CN114919289B

CN114919289B - Ink-jet printing equipment and ink-jet printing method

Info

Publication number: CN114919289B
Application number: CN202210612075.XA
Authority: CN
Inventors: 夏宇飞; 张文兵; 高峰; 吴昊
Original assignee: Suzhou China Star Optoelectronics Technology Co Ltd
Current assignee: Suzhou Huaxing Photoelectric Display Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2023-06-27
Anticipated expiration: 2042-05-31
Also published as: CN114919289A

Abstract

The embodiment of the application discloses an inkjet printing device and an inkjet printing method, wherein the inkjet printing device comprises a nozzle module, a bracket and a plasma processing module, and the nozzle module moves along the printing direction; the bracket is connected with the spray head module; the plasma treatment module is arranged on the support and is positioned on one side of the spray head module along the printing direction, and the plasma treatment module is used for carrying out hydrophilic treatment on a component to be printed. The present application aims to make it possible to treat the surface of a member to be printed in real time, so as to improve the printing effect.

Description

Ink-jet printing equipment and ink-jet printing method

Technical Field

The application relates to the technical field of display, in particular to an inkjet printing device and an inkjet printing method.

Background

The periphery of the OLED backboard is required to be designed with a peripheral wiring area with a certain width, and the wiring of the area adopts a metal material to form reflection, so that the appearance of the display panel is seriously affected. Printing black ink (Bezel Printing) on the edge of an OLED package substrate for metallic line masking is currently a new solution in the industry. The ink jet printing black ink technology has the advantages of high position accuracy, thin film, no break difference, low material cost, suitability for narrow frames and the like, but also has the advantage of poor binding force of a printed film.

In the course of research and practice of the prior art, the inventors of the present application found that the poor adhesion of the printed film layer is generally due to contaminants such as dust, grease, etc. on the substrate, resulting in poor adhesion to the ink film layer. In industrial manufacture, a substrate is usually subjected to plasma treatment in advance to remove pollutants such as surface dust and the like so as to achieve the aim of cleaning. However, since the post-stage equipment has a low dust-free level, the risk of falling dust is still present on the substrate during actual printing, the final printing effect is affected, and the film layer generates defects such as protrusion, stripping and the like.

Disclosure of Invention

The embodiment of the application provides an inkjet printing device and an inkjet printing method thereof, which can treat the surface of a member to be printed in real time so as to improve the printing effect.

An embodiment of the present application provides an inkjet printing apparatus including:

the spray head module moves along the printing direction;

the bracket is connected to the spray head module; and

the plasma processing module is arranged on the support and is positioned on one side of the spray head module along the printing direction, and the plasma processing module is used for carrying out hydrophilic processing on a component to be printed.

Optionally, in some embodiments of the present application, the plasma processing module includes a first plasma processing apparatus, a second plasma processing apparatus, and a third plasma processing apparatus, where the first plasma processing apparatus, the second plasma processing apparatus, and the third plasma processing apparatus are all connected to the bracket;

the first plasma processor is used for carrying out hydrophilic treatment on the area to be printed of the component to be printed, and the second plasma processor and the third plasma processor are used for carrying out hydrophobic treatment on two sides of the area to be printed of the component to be printed.

Optionally, in some embodiments of the present application, along the printing direction, the first plasma processor, the second plasma processor, and the third plasma processor are disposed in a staggered manner.

Optionally, in some embodiments of the present application, the support includes a first connection section, a second connection section, and a third connection section, where the first connection section and the second connection section are connected to the spray head module, and two ends of the third connection section are respectively connected to one end of the first connection section away from the spray head module and one end of the third connection section away from the spray head module in a bending manner;

the first plasma processor is connected to one side, far away from the spray head module, of the second connecting section, and the second plasma processor and the third plasma processor are connected to one side, facing the spray head module, of the second connecting section.

Optionally, in some embodiments of the present application, the support further includes an adjusting structure, the second plasma processor and the third plasma processor are connected to the third connection section through the adjusting structure, and the adjusting structure is used for adjusting a distance between the second plasma processor and the third plasma processor.

Optionally, in some embodiments of the present application, the adjustment structure includes a guide rail disposed in the third connection section and extending along opposite ends of the third connection section, and the second plasma processor and the third plasma processor are slidably connected to the guide rail.

Optionally, in some embodiments of the present application, the adjustment structure further includes a drive motor connected to the rail for driving the second plasma processor and the third plasma processor relatively closer to or farther from along the rail.

Optionally, in some embodiments of the present application, the nozzle module includes a mounting base and an inkjet head, the first connection section and the second connection section are connected to the mounting base, opposite sides of the inkjet head are respectively connected to the first connection section and the second connection section, and the inkjet head is located at a side of the mounting base facing the second connection section.

Optionally, in some embodiments of the present application, the first plasma processor is a broad-format plasma processor, and the second plasma processor and the third plasma processor are point-format plasma processors.

Correspondingly, the embodiment of the application also provides an ink-jet printing method, which comprises the following steps:

step 10: providing an ink jet printing device and a member to be printed, wherein the ink jet printing device comprises a spray head module, a bracket and a plasma processing module, the bracket is connected with the spray head module, and the plasma processing module is arranged on the bracket;

step 20: the spray head module moves along the printing direction to carry out ink-jet printing on the printing area, and the spray head module drives the plasma processing module to move so that the plasma processing module carries out hydrophilic treatment on the area to be printed of the component to be printed.

The ink jet printing equipment provided by the embodiment of the application comprises a spray head module, a bracket and a plasma processing module. The spray head module moves along the printing direction, the support is connected to the spray head module, the plasma treatment module is arranged on the support and located on one side of the spray head module along the printing direction, and the plasma treatment module is used for carrying out hydrophilic treatment on a component to be printed. So plasma treatment module and shower nozzle module pass through the support and connect, so can drive the plasma treatment module simultaneously when the shower nozzle module removes along printing the direction and remove to because the plasma treatment module is in the place ahead of shower nozzle module, the integrated level is high, and after the plasma treatment module treats printing member and clean, the shower nozzle module can be simultaneously quick carry out the inkjet to this clean region after printing, and then make surface treatment technology and printing technology can seamless connection, guaranteed technological process's instantaneity and high efficiency, and improve the rete cohesion, in order to improve the printing effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of an inkjet printing apparatus provided in an embodiment of the present application;

fig. 2 is a schematic structural view of an inkjet printing apparatus according to another view angle provided in an embodiment of the present application;

fig. 3 is a schematic flow chart of an inkjet printing method according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and explanation only and is not intended to limit the present application. In this application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.

The embodiment of the application provides an inkjet printing device and an inkjet printing method thereof. The following will describe in detail. The following description of the embodiments is not intended to limit the preferred embodiments.

Referring to fig. 1, an inkjet printing apparatus 100 according to an embodiment of the present application includes a head module 10, a holder 20, and a plasma processing module 30. The spray head module 10 moves along the printing direction, the bracket 20 is connected to the spray head module 10, the plasma processing module 30 is arranged on the bracket 20 and is positioned on one side of the spray head module 10 along the printing direction, and the plasma processing module 30 is used for carrying out hydrophilic processing on the component 200 to be printed.

So plasma treatment module 30 and shower nozzle module 10 are connected through support 20, so can drive plasma treatment module 30 simultaneously when shower nozzle module 10 moves along the direction of printing and remove, and because plasma treatment module 30 is in the place ahead of shower nozzle module 10, the integrated level is high, and after plasma treatment module 30 treats printing member 200 and cleans, shower nozzle module 10 can be simultaneously quick carry out the inkjet to this region after cleaning and print, and then make surface treatment technology and printing technology can seamless connection, real-time and the high efficiency of technology process have been guaranteed, and improve the rete cohesion, in order to improve the printing effect.

It should be noted that, the bracket 20 and the showerhead module 10 and the plasma processing module 30 may be detachably connected by screws or buckles, so as to facilitate subsequent maintenance and replacement. The bracket 20 may be made of metal material to ensure the stability of the connection and the stability of the support of the bracket 20. And the member to be printed 200 is a substrate board or the like. The plasma processing module 30 uses the properties of the active components to process the surface of the sample by applying enough energy to the gas to ionize the gas into a plasma state, thereby achieving the purposes of cleaning and modifying the printing surface of the member 200 to be printed, such as reducing the water drop angle, and improving the film binding force.

Referring to fig. 1 and 2, in some embodiments, the plasma processing module 30 includes a first plasma processor 31, a second plasma processor 32, and a third plasma processor 33, and the first plasma processor 31, the second plasma processor 32, and the third plasma processor 33 are detachably connected to the bracket 20. The first plasma processor 31 is used for hydrophilic treatment of the region 201 to be printed of the member to be printed 200, and the second plasma processor 32 and the third plasma processor 33 are used for hydrophobic treatment of both sides of the region 201 to be printed of the member to be printed 200.

In order to solve the technical problem that the edge saw-tooth of the printing position is difficult to control, the plasma processing module 30 is composed of the first plasma processing instrument 31, the second plasma processing instrument 32 and the third plasma processing instrument 33, so that the first plasma processing instrument 31 can carry out hydrophilic processing on the area 201 to be printed of the component 200 to be printed, and meanwhile, the second plasma processing instrument 32 and the third plasma processing instrument 33 carry out hydrophobic processing on two sides of the area 201 to be printed on the component 200 to be printed, namely, the water drop angle is increased, so that printing ink is better limited in a required printing area, the edge straightness of ink spreading is improved, and different ink printing requirements and different substrate printing process requirements are more easily met. It should be noted that the first plasma processor 31, the second plasma processor 32 and the third plasma processor 33 have the same structure, so as to facilitate installation, and thus, by using different gas sources and different energies, the three may have hydrophilic or hydrophobic effects, respectively. In addition, the first plasma processor 31, the second plasma processor 32 and the third plasma processor 33 may be connected in advance to form an integral module, and then the integral module is connected to the bracket 20, so as to facilitate the integral installation and detachment. Of course, the first plasma processor 31, the second plasma processor 32 and the third plasma processor 33 may be detachably connected to the stand 20 separately, so as to facilitate the subsequent maintenance and replacement separately, which may be selected by those skilled in the art according to circumstances.

Further, the first plasma processor 31 is disposed offset from the second plasma processor 32 and the third plasma processor 33 in the printing direction. Wherein, in order to reduce the hydrophilic effect and the hydrophobic effect of the first plasma processor 31 and the second plasma processor 32 and the third plasma processor 33, which interfere with each other, are arranged in a staggered manner along the printing direction so that the first plasma processor 31 has a gap with the second plasma processor 32 and the third plasma processor 33, respectively, so that the hydrophilic effect of the first plasma processor 31 to be printed and the hydrophobic effect of the second plasma processor 32 and the third plasma processor 33 are ensured.

Further, the bracket 20 includes a first connecting section 21, a second connecting section 22 and a third connecting section 23, wherein the first connecting section 21 and the second connecting section 22 are connected to the spray head module 10, and two ends of the third connecting section 23 are respectively connected to one end of the first connecting section 21 far away from the spray head module 10 and one end of the third connecting section 23 far away from the spray head module 10 in a bending manner; the first plasma processor 31 is connected to a side of the second connection section 22 remote from the showerhead module 10, and the second plasma processor 32 and the third plasma processor 33 are connected to a side of the second connection section 22 facing the showerhead module 10.

The first connecting section 21, the second connecting section 22 and the third connecting section 23 are integrally formed, so as to further ensure structural stability of the bracket 20. And the first plasma processor 31, the second plasma processor 32 and the third plasma processor 33 are respectively arranged on two opposite sides of the second connecting section 22, so that the first plasma processor 31, the second plasma processor 32 and the third plasma processor 33 are respectively arranged, and the installation efficiency is improved. And the second plasma processor 32 and the third plasma processor 33 are positioned on the same straight line to improve the uniformity of the hydrophobic treatment on both sides of the region 201 to be printed, so as to further improve the printing effect.

Still further, the stand 20 further comprises an adjusting structure 24, the second plasma processor 32 and the third plasma processor 33 are connected to the third connecting section 23 through the adjusting structure 24, and the adjusting structure 24 is used for adjusting the distance between the second plasma processor 32 and the third plasma processor 33. Wherein the adjustment structure 24 is arranged such that the spacing between the second plasma processor 32 and the third plasma processor 33 is adjustable to correspond to different printing widths. It should be noted that, the adjusting structure 24 may be provided with a plurality of yielding holes arranged at intervals on the bracket 20, and then the second plasma processing apparatus 32 and the third plasma processing apparatus 33 are respectively fixed to different yielding holes by fixing screws to adjust the distance between the two, or may be directly moved to a proper position by the second plasma processing apparatus 32 and the third plasma processing apparatus 33, and then fixed by a limiting manner such as a buckle.

Further, the adjustment structure 24 includes a guide rail 241, and the guide rail 241 is disposed on the third connecting section 23 and extends along opposite ends of the third connecting section 23, and the second plasma processor 32 and the third plasma processor 33 are slidably connected to the guide rail 241. The second plasma processor 32 and the third plasma processor 33 are directionally adjusted through the guide rail 241, and the moving process is smoother, so that the distance between the second plasma processor 32 and the third plasma processor 33 is adjusted more conveniently, and the usability of the inkjet printing device 100 is improved.

Still further, the adjustment structure 24 further includes a drive motor 242, the drive motor 242 being coupled to the rail 241 for driving the second plasma processor 32 and the third plasma processor 33 relatively closer to or farther from along the rail 241. The driving motor 242 may be a double-motor linear motor, so that the movement of the second plasma processor 32 and the third plasma processor 33 can be controlled simultaneously, and the movement of the second plasma processor 32 and the third plasma processor 33 can be more accurate, thereby improving the intelligence.

In some embodiments, referring to fig. 1 and 2, the spray head module 10 includes a mounting base 11 and an inkjet head 12, a first connection section 21 and a second connection section 22 are connected to the mounting base 11, opposite sides of the inkjet head 12 are respectively connected to the first connection section 21 and the second connection section 22, and the inkjet head 12 is located on a side of the mounting base 11 facing the second connection section 22. The mounting base 11 may be connected to other components of the inkjet printing apparatus 100, and the mounting base 11 is respectively connected to the first connecting section 21 and the second connecting section 22, so that the supporting force of the bracket 20 is ensured by the mounting base 11, and further, the stability of the plasma processing module 30 during moving is ensured. The two opposite sides of the inkjet head 12 are respectively fixed on the first connecting section 21 and the second connecting section 22, so that the second connecting section 22 and the third connecting section 23 can limit and fix the inkjet head 12 at the same time, that is, the bracket 20 not only plays a role in connecting the shower head module 10 and the plasma processing module 30, but also plays a role in fixing the inkjet head 12 of the shower head module 10. Of course, the ink-jet head 12 can also be connected to the mounting seat 11 at the same time, so as to ensure the stability of the whole structure of the ink-jet head 12 during movement, and further ensure the printing effect.

Alternatively, the first plasma processor 31 is a broad-format plasma processor, and the second plasma processor 32 and the third plasma processor 33 are dot-type plasma processors. Since the first plasma processor 31 is selected for the width of the area 201 to be printed of the member 200 to be printed, the width of the frame printing is typically about 10mm, and the width can be covered by using the broad-format plasma processor, so that the area 201 to be printed can be covered by a single printing. And since the boundary of the hydrophilic and hydrophobic areas needs to be processed more precisely, the second plasma processor 32 and the third plasma processor 33 are processed using a broad-width very small dot-type plasma processor.

Referring to fig. 3, an embodiment of the present application provides an inkjet printing method, including:

So plasma processing module and shower nozzle module are connected through the support, so can drive the plasma processing module simultaneously when the shower nozzle module moves along the printing direction and remove to because the plasma processing module is in the place ahead of shower nozzle module, the integrated level is high. And the plasma processing module reduces the water drop angle of the area to be printed of the member to be printed, so that the hydrophilicity of the area to be printed of the member to be printed can be improved. And then the spray head module can simultaneously and rapidly carry out ink-jet printing on the cleaned area, so that the surface treatment process and the printing process can be connected in a seamless manner, the instantaneity and the high efficiency of the process are ensured, and the binding force of the film layer is improved, so that the printing effect is improved.

The inkjet printing method of the present embodiment is explained in detail below.

wherein, this support can be connected through detachable mode such as screw or buckle with shower nozzle module and plasma processing module, so in order to follow-up maintenance and change. The support can be made of metal materials so as to ensure the stability of support connection and the stability of support. And the member to be printed is a substrate base plate or the like. The plasma processing module is used for processing the surface of the sample by applying enough energy to the gas to enable the gas to be ionized into a plasma state and utilizing the properties of the active components, so that the purposes of cleaning and modifying the printing surface of a component to be printed are realized, such as reducing the water drop angle, and the binding force of a film layer is improved.

The plasma processing module comprises a first plasma processing instrument, a second plasma processing instrument and a third plasma processing instrument, wherein the first plasma processing instrument, the second plasma processing instrument and the third plasma processing instrument are all detachably connected to the bracket. The first plasma processor is used for carrying out hydrophilic treatment on the area to be printed of the component to be printed, and the second plasma processor and the third plasma processor are used for carrying out hydrophobic treatment on two sides of the area to be printed of the component to be printed.

Further, in order to solve the technical problem that the edge saw teeth at the printing position are difficult to control, the plasma processing module is composed of a first plasma processing instrument, a second plasma processing instrument and a third plasma processing instrument, and therefore the first plasma processing instrument can carry out hydrophilic processing on a region to be printed of a component to be printed, namely, the water drop angle is reduced. Meanwhile, the second plasma processor and the third plasma processor perform hydrophobic treatment on two sides of a region to be printed on a member to be printed, namely, increase the water drop angle, so that printing ink is better limited to a required printing region, the edge straightness of ink spreading is improved, and different ink printing requirements and different substrate printing process requirements are more easily met. It should be noted that the first plasma processor, the second plasma processor and the third plasma processor have the same structure, so as to facilitate installation, and thus, the three plasma processors can have hydrophilic or hydrophobic effects respectively by adopting different air sources and different energies. In addition, the first plasma processor, the second plasma processor and the third plasma processor can be connected in advance to form an integral module, and then the integral module is connected to the bracket, so that the integral installation and the integral disassembly are convenient. Of course, the first plasma processor, the second plasma processor and the third plasma processor may be separately and detachably connected to the bracket, so as to facilitate the subsequent maintenance and replacement, which may be specifically selected by those skilled in the art according to the specific situation.

The foregoing has described in detail an inkjet printing apparatus and an inkjet printing method thereof according to embodiments of the present application, and specific examples have been applied herein to illustrate principles and embodiments of the present application, where the foregoing examples are provided to assist in understanding the methods of the present application and their core ideas; meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.

Claims

1. An inkjet printing apparatus, characterized in that the inkjet printing apparatus comprises:

the spray head module moves along the printing direction;

the bracket is connected to the spray head module; and

the plasma treatment module is arranged on the bracket and positioned at one side of the spray head module along the printing direction, and is used for carrying out hydrophilic treatment and hydrophobic treatment on a component to be printed;

the plasma processing module comprises a first plasma processing instrument, a second plasma processing instrument and a third plasma processing instrument, wherein the first plasma processing instrument, the second plasma processing instrument and the third plasma processing instrument are all connected with the bracket; the first plasma processor is used for carrying out hydrophilic treatment on the area to be printed of the component to be printed, and the second plasma processor and the third plasma processor are used for carrying out hydrophobic treatment on two sides of the area to be printed of the component to be printed;

the support also comprises an adjusting structure, the second plasma processor and the third plasma processor are connected to the support through the adjusting structure, and the adjusting structure is used for adjusting the distance between the second plasma processor and the third plasma processor.

2. The inkjet printing apparatus of claim 1 wherein the first plasma processor is offset from the second and third plasma processors along the printing direction.

3. The inkjet printing apparatus of claim 2 wherein the bracket comprises a first connection section, a second connection section and a third connection section, the first connection section and the second connection section are connected to the nozzle module, two ends of the third connection section are respectively connected to one end of the first connection section away from the nozzle module and one end of the third connection section away from the nozzle module in a bending manner;

4. An inkjet printing apparatus according to claim 3 wherein the adjustment mechanism includes a guide rail disposed at the third connecting section and extending along opposite ends of the third connecting section, the second plasma processor and the third plasma processor being slidably connected to the guide rail.

5. The inkjet printing apparatus of claim 4 wherein the adjustment mechanism further comprises a drive motor connected to the rail for driving the second plasma processor and the third plasma processor relatively closer or farther along the rail.

6. The inkjet printing apparatus of claim 3 wherein the nozzle module comprises a mounting base and an inkjet head, the first connection section and the second connection section are connected to the mounting base, opposite sides of the inkjet head are connected to the first connection section and the second connection section, respectively, and the inkjet head is located on a side of the mounting base facing the second connection section.

7. The inkjet printing apparatus according to any one of claims 2 to 6, wherein the first plasma processor is a broad-format plasma processor, and the second plasma processor and the third plasma processor are dot-format plasma processors.

8. An inkjet printing method, comprising:

step 20: the spray head module moves along the printing direction to perform ink-jet printing on a printing area, and the spray head module drives the plasma processing module to move so that the plasma processing module performs hydrophilic treatment and hydrophobic treatment on the area to be printed of the component to be printed;