CN115972769A - Anti-crosstalk arrayed fluid jet printing device and method based on plasma - Google Patents
Anti-crosstalk arrayed fluid jet printing device and method based on plasma Download PDFInfo
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- CN115972769A CN115972769A CN202310169028.7A CN202310169028A CN115972769A CN 115972769 A CN115972769 A CN 115972769A CN 202310169028 A CN202310169028 A CN 202310169028A CN 115972769 A CN115972769 A CN 115972769A
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- 238000007639 printing Methods 0.000 title claims abstract description 99
- 239000012530 fluid Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 60
- 230000005684 electric field Effects 0.000 claims abstract description 26
- 238000005507 spraying Methods 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 31
- 239000003570 air Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 230000005499 meniscus Effects 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 239000001307 helium Substances 0.000 claims description 4
- 229910052734 helium Inorganic materials 0.000 claims description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 238000007641 inkjet printing Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000003491 array Methods 0.000 abstract description 3
- 210000002381 plasma Anatomy 0.000 abstract 8
- 238000005516 engineering process Methods 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000004806 packaging method and process Methods 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/06—Ink jet characterised by the jet generation process generating single droplets or particles on demand by electric or magnetic field
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2002/14491—Electrical connection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a plasma-based anti-crosstalk arrayed fluid jet printing device and method, and belongs to the technical field of ink jet printing. The jet printing device comprises an arrayed jet printing head and an arrayed plasma module. The array jet printing head consists of a plurality of ink supply nozzles to form a jet head group, and the upper ends of the ink supply nozzles are connected with an ink supply unit; the array plasma module generates plasma and forms a plasma gaseous ring electrode; the substrate to be printed is grounded, an electric field is formed between the substrate and the plasma gas annular electrode, the electric field guides the ink supply nozzle to perform Taylor cone spraying, and high-resolution ink is deposited on the substrate. The gaseous ring electrodes formed by the plasmas can be respectively controlled by the discharge gas or voltage of the plasmas, crosstalk cannot occur between the arrayed gaseous ring electrodes, and the electrospray nozzle can be independently controlled; can provide new technical support in the aspects of high-precision, high-resolution and high-efficiency manufacturing of large-area display panel pixel arrays, sensor arrays and the like.
Description
Technical Field
The invention belongs to the technical field of ink-jet printing, and particularly relates to a plasma-based anti-crosstalk arrayed fluid jet printing device and method.
Background
The ink-jet printing technology, as an additive manufacturing technology, has the advantages of non-contact, large area, no need of a mask, rapid manufacturing, low cost of finished products, capability of directly manufacturing patterns on a plane/curved substrate and the like, is a main manufacturing technology of printing electronics replacing photoetching/vacuum long-flow processes (development, etching, exposure, cleaning and the like), and is widely applied to the fields of display, sensing, chips, energy, aerospace and the like. The traditional ink-jet printing technology has the defects of low resolution, easy blockage of a nozzle, limited jet printing materials and droplet size and the like. The electrofluid jet printing technology is a novel ink-jet printing technology, taylor cone jet is generated at an ink nozzle in a pulling mode through structured electric field driving, micro-nano ink liquid drop/jet flow jet printing can be realized, ink materials with the viscosity range of 1-10000cp are compatible, on the basis of continuing the advantages of the traditional ink-jet printing technology, the electrofluid jet printing technology also has a plurality of unique advantages of high resolution, multiple printing modes, wider material application range and the like, and has outstanding potential in the aspect of large-area micro-nano structure high-precision manufacturing.
For electrofluid jet printing, the arraying of the ink jet nozzles can effectively improve the electrofluid jet printing efficiency and realize the high-resolution and high-efficiency preparation of large-area printed electronic devices, and has very important significance. At present, the research on array electric fluid jet printing is not deep enough, and more problems exist. For example: and (1) mutual crosstalk of electric fields of arrayed fluid jet printing. The array jet printing head needs to apply high-voltage electric fields among different nozzles, so that the phenomenon of serious electric field crosstalk exists, the jet flow at each nozzle has the phenomena of non-uniformity, inclination and the like, and the array jet printing head cannot be applied to high-precision printing occasions; and (2) the independent controllability of the arrayed fluid jet printing is poor. According to different ink-jet properties, the working voltage of electrofluid jet printing can reach several kilovolts, and the high-frequency and multi-path independent control requirements are difficult to realize; (3) The design and manufacture of high-precision and high-density nozzle arrays are complex, the arrayed electrofluid nozzle needs to prepare nozzle structures with large quantity and high depth-to-width ratio, the packaging volume and the integration degree of internal elements need to be considered, and the preparation process is difficult. Therefore, a new array type fluid jet printing device and method are needed to be provided, so as to solve the problem that the array type fluid jet printing nozzles are connected with high voltage electrodes and influence printing due to mutual crosstalk in linkage control or independent control, and improve the consistency and controllability of printing.
Disclosure of Invention
In view of the deficiencies and needs in the art, the present invention provides a plasma-based anti-crosstalk arrayed fluid jet printing apparatus and method. The array fluid jet printing device is provided with the array jet printing head and the array plasma gaseous ring electrode, the plasma gaseous ring electrode can be used for guiding the ink jet nozzle to jet taylor cones, ink is accurately deposited on the substrate, the ring electrode formed by the plasma can be respectively controlled by discharge gas or voltage of the plasma, crosstalk among the array electrodes cannot occur, the array fluid jet printing head improves the printing efficiency of electrohydrodynamic jet printing, and therefore electrohydrodynamic jet printing with high precision, high resolution and high efficiency can be achieved on the surfaces of a large-area display panel, a sensor array and the like.
To achieve the above object, in a first aspect, the present invention provides a plasma-based anti-crosstalk arrayed fluid ejection device, comprising: the device comprises an arrayed jet printing head and an arrayed plasma module;
the array jet printing head comprises a plurality of ink supply nozzles, the upper end of each ink supply nozzle is connected with an ink supply unit, and ink flows out of the ink supply unit to fill the ink supply nozzles;
the array plasma module comprises an air supply unit, a high-voltage power supply and a plurality of plasma units, wherein each plasma unit comprises a plasma generating device and a plasma conveying hose;
the gas supply unit is connected with each plasma generating device through a flowmeter so as to independently control the delivery of the working gas in each plasma unit; the high-voltage power supply is connected with electrode needles in the plasma generating devices through an electric switch so as to independently control each plasma generating device to generate plasma;
one end of the plasma conveying hose is connected with the plasma generating device, and the other end of the plasma conveying hose surrounds the lower end of the ink supply nozzle for a circle to form a plasma gaseous annular electrode; the plasma gaseous ring electrode is used for forming an electric field with a grounded substrate to be printed, so that when the electric field intensity of the surface of the ink liquid meniscus breaks through the Taylor limit, the ink liquid is sprayed by a Taylor cone and is deposited at a specified position on the substrate to be printed.
Further, when the substrate to be printed is a conductive substrate, grounding the conductive substrate; when the substrate to be printed is an insulating thin substrate, a conductive backing plate needs to be placed below the insulating thin substrate, and the conductive backing plate is grounded.
Further, the working gas is argon, helium, nitrogen or air.
Further, the high-voltage power supply is a pulse power supply or a radio frequency power supply.
In order to achieve the above object, in a second aspect, the present invention provides a plasma-based anti-crosstalk arrayed fluid jet printing method, where the jet printing method is performed by using the plasma-based anti-crosstalk arrayed fluid jet printing apparatus according to the first aspect.
Further, the jet printing method comprises the following steps:
s1, vertically placing an arrayed spray printing head above a substrate to be printed, winding each plasma conveying hose at the lower end of the corresponding ink supply nozzle, and conveying ink to each ink supply nozzle through an ink supply unit, wherein the ink is filled in the ink supply nozzle and reaches the outlet of the lower end of the ink supply nozzle;
s2, supplying working gas to the plasma unit needing to work, switching on a corresponding electric switch, and enabling a high-voltage power supply to transmit voltage to an electrode needle of a plasma generating device, wherein the working gas discharges at the electrode needle to generate plasma;
and S3, the generated plasma flows along the plasma conveying hose under the blowing of the air flow, a plasma gaseous ring electrode is formed at the lower end of the nozzle in a circle, so that an electric field is formed between the plasma gaseous ring electrode and the grounded substrate to be printed, and when the electric field intensity of the ink liquid meniscus surface breaks through the Taylor limit, the ink liquid is subjected to Taylor cone spraying and is deposited at the designated position on the substrate to be printed, so that the arrayed fluid jet printing is completed.
Further, when the flow meter controls the working gas to stop supplying, or the electric switch controls the electrode needle to be disconnected from the high-voltage power supply, the plasma generating device stops generating plasma, so that the ink supply nozzles stop ejecting ink, and printing stops, thereby realizing independent control of each ink supply nozzle.
Generally, by the above technical solution conceived by the present invention, the following beneficial effects can be obtained:
(1) According to the invention, the plasma and the ink-jet printing are combined, and an electric field is formed between the plasma gaseous annular electrode area and the substrate to be printed by using positive charges carried by the plasma, so that the ink supply nozzle is guided to generate electrohydrodynamic force to eject ink and accurately deposit the ink at the designated position of the substrate to be printed, the problem of low printing precision of the ink-jet printing on the substrate can be solved, the precision, resolution and convenience of the ink-jet printing are effectively improved, typical printing modes such as continuous direct writing, on-demand jet printing and near-field spinning can be well compatible, and the high-precision and high-resolution ink-jet printing is realized;
(2) The ink jet nozzle is arrayed, can be used for high-resolution jet printing on the surface of a large-area structural member, and has very important significance for improving the printing efficiency of electrohydrodynamic jet printing and realizing high-resolution and high-efficiency preparation of printed electronic devices. The electric switch can control the connection and disconnection of the high-voltage power supply and the electrode needle, the flow meter can control the working gas to stop supplying, the ink supply nozzles can stop printing in both modes, and the independent control of each ink jet nozzle in the array fluid jet printing nozzle group can be realized.
(3) The array jet printing head of the invention takes the plasma with positive charge as an electrode, namely, the plasma jet develops along the plasma conveying hose under the blowing of air flow, the plasma conveying hose surrounds the lower end of the ink supply nozzle for a circle to form the plasma gaseous ring electrode of the ink jet head, the electric fields generated by the plasma gaseous ring electrodes cannot influence each other, the problem that the array jet printing head in the traditional electrofluid jet printing is connected with high-voltage electrodes to influence the printing in the independent control or the linkage simultaneous control is solved, and the consistency and the controllability of the printing are improved.
Drawings
Fig. 1 is a schematic structural view of a plasma-based anti-crosstalk arrayed fluid jet printing apparatus with a conductive substrate as a substrate to be printed, constructed in accordance with a preferred embodiment of the present invention;
fig. 2 is a schematic structural view of a plasma-based anti-crosstalk arrayed fluid ejection device constructed according to a preferred embodiment of the present invention, having an insulating substrate as a substrate to be printed;
fig. 3 is a diagram of the results of a print from an apparatus constructed in accordance with a preferred embodiment of the present invention.
The same reference numbers will be used throughout the drawings to refer to the same elements or structures, wherein:
1-a high voltage power supply; 2-an air supply unit; 3, a flow meter; 4-electrode needle; 5-plasma; 6-plasma gaseous ring electrode; 7-ink deposition; 8-an electrical switch; 9-a plasma generating device; 10-a plasma delivery hose; 11-an ink supply nozzle; 12-ink liquid; 13-a conductive substrate; 14-an insulating substrate; 15-conductive pad.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the present application, the terms "first," "second," and the like (if any) in the description and the drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Referring to fig. 1 and 2, the present invention provides a plasma-based anti-crosstalk arrayed fluid jet printing apparatus, including: array spouts printer-head and array plasma module, wherein:
the arrayed jet printing head is a jet head group consisting of a plurality of ink supply nozzles 11, when the arrayed jet printing head works, the upper ends of the ink supply nozzles 11 are connected with an ink supply unit, ink 12 flows out of the ink supply unit, and the ink 12 reaches the lower end outlet of the ink supply nozzles 11 along a channel in the ink supply nozzles 11.
The array plasma module comprises an air supply unit 2, a high-voltage power supply 1 and a plurality of plasma units, wherein each plasma unit comprises a plasma generating device 9 and a plasma conveying hose 10; the gas supply unit 2 can independently control the delivery of working gas in each plasma unit through a flow meter 3, and the working gas can be argon, helium, nitrogen or air; the high-voltage power supply 1 can be a pulse power supply or a radio frequency power supply, the electrode needles 4 are arranged in the plasma generating device 9, and the electric switch 8 can uniformly control the connection and disconnection between the electrode needles 4 and the high-voltage power supply 1. Work as when the gas supply unit 2 is to the plasma unit air feed that needs work, working gas arrives along the trachea plasma generating device 9 opens high voltage power supply 1, through electric switch 8's control makes voltage arrive electrode needle 4 department, working gas is in electrode needle 4 department discharges and produces plasma 5, plasma 5 flows along plasma conveying hose 10 under the blowing of air current, plasma conveying hose 10 centers on supply nozzle 11 lower extreme a week in order to form plasma gaseous ring electrode 6.
The substrate to be printed may be a conductive substrate 13 (see fig. 1) or an insulating substrate 14 (see fig. 2). When the substrate to be printed is the conductive substrate 13, only the conductive substrate 13 needs to be grounded; when the substrate to be printed is the insulating substrate 14, it is necessary to pad a conductive pad 15 under the insulating substrate 14 and ground the conductive pad 15, and the thickness of the insulating substrate 14 cannot be too large.
In operation, a strong electric field is formed between the substrate to be printed and the plasma gaseous ring electrode 6, when the electric field intensity of the meniscus surface of the ink 12 breaks through the taylor limit, taylor cone ejection occurs on the ink 12, and the ink 12 is deposited on a designated position on the substrate to be printed to form an ink deposit 7, so that printing is completed.
Further, the electrical switch 8 controls the electrode needle 4 to be disconnected from the high-voltage power supply 1, the working gas stops discharging, or the flow meter 8 controls the working gas to stop supplying, both of which stop the generation of the plasma 5, so that the ink 12 in the ink supply nozzle 11 stops being ejected, and printing stops, thereby realizing independent control of each ink supply nozzle 11 in the arrayed fluid jet printing nozzle group.
Furthermore, the plasma 5 is adopted by the arrayed jet printing heads as the gaseous electrode, so that the problem that the arrayed jet printing heads are connected with the high-voltage electrode in the traditional electrofluid jet printing and influence printing by mutual crosstalk in independent control or linkage simultaneous control is solved. When the working gas is introduced into the plasma generating device 9 of the two adjacent arrayed units, wherein the electrode needle 4 is connected with the high-voltage power supply 1, the plasma 5 is generated to form a plasma gaseous ring electrode 6, so that an electric field is generated to guide the ink supply nozzle 11 on the left to generate taylor cone jet for printing; and the working gas is not introduced into the plasma generating device 9 of the right arrayed unit or the electrode needle 4 is not connected with the high-voltage power supply 1, and no plasma 5 is in the plasma conveying hose 10, so that a plasma gaseous ring electrode 6 cannot be formed, and printing is not performed. The electric field generated by the plasma 5 in the plasma gas ring electrode 6 of the left array unit does not influence the electrode area of the right array unit, namely, the right array unit still does not generate the electric field, and the printing state is kept stopped. In the array electric fluid jet printing device, the start and stop of the working state of each array unit and the distance between the ink jet nozzles do not influence the working states of other array units, so that the controllability of the array electric fluid jet printing is improved.
According to another aspect of the present invention, as shown in fig. 1 and 2, there is provided a plasma-based anti-crosstalk arrayed fluid ejection method, including the steps of:
s1, vertically placing an arrayed jet printing head consisting of a plurality of ink supply nozzles 11 above a substrate to be printed, wherein the substrate to be printed can be a conductive substrate 13 shown in figure 1 or an insulating substrate 14 shown in figure 2. When the substrate to be printed adopts the conductive substrate 13, the conductive substrate 13 should be grounded; when the substrate to be printed adopts the insulating substrate 14, a conductive pad 15 connected to ground should be placed below. Winding a plasma conveying hose 10 at the lower end of the ink supply nozzle 11, and conveying ink 12 to each ink supply nozzle 11 through an ink supply unit to the outlet of the ink supply nozzle 11;
and S2, the gas supply unit 2 supplies working gas to the plasma generation device 9 to be used through the flow meter 3, wherein the working gas can be argon, helium, nitrogen or air. An electrode needle 4 is arranged in the plasma generating device 9, the electrode needle 4 is controlled by an electric switch 8 to be connected with a high-voltage power supply 1, and the high-voltage power supply 1 can be a pulse power supply or a radio frequency power supply. Starting the high-voltage power supply 1, enabling the voltage to reach the electrode needle 4, and enabling the working gas to discharge at the electrode needle 4 to generate plasma 5;
s3, the plasma 5 flows along the plasma conveying hose 10 under the blowing of air flow, the plasma conveying hose 10 surrounds the lower end of the ink supply nozzle 11 for a circle to form the plasma gaseous ring electrode 10, so that an electric field is formed between the plasma gaseous ring electrode and the grounded substrate to be printed, the electric field induces the ink supply nozzle 11 to generate Taylor cone jet flow, and the jet and deposition of the ink 12 are driven. When the electric field intensity of the meniscus surface of the ink 12 breaks through the Taylor limit, the ink 12 is subjected to Taylor cone ejection and is deposited to a designated position on the substrate to be printed to form an ink deposit 7, so that the arrayed fluid jet printing is completed.
Further, the electrical switch 8 controls the electrode needle 4 to be disconnected from the high-voltage power supply 1, the working gas stops discharging, or the flow meter 8 controls the working gas to stop supplying, both of which stop the generation of the plasma 5, so that the ink 12 in the ink supply nozzle 11 stops being ejected, and printing stops, thereby realizing independent control of each ink supply nozzle 11 in the arrayed fluid jet printing nozzle group.
Fig. 3 is a diagram of arrayed printing results for a device constructed in accordance with a preferred embodiment of the present invention.
The plasma and the ink-jet printing are combined, and the electric field is formed by using the positive charges carried by the plasma, so that the ink-jet nozzle is guided to generate electrohydrodynamic force to jet and print ink and accurately deposit the ink on a specific position of the substrate to be printed, and the precision, the resolution and the convenience of the ink-jet printing are effectively improved. The arrayed design can be used for high-resolution jet printing on the surface of a large-area structural member, and has very important significance for improving the printing efficiency of electrohydrodynamic jet printing and realizing high-resolution and high-efficiency preparation of printed electronic devices. And the independent control of each ink jet head in the arrayed fluid jet printing head group can be realized through an electric switch and a flow meter. The plasma with positive charges is used as the electrode, electric fields generated by the plasma gaseous ring electrodes cannot influence each other, the problem that the printing is influenced by mutual crosstalk when the arrayed jet printing heads are connected with the high-voltage electrodes and are independently controlled or linked and simultaneously controlled in the traditional electrofluid jet printing is solved, and the consistency and controllability of the printing are improved.
It will be understood by those skilled in the art that the foregoing is only an exemplary embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, since various modifications, substitutions and improvements within the spirit and scope of the invention are possible and within the scope of the appended claims.
Claims (7)
1. A plasma-based anti-crosstalk arrayed fluid jet printing device, comprising: the device comprises an arrayed jet printing head and an arrayed plasma module;
the array jet printing head comprises a plurality of ink supply nozzles, the upper end of each ink supply nozzle is connected with an ink supply unit, and ink flows out of the ink supply unit to fill the ink supply nozzles;
the array plasma module comprises an air supply unit, a high-voltage power supply and a plurality of plasma units, wherein each plasma unit comprises a plasma generating device and a plasma conveying hose;
the gas supply unit is connected with each plasma generating device through a flowmeter so as to independently control the delivery of the working gas in each plasma unit; the high-voltage power supply is connected with electrode needles in the plasma generating devices through an electric switch so as to independently control each plasma generating device to generate plasma;
one end of the plasma conveying hose is connected with the plasma generating device, and the other end of the plasma conveying hose surrounds the lower end of the ink supply nozzle for a circle to form a plasma gaseous annular electrode; the plasma gaseous ring electrode is used for forming an electric field with a grounded substrate to be printed, so that when the electric field intensity of the surface of the ink liquid meniscus breaks through the Taylor limit, the ink liquid is sprayed by a Taylor cone and is deposited at a specified position on the substrate to be printed.
2. The plasma-based anti-crosstalk arrayed fluid jet printing device according to claim 1, wherein when the substrate to be printed is a conductive substrate, the conductive substrate is grounded; when the substrate to be printed is an insulating thin substrate, a conductive backing plate needs to be placed below the insulating thin substrate, and the conductive backing plate is grounded.
3. The plasma-based anti-crosstalk arrayed electrical fluid jet printing apparatus of claim 1, wherein the working gas is argon, helium, nitrogen, or air.
4. The plasma-based anti-crosstalk arrayed fluid jet printing apparatus according to claim 1, wherein the high voltage power supply is a pulsed power supply or a radio frequency power supply.
5. A plasma-based anti-crosstalk arrayed fluid jet printing method is characterized in that the jet printing method is used for jet printing by the plasma-based anti-crosstalk arrayed fluid jet printing device according to any one of claims 1 to 4.
6. The plasma-based anti-crosstalk arrayed electrical fluid jet printing method of claim 5, comprising the steps of:
s1, vertically placing an arrayed spray printing head above a substrate to be printed, winding each plasma conveying hose at the lower end of the corresponding ink supply nozzle, and conveying ink to each ink supply nozzle through an ink supply unit, wherein the ink is filled in the ink supply nozzle and reaches the outlet of the lower end of the ink supply nozzle;
s2, supplying working gas to the plasma unit needing to work, switching on a corresponding electric switch, and enabling a high-voltage power supply to transmit voltage to an electrode needle of a plasma generating device, wherein the working gas discharges at the electrode needle to generate plasma;
and S3, the generated plasma flows along the plasma conveying hose under the blowing of the air flow, a plasma gaseous ring electrode is formed at the lower end of the nozzle in a circle, so that an electric field is formed between the plasma gaseous ring electrode and the grounded substrate to be printed, and when the electric field intensity of the ink liquid meniscus surface breaks through the Taylor limit, the ink liquid is subjected to Taylor cone spraying and is deposited at the designated position on the substrate to be printed, so that the arrayed fluid jet printing is completed.
7. The plasma-based anti-crosstalk arrayed fluid jet printing method according to claim 6, wherein when the flow meter controls the working gas to stop supplying or the electrical switch controls the electrode needle to be disconnected from the high-voltage power supply, the plasma generating device stops generating plasma, so that the ink supply nozzles stop ejecting ink, and printing stops, thereby realizing independent control of each ink supply nozzle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310169028.7A CN115972769A (en) | 2023-02-27 | 2023-02-27 | Anti-crosstalk arrayed fluid jet printing device and method based on plasma |
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| CN202310169028.7A CN115972769A (en) | 2023-02-27 | 2023-02-27 | Anti-crosstalk arrayed fluid jet printing device and method based on plasma |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116406095A (en) * | 2023-04-28 | 2023-07-07 | 珠海东辉半导体装备有限公司 | Metal circuit processing equipment and processing method thereof |
| CN117283991A (en) * | 2023-10-30 | 2023-12-26 | 武汉国创科光电装备有限公司 | Electrofluidic array spray head for printing display device and spray printing equipment |
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2023
- 2023-02-27 CN CN202310169028.7A patent/CN115972769A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116406095A (en) * | 2023-04-28 | 2023-07-07 | 珠海东辉半导体装备有限公司 | Metal circuit processing equipment and processing method thereof |
| CN116406095B (en) * | 2023-04-28 | 2024-04-26 | 珠海东辉半导体装备有限公司 | Metal circuit processing equipment and processing method thereof |
| CN117283991A (en) * | 2023-10-30 | 2023-12-26 | 武汉国创科光电装备有限公司 | Electrofluidic array spray head for printing display device and spray printing equipment |
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