PC double faced adhesive tape product
By using lightweight silicone protective film and dummy knife wire design in PC double-sided adhesive products, the problem of automatic waste discharge of light-shading tape is solved, achieving efficient production and cost reduction.
Patent Information
- Application Number
- CN202421961638.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-14
AI Technical Summary
Existing PC double-sided adhesive products are difficult to achieve automatic waste discharge during die cutting, resulting in low efficiency and high labor costs. It is mainly due to the difficulty of fixing the light-shading tape and traditional release film, which is prone to deviation.
A lightweight silicone protective film is used to replace the heavy first release film, and a dummy knife line is designed on the silicone protective film. The dummy knife line includes a connection part and a break, which is used to fix the light-shading tape, and is used to die-cut with flat knife equipment to achieve automatic waste discharge.
Automatic fixation of light-shielding tape and lightweight silicone protective film is achieved, avoiding deviation, improving production efficiency and reducing labor costs.
Smart Images
Figure CN223134388U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PC double-sided adhesive product preparation, and particularly to a PC double-sided adhesive product. Background Art
[0002] This PC double-sided adhesive product is mainly used for the annular double-sided adhesive at the position of the mobile phone camera. The PC double-sided adhesive product includes a first release film, a light-shielding tape, and a second release film. The die-cut product area of this PC double-sided adhesive product is very small, and it is difficult to use a traditional release film as a carrier to fix the light-shielding tape. As a result, the product often shifts and requires manual waste discharging, and automatic waste discharging cannot be achieved, leading to low efficiency and high labor costs. Summary of the Utility Model
[0003] Therefore, the technical problem to be solved by the utility model is to overcome the above problems existing in the prior art.
[0004] To solve the above technical problem, the utility model provides a PC double-sided adhesive product, including: a silica gel protective film, a light-shielding tape, and a second release film; the light-shielding tape is attached to the silica gel protective film, and the second release film is attached to the light-shielding tape; a virtual cutting line is provided on the silica gel protective film, and the virtual cutting line extends along the width direction of the silica gel protective film; the virtual cutting line includes a plurality of connecting parts and a plurality of breaks, and adjacent two connecting parts are disconnected by the breaks.
[0005] In an embodiment of the utility model, the virtual cutting line is located at the central axis position of the silica gel protective film.
[0006] In an embodiment of the utility model, the length L1 of the break of the virtual cutting line is 0.15 - 0.25 mm.
[0007] In an embodiment of the utility model, the length L2 of the connecting part of the virtual cutting line is 14.5 - 15 mm.
[0008] In an embodiment of the utility model, the weight of the silica gel protective film is less than 2 g.
[0009] In an embodiment of the utility model, the application further includes Lange, and Lange is attached to the second release film.
[0010] In an embodiment of the utility model, the light-shielding tape is black.
[0011] In an embodiment of the utility model, the thickness of the light-shielding tape is 0.05 mm.
[0012] In an embodiment of the utility model, the second release film adopts a double-resistant second release film, and the thickness of the second release film is 0.05 mm.
[0013] In an embodiment of the present utility model, the thickness of the silica gel protective film is 0.075 mm.
[0014] In an embodiment of the present utility model, it is prepared by die-cutting with a flat knife device.
[0015] The above technical solution of the present utility model has the following advantages compared with the prior art:
[0016] For the PC double-sided adhesive product described in the present utility model, the first release film with a large weight is changed to a silica gel protective film with a weak adhesion and a lighter weight, so that the silica gel protective film can be used to fix the light-shielding tape, thereby avoiding the deviation of the second release film and the light-shielding tape when removing the waste of the outer frame of the second release film; thus, automatic waste removal can be realized. In addition, a breaking knife line is made on the silica gel protective film in this embodiment, which is convenient for peeling the silica gel protective film after the product is produced and does not affect the second release film and the light-shielding tape. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model in combination with the attached drawings, wherein:
[0018] Figure 1 is a schematic structural diagram of a PC double-sided adhesive product in a preferred embodiment of the present utility model;
[0019] Figure 2 is Figure 1 the layout schematic diagram of the PC double-sided adhesive product;
[0020] Figure 3 is Figure 1 the first die-cutting knife back diagram of the PC double-sided adhesive product;
[0021] Figure 4 is Figure 1 the first die-cutting schematic diagram of the PC double-sided adhesive product;
[0022] Figure 5 is Figure 1 the second die-cutting knife back diagram of the PC double-sided adhesive product;
[0023] Figure 6 is Figure 1 the second die-cutting schematic diagram of the PC double-sided adhesive product;
[0024] Figure 7 is Figure 1 the third die-cutting knife back diagram of the PC double-sided adhesive product;
[0025] Figure 8 is Figure 1 the third die-cutting schematic diagram of the PC double-sided adhesive product;
[0026] Figure 9 It is a flow chart for flat die cutting of PC double-sided adhesive products using a laminating machine and a registration machine;
[0027] Explanation of the reference numerals in the drawings of the specification: 100, silicone protective film; 110, virtual cutting line; 111, break; 112, connecting part; 200, light-shielding tape; 300, second release film; 400, Lange; 500, process protective film; 600, process matte film; 700, sealing tape. Specific embodiments
[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and be able to implement it, but the specific embodiments cited are not intended to limit the present invention.
[0029] The customer requires automatic typesetting. 10 PC double-sided adhesive products can be set on one plate (that is, a plurality of double-sided adhesive components are arranged at intervals on a large first release film, and each double-sided adhesive component includes a light-shielding tape attached to the first release film and a second release film attached to the light-shielding tape). In order to improve efficiency and the stability of preparation, automatic waste discharge needs to be realized. The effective area size of the light-shielding tape is very small and it is difficult to fix it with two release films (that is, the first release film and the second release film). In this way, when discharging the waste of the release film, it is easy to have the problem that the release film with a small area is offset from the light-shielding tape, and automatic waste discharge cannot be realized.
[0030] See Figures 1 to 9 As shown, to solve the above problems, an embodiment of the present invention provides a PC double-sided adhesive product, including:
[0031] A silicone protective film 100, a light-shielding tape 200, and a second release film 300; the light-shielding tape 200 is attached to the silicone protective film 100, and the second release film 300 is attached to the light-shielding tape 200; a virtual cutting line 110 is provided on the silicone protective film 100, and the virtual cutting line 110 extends along the width direction of the silicone protective film 100; the virtual cutting line 110 includes a plurality of connecting parts 112 and a plurality of breaks 111, and adjacent two connecting parts 112 are disconnected by the breaks 111. The silicone protective film 100 has weak adhesiveness.
[0032] Specifically, in this embodiment, the first release film with a large weight is changed to a relatively light silicone protective film 100 with weak adhesiveness, so that the silicone protective film 100 can be fixed to the light-shielding tape 200, thereby avoiding the deviation between the second release film 300 and the light-shielding tape 200 when removing the waste of the outer frame of the second release film 300; thus, automatic waste removal can be achieved; the efficiency is improved and the cost is reduced. In addition, in this embodiment, a virtual cutting line is made on the silicone protective film 100, which facilitates the peeling of the silicone protective film 100 after the product is produced and does not affect the second release film 300 and the light-shielding tape 200.
[0033] Secondly, due to the design of the silicone protective film 100, it is also convenient for automatic typesetting. For example, 10 second release films 300 and light-shielding tapes 200 can be typeset on each silicone protective film 100.
[0034] Further, the virtual cutting line 110 is located at the central axis position of the silicone protective film 100.
[0035] Further, the length L1 of the break 111 of the virtual cutting line 110 is 0.15 - 0.25 mm.
[0036] Further, the length L2 of the connecting part 112 of the virtual cutting line 110 is 14.5 - 15 mm.
[0037] Further, the weight of the silicone protective film 100 is less than 2 g.
[0038] Further, this application also includes Lange 400, and Lange 400 is attached to the second release film 300.
[0039] Further, the light-shielding tape 200 is black. The light-shielding tape 200 is YS05B.
[0040] Further, the thickness of the light-shielding tape 200 is 0.05 mm.
[0041] Further, the second release film 300 adopts a double-resistant second release film 300, and the thickness of the second release film 300 is 0.05 mm.
[0042] Further, the thickness of the silicone protective film 100 is 0.075 mm.
[0043] Further, as shown in Figures 3 to 9 It is prepared by die-cutting with a flat knife device. The specific preparation process is as follows:
[0044] Step S1: Provide a process protective film 500, a second release film 300, a light-shielding tape 200, and a process matte film 600. It is carried out on the first laminating machine, and the process protective film 500, the second release film 300, the light-shielding tape 200, and the process matte film 600 are laminated in sequence from bottom to top.
[0045] Step S2: Perform the first die-cutting on the first positioning machine. Use die A to cut the shape of the annular light-shielding tape 200. During the die-cutting process, first cut the inner hole of the annular shape, and then cut the outer hole. The diameter of the inner hole is φ6.28 mm, and the diameter of the outer hole is φ8.28 mm.
[0046] Step S3: Perform on the second laminating machine. The die-cut light-shielding tape 200 is laminated with the sealing tape 700, and the waste materials from step S2 are removed.
[0047] Step S4: Perform the second die-cutting on the second positioning machine. Use die B to cut the outer frame shape of the second release film 300.
[0048] Step S5: Perform on the third laminating machine. Apply the single-sided tape to remove the outer frame waste materials of the second release film 300 and the process matte film 600 in step S4. And laminate the silicone protective film 100 on the light-shielding tape 200.
[0049] Step S6: Perform the third die-cutting on the third positioning machine. Use die C to cut the outer frame shape of the silicone protective film 100. And cut the virtual cutting lines 110 on the silicone protective film 100.
[0050] Step S7: Perform on the fourth laminating machine. Remove the outer frame waste materials of the silicone protective film 100 generated in step S6 and the process protective film 500.
[0051] Obviously, the above embodiments are only examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present utility model.
Claims
1. A PC double-sided adhesive product, characterized in that: Including: A silica gel protective film, a light-shielding tape, and a second release film; the light-shielding tape is adhered to the silica gel protective film, and the second release film is adhered to the light-shielding tape; A virtual cutting line is provided on the silica gel protective film, and the virtual cutting line extends along the width direction of the silica gel protective film; the virtual cutting line includes a plurality of connecting parts and a plurality of breaks, and adjacent two connecting parts are disconnected by the breaks.
2. The PC double-sided adhesive product according to claim 1, wherein: The virtual cutting line is located at the central axis position of the silica gel protective film.
3. The PC double-sided adhesive product according to claim 1, wherein: The length L1 of the break of the virtual cutting line is 0.15 - 0.25 mm.
4. The PC double-sided adhesive product according to claim 3, characterized in that: The length of the connecting part of the virtual cutting line is 14.5 - 15 mm.
5. The PC double-sided adhesive product according to claim 1, wherein: The weight of the silica gel protective film is less than 2 g.
6. The PC double-sided adhesive product according to claim 1, wherein: It further includes Lange, and Lange is adhered to the second release film.
7. The PC double-sided adhesive product according to claim 1, wherein: The light-shielding tape is black; the thickness of the light-shielding tape is 0.05 mm.
8. The PC double-sided adhesive product according to claim 1, characterized in that: The second release film uses a double-resistant second release film, and the thickness of the second release film is 0.05 mm.
9. The PC double-sided adhesive product according to claim 1, wherein: The thickness of the silica gel protective film is 0.075 mm.
10. The PC double-sided adhesive product according to claim 1, wherein: It is prepared by die-cutting with a flat knife device.