公开(公告)号：US20150040939A1

公开(公告)日：2015-02-12

申请号：US14522015

申请日：2014-10-23

Applicant: XEROX CORPORATION ,  Palo Alto Research Center Incorporated

Inventor： Naveen CHOPRA ,  Peter Gordon ODELL ,  Steven E. READY ,  Eric PEETERS ,  Timothy D. STOWE ,  Ashish PATTEKAR ,  David K. BIEGELSEN

IPC: B08B3/10 ,  B08B3/08

CPC classification number: B08B3/10 ,  B08B3/08 ,  B41F7/30 ,  B41N3/08 ,  B41P2227/20

Abstract: A dampening fluid useful in offset ink printing applications contains water and a surfactant whose structure can be altered. The alteration in structure aids in reducing accumulation of the surfactant on the surface of an imaging member. The surfactant can be decomposed, switched between cis-trans states, or polymerizable with ink that is subsequently placed on the surface.

Abstract translation: 用于胶印油墨印刷应用的润版液含有水和可以改变其结构的表面活性剂。 结构的改变有助于减少表面活性​​剂在成像构件的表面上的积聚。 表面活性剂可以分解，在顺式 - 反态之间切换，或与随后放置在表面上的油墨可聚合。

公开(公告)号：US20180074398A1

公开(公告)日：2018-03-15

申请号：US15262750

申请日：2016-09-12

Applicant: XEROX CORPORATION ,  PALO ALTO RESEARCH CENTER INCORPORATED

Inventor： James D. MAYO ,  Aurelian Valeriu MAGDALINIS ,  Timothy D. STOWE ,  C. Geoffrey ALLEN ,  Biby E. ABRAHAM ,  Marcel P. BRETON ,  Jonathan Siu-Chung LEE

IPC: G03F7/00 ,  C09D11/107 ,  C09D11/037 ,  B41F7/02

CPC classification number: G03F7/0002 ,  B41F7/02 ,  C09D11/03 ,  C09D11/037 ,  C09D11/101 ,  C09D11/107

Abstract: An ink composition useful for digital offset printing applications includes a colorant and a high viscosity thickening agent. A process for variable data lithographic printing includes applying a dampening fluid to an imaging member surface; forming a latent image by evaporating the dampening fluid from selective locations on the imaging member surface to form hydrophobic non-image areas and hydrophilic image areas; developing the latent image by applying an ink composition comprising an ink component to the hydrophilic image areas, the ink composition comprising a high viscosity thickening agent to raise the viscosity of the composition from about 1.05 to about 2 times higher while maintaining excellent transfer to a substrate at low temperatures.

公开(公告)号：US20170225452A1

公开(公告)日：2017-08-10

申请号：US15496709

申请日：2017-04-25

Applicant: Xerox Corporation ,  Palo Alto Research Center Incorporated

Inventor： Naveen CHOPRA ,  Peter Gordon ODELL ,  Steven E. READY ,  Eric PEETERS ,  Timothy D. STOWE ,  Ashish PATTEKAR ,  David K. BIEGELSEN

IPC: B41F35/06 ,  B41F7/24 ,  B08B3/10 ,  B41N3/08 ,  B08B3/08 ,  B41F7/04 ,  B41F35/02

CPC classification number: B41F35/06 ,  B08B3/08 ,  B08B3/10 ,  B41F7/04 ,  B41F7/24 ,  B41F7/30 ,  B41F35/02 ,  B41N3/08 ,  B41P2200/21 ,  B41P2227/20 ,  B41P2235/10 ,  B41P2235/50

Abstract: A dampening fluid useful in offset ink printing applications contains water and a surfactant whose structure can be altered. The alteration in structure aids in reducing accumulation of the surfactant on the surface of an imaging member. The surfactant can be decomposed, switched between cis-trans states, or polymerizable with ink that is subsequently placed on the surface.

公开(公告)号：US20140204171A1

公开(公告)日：2014-07-24

申请号：US13747465

申请日：2013-01-22

Applicant: XEROX CORPORATION ,  PALO ALTO RESEARCH CENTER INCORPORATED

Inventor： Mandakini KANUNGO ,  Srinivas METTU ,  Timothy D. STOWE ,  Ashish PATTEKAR

IPC: B41J2/435

CPC classification number: B41J2/435 ,  B41M1/06 ,  B41M5/0256 ,  B41N1/12 ,  B41N1/22 ,  G03F7/0002 ,  G03G15/751

Abstract: An ink-based digital printing apparatus includes an imaging member having a surface layer with regular texture. The regular texture includes an array of microstructures such as cavities. Methods include forming the imaging member textured surface using photolithography and molding processes.

Abstract translation: 一种基于油墨的数字打印设备包括具有规则纹理的表面层的成像构件。 规则纹理包括诸如空腔的微结构阵列。 方法包括使用光刻和模制方法形成成像构件纹理表面。

公开(公告)号：US20150101502A1

公开(公告)日：2015-04-16

申请号：US14580108

申请日：2014-12-22

Applicant: Palo Alto Research Center Incorporated

Inventor： Timothy D. STOWE ,  Eric PEETERS

IPC: B41F7/24 ,  B41F7/02

CPC classification number: B41F7/24 ,  B41F7/00 ,  B41F7/025 ,  B41F7/26 ,  B41F31/302 ,  B41F35/02 ,  B41M1/06 ,  B41P2227/70

Abstract: A reimageable layer of an imaging member is provided with a dampening fluid layer. The reimageable layer has specific properties such as composition, surface profile, and so on so as to be well suited for receipt and carrying the dampening fluid layer. An optical patterning subsystem such as a scanned modulated laser patterns the dampening fluid layer. Ink having a first set of properties such as color, composition, etc., is applied at an inking subsystem such that it selectively resides in voids formed by the patterning subsystem in the dampening fluid layer to thereby form an inked latent image. The inked latent image is then transferred to a substrate, and the reimageable surface cleaned. The process is repeated for a second ink having properties different than the first. Each ink image may successively be applied to the substrate, or a composite image may be formed then applied to the substrate.

Abstract translation: 成像构件的可再成像层设置有阻尼流体层。 可再成像层具有特定的性质，例如组成，表面轮廓等，以便很好地适合接收和承载润版液层。 诸如扫描调制激光器的光学图案化子系统对阻尼流体层进行图案化。 具有第一组性质如颜色，组成等的油墨被施加在着墨子系统上，使得其选择性地驻留在阻尼流体层中由图案化子系统形成的空隙中，从而形成着墨潜影。 然后将着墨的潜像转印到基底上，并清洁可再成像的表面。 对于具有不同于第一墨水的性质的第二墨水重复该过程。 每个油墨图像可以连续地施加到基板上，或者可以形成合成图像然后施加到基板。

公开(公告)号：US20180037044A1

公开(公告)日：2018-02-08

申请号：US15230954

申请日：2016-08-08

Applicant: PALO ALTO RESEARCH CENTER INCORPORATED

Inventor： Timothy D. STOWE ,  Gregory B. ANDERSON

IPC: B41M1/06

Abstract: A chamber blade system maximizes ink flow at an anilox doctor blade by including a heating element adjacent the doctor blade to heat ink adjacent the blade. The heating element may be a heat strip next to an anilox doctor blade that heats the ink adjacent the doctor blade and temporarily reduces the ink viscosity to improve the flow of ink in the vicinity of the blade. Doctoring blades with a ceramic tip coating may be configured to allow a small amount of controlled ink flow through that can wet the lands thereby reducing the hydrodynamic back pressures and friction when trying to force the ink into anilox cells.

公开(公告)号：US20200283889A1

公开(公告)日：2020-09-10

申请号：US16834527

申请日：2020-03-30

Applicant: Palo Alto Research Center Incorporated

Inventor： Janos VERES ,  Timothy D. STOWE ,  Gregory WHITING

IPC: C23C14/56 ,  C23C14/04

Abstract: A system and method are provided for implementing a unique scheme by which to execute digital vapor phase patterning on metals, semiconductor substrates and other surfaces using a proposed variable data digital lithographic image forming architecture or technique. For certain substrate printing and manufacturing applications, including some printed electronics applications, the disclosed schemes implement techniques to digitally pattern metal layers with bulk material properties in a manner that is aligned with underlying layers on the fly. The disclosed digital printing process may pattern a release oil on a substrate in support of a metal deposition process. Changeable patterning is implemented with an ability to modify the alignment of the patterns on-the-fly. The release layer on a drum is laser patterned in order that the patterned release layer is transferred to the substrate, or the patterning of the release layer is accomplished directly on the substrate.

公开(公告)号：US20160176186A1

公开(公告)日：2016-06-23

申请号：US14578302

申请日：2014-12-19

Applicant: Palo Alto Research Center Incorporated

Inventor： Sourobh RAYCHAUDHURI ,  Timothy D. STOWE

IPC: B41J2/005

CPC classification number: B41J2/0057 ,  B82Y30/00 ,  G03G13/283 ,  G03G13/286

Abstract: An apparatus and method for providing rewritable printing by utilizing nanoparticles at the printing plate to reduce power requirements for imaging modules in a variable data lithography system is provided. The disclosed embodiments propose a printing plate surface that is made up of an elastomer and incorporates engineered nanoparticles that have high optical absorption properties to improve ablation performance. The exact material, composition and geometry of the engineered nanoparticles are optimized for the specified imaging module without altering plate properties. The apparatus and method use electromagnetic radiation coupled with a nano-filler to locally apply heat to a dampening solution on the printing plate to form a latent image. The nanoparticles do not undergo a physical or chemical change beyond heating up.

Abstract translation: 提供了一种通过在印版上利用纳米颗粒提供可重写打印以减少可变数据光刻系统中的成像模块的功率需求的装置和方法。 所公开的实施方案提出了由弹性体组成的印版表面，并且结合了具有高光吸收特性以改善消融性能的工程纳米颗粒。 针对特定的成像模块优化了工程纳米颗粒的确切材料，组成和几何形状，而不改变板的性质。 该装置和方法使用与纳米填料结合的电磁辐射，将热量局部地加热到印版上的润版溶液上以形成潜像。 纳米颗粒在加热之后不会经历物理或化学变化。

公开(公告)号：US20180056645A1

公开(公告)日：2018-03-01

申请号：US15244841

申请日：2016-08-23

Applicant: PALO ALTO RESEARCH CENTER INCORPORATED

Inventor： Timothy D. STOWE ,  Gregory B. ANDERSON ,  Martin J. SHERIDAN

IPC: B41F35/06 ,  B41F7/02

Abstract: A variable lithographic cleaning apparatus, system and method works on the principle that dust and ink residue may be transferred from a lower surface energy reimageable conformable blanket surface to a higher surface energy surface low durometer cleaning member, such as the tacky roller, and then to an even higher surface energy cleaning member, such as the hard roller, which is hard and robust to scratching. The hard roller can then been scrubbed clean by an ink flushing device having a third cleaning member, such as a melamine sponge, wetted with a cleaning solution with the hard roller dried upon each rotation.

公开(公告)号：US20160082716A1

公开(公告)日：2016-03-24

申请号：US14958823

申请日：2015-12-03

Applicant: PALO ALTO RESEARCH CENTER INCORPORATED

Inventor： Timothy D. STOWE

IPC: B41F31/02

CPC classification number: B41F31/02 ,  B41C1/1008 ,  B41F31/027 ,  B41F31/20 ,  B41M1/06 ,  B41N3/08 ,  B41P2227/70 ,  B41P2231/20

Abstract: A variable lithographic inking system includes a chamber blade system configured to supply ink to an anilox member of an inking system. The inking system includes a soft ink transfer roll and a hard form roll. Ink is transferred from the anilox roll to the form roll by way of the transfer roll, and from the form roll to a reimageable surface layer of an imaging member of a variable data lithographic system. An ink layer free of ink history is uniformly applied onto a surface of the form roll, and subsequently transferred to the reimageable surface layer while avoiding or substantially eliminating image ghosting related to inking non-uniformities.