A composite double-sided adhesive foam processing technology and its installation process on a touch screen

Abstract

This invention discloses a composite double-sided adhesive foam processing technology and its installation process on a touch screen, including: S1, a punching process for the large board raw material; S2, a process for attaching and opening holes for the double-sided adhesive foam and the colored release film of the large board; S3, a process for attaching and punching the double-sided adhesive foam, the colored release film, and a single protective film; and S4, a rolling process for the composite double-sided adhesive foam. In this application, by hollowing out the double-sided adhesive foam and its colored release film at the IR hole of the touch screen cover, and then covering it with a transparent protective film with weak adhesion, the colored release film can provide long-lasting protection for the double-sided adhesive foam, and after tearing off the transparent protective film, the holes opened on the double-sided adhesive foam and the colored release film can be exposed, thereby facilitating the correspondence and testing between the holes opened on the double-sided adhesive foam and the colored release film and the IR holes of the touch screen cover, thereby reducing touch screen wear.

Description

Technical Field

[0001] This invention relates to the field of composite double-sided adhesive foam processing technology, specifically a composite double-sided adhesive foam processing technology and its installation process on a touch screen. Background Technology

[0002] In existing technology, during the installation of a touch screen, the release film on the foam needs to be removed first. If the release film is colorless and transparent, it is difficult for workers or machines to identify the position of the release film tear handle, which can easily lead to missed tearing. Therefore, the foam release film needs to be replaced with a colored film (such as blue). However, the colored release film will affect the test results when testing the IR hole of the cover plate. In this case, the colored release film needs to be removed before the test can be carried out normally, which will also cause waste of the touch screen. The more tests are conducted, the more waste will be caused. Summary of the Invention

[0003] To overcome the shortcomings mentioned above, the present invention aims to provide a technical solution that can solve the above problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a composite double-sided adhesive foam processing technology, including S1 a punching process for large board raw materials, S2 a process for attaching and opening holes for double-sided adhesive foam and colored heavy release film of large board, S3 a process for attaching and punching the combination of double-sided adhesive foam, colored heavy release film and single protective film, and S4 a rolling process for composite double-sided adhesive foam.

[0005] In step S1, the specific process includes the following steps:

[0006] S11, Preparatory large-format colorless transparent protective film raw materials and large-format foam double-sided adhesive raw materials.

[0007] Large-format colorless transparent protective film raw materials are laid out and cut according to the width of the protective film to obtain individual transparent protective films;

[0008] After the large-format foam double-sided adhesive raw materials are laid out according to the outer contour of the foam, they are punched and waste removed to obtain multiple sheets of foam double-sided adhesive.

[0009] The size of a single sheet of double-sided foam adhesive obtained after die-cutting a large sheet of double-sided foam adhesive is the same as the size of the touch screen cover.

[0010] In step S2, the specific process includes the following steps:

[0011] S21. Prepare a large-format colored heavy release film. After step S1, cut and remove waste, cover the large-format colored heavy release film with multiple sheets of foam double-sided adhesive.

[0012] S22. Arrange the IR holes on the foam double-sided adhesive and colored heavy release film composite. When arranging, the hole positions of the IR holes correspond to the IR hole positions of the touch screen cover.

[0013] S23. The composite material arranged through IR holes in step S22 is punched and waste is removed to obtain a composite material with perforated foam double-sided adhesive and colored heavy release film.

[0014] In step S3, the foam double-sided adhesive and colored heavy release film composite is attached in step S2.

[0015] As a further aspect of the present invention: In step S3, the specific process includes the following steps:

[0016] S31. Cover the combination of double-sided foam adhesive and colored heavy release film onto the single protective film obtained in step S1, and make the single protective film cover the opening position.

[0017] S32. Arrange the colored heavy release film according to its outer contour and viewing area contour, and after punching and waste removal, obtain a combination of foam double-sided adhesive, colored heavy release film and single protective film.

[0018] S33. The composite obtained after step S32 is flipped over as a whole.

[0019] As a further aspect of the present invention: In step S4, the specific process includes the following steps:

[0020] S41. Prepare a large-format light release film. Cover the large-format light release film with the combination of foam double-sided adhesive, colored heavy release film and single protective film obtained in step S33.

[0021] S42. The large-format light release film composite obtained in step S41 is rolled up to form a roll of composite double-sided adhesive foam for shipment.

[0022] As a further aspect of the present invention, step S11 specifically includes: reserving sufficient tear handle size during typesetting.

[0023] To achieve the above objectives, a process for installing composite double-sided adhesive foam on a touchscreen is provided, comprising the following steps:

[0024] This includes step S5, installing roll-type composite double-sided adhesive foam onto the touch screen semi-finished product.

[0025] As a further aspect of the present invention: In step S5, the specific process includes the following steps:

[0026] S51. Perform pre-production installation and debugging on roll-type composite double-sided adhesive foam.

[0027] S52. Prepare a semi-finished touch screen product, and bend the FPC on the semi-finished touch screen product before putting it into the production line.

[0028] S53. The semi-finished touch screen and the roll-type composite double-sided adhesive foam are combined on the production line and the automated bonding operation is completed in the touch screen assembly department.

[0029] S54. Manually attach green or yellow flag tear handles to individual protective films.

[0030] As a further aspect of the present invention: In step S53, the front side of the double-sided adhesive foam is attached to the back side of the touch screen cover, and the IR holes on the double-sided adhesive foam correspond to the IR holes on the touch screen cover, thus completing the attachment and installation of the touch screen cover and the composite double-sided adhesive foam.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0032] In this application, by hollowing out the double-sided adhesive foam and its colored release film at the IR hole of the touch screen cover, and then covering it with a transparent protective film with weak adhesion, the colored release film can provide long-lasting protection for the double-sided adhesive foam. Furthermore, after removing the transparent protective film, the holes in the double-sided adhesive foam and the colored release film are exposed, facilitating the alignment of the holes with the IR hole of the touch screen cover for testing. This reduces touch screen wear. In other words, when testing is needed, only the transparent protective film needs to be removed, while the colored release film remains attached to the double-sided adhesive foam and does not affect the testing results. Attached Figure Description

[0033] Figure 1 This is a flowchart illustrating step S1 of the present invention;

[0034] Figure 2 This is a flowchart illustrating step S2 of the present invention;

[0035] Figure 3 This is a flowchart illustrating step S3 of the present invention;

[0036] Figure 4 This is a flowchart illustrating step S4 of the present invention;

[0037] Figure 5 This is a flowchart illustrating step S5 of the present invention;

[0038] Figure 6 This is a schematic diagram of the structure of the composite double-sided adhesive foam of the present invention after it is attached to the touch screen cover. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figure 1-6 ,

[0041] A composite double-sided adhesive foam processing technology includes: S1 punching process of large board raw material; S2 bonding and opening process of double-sided adhesive foam and colored heavy release film of large board; S3 bonding and punching process of double-sided adhesive foam, colored heavy release film combination and single protective film; and S4 roll-up process of composite double-sided adhesive foam.

[0042] In step S1, the specific process includes the following steps:

[0043] S11, Preparatory large-format colorless transparent protective film raw materials and large-format foam double-sided adhesive raw materials.

[0044] Large-format colorless transparent protective film raw materials are laid out and cut according to the width of the protective film to obtain individual transparent protective films;

[0045] After the large-format foam double-sided adhesive raw materials are laid out according to the outer contour of the foam, they are punched and waste removed to obtain multiple sheets of foam double-sided adhesive.

[0046] The size of a single sheet of double-sided foam adhesive obtained after die-cutting a large sheet of double-sided foam adhesive is the same as the size of the touch screen cover.

[0047] In step S2, the specific process includes the following steps:

[0048] S21. Prepare a large-format colored heavy release film. After step S1, cut and remove waste, cover the large-format colored heavy release film with multiple sheets of foam double-sided adhesive.

[0049] S22. Arrange the IR holes on the foam double-sided adhesive and colored heavy release film composite. When arranging, the hole positions of the IR holes correspond to the IR hole positions of the touch screen cover.

[0050] S23. The composite material arranged through IR holes in step S22 is punched and waste is removed to obtain a composite material with perforated foam double-sided adhesive and colored heavy release film.

[0051] In step S3, the foam double-sided adhesive and colored heavy release film composite is attached in step S2.

[0052] Please see Figure 3 In step S3, the specific process includes the following steps:

[0053] S31. Cover the combination of double-sided foam adhesive and colored heavy release film onto the single protective film obtained in step S1, and make the single protective film cover the opening position.

[0054] S32. Arrange the colored heavy release film according to its outer contour and viewing area contour, and after punching and waste removal, obtain a combination of foam double-sided adhesive, colored heavy release film and single protective film.

[0055] S33. The composite obtained after step S32 is flipped over as a whole.

[0056] Please see Figure 4 In step S4, the specific process includes the following steps:

[0057] S41. Prepare a large-format light release film. Cover the large-format light release film with the combination of foam double-sided adhesive, colored heavy release film and single protective film obtained in step S33.

[0058] S42. The large-format light release film composite obtained in step S41 is rolled up to form a roll of composite double-sided adhesive foam for shipment.

[0059] Please see Figure 1 Step S11 specifically includes: reserving sufficient tear handle size during layout, that is, the distance between the two foam double-sided adhesives needs to be sufficient for the layout of the tear handle. The tear handle here is formed on the colored heavy release film, and its effect is to facilitate the subsequent tearing off of the colored heavy release film to expose the adhesive side of the foam double-sided adhesive.

[0060] Please see Figure 5-6 To achieve the above objectives, a process for installing composite double-sided adhesive foam on a touchscreen is provided, comprising the following steps:

[0061] This includes step S5, installing roll-type composite double-sided adhesive foam onto the touch screen semi-finished product.

[0062] In step S5, the specific process includes the following steps:

[0063] S51. Perform pre-production installation and debugging on roll-type composite double-sided adhesive foam.

[0064] S52. Prepare a semi-finished touch screen product, and bend the FPC on the semi-finished touch screen product before putting it into the production line.

[0065] S53. The semi-finished touch screen and the roll-type composite double-sided adhesive foam are combined on the production line and the automated bonding operation is completed in the touch screen assembly department.

[0066] S54. Manually attach green or yellow flag tear handles to a single protective film to peel off the transparent protective film, revealing the holes made in the double-sided adhesive foam and the colored release film.

[0067] Please see Figure 6 In step S53, the front side of the double-sided adhesive foam is attached to the back side of the touch screen cover, and the IR holes on the double-sided adhesive foam correspond to the IR holes on the touch screen cover, thus completing the attachment and installation of the touch screen cover and the composite double-sided adhesive foam.

[0068] It should be noted that the composite double-sided adhesive foam processing steps S1, S2, S3, and S4 are all completed in the auxiliary material production department; the installation process S5 on the touch screen is completed automatically in the touch screen assembly department.

[0069] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A processing technology for composite double-sided adhesive foam, characterized in that, The process includes: S1, the punching process of the large-format raw material; S2, the bonding and opening process of the double-sided adhesive foam and the colored heavy release film of the large-format foam; S3, the bonding and punching process of the double-sided adhesive foam, the colored heavy release film combination, and the single protective film; and S4, the rolling process of the composite double-sided adhesive foam. In step S1, the specific process includes the following steps: S11, preparing the large-format colorless transparent protective film raw material and the large-format double-sided adhesive foam raw material; the large-format colorless transparent protective film raw material is cut according to the width of the protective film to obtain a single transparent protective film; the large-format double-sided adhesive foam raw material is arranged according to the outer contour of the foam, punched, and waste is removed to obtain multiple sheets of double-sided adhesive foam; the single sheet of foam obtained after punching the large-format double-sided adhesive foam... The size of the double-sided adhesive foam is the same as the size of the touch screen cover. In step S2, the specific process includes the following steps: S21, prepare a large-format colored release film, and cover the large-format colored release film with multiple sheets of double-sided adhesive foam obtained after punching and waste removal in step S1; S22, arrange the IR holes on the combination of double-sided adhesive foam and colored release film, and the hole positions of the IR holes correspond to the IR hole positions of the touch screen cover; S23, punch and remove waste from the combination after IR hole arrangement in step S22 to obtain a combination of double-sided adhesive foam and colored release film with holes; In step S3, the combination of double-sided adhesive foam and colored release film is attached in step S2.

2. The composite double-sided adhesive foam processing technology according to claim 1, characterized in that, In step S3, the specific process The process includes the following steps: S31, covering the combination of double-sided foam adhesive and colored heavy release film onto the single protective film obtained in step S1, and making the single protective film cover the opening position; S32, arranging according to the outer contour and viewing area contour of the colored heavy release film, punching and removing waste to obtain the combination of double-sided foam adhesive, colored heavy release film and single protective film; S33, flipping the combination obtained after step S32 as a whole.

3. The composite double-sided adhesive foam processing technology according to claim 2, characterized in that, In step S4, the specific process includes the following steps: S41, prepare a large-format light release film, and cover the large-format light release film with the combination of foam double-sided adhesive, colored heavy release film and single protective film obtained in step S33; S42, roll up the large-format light release film combination obtained in step S41 to form a roll of composite double-sided adhesive foam for shipment.

4. The composite double-sided adhesive foam processing technology according to claim 1, characterized in that, Step S11 specifically includes reserving sufficient tear handle size during layout.

5. A process for installing composite double-sided adhesive foam on a touch screen, employing the composite double-sided adhesive foam processing technology according to any one of claims 1-4, characterized in that, This includes step S5, installing roll-type composite double-sided adhesive foam onto the touch screen semi-finished product.

6. The composite double-sided adhesive foam processing technology according to claim 5, characterized in that, In step S5, the specific process includes the following steps: S51, performing pre-production installation and debugging on the roll-type composite double-sided adhesive foam; S52, preparing the touch screen semi-finished product, and bending the FPC on the touch screen semi-finished product before putting it into the production line; S53, the touch screen semi-finished product and the roll-type composite double-sided adhesive foam are combined on the production line, and the automated attachment operation is completed in the touch screen assembly department; S54, manually attaching green or yellow flag tear handles to individual protective films.

7. The composite double-sided adhesive foam processing technology according to claim 6, characterized in that, In step S53, the front side of the double-sided adhesive foam is attached to the back side of the touch screen cover, and the IR holes on the double-sided adhesive foam correspond to the IR holes on the touch screen cover, thus completing the attachment and installation of the touch screen cover and the composite double-sided adhesive foam.

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