Glass cover plate printed by one-body black process ink, and preparation method and application thereof

Abstract

The present disclosure provides a one-body black process ink printed glass cover plate and a preparation method and application thereof. The one-body black process ink printed glass cover plate comprises a base plate, a mixed ink layer, an Icon ink layer and a BM2 ink layer printed in sequence on one side of the base plate, and an AG layer and a plating layer arranged in sequence on the other side of the base plate; the mixed ink layer is printed by mixed ink, and the mixed ink comprises a BM1 ink and an Icon ink, and the mass ratio of the BM1 ink to the Icon ink is 100:(160-240). The one-body black process ink printed glass cover plate provided by the present disclosure can achieve a hiding effect for the glass cover plate with Icon characters after printing and plating, solves the problem that the glass cover plate product with Icon characters cannot be hidden, and can significantly improve the product yield and production efficiency.

Description

Technical Field

[0001] This disclosure relates to the field of glass surface printing technology, and in particular to a glass cover plate printed with integral black ink, its preparation method and application. Background Technology

[0002] With the widespread use of various electronic products, the requirements for the visual effects of displays are becoming increasingly higher, which also places higher demands on the manufacturing of glass covers. Adopting "integrated black technology" allows the entire screen to be pure black in standby mode, making the overall product design more seamless.

[0003] To address the issue of glass covers with Icon characters failing to meet concealment requirements, existing integrated black ink printing processes generally include the following steps: raw materials → full-surface Icon ink printing → full-surface BM1 ink printing → full-surface BM2 ink printing → AG spraying → coating. The Icon ink layer (black semi-transparent ink) serves to meet infrared sensing requirements, brightness, and concealment; the BM1 ink (screen printing ink) primarily functions to be tinted according to a pre-set module color; the BM2 ink layer protects the underlying ink layers; BM2 ink can be an untinted ink of the same type as BM1 ink; AG spraying treats the glass surface, transforming a smooth surface into a matte one without affecting light transmission; the resulting AG layer (semi-transparent anti-glare layer) provides anti-glare and enhances surface strength; and the coating gives the glass cover surface UV resistance, acid and alkali resistance, and superior surface hardness.

[0004] However, since Icon ink is a semi-transparent ink, its transmittance needs to be controlled during production, resulting in low printing efficiency, poor product yield, unstable transmittance, uneven color, black and white spots, and the possibility of operators accidentally touching the ink area of ​​the product, leading to color differences. Summary of the Invention

[0005] One of the technical problems that this disclosure aims to solve is the low printing efficiency and unstable product transmittance of glass cover plates prepared using the existing integrated black process.

[0006] To solve the above-mentioned technical problems, in a first aspect, embodiments of this disclosure provide a glass cover plate printed with an integral black ink process, including a base plate, a mixed ink layer, an Icon ink layer and a BM2 ink layer printed sequentially on one side of the base plate, and an AG layer and a coating layer arranged sequentially on the other side of the base plate; the mixed ink layer is printed with mixed ink, which includes BM1 ink and Icon ink, and the mass ratio of BM1 ink to Icon ink is 100:(160~240).

[0007] In some embodiments, the mixed ink further includes toner, with a mass ratio of BM1 ink to toner of 100:(4-5). Adding toner to the mixed ink can adjust the brightness of the ink color.

[0008] Secondly, embodiments of this disclosure provide a method for preparing a glass cover plate printed with integral black ink according to the first aspect, comprising the following steps:

[0009] S1. Print mixed ink on one side of the original plate and dry;

[0010] S2. Print Icon ink across the entire surface of the mixed ink layer and dry;

[0011] S3. Print BM2 ink onto the entire Icon ink layer and dry;

[0012] S4. Spray AG coating onto the entire other side of the original board and dry;

[0013] S5. Coat the entire AG layer to obtain a glass cover plate with integrated black ink printing.

[0014] The glass cover plate prepared using the method provided in this disclosure for integral black ink printing only requires measurement at 5 points to test the transmittance uniformity. If the integral black glass cover plate is prepared by first printing the Icon on the entire surface and then printing the BM1 glass cover plate on the entire surface, the testing is more difficult, generally requiring measurement at 15 points.

[0015] In some embodiments, the thickness of the printed mixed ink is 4–7 μm, the thickness of the printed Icon ink is 8–14 μm, the thickness of the printed BM2 ink is 14–18 μm, the thickness of the sprayed AG is 150–220 nm, and the thickness of the coating is 250–350 nm.

[0016] In some embodiments, the screen number for printing the mixed ink in step S1 is 380 to 420 mesh.

[0017] In some embodiments, the distance between the screen and the substrate in step S1 is 3-6 mm, the printing speed is 100-300 mm / s, and the ink return speed is 200-500 mm / s.

[0018] In some embodiments, the distance between the screen and the substrate in step S2 is 3-6 mm, the printing speed is 100-300 mm / s, and the ink return speed is 200-500 mm / s.

[0019] In some embodiments, the distance between the screen and the substrate in step S3 is 3-6 mm, the printing speed is 100-300 mm / s, and the ink return speed is 200-500 mm / s.

[0020] In some embodiments, drying in step S1 is baking at 180–200°C for 8–12 minutes.

[0021] In some embodiments, drying in step S2 is baking at 180–200°C for 8–12 minutes.

[0022] In some embodiments, drying in step S3 is baking at 180–200°C for 8–12 minutes.

[0023] In some embodiments, drying in step S4 is baking at 140–160°C for 40–80 minutes.

[0024] Thirdly, embodiments of this disclosure provide the application of the glass cover plate printed with integral black ink as described in the first aspect in a display device.

[0025] Through the above technical solution, the glass cover plate printed with integrated black ink provided in this disclosure can achieve a hidden effect after printing and coating of glass cover plates with Icon characters, solving the problem that glass cover plate products with Icon characters cannot be hidden, and can significantly improve product yield and production efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram showing the transmittance test results of the glass cover plate printed with the integrated black ink prepared in Example 1.

[0027] Figure 2 This is a schematic diagram showing the transmittance test results of the glass cover plate printed with the integrated black process ink prepared in Comparative Example 4. Detailed Implementation

[0028] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0029] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0030] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," etc., indicating orientation or positional relationship are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0032] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0033] In the following examples and comparative examples, the BM1 ink used was Miramar NM-G-5020, the Icon ink was Miramar MT-IR-3060J-1, the BM2 ink was Miramar NM-M1, the AG solution was PPG-AG201 / 4k-c1, the coating used was AF pellets (Taiyue E-T14C), and the toner was Orion FW-200.

[0034] Example 1

[0035] The manufacturing process of a glass cover plate printed with integrated black ink includes:

[0036] S1. Mix BM1 ink and Icon ink evenly at a mass ratio of 100:200 to obtain mixed ink; print the mixed ink on one side of the original plate with a screen number of 380 mesh, a screen distance of 5 mm from the substrate, a printing speed of 200 mm / s, an ink return speed of 400 mm / s, and adjust the film thickness to 4-7 μm by adjusting the pressure; after printing, bake at 190℃ for 10 min.

[0037] S2. Print Icon ink on the entire surface of the mixed ink layer. The printing mesh count is 380 mesh, the distance between the screen and the substrate is 5 mm, the printing speed is 200 mm / s, the ink return speed is 400 mm / s, and the film thickness is adjusted to 8-14 μm by adjusting the pressure. After printing, bake at 190℃ for 10 min.

[0038] S3. Print BM2 ink on the entire surface of the Icon ink layer. The printing mesh number is 380 mesh, the distance between the screen and the substrate is 5 mm, the printing speed is 200 mm / s, the ink return speed is 400 mm / s, and the film thickness is adjusted to 14-18 μm by adjusting the pressure. After printing, bake at 190℃ for 10 min.

[0039] S4. Spray AG solution onto the entire other side of the original board to make the AG layer thickness 150-220nm, and then bake at 150℃ for 1h.

[0040] S5. Coat the entire AG layer with a film thickness of 250-350nm. After coating, let it stand for 1 hour to obtain a glass cover plate with integrated black ink printing.

[0041] The glass cover plate prepared in this embodiment with integrated black ink printing has no visible Icon characters against a black background.

[0042] The transmittance of the glass cover plate printed with the integrated black ink prepared in this embodiment was tested, and the test results are as follows: Figure 1 As shown. From Figure 1 As can be seen, the glass cover plate printed with integrated black ink prepared in this embodiment only requires detection at 5 sites, and the transmittance data is stable.

[0043] Example 2

[0044] The glass cover plate printed with integrated black ink is prepared according to Example 1, except that the mass ratio of BM1 ink to Icon ink is 100:160.

[0045] The glass cover plate prepared in this embodiment with integrated black ink printing has no visible Icon characters against a black background.

[0046] Example 3

[0047] The glass cover plate printed with integrated black ink is prepared according to Example 1, except that the mass ratio of BM1 ink to Icon ink is 100:240.

[0048] The glass cover plate prepared in this embodiment with integrated black ink printing has no visible Icon characters against a black background.

[0049] Example 4

[0050] The glass cover plate printed with integrated black ink is prepared in the same way as in Example 1, except that BM1 ink, Icon ink and toner are mixed evenly in a mass ratio of 100:200:4 to obtain mixed ink.

[0051] The glass cover plate prepared in this embodiment with integrated black ink printing has no visible Icon characters against a black background.

[0052] Comparative Example 1

[0053] The glass cover plate printed with integrated black ink is prepared according to Example 1, except that the mass ratio of BM1 ink to Icon ink is 100:120.

[0054] The glass cover plate printed with the integrated black ink prepared in this comparative example shows the Icon character visible against a black background.

[0055] Comparative Example 2

[0056] The glass cover plate printed with integrated black ink is prepared according to Example 1, except that the mass ratio of BM1 ink to Icon ink is 100:280.

[0057] The glass cover plate printed with the integrated black ink prepared in this comparative example shows the Icon character visible against a black background.

[0058] Comparative Example 3

[0059] The glass cover plate printed with integrated black ink is prepared according to the same method as in Example 1, except that the mixed ink is replaced with BM1 ink.

[0060] The glass cover plate printed with the integrated black ink prepared in this comparative example shows the Icon character visible against a black background.

[0061] Comparative Example 4

[0062] The manufacturing process of a glass cover plate printed with integrated black ink includes:

[0063] S1. Print Icon ink on one side of the original plate with a screen count of 380 mesh, a screen distance of 5 mm from the substrate, a printing speed of 200 mm / s, an ink return speed of 400 mm / s, and adjust the film thickness to 8-14 μm by adjusting the pressure. After printing, bake at 190℃ for 10 min.

[0064] S2. Print BM1 ink on the entire surface of the mixed ink layer. The printing mesh number is 380 mesh, the distance between the screen and the substrate is 5 mm, the printing speed is 200 mm / s, the ink return speed is 400 mm / s, and the film thickness is adjusted to 4-7 μm by adjusting the pressure. After printing, bake at 190℃ for 10 min.

[0065] S3. Print BM2 ink on the entire surface of the Icon ink layer. The printing mesh number is 380 mesh, the distance between the screen and the substrate is 5 mm, the printing speed is 200 mm / s, the ink return speed is 400 mm / s, and the film thickness is adjusted to 14-18 μm by adjusting the pressure. After printing, bake at 190℃ for 10 min.

[0066] S4. Spray AG onto the entire other side of the original board to make the AG layer thickness 150-220nm, and then bake at 150℃ for 1h.

[0067] S5. Coat the entire AG layer with a film thickness of 250-350nm. After coating, let it stand for 1 hour to obtain a glass cover plate with integrated black ink printing.

[0068] The glass cover plate printed with the integrated black ink prepared in this comparative example has no visible Icon characters against a black background.

[0069] The transmittance of the glass cover plate printed with the integrated black ink prepared in this comparative example was tested, and the test results are as follows: Figure 2 As shown. From Figure 2 It can be seen that 15 sites need to be detected on the glass cover plate printed with the integrated black process ink prepared in this comparative example, and the transmittance data is unstable, which increases the difficulty of the operation.

[0070] Lab value test results

[0071] The Lab values ​​of the glass covers printed with integral black ink in Examples 1, 4, and Comparative Example 4 were tested (testing equipment: Minolta CM2600D), and the results are shown in Tables 1-3 respectively:

[0072] Table 1. Lab values ​​of glass cover plates printed with integral black ink in Example 1.

[0073]

[0074]

[0075] Table 2. Lab values ​​of the glass cover plate printed with integral black ink in Example 4.

[0076] L*(D65) a*(D65) b*(D65) 26.13 -0.06 -0.65 26.14 -0.08 -0.6 26.11 -0.07 -0.59 26.11 -0.07 -0.61 26.38 -0.05 -0.43 26.37 -0.05 -0.42 26.36 -0.05 -0.44 26.38 -0.06 -0.46 26.34 -0.08 -0.46 26.36 -0.05 -0.46 26.35 -0.06 -0.46 26.31 -0.08 -0.45 26.35 -0.07 -0.47 26.11 -0.06 -0.56 26.23 -0.03 -0.55 26.26 -0.05 -0.51 26.13 -0.07 -0.42 26.18 -0.05 -0.43 26.15 -0.05 -0.42 26.13 -0.07 -0.62

[0077] Table 3 shows the Lab values ​​of the glass cover plates printed with integral black ink in Comparative Example 4.

[0078]

[0079]

[0080] The test results above show that there is no significant difference in the Lab value of the glass cover plate printed with the integrated black ink process in Example 1 compared to that of the glass cover plate printed with the integrated black ink process in Comparative Example 4. The L value of the glass cover plate printed with the integrated black ink process in Example 4 is higher than that of Example 1, but the Lab value still meets the usage requirements.

[0081] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0082] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A glass cover plate printed with an integral black process ink, characterized in that, The glass cover plate comprises a raw plate, a mixed ink layer printed on one side of the raw plate in sequence, an Icon ink layer and a BM2 ink layer, and an AG layer and a film layer arranged on the other side of the raw plate in sequence; the mixed ink layer is printed by mixed ink, the mixed ink comprises BM1 ink and Icon ink, and the mass ratio of the BM1 ink to the Icon ink is 100: (160-240); The mixed ink further comprises carbon powder, and the mass ratio of the BM1 ink to the carbon powder is 100: (4-5); The printing method of the glass cover plate comprises the following steps: Step S1. printing mixed ink on one side of the raw plate, and drying; Step S2. printing Icon ink on the mixed ink layer, and drying; Step S3. printing BM2 ink on the Icon ink layer, and drying; Step S4. spraying AG on the other side of the raw plate, and drying; Step S5. coating a film on the AG layer to obtain a glass cover plate printed by one-piece black process ink; The thickness of the printed mixed ink is 4-7 μm, the thickness of the printed Icon ink is 8-14 μm, the thickness of the printed BM2 ink is 14-18 μm, the thickness of the sprayed AG is 150-220 nm, and the thickness of the coated film is 250-350 nm; The BM1 ink used is NM-G-5020, the Icon ink is MT-IR-3060J-1, and the BM2 ink is NM-M1.

2. The glass cover sheet of claim 1, wherein, The printing screen count of the printed mixed ink in step S1 is 380-420.

3. The glass cover sheet of claim 1, wherein, The distance between the screen plate and the printing substrate in step S1 is 3-6 mm, the printing speed is 100-300 mm / s, and the ink return speed is 200-500 mm / s.

4. The glass cover sheet of claim 1, wherein, The distance between the screen plate and the printing substrate in step S2 is 3-6 mm, the printing speed is 100-300 mm / s, and the ink return speed is 200-500 mm / s.

5. The glass cover sheet of claim 1, wherein, The distance between the screen plate and the printing substrate in step S3 is 3-6 mm, the printing speed is 100-300 mm / s, and the ink return speed is 200-500 mm / s.

6. The glass cover sheet of claim 1, wherein, The drying in step S1 is baking at 180-200 ℃ for 8-12 min; The drying in step S2 is baking at 180-200 ℃ for 8-12 min; The drying in step S3 is baking at 180-200 ℃ for 8-12 min; The drying in step S4 is baking at 140-160 ℃ for 40-80 min.

7. The glass cover plate of claim 1 is applied in a display device.

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