripping force required by stripping the protective film is reduced, and the anti-adhesive layer with a conventional shape can be used, thereby reducing the manufacturing cost of the die.

Description

Protective layer structure

Technical Field

The invention relates to the technical field of die cutting, in particular to a protective layer structure.

Background

Many consumer electronic products have complicated components and complicated structures, and in the assembly process, the assembly process needs to use components to improve the assembly precision and efficiency of the products, for example, a certain die-cut product is covered with a peelable adhesive protection layer to protect the product before installation, but due to various factors generated in the production and transportation processes, the protection layer is difficult to peel off sometimes and even the product itself is damaged, so that a reverse adhesive layer needs to be additionally arranged between the product and the protection layer thereof, as shown in the disclosure patent CN109572085A, CN109572084 a;

in the above patent solutions, as the peeling angle of the protective film increases from the peeling start position to the peeling end position, the peeling force applied to the protective film is continuously changed (the peeling force is gradually reduced from large to small), and the use of a single counter-adhesive layer with a special shape results in the counter-adhesive layer with a special shape that is closer to the peeling end position acting the same as the counter-adhesive layer with a conventional shape, thereby causing waste.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a protective layer structure, which solves the problems of the background technology.

In order to achieve the above purpose, the invention is realized by the following technical scheme: a protective layer structure comprises a protective layer body, a reverse adhesive layer and a product layer, wherein,

the anti-sticking layer and the product layer are respectively provided with a plurality of anti-sticking layers, and the number of the anti-sticking layers and the number of the product layers are corresponding to each other;

one side of the protective layer body is provided with viscosity, and the protective layer body is adhered with the anti-sticking layer with the same side provided with viscosity through the viscosity;

part of the product layer is overlapped on the anti-sticking layer, part of the product layer is overlapped on the protective layer body, the part overlapped with the anti-sticking layer is not sticky, and the part overlapped with the protective layer body is sticky;

the anti-sticking layer is divided into a first anti-sticking layer and a second anti-sticking layer which are different in shape;

the protective layer structure is provided with a stripping starting position, a product layer close to the stripping starting position is a first anti-sticking layer, a product layer far away from the stripping starting position is a second anti-sticking layer.

Further, the area of the second anti-sticking layer, which is close to the stripping starting position, covers the product layer, and the area of the second anti-sticking layer accounts for 25% -40% of the surface area of the product layer.

Further, the width of the first anti-adhesion layer on the side close to the peeling starting position is larger than the width of the first anti-adhesion layer on the side far from the peeling starting position.

Further, the first anti-sticking layer covers the product layer at one side of the stripping starting position of the protective layer body, and covers more than one half of the circumference of the product layer.

Further, the first reverse adhesive layer has an extension beyond the interface with the product layer.

Furthermore, one surface of the product layer adhered by the protective layer body is sticky, and the anti-adhesion layer is in non-sticky surface contact with the product layer.

Furthermore, one surface of the product layer adhered by the protective layer body is not sticky, and the anti-adhesion layer is in sticky surface contact with the product layer.

Furthermore, the corners of the first reverse pasting layer and the second reverse pasting layer are respectively provided with a round angle, and the radius R of the round angle is more than or equal to 0.25mm.

Furthermore, one side of the middle part of the anti-sticking layer is also provided with an inclined structure, the peeling starting position of the connecting protective layer body and the central line of the product layer are made into a straight line a, then a vertical line b of a is made on the a, a is taken as a Y axis, b is taken as an X axis, the end points connecting the two adjacent sides of the inclined structure of the anti-sticking layer are made into a straight line c, the slope of c is set as k1, the slope of an extension line d of the inclined structure is set as k2, and k2 is more than or equal to 0 and less than or equal to k1.

The invention provides a protective layer structure. Compared with the prior art, the method has the following beneficial effects:

according to the protective layer structure, when the protective film is just peeled off, the position for holding is smaller, the general peeling angle is smaller, so that the peeling force required for peeling the protective film is larger, peeling is difficult, a reverse adhesive layer with a special shape is required to be added between the protective layer and a product layer, peeling difficulty is reduced, the peeling angle can be increased due to the fact that the area of the protective film for holding and the operation space are increased, the peeling force required for peeling the protective film is smaller, and a reverse adhesive layer with a conventional shape can be used, so that the manufacturing cost of a die is reduced.

Drawings

FIG. 1 is a schematic diagram of an exploded construction of the present invention;

FIG. 2 is a schematic diagram of a stacked structure of the present invention;

FIG. 3 is a top view of the present invention in a stacked state;

FIG. 4 is a schematic view showing the change of angle of the protective layer during peeling.

FIG. 5 is a schematic view of the auxiliary line corner peeling start position according to the present invention.

FIG. 6 is a schematic view of the auxiliary line side edge peeling start position in the present invention.

In the figure: 1. a protective layer body; 2. a reverse pasting layer; 21. a first reverse-sticking layer; 22. a second reverse pasting layer; 3. and (3) a product layer.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Examples

Referring to fig. 1, 2 and 3, the present invention provides a technical solution: the utility model provides a protective layer structure, including protective layer body 1, anti-layer 2, product layer 3, wherein, anti-layer 2 and product layer 3 all are provided with a plurality of, and the quantity corresponds, and the one side of protective layer body 1 has the viscidity, lets protective layer body 1 and the same one side have the sticky anti-layer 2 bonding together through this viscidity, and the partial coincide of product layer 3 is on anti-layer 2, and the partial coincide is on protective layer body 1, does not have the viscidity with the partial coincide of anti-layer 2, has the viscidity with the partial coincide of protective layer body 1.

In addition, in this embodiment, the area of the second anti-adhesive layer 22 on the product layer 3 on the side close to the peeling start position accounts for 25% -40% of the surface area of the product layer 3, the width of the first anti-adhesive layer 21 on the side close to the peeling start position is larger than the width of the first anti-adhesive layer 21 on the side far away from the peeling start position, the first anti-adhesive layer 21 covers the product layer 3 on the side of the peeling start position of the protective layer body 1, and covers more than one half of the circumference of the product layer 3, the first anti-adhesive layer 21 has an extension beyond the contact surface with the product layer 3, one surface of the product layer 3 covered by the protective layer body 1 has adhesiveness, the anti-adhesive layer 2 is in non-adhesive surface contact with the product layer 3, one surface of the product layer 3 covered by the protective layer body 1 has no adhesiveness, the anti-adhesive layer 2 is in adhesive surface contact with the product layer 3, the corners of the contours of the first anti-adhesive layer 21 and the second anti-adhesive layer 22 are rounded corners, and the radius R is more than 0.25mm.

Examples

To sum up, referring to fig. 4, it can be seen that α < β, and therefore the peel force of the right half of the schematic diagram is greater, it is also illustrated that: the magnitude of the peeling force of the protective layer is related to the peeling angle of the protective layer, when the protective film is just peeled off, the peeling force required for peeling the protective film is larger because the position for holding is smaller and the peeling angle is smaller generally, so that peeling is difficult, a reverse pasting layer (a first reverse pasting layer 21) with a special shape is required to be added between the protective layer and a product layer, peeling difficulty is reduced, and the peeling force required for peeling the protective film is reduced because the area of the protective film for holding and the operation space are increased, the peeling angle can be increased, and the reverse pasting layer (a second reverse pasting layer 22) with a conventional shape can be used, so that the manufacturing cost of a die is reduced.

Referring to fig. 5 and 6, one side of the middle part of the anti-sticking layer 2 is also provided with an inclined structure, a straight line a is formed between the peeling start position of the protective layer body 1 and the center line of the product layer 3, then a vertical line b is formed on the a, a is taken as a Y axis, b is taken as an X axis, an end point connected with two adjacent sides of the inclined structure of the anti-sticking layer 2 is taken as a straight line c, the slope of c is set as k1, the slope of an extension line d of the inclined structure is set as k2, and k2 is more than or equal to 0 and less than or equal to k1;

in addition, the counter patch layer 2 is divided into a first counter patch layer 21 and a second counter patch layer 22 with different shapes, a peeling start position is further provided at a corner, the product layer 3 close to the peeling start position is used as the first counter patch layer 21, the product layer 3 far away from the peeling start position is used as the second counter patch layer 22, it can be understood that when peeling is performed along the direction of the line a in fig. 5 and 6 from the start end of the line a, the shape of the nearby counter patch layer is the first counter patch layer 21 when peeling is just started, since the peeling angle is smaller (such as alpha in fig. 4) when peeling is just started, the peeling force required for peeling the protective film is larger, the peeling difficulty is caused, and therefore, the first counter patch layer 21 with a special shape needs to be distributed to reduce peeling difficulty, and similarly, when peeling is finished, the nearby counter patch layer shape is the second counter patch layer 22 is finished, the peeling angle becomes larger (such as beta in fig. 4), if the first counter patch layer 21 is redistributed, the first counter patch layer 21 is relatively high in cost, and the first counter patch layer 21 is not required to be manufactured, and the cost is reduced again, and the first counter patch layer 21 is not required to be normally used.

Claims

1. The protective layer structure is characterized by comprising a protective layer body (1), a reverse adhesion layer (2) and a product layer (3), wherein,

the anti-sticking layers (2) and the product layers (3) are respectively provided with a plurality of corresponding numbers;

one surface of the protective layer body (1) has adhesiveness, and the protective layer body (1) is adhered with the anti-sticking layer (2) with the same surface having adhesiveness through the adhesiveness;

part of the product layer (3) is overlapped on the anti-sticking layer (2), part of the product layer is overlapped on the protective layer body (1), the part overlapped with the anti-sticking layer (2) is not sticky, and the part overlapped with the protective layer body (1) is sticky;

the anti-sticking layer (2) is divided into a first anti-sticking layer (21) and a second anti-sticking layer (22) which are different in shape;

the protective layer structure is provided with a stripping starting position, a product layer (3) close to the stripping starting position is provided with a first anti-sticking layer (21), a product layer (3) far away from the stripping starting position is provided with a second anti-sticking layer (22).

2. A protective layer structure according to claim 1, characterized in that the second counter-adhesive layer (22) has an area covering the product layer (3) on the side close to the peeling start position, which area is 25-40% of the surface area of the product layer (3).

3. A protective layer structure according to claim 1, characterized in that the first counter-adhesive layer (21) has a greater width on the side closer to the peeling start position than on the side farther from the peeling start position.

4. A protective layer structure according to claim 1, characterized in that the first counter-adhesive layer (21) covers the product layer (3) on the side of the peeling start position of the protective layer body (1) and covers more than one half of the circumference of the product layer (3).

5. A protective layer structure according to claim 1, characterized in that the first counter-layer (21) has an extension beyond the contact surface with the product layer (3).

6. A protective layer structure according to claim 1, wherein one side of the product layer (3) to which the protective layer body (1) is attached has adhesion, and the anti-adhesion layer (2) is in non-adhesion surface contact with the product layer (3).

7. A protective layer structure according to claim 6, wherein the adhesive surface contact is formed between the anti-adhesion layer (2) and the product layer (3) when one surface of the product layer (3) to which the protective layer body (1) is adhered is not adhesive.

8. The protective layer structure according to claim 1, wherein corners of the profiles of the first and second anti-adhesion layers (21, 22) are rounded, and the radius R of the rounded corners is equal to or greater than 0.25mm.

9. The protective layer structure according to claim 1, wherein the middle part of the anti-sticking layer (2) is further provided with an inclined structure, a straight line a is formed by connecting the peeling starting position of the protective layer body (1) and the central line of the product layer (3), then a vertical line b is formed on the straight line a, a is taken as a Y axis, b is taken as an X axis, end points of adjacent two sides of the inclined structure of the anti-sticking layer (2) are connected to form a straight line c, the slope of c is set to be k1, the slope of an extension line d of the inclined structure is set to be k2, and k2 is not less than 0 and not more than k1.