JP7442871B2 - 特殊流体のエアロゾル印刷 - Google Patents
特殊流体のエアロゾル印刷 Download PDFInfo
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Description
本開示は、概して印刷に関し、特に特殊印刷流体の印刷に適用可能である。
印刷は、主に情報提供目的のために読取可能なテキストやグラフィックイメージを生産するための技術から、将来性のある有用な製造プロセスへと発展している。特に、具体的に特定された場所のみにおいて印刷媒体上へ機能材料を堆積する能力は、従前の顔料または染料以外の材料を堆積するのに適合されるとき、廃棄物がゼロで比較的速い付加製造をもたらし得る。しかし、印刷媒体との視覚コントラスト以外の有用な特性を有する材料の堆積の難しさは、製造プロセスとしての印刷を制限し続ける。これは、部分的には、適用可能な印刷技術が、一般に、液系材料を印刷媒体へまたは印刷媒体に向かって供給する一方で、製造された製品が典型的には固体材料から形成されるためである。いくつかの固体材料は、その後に蒸発する、反応する、またはバインダとして作用する液体キャリア材料を介して微粒子形態で印刷され得るが、既知の印刷法に対応するために、固体含有量および粒径について制限が存在する。
印刷機の実施形態は、連続的な静電場の存在下で印刷ノズルから印刷流体を抽出する抽出ガスの噴出を提供するように構成され、静電場は抽出された印刷流体を印刷基板に向かって加速させるように配置される。
いくつかの実施形態において、ノズルの先端と印刷基板との間の距離は、ガス放出ポートと印刷基板との間の距離よりも小さい。
いくつかの実施形態において、印刷機は、ノズルと印刷基板との間における抽出された印刷流体の周りに集束ガスの覆いを提供するように構成される、追加のガス放出ポートを含む。
高粘度液体、大きな固体粒子を含む流体、および機能インクなどの特殊流体を、起伏のある表面を含む表面上へまたは表面にわたって制御可能に堆積することが可能なエアロゾル印刷システムならびに方法が、以下に記載される。従来型のエアロゾル印刷機は、まず印刷流体を霧化し、次いで霧化された流体を空気と混合し、結果として生じたエアロゾルを圧力下でノズルを通して放出することによって動作する。しかしながら、この技術は、約500センチポイズ未満の粘度および約1ミクロン以下の最大粒径を有する印刷流体にしか対応可能でない。以下でさらに議論されるように、システムには、エアロゾルを集束させるのを助けるまたは電気流体力学印刷に適応するために、高電圧電極が備えられ得る。
Claims (14)
- 電場の存在下で印刷ノズルから印刷流体を抽出する抽出ガスの流れを提供するように構成された印刷機であって、
前記印刷機は、抽出ガスノズルをさらに備え、前記抽出ガスノズルは、前記印刷ノズルの外面に沿って抽出ガスの流れを放出するように構成され、前記印刷ノズルの先端は、前記抽出ガスノズルと印刷基板との間に位置し、放出された抽出ガスは、前記印刷ノズルの前記外面に沿って流れ続け、前記印刷ノズルの前記先端に到達し、ノズル軸に沿って収束し、低圧力領域が前記印刷ノズルの前記先端において生じ、前記低圧力領域は、前記印刷ノズル中の前記印刷流体を抽出させ、
前記電場は抽出された前記印刷流体を印刷基板に向かって加速させるように配置される、印刷機。 - 前記抽出ガスノズルは前記印刷ノズルと同軸であり、かつ前記印刷ノズルを囲み、前記抽出ガスは、前記抽出ガスノズルから放出されて前記印刷ノズルの前記先端で収束する前に、前記印刷ノズルの前記外面における環状間隙に沿って流れる、請求項1に記載の印刷機。
- 前記抽出ガスノズルと同軸であり、前記抽出ガスノズルを囲む、集束ノズルをさらに備え、前記集束ノズルは、前記抽出ガスノズルの外面における環状間隙に沿って流れる集束ガスが前記集束ノズルから放出されるように構成され、
前記集束ノズルから放出された前記集束ガスは、前記印刷ノズルと前記印刷基板との間における抽出された前記印刷流体の周りに集束ガスの覆いを提供する、請求項1に記載の印刷機。 - 前記抽出ガスノズルは、前記抽出ガスノズルと前記印刷基板との間に前記電場を提供する帯電電極を備える、請求項1に記載の印刷機。
- 印刷機であって、
前記印刷機は印刷ノズルを備え、前記印刷ノズルは、先端を有し、前記印刷ノズルからの抽出のために前記先端に印刷流体を供給するように構成された、前記印刷ノズルと、
抽出ガスノズルは、前記印刷ノズルの前記先端が抽出ガスの流れの中にある状態で、前記抽出ガスの流れを印刷基板に向かって、かつ前記印刷ノズルの外面に沿って放出し、前記抽出ガスの流れが前記印刷ノズルの前記先端に到達し、ノズル軸に沿って収束するように構成され、前記抽出ガスの速度は、低圧力領域を前記印刷ノズルの前記先端において発生させるのに十分であり、前記低圧力領域は、前記印刷ノズルから前記印刷ノズル中の前記印刷流体を抽出させ、前記印刷基板に運び、
前記抽出ガスノズルはガス放出ポートを含み、前記ガス放出ポートは環状であり、前記印刷ノズルを囲み、
前記印刷ノズルの前記先端と前記印刷基板との間の距離は、前記ガス放出ポートと前記印刷基板との間の距離よりも小さい、
印刷機。 - 電極をさらに備え、前記電極は、前記印刷流体が前記印刷ノズルからの抽出後に前記印刷基板に向かって加速するように、前記電極と前記印刷基板との間に電場を提供するように構成される、請求項5に記載の印刷機。
- 前記印刷流体は前記印刷ノズルにおいて加圧され、前記印刷流体は、500センチポイズより大きく500,000センチポイズ以下の粘度を有する、または5μm~200μmの有効直径を有する固体粒子を含有する、請求項5に記載の印刷機。
- 前記抽出ガスノズルは電極を含み、前記電極は、前記印刷流体が抽出後に前記印刷基板に向かって加速するように、前記電極と前記印刷基板との間に電場を提供するように構成される、請求項5に記載の印刷機。
- 前記印刷ノズルは電気絶縁性である、請求項5に記載の印刷機。
- 前記印刷ノズルと前記印刷基板との間における抽出された前記印刷流体の周りに集束ガスの覆いを提供するように構成される、ガス放出ポートをさらに備える,請求項5に記載の印刷機。
- 印刷ノズルと基板との間に電場を選択的に生成し、前記印刷ノズルの先端に沿って抽出ガスの流れを選択的に提供するように構成された印刷機であって、
抽出ガスノズルを備え、前記抽出ガスノズルは、前記印刷ノズルの外面に沿って抽出ガスの流れを放出するように構成され、低圧力領域が前記印刷ノズルの先端において生じ、抽出ガスの流れが選択的に提供された時に前記低圧力領域は、前記印刷ノズル中の印刷流体を抽出させ、
前記印刷機は、
前記抽出ガスの前記流れが提供され、前記電場が生成されない、ガス抽出モードと、
前記抽出ガスが提供され、前記電場が生成される、eアシステッドガス抽出モードと、
前記抽出ガスが提供されず、前記電場が生成される、eジェットモードと、
において動作可能である、印刷機。 - 前記印刷ノズルの周囲を囲む電極をさらに備え、前記eアシステッドガス抽出モードおよび前記eジェットモードにおいて前記電場を生成するために、前記電極に電圧が印加される、請求項11に記載の印刷機。
- 前記印刷ノズルと同心である第2のノズルをさらに備え、前記抽出ガスは、前記ガス抽出モードおよび前記eアシステッドガス抽出モードにおいて、前記印刷ノズルの前記先端に沿って流れる前に前記印刷ノズルと前記第2のノズルの間における間隙に沿って流れる、請求項11に記載の印刷機。
- 前記印刷機は、電極電圧をそれぞれオフおよびオンに切り替えることによって、前記ガス抽出モードと前記eアシステッドガス抽出モードとの間で変更可能である、請求項11に記載の印刷機。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201962873033P | 2019-07-11 | 2019-07-11 | |
US62/873,033 | 2019-07-11 | ||
PCT/US2020/037758 WO2021006996A1 (en) | 2019-07-11 | 2020-06-15 | Aerosol printing of specialty fluids |
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JP2022540230A JP2022540230A (ja) | 2022-09-14 |
JP7442871B2 true JP7442871B2 (ja) | 2024-03-05 |
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JP2022501308A Active JP7442871B2 (ja) | 2019-07-11 | 2020-06-15 | 特殊流体のエアロゾル印刷 |
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US (2) | US11548277B2 (ja) |
EP (1) | EP3996924A4 (ja) |
JP (1) | JP7442871B2 (ja) |
KR (1) | KR20220044516A (ja) |
WO (1) | WO2021006996A1 (ja) |
Citations (4)
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US20100163647A1 (en) | 2006-02-24 | 2010-07-01 | Dieter Wurz | Two-Component Nozzle With Secondary Air Nozzles Arranged in Circular Form |
JP2011255277A (ja) | 2010-06-07 | 2011-12-22 | Toyota Motor Corp | 静電塗装装置 |
US20140253638A1 (en) | 2011-10-17 | 2014-09-11 | Enjet Co., Ltd. | Device for Discharging Ink Using Electrostatic Force |
JP2016144786A (ja) | 2015-02-09 | 2016-08-12 | アネスト岩田株式会社 | 静電噴霧装置 |
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US3698635A (en) * | 1971-02-22 | 1972-10-17 | Ransburg Electro Coating Corp | Spray charging device |
JPS56130366A (en) * | 1980-03-19 | 1981-10-13 | Sanyo Electric Co Ltd | Ink jet printer |
US4403228A (en) * | 1981-03-19 | 1983-09-06 | Matsushita Electric Industrial Company, Limited | Ink jet printing head having a plurality of nozzles |
JPS57182448A (en) * | 1981-05-07 | 1982-11-10 | Canon Inc | Head for ink jet recording |
US4672397A (en) * | 1983-08-31 | 1987-06-09 | Nec Corporation | On-demand type ink-jet print head having an air flow path |
JPS6135257A (ja) * | 1984-07-27 | 1986-02-19 | Matsushita Electric Ind Co Ltd | インクジエツト記録装置 |
US4839666B1 (en) * | 1987-11-09 | 1994-09-13 | William Jayne | All surface image forming system |
US5456414A (en) * | 1993-10-28 | 1995-10-10 | Ransburg Corporation | Suction feed nozzle assembly for HVLP spray gun |
US6065825A (en) * | 1997-11-13 | 2000-05-23 | Eastman Kodak Company | Printer having mechanically-assisted ink droplet separation and method of using same |
KR100580654B1 (ko) * | 2004-10-29 | 2006-05-16 | 삼성전자주식회사 | 노즐 플레이트와 이를 구비한 잉크젯 프린트헤드 및 노즐플레이트의 제조 방법 |
EP2218513A1 (en) * | 2007-11-07 | 2010-08-18 | Fuence Co., Ltd. | Fixing machine |
KR20090055200A (ko) | 2007-11-28 | 2009-06-02 | 삼성전자주식회사 | 잉크젯 프린트헤드 및 이를 이용한 잉크 토출 방법 |
KR101392272B1 (ko) | 2012-09-24 | 2014-05-07 | 엔젯 주식회사 | 토출 정밀제어가 가능한 인쇄장치 |
US9415590B2 (en) * | 2013-04-26 | 2016-08-16 | The Regents Of The University Of Michigan | Electrohydrodynamic jet printing device with extractor |
US10933636B2 (en) | 2013-12-06 | 2021-03-02 | Palo Alto Research Center Incorporated | Print head design for ballistic aerosol marking with smooth particulate injection from an array of inlets into a matching array of microchannels |
-
2020
- 2020-06-15 WO PCT/US2020/037758 patent/WO2021006996A1/en unknown
- 2020-06-15 US US16/901,556 patent/US11548277B2/en active Active
- 2020-06-15 JP JP2022501308A patent/JP7442871B2/ja active Active
- 2020-06-15 KR KR1020227004501A patent/KR20220044516A/ko not_active Application Discontinuation
- 2020-06-15 EP EP20836177.4A patent/EP3996924A4/en active Pending
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2022
- 2022-12-22 US US18/086,905 patent/US20230122430A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US20100163647A1 (en) | 2006-02-24 | 2010-07-01 | Dieter Wurz | Two-Component Nozzle With Secondary Air Nozzles Arranged in Circular Form |
JP2011255277A (ja) | 2010-06-07 | 2011-12-22 | Toyota Motor Corp | 静電塗装装置 |
US20140253638A1 (en) | 2011-10-17 | 2014-09-11 | Enjet Co., Ltd. | Device for Discharging Ink Using Electrostatic Force |
JP2016144786A (ja) | 2015-02-09 | 2016-08-12 | アネスト岩田株式会社 | 静電噴霧装置 |
Also Published As
Publication number | Publication date |
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JP2022540230A (ja) | 2022-09-14 |
US11548277B2 (en) | 2023-01-10 |
WO2021006996A1 (en) | 2021-01-14 |
EP3996924A4 (en) | 2023-07-19 |
US20210008880A1 (en) | 2021-01-14 |
EP3996924A1 (en) | 2022-05-18 |
US20230122430A1 (en) | 2023-04-20 |
KR20220044516A (ko) | 2022-04-08 |
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