JP7361049B2 - 音響泳動印刷における音響泳動力の調節 - Google Patents
音響泳動印刷における音響泳動力の調節 Download PDFInfo
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- JP7361049B2 JP7361049B2 JP2020561068A JP2020561068A JP7361049B2 JP 7361049 B2 JP7361049 B2 JP 7361049B2 JP 2020561068 A JP2020561068 A JP 2020561068A JP 2020561068 A JP2020561068 A JP 2020561068A JP 7361049 B2 JP7361049 B2 JP 7361049B2
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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
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04588—Control methods or devices therefor, e.g. driver circuits, control circuits using a specific waveform
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/112—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04575—Control methods or devices therefor, e.g. driver circuits, control circuits controlling heads of acoustic type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/22—Direct deposition of molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/50—Means for feeding of material, e.g. heads
- B22F12/53—Nozzles
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Ink Jet (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
本特許文書は、2018年4月30日に出願された米国特許仮出願第62/664,467号の35U.S.C.§119(e)に基づく優先権の権益を主張する出願であり、この米国特許仮出願を参照により引用し、その記載内容全体を本明細書の一部とする。
Fc=πσd=Fg+Fa=Vρ(g+ga)→V=πdσ/ρgeq (1)
Fg(t)+Fa(t)=V(t)ρ(g+ga(t))
=Q・t・ρ(g+ga(t)) (2)
V(t)ρ(g+ga(t))=Q・t・ρ(g+ga)=Fc=πσd (3)
Q・t・ρ(g+ga(t))≧Fc=πσd (4)
Claims (18)
- 音響泳動印刷方法であって、前記方法は、
ノズルを第1の流体内に配置するステップを含み、前記ノズルは、ノズル開口部を有し、
振動エミッタによって音響場を前記第1の流体内に発生させるステップを含み、
第2の流体を前記ノズルから押し出し、それにより前記ノズル開口部のところに前記第2の流体のペンダント液滴を形成するステップを含み、
前記ノズル開口部のところの前記音響場を変調するステップを含み、
前記音響場からの音響力は、前記ペンダント液滴の離脱を促進し、それにより、前記第2の流体は、噴出液滴として前記第1の流体内に噴出され、
前記音響場を変調する前記ステップは、前記音響場をパルス化するステップを含み、前記ペンダント液滴は、前記パルス化によって定められた離脱周波数で離脱され、
前記噴出液滴の噴出速度は、前記パルス化のデューティーサイクルが増大するにつれて増大する、方法。 - 前記パルス化の周波数は、0.01Hz~10,000kHzである、請求項1記載の方法。
- 前記パルス化は、方形波、三角波、のこぎり波、正弦波から成る群から選択された波形で実施される、請求項1または2記載の方法。
- 前記パルス化の振幅は、ピーク振幅の0%超から100%まで変化する、請求項1~3のうちいずれか一に記載の方法。
- 前記パルス化の前記振幅は、前記ピーク振幅の50%から100%まで変化する、請求項4記載の方法。
- 前記ペンダント液滴は、200ms未満の離脱誤差がある所定の時間で前記ノズルから離脱する、請求項1~5のうちいずれか一に記載の方法。
- 複数の前記ノズルを前記第1の流体内に配置するステップをさらに含み、前記ノズル開口部からの前記ペンダント液滴の前記離脱は、同期化される、請求項1~6のうちいずれか一に記載の方法。
- 前記噴出液滴は、球の形をしている、請求項1~7のうちいずれか一に記載の方法。
- 前記第2の流体は、0.001から1000までの範囲にあるZ値を有する、請求項1~8のうちいずれか一に記載の方法。
- 前記Z値は、10超~1000である、請求項9記載の方法。
- 前記ノズル開口部は、固体、液体、またはゲルから成る印刷基材と対向して位置決めされる、請求項1~10のうちいずれか一に記載の方法。
- 前記噴出液滴は、Δα<10゜の角度軌道誤差のある状態で所定の場所で前記印刷基材上または前記印刷基材内に付着する、請求項11記載の方法。
- 音響泳動印刷方法であって、前記方法は、
ノズルを第1の流体内に配置するステップを含み、前記ノズルは、ノズル開口部を有し、
振動エミッタによって音響場を前記第1の流体内に発生させるステップを含み、
第2の流体を前記ノズルから押し出し、それにより前記ノズル開口部のところに前記第2の流体のペンダント液滴を形成するステップを含み、
前記ノズル開口部のところの前記音響場を変調するステップを含み、
前記音響場からの音響力は、前記ペンダント液滴の離脱を促進し、それにより、前記第2の流体は、噴出液滴として前記第1の流体内に噴出され、
前記音響力を変調する前記ステップは、音響場周波数とは異なる周波数を有する波形を重ね合わせ、それにより前記音響力の振幅変調を実施するステップを含む、方法。 - 前記波形の前記周波数は、前記ペンダント液滴の固有周波数の±50%以内である、請求項13記載の方法。
- 前記波形の前記周波数は、前記音響場周波数よりも低い、請求項13または14記載の方法。
- 離脱時における前記ペンダント液滴のサイズは、前記振幅変調に起因して減少し、前記ペンダント液滴の幅または直径は、約200ミクロン以下である、請求項13~15のうちいずれか一に記載の方法。
- 前記ペンダント液滴は、離脱時に球形、卵形および涙滴形から選択された所定の形状を有する、請求項1~16のうちいずれか一に記載の方法。
- 前記音響場の前記変調は、振幅変調、周波数変調、共振器のサイズまたは幾何学的形状の調節、エミッタのサイズまたは幾何学的形状の調節、および/または前記第1の流体の温度の調節の任意の組み合わせに起因している、請求項1~17のうちいずれか一に記載の方法。
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US201862664467P | 2018-04-30 | 2018-04-30 | |
US62/664,467 | 2018-04-30 | ||
PCT/US2019/029039 WO2019212845A1 (en) | 2018-04-30 | 2019-04-25 | Modulation of acoustophoretic forces in acoustophoretic printing |
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JP7361049B2 true JP7361049B2 (ja) | 2023-10-13 |
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Citations (3)
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JP2003121440A (ja) | 2001-10-12 | 2003-04-23 | Seiko Epson Corp | 反応性チップの製造方法および該方法に用いる微小液滴吐出装置 |
US20170001439A1 (en) | 2014-01-24 | 2017-01-05 | Eth Zurich | Acoustophoretic printing apparatus and method |
WO2018022513A1 (en) | 2016-07-27 | 2018-02-01 | President And Fellows Of Harvard College | Apparatus and method for acoustophoretic printing |
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GB8829567D0 (en) * | 1988-12-19 | 1989-02-08 | Am Int | Method of operating pulsed droplet deposition apparatus |
JP3133916B2 (ja) * | 1995-03-20 | 2001-02-13 | シルバー精工株式会社 | 連続噴射型インクジェット記録装置およびその最適励振周波数設定方法 |
JP4432425B2 (ja) * | 2003-09-25 | 2010-03-17 | コニカミノルタホールディングス株式会社 | 液滴吐出ヘッドの駆動方法 |
FR2979256B1 (fr) * | 2011-08-30 | 2014-09-26 | Centre Nat Rech Scient | Dispositif de manipulation d'objets par champs de force acoustique |
WO2014029505A1 (en) * | 2012-08-22 | 2014-02-27 | Eth Zurich | Acoustophoretic contactless transport and handling of matter in air |
WO2015172095A1 (en) * | 2014-05-08 | 2015-11-12 | Flodesign Sonics, Inc. | Acoustophoretic device with piezoelectric transducer array |
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Patent Citations (3)
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JP2003121440A (ja) | 2001-10-12 | 2003-04-23 | Seiko Epson Corp | 反応性チップの製造方法および該方法に用いる微小液滴吐出装置 |
US20170001439A1 (en) | 2014-01-24 | 2017-01-05 | Eth Zurich | Acoustophoretic printing apparatus and method |
WO2018022513A1 (en) | 2016-07-27 | 2018-02-01 | President And Fellows Of Harvard College | Apparatus and method for acoustophoretic printing |
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CN112055644A (zh) | 2020-12-08 |
CN112055644B (zh) | 2022-11-29 |
JP2021523032A (ja) | 2021-09-02 |
WO2019212845A1 (en) | 2019-11-07 |
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