A method of OGS glass silk screen printing back cover ink

Abstract

The present application relates to a kind of OGS glass silk printing reverse cover ink method, the method specifically includes the following steps: incoming large piece OGS glass, large piece OGS glass is the OGS glass that has done complete line, line includes BM frame, first I TO layer, first OC layer, second ITO layer, MAM wiring layer and second OC layer;On large piece OGS glass, silk printing reverse cover ink is printed on whole surface, wherein, the outer edge of reverse cover ink is extended 3-5mm relative to BM frame;Cut and CNC is small particle size glass, since the size of reverse cover ink is larger than BM frame, when cutting and CNC are carried out, edge can be trimmed neatly using cutting and CNC, and appearance is not presented with reverse cover ink when customer looks. The method proposed in the present application can solve the problem of missing ink on the edge of the glass on the one hand, and can improve the silk printing efficiency on the other hand, and the ink pattern extended outward will not affect the final appearance and size of the product after cutting and CNC, that is, the precision of silk printing will not be affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of OGS glass, in particular to a method for silk printing back cover ink of OGS glass. BACKGROUND

[0002] The back cover ink needs to be silk printed in the TP and cover plate industry of OGS. At present, small particle glass is used for silk printing, and the edge size of the back cover ink is smaller than the peripheral edge size of the glass during silk printing. This silk printing method is low in efficiency, and a certain proportion of ink is missing due to the shrinkage of the back cover ink to the glass periphery. Therefore, a new silk printing method needs to be proposed to solve the problems in the prior art. SUMMARY

[0003] The present application provides a method for silk printing back cover ink of OGS glass, which mainly expands the silk printing ink outward when silk printing the whole large piece of glass. It aims to solve the problems of slow efficiency of silk printing back cover ink of small particle glass and poor precision of silk printing of large piece of glass, and the problem of missing a certain proportion of ink due to the shrinkage of the back cover ink to the glass periphery in the prior art.

[0004] Specifically, the present application provides a method for silk printing back cover ink of OGS glass, which specifically includes the following steps:

[0005] The incoming large piece of OGS glass refers to the OGS glass that has completed all the lines, wherein the lines include the BM frame, the first ITO layer, the first OC layer, the second ITO layer, the MAM wiring layer and the second OC layer, that is, the incoming large piece of OGS glass contains a plurality of small particle glasses, which are cut and CNC processed later;

[0006] The back cover ink is silk printed on the large piece of OGS glass, wherein the outer edge of the back cover ink is expanded by 3-5mm relative to the BM frame;

[0007] Cutting and CNC processing into small particle glasses, since the size of the back cover ink is larger than that of the BM frame, the cutting and CNC processing can trim the edges neatly, and the appearance does not show the back cover ink when viewed by the customer.

[0008] Since the size of the back cover ink is larger than that of the BM frame, the cutting and CNC processing can trim the edges neatly, and the appearance does not show the back cover ink after subsequent cutting and CNC processing. Using this method to silk print the back cover ink will not affect the product precision, and silk printing on the large piece of OGS glass improves the production efficiency.

[0009] As a preferred technical solution, when silk printing the back cover ink on the large piece of OGS glass, the speed of the silk printing doctor blade is set to 40-60mm / s, and the pressure is set to 0.30-0.40MPa.

[0010] As a preferred technical solution, when the reverse cover ink is screen printed on the large piece of OGS glass, the printing interval is set to 3-9mm, and the scraper angle is 10-20°.

[0011] As a preferred technical solution, when the small particle size glass is cut and CNCed, the cutting speed is set to 400-800mm / s.

[0012] As a preferred technical solution, when the small particle size glass is cut and CNCed, the laser power is set to 10-1000W.

[0013] As a preferred technical solution, when the small particle size glass is cut and CNCed, the grinding head rotation speed is set to 30000-40000R / s.

[0014] As a preferred technical solution, when the small particle size glass is cut and CNCed, the grinding head grit is set to 350 or 500 or 800.

[0015] As a preferred technical solution, when the small particle size glass is cut and CNCed, the medium sand groove angle is set to 80°, and the groove width is 0.93mm.

[0016] As a preferred technical solution, when the small particle size glass is cut and CNCed, the fine sand groove angle is set to 70°, and the width is 0.89mm.

[0017] As a preferred technical solution, the second OC layer is a film layer made of an insulating transparent material.

[0018] The present application has the following technical effects relative to the prior art: the technical solution of the present application screen prints the reverse cover ink on the large piece of glass after the entire circuit is completed, and the outer edge of the reverse cover ink is extended outward by 3-5mm relative to the BM frame. Since the size of the reverse cover ink is larger than the BM frame, the edge can be trimmed neatly by cutting and CNCing, and the customer does not see the reverse cover ink when viewing the appearance. This method can solve the problem of missing ink on the edge of the glass, improve the screen printing efficiency, and the outwardly extended ink pattern does not affect the final appearance and size of the product after cutting and CNCing.

[0019] Other features and advantages of the present application will be set forth in the subsequent description, and some will become apparent from the description, or will be learned through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A method for screen printing reverse cover ink on OGS glass according to embodiments 1-3 of the present application is shown in the schematic diagram.

[0021] Figure 2The structure schematic diagram of the large piece OGS glass after the silk screen printing of the reverse cover ink is proposed in embodiments 1-3 of the present application;

[0022] Figure 3 The structure schematic diagram of the OGS glass after the silk screen printing of the reverse cover ink is cut into small particle glass is proposed in embodiments 1-3 of the present application;

[0023] Figure 4 The side structure schematic diagram of the OGS glass after the silk screen printing of the reverse cover ink is cut into small particle glass is proposed in embodiments 1-3 of the present application.

[0024] Explanation of reference signs:

[0025] Large piece OGS glass 1; small particle glass 11; BM frame 111; reverse cover ink 112; VA area 113. DETAILED DESCRIPTION

[0026] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely below in combination with specific embodiments of the present application and corresponding drawings. In the description of the present application, it should be noted that the term “or” is generally used in the sense of including “and / or”, unless the context clearly indicates otherwise.

[0027] It should be understood that each step described in the method embodiments of the present application can be executed in different order and / or in parallel. In addition, the method embodiments can include additional steps and / or omit the execution of the steps shown. The scope of the present application is not limited in this respect.

[0028] The term “comprising” and variations thereof as used in the present application are open-ended, that is, “including but not limited to”. The term “based on” is “at least partially based on”. The term “one embodiment” means “at least one embodiment”; the term “another embodiment” means “at least one additional embodiment”; the term “some embodiments” means “at least some embodiments”. Related definitions of other terms will be given in the following description.

[0029] It should be noted that the modification of “one” and “multiple” mentioned in the present application is illustrative but not restrictive, and those skilled in the art should understand that “one or more” should be understood unless the context clearly indicates otherwise. “Multiple” should be understood as two or more.

[0030] Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. Embodiment 1

[0031] AsFigure 1 The diagram shown is a schematic representation of a method for printing OGS glass screen printing reverse-cover ink 112 according to an embodiment of the present invention. The specific method includes:

[0032] S10: As Figure 2 As shown, the incoming material is a large sheet of OGS glass 1, which is OGS glass with all circuits already completed. Those skilled in the art should understand that the large sheet of OGS glass 1 referred to here is a large sheet of glass that includes many small glass particles 11, wherein the circuit includes a BM frame 111, a first ITO layer, a first OC layer, a second ITO layer, and a second OC layer.

[0033] Those skilled in the art should understand that, during the fabrication of a large OGS glass 1, a BM layer ring frame is first made to cover the metal lines and prevent customers from seeing them on the touch surface, thus enhancing the product's aesthetics. Then, the first ITO layer, the first OC layer, and the second ITO layer patterns are sequentially made to form the lines in the VA area 113. Next, a metal trace pattern is made around the VA area 113 to connect the lines formed in the VA area 113 one by one, while reserving positions for gold fingers to prepare for subsequent FPC bonding. Finally, a second OC layer pattern is made in the VA area 113 and the metal trace area to protect the metal traces and the VA area 113 pattern.

[0034] Because the second OC layer pattern is usually made of an insulating and transparent material, the metal traces are visible on the surface lines after the second OC layer pattern is completed, so it is necessary to use cover ink 112 to mask them.

[0035] S20: Continue to refer to Figure 2 A reverse-overprint ink 112 is screen-printed across the entire surface of the large OGS glass 1, wherein the outer edge of the reverse-overprint ink 112 extends 4mm outward relative to the BM frame 111. Those skilled in the art should understand that this outward extension actually means extending the screen-printed area beyond the outer perimeter of the small glass particles 11.

[0036] S30: As Figure 3 , 4 The glass is cut and CNC machined to a small particle size. Since the size of the reverse cover ink 112 is larger than that of the BM frame 111, the edges can be neatly trimmed during the cutting and CNC process, so that the appearance of the reverse cover ink 112 is not visible when viewed from the customer's side.

[0037] Due to the poor precision of silk printing, the reverse cover ink 112 will be inwardly retracted relative to the BM frame 111 when silk printing the reverse cover ink 112 on the existing OGS glass. Due to silk printing precision and other problems, the edge of the reverse cover ink 112 will be staggered and uneven, and therefore, in order to improve the silk printing precision, the prior art needs to cut the large piece of glass into a plurality of small particle glasses 11 to silk print the reverse cover ink 112, because the precision of silk printing the reverse cover ink 112 on the small particle glass 11 is higher than that of silk printing the reverse cover ink 112 on the large piece. For example, the BM frame 111 is a 2cm ring frame, and when silk printing the reverse cover ink 112, the reverse cover ink 112 will be inwardly retracted by 2-3mm on each side, so that when viewed by the naked eye on the touch surface, the black frame is neat and beautiful, but this method will affect the production efficiency. In the present embodiment, the large piece of glass with all the lines is directly silk printed with the reverse cover ink 112, and in order to avoid the problem of poor precision caused by large deformation of the silk printing screen, the ink pattern edge is outwardly expanded by 2-5mm, and the outwardly expanded ink pattern will not affect the final appearance and size of the product after subsequent cutting and CNC. In some preferred embodiments, when silk printing the reverse cover ink 112 on the large piece, the BM frame 111 is a 2cm ring frame, and when silk printing the reverse cover ink 112, the reverse cover ink 112 frame will be outwardly expanded by 4mm based on the BM frame. Since the size of the reverse cover ink 112 is larger than that of the BM frame 111, the edge can be trimmed neatly by cutting and CNC after subsequent cutting and CNC, and the customer can view the appearance without the reverse cover ink 112. Therefore, silk printing the reverse cover ink 112 using this method can avoid the problem of poor silk printing precision on the large piece, will not affect the product precision, and can improve the production efficiency. It provides a new method for silk printing the reverse cover ink 112 on the OGS glass for those skilled in the art.

[0038] Preferably, when silk printing the reverse cover ink 112 on the large piece of OGS glass 1, the speed of the silk printing squeegee is set to 50mm / s and the pressure is set to 0.45MPa. Preferably, when silk printing the reverse cover ink 112 on the large piece of OGS glass 1, the printing distance is set to 6mm and the squeegee angle is set to 15°. By setting in this way, the silk printing effect can be more uniform and consistent, and the silk printing defects such as missing and repulsion can be reduced.

[0039] Preferably, when cutting and CNCing the small particle size glass, the cutting speed is set to 600mm / s. If the cutting speed is too fast, the glass may not be cut through, causing the glass to break when cracking, and if the cutting speed is too slow, the cutting efficiency will be affected. By setting in this way, the cutting requirements can be met.

[0040] Preferably, when cutting and CNCing the small particle size glass, the laser power is set to 500W. If the cutting power is too high, the product will be burned and discolored, and if the power is too low, the glass may not be cut through, affecting the cracking and causing the glass to break.

[0041] Preferably, when cutting and CNCing the small particle size glass, the grinding head rotation speed is set to 35000R / s. A high grinding head speed can cause the glass edge to burn and be prone to edge collapse and other undesirable phenomena, and a low grinding head speed can affect the grinding rate.

[0042] Preferably, when cutting and CNCing the small particle size glass, the grinding head grit is set to 350. The composition and use of the grinding sand can affect the grinding effect, and improper composition can cause edge collapse and other undesirable phenomena.

[0043] Preferably, when cutting and CNCing the small particle size glass, the medium sand slot angle is set to 80° and the slot width is 0.93mm. Preferably, when cutting and CNCing the small particle size glass, the fine sand slot angle is set to 70° and the width is 0.89mm. The sand slot angle and slot width can affect the chamfering of the final glass shape and whether there are edge collapse and other undesirable phenomena.

[0044] Preferably, the second OC layer is a film layer made of insulating transparent material. The second OC layer is mainly used to protect the metal trace, so that it will not be oxidized and corroded during subsequent use.

[0045] The above method is used to screenprint the OGS glass ink 112, and the small particle size glass 11 is cut and CNCed. When the customer views the appearance, the reverse cover ink 112 does not appear, and the edge of the small particle size glass 11 does not discolor or burn, and there is no edge collapse and other undesirable phenomena. The OGS glass ink 112 is screened and printed in this embodiment, and the small particle size glass 11 is cut and CNCed to produce high efficiency, and the small particle size glass 11 product prepared has good appearance quality. Example 2

[0046] As shown in Figure 1 , it is a method schematic diagram of the OGS glass ink 112 provided by the embodiment of the present application. Specifically, the method comprises:

[0047] S10: as Figure 2 shown, the incoming large piece of OGS glass 1 is a large piece of OGS glass that has already completed all the lines. Those skilled in the art should understand that the large piece of OGS glass 1 referred to here is a large plate glass including a plurality of small particle size glasses 11, wherein the lines include a BM frame 111, a first ITO layer, a first OC layer, a second ITO layer and a second OC layer.

[0048] S20: continuing to refer to Figure 2 , the reverse cover ink 112 is screen printed on the large piece of OGS glass 1, wherein the outer edge of the reverse cover ink 112 is extended outward by 3mm relative to the BM frame 111. Those skilled in the art should understand that the extension here actually extends the screen printing area to the outer size of the small particle size glass 11.

[0049] S30: As Figure 3 、 4 , cutting and CNC for small particle size glass, because the size of the back cover ink 112 is larger than the BM frame 111, when cutting and CNC, the edge can be trimmed neatly, and the customer can see the appearance of the back cover ink 112.

[0050] Preferably, when printing the back cover ink 112 on the large piece of OGS glass 1, the speed of the printing doctor blade is set to 40mm / s, and the pressure is 0.30MPa. Preferably, when printing the back cover ink 112 on the large piece of OGS glass 1, the printing distance is set to 3mm, and the doctor blade angle is 10°. In this way, the printing effect can be more uniform, and the phenomenon of printing missing / rejection can be reduced.

[0051] Preferably, when cutting and CNC for small particle size glass, the cutting speed is set to 400mm / s. If the cutting speed is too fast, the glass may not be cut through, causing the glass to break when cracking, and if the cutting speed is too slow, the cutting efficiency will be affected. In this way, the cutting requirement is met.

[0052] Preferably, when cutting and CNC for small particle size glass, the laser power is set to 10W. If the cutting power is too high, the product will be burned and discolored, and if the power is too low, the glass may not be cut through, affecting the cracking and causing the glass to break.

[0053] Preferably, when cutting and CNC for small particle size glass, the grinding head speed is set to 30000R / s. If the grinding head speed is too fast, the glass edge will be burned and the phenomenon of edge collapse will occur, and if the grinding head speed is too slow, the grinding rate will be affected.

[0054] Preferably, when cutting and CNC for small particle size glass, the grinding head grit is set to 350. The matching and use of the grinding sand will affect the effect after grinding, and improper matching will cause the phenomenon of edge collapse.

[0055] Preferably, when cutting and CNC for small particle size glass, the medium sand slot angle is set to 80°, and the slot width is 0.93mm. Preferably, when cutting and CNC for small particle size glass, the fine sand slot angle is set to 70°, and the width is 0.89mm. The sand slot angle and slot width will affect the chamfering of the final glass shape and whether there is the phenomenon of edge collapse.

[0056] Preferably, in the second OC layer is a film layer made of insulating transparent material. The second OC layer is mainly used to protect the metal trace, so that it will not be oxidized and corroded in subsequent use.

[0057] Using the above method, reverse-cover ink 112 is screen-printed on OGS glass. After cutting and CNC machining into small-diameter glass particles, no reverse-cover ink 112 is visible to the customer. Furthermore, the edges of the small glass particles 11 show no discoloration or scorching, and there are no defects such as edge chipping. Compared to Example 1, this embodiment of screen-printing reverse-cover ink 112 on OGS glass and then cutting and CNC machining into small glass particles 11 has lower production efficiency, and the appearance quality of the resulting small glass particle 11 product is also lower than that of the product prepared in Example 1. Example 3

[0058] like Figure 1 The diagram shown is a schematic representation of a method for printing OGS glass screen printing reverse-cover ink 112 according to an embodiment of the present invention. The specific method includes:

[0059] S10: As Figure 2 As shown, the incoming material is a large sheet of OGS glass 1, which is OGS glass with all circuits already completed. Those skilled in the art should understand that the large sheet of OGS glass 1 referred to here is a large sheet of glass that includes many small glass particles 11, wherein the circuit includes a BM frame 111, a first ITO layer, a first OC layer, a second ITO layer, and a second OC layer.

[0060] S20: Continue to refer to Figure 2 A reverse-overprint ink 112 is screen-printed across the entire surface of the large OGS glass 1, wherein the outer edge of the reverse-overprint ink 112 extends 5mm outward relative to the BM frame 111. Those skilled in the art should understand that this outward extension actually means extending the screen-printed area beyond the outer perimeter of the small glass particles 11.

[0061] S30: As Figure 3 , 4 The glass is cut and CNC machined to a small particle size. Since the size of the reverse cover ink 112 is larger than that of the BM frame 111, the edges can be neatly trimmed during the cutting and CNC process, so that the appearance of the reverse cover ink 112 is not visible when viewed from the customer's side.

[0062] Preferably, when screen printing the reverse overprint ink 112 onto the entire surface of a large OGS glass 1, the speed of the screen printing squeegee is set to 60 mm / s and the pressure to 0.40 MPa. Preferably, when screen printing the reverse overprint ink 112 onto the entire surface of a large OGS glass 1, the printing spacing is set to 9 mm and the squeegee angle to 20°. These settings ensure a more uniform and consistent screen printing effect and reduce defects such as missing or rejected prints.

[0063] Preferably, when cutting and CNCing the small particle size glass, the cutting speed is set to 800 mm / s. Because the cutting speed is too fast, the glass will not be cut through, causing the glass to break when it is cracked, and the cutting speed is slow, which will affect the cutting efficiency, so the setting meets the cutting requirements.

[0064] Preferably, when cutting and CNCing the small particle size glass, the laser power is set to 1000 W. If the cutting power is too high, the product will be burned and discolored, and if the power is too low, the glass will not be cut through, affecting the cracking and causing the glass to break.

[0065] Preferably, when cutting and CNCing the small particle size glass, the grinding head speed is set to 40000 R / s. Because the grinding head speed is too fast, the glass edge will be burned and discolored, and the edge collapse and other adverse phenomena will occur, and the grinding head speed is too slow, which will affect the grinding rate.

[0066] Preferably, when cutting and CNCing the small particle size glass, the grinding head sanding degree is set to 800. The combination and use of the sanding will affect the effect after grinding, and improper combination will cause edge collapse and other adverse phenomena.

[0067] Preferably, when cutting and CNCing the small particle size glass, the grinding head sanding degree is set to 800. The combination and use of the sanding will affect the effect after grinding, and improper combination will cause edge collapse and other adverse phenomena.

[0068] Preferably, the second OC layer is a film layer made of insulating transparent material. The second OC layer is mainly used to protect the metal trace, so that it will not be oxidized and corroded during subsequent use.

[0069] Using the above method, the OGS glass silk screen reverse cover ink 112 is cut and CNCed into small particle size glass, and when the customer watches the appearance, the reverse cover ink 112 does not appear, and the edge of the small particle glass 11 does not discolor, burn, and does not appear edge collapse and other adverse phenomena. In this embodiment, the OGS glass silk screen reverse cover ink 112 is cut and CNCed into small particle glass 11, compared with example 1, the production efficiency is improved, but the appearance quality of the small particle glass 11 product prepared is relatively lower than that of the product prepared in example 1, but the quality of the small particle glass 11 product prepared is relatively higher than that of example 2.

Claims

1. A method for screen printing reverse-cover ink on OGS glass, characterized in that, include: The incoming material is a large sheet of OGS glass, which is an OGS glass with all circuits already completed. The circuits include a BM frame, a first ITO layer, a first OC layer, a second ITO layer, a MAM trace layer, and a second OC layer. Screen printing reverse cover ink on the entire surface of the large OGS glass, wherein the outer edge of the reverse cover ink extends 3-5mm outward relative to the BM frame; Cutting and CNC machining the glass into small-diameter particles, since the size of the reverse cover ink is larger than that of the BM frame, the edges can be neatly trimmed during cutting and CNC machining, so that the appearance of the reverse cover ink is not visible from the customer's perspective; When screen printing reverse overprint ink on the entire surface of the large OGS glass, the speed of the screen printing squeegee is set to 40-60 mm / s, the pressure to 0.30-0.40 MPa, the printing spacing to 3-9 mm, and the squeegee angle to 10-20°.

2. The method for printing reverse-cover ink on OGS glass screen according to claim 1, characterized in that, When cutting and CNC machining small-diameter glass, the cutting speed is set to 400-800 mm / s.

3. The method for OGS glass screen printing reverse-cover ink according to claim 1, characterized in that, When cutting and CNC machining small-diameter glass, the laser power is set to 10-1000W.

4. The method for printing reverse-cover ink on OGS glass screen according to claim 3, characterized in that, When cutting and CNC machining small-diameter glass, the grinding head speed is set to 30,000 to 40,000 R / s.

5. The method for printing reverse-cover ink on OGS glass screen according to claim 1, characterized in that, When cutting and CNC machining small-diameter glass, the grinding head grit is set to 350, 500, or 800.

6. The method for OGS glass screen printing reverse cover ink according to claim 5, characterized in that, When cutting and CNC machining small-diameter glass, the angle of the medium sand groove is set to 80° and the groove width is 0.93mm.

7. The method for OGS glass screen printing reverse cover ink according to claim 5, characterized in that, When cutting and CNC machining small-diameter glass, the fine sand groove angle is set to 70° and the width is 0.89mm.

8. A method for printing reverse-cover ink on OGS glass screen according to any one of claims 1-7, characterized in that, The second OC layer is a film layer made of an insulating transparent material.

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