Vim Technologies Ltd.

Highcon Systems Ltd.

Presstek, Inc.

Michael Karp

Aida Porat

Claudio Rottman

Kevin Ray

Sergei Bonder

Avigdor Bieber

Ehud Shchori

Ron Or

Zeev Savion

David Ben-David

Michael Zimmer

Eli Ireni

Travis Softic

Gal Tamir

Boris Brant

Sergey Bonder

Oded Danzinger

Oren Etziony

Geula Zegnioyev

Maria Sypek

Thuan Nguyen

A system for cleaning a surface of a substrate includes a cleaning element including a resilient compressible material. A liquid source provides liquid directly to the cleaning element, and a squeezing roller engages the cleaning element and applies pressure thereto, to squeeze out excess liquid from said resilient compressible material. A counter element opposes said cleaning element such that the substrate is disposed between the counter element and the cleaning element. The substrate moves between the counter element and the cleaning element such that a surface of the cleaning element, having a suitable amount of liquid absorbed therein, engages and cleans the surface of the substrate without damaging the substrate.

System and method for cleaning a laser cut substrate

A die and counter die system for impressing a relief pattern onto a substrate, including a male die film and at least one female die. The female die includes a female-die contact surface including at least one cavity defining the relief pattern. The male die film includes a flexible male-die contact surface which is featureless in a region thereof opposing the relief pattern on the at least one female die. The system further includes a compression mechanism adapted, when the substrate is disposed between the male die contact surface and the female die contact surface, to move the male die film and the at least one female die towards one another so as to impress the relief pattern on the substrate.

System for creating a relief pattern on a substrate

A die and counter die system for impressing a relief pattern onto a substrate, including at least one male die including a contact surface and defining a relief pattern, a compressible counter film including a base layer, a contact layer disposed opposite the contact surface of the at least one male die and spaced therefrom, and a compressible layer disposed between the base layer and the contact layer and attached thereto. The contact layer is featureless in a region thereof opposing the relief pattern on the at least one male die. The compressible counter film has a compressibility, in a direction perpendicular to a broad face of the compressible counter film, in the range of 5-30% at 1.35 MPa. The system further includes a compression mechanism adapted to move the at least one male die and the compressible counter film towards one another in an operative mode.

System for impressing a relief pattern on a substrate

Embodiments of the present invention relate to a system and method for manufacturing a three-dimensional object from a stack of pre-stripped layers of substrate. Each object layer is formed by (i) providing substrate comprising waste portion(s) and substrate-retained portion(s) that are attached to each other and separated from one another by cut(s) within the substrate; (ii) subsequently, subjecting the subject of each layer to a stripping process which selectively strips away substrate-waste portion(s) from the substrate-retained portion(s). After stripping, the object layer is added to a stack of previously-stacked object layers to grow the stack. This process is repeated to further grow the stack. Object layers of the stack are bonded to each other to build the three-dimensional object therefrom. Apparatus and methods for stripping are also described&#x2014;any teaching or combination of teaching(s) related to stripping substrate may be employed in any additive-manufacturing process described herein.

Method and apparatus for building a 3D object from layers of pre-stripped substrate

A layered printing plate that attains a high degree of clarity and improved clean out. The printing plate may include an oleophilic substrate, a laser absorbing imaging layer and an oleophobic silicon layer. One embodiment utilizes an amine resin rather than a traditional polymer as the basic organic matter of the imaging layer, adds of colloidal silica into the imaging layer to improve the cleanout properties, and utilizes a substrate that absorbs IR radiation rather than reflects it.

Thermal imagable waterless lithographic member

Wet lithographic printing members for imaging by an inkjet printer using pigment-based aqueous ink and method for calibrating the amount of the inkjet ink to be injected in solid areas of an image are disclosed. An exemplary printing member can comprises a base substrate and a top hydrophilic coating layer having a thickness in the range of 2 to 10 microns above the base substrate. A volume of less than 10 nl/mm2 of inkjet ink is used in order to image areas in which the image is solid. Areas of the top hydrophilic coating layer, which are imagewise covered by aqueous pigmented inkjet ink, become hydrophobic. In some embodiments after imaging, the surface of the imaged printing member can be treated with acidic colloidal silica solution. Exemplary treatment can comprise wiping the surface of the imaged printing member with the acidic colloidal silica solution.

Direct inkjet imaging lithographic plates, methods for imaging and pre-press treatment

A lithographic precursor includes a hydrophilic layer that presents a surface for lithographic interaction, and which is formulated to receive a pigment-based aqueous ink deposited (e.g., by inkjet) in an 'imagewise' pattern. The compatibility between the ink and the hydrophilic layer is such that a baking step is not required for subsequent printing.

Methods of preparing lithographic printing members by imagewise deposition and precursors suitable therefor

Following imagewise exposure of a sandwiched photopolymer layer, the outer layers between which the photopolymer is interposed are separated in a manner that leaves some photopolymer on each of the separated layers. The photopolymer remaining on one layer contains the raised pattern that will carry ink, and may be subjected to further exposure to actinic radiation in order to complete the curing process without the need for washing; the photopolymer remaining on the other layer can be removed and reused. As a result, waste is minimized or eliminated.

Method of preparing flexographic printing members

A water based fluid that can be utilized in a standard inkjet printer to image a lithographic printing plate. The water based fluid may include a polymer that is soluble in an alkaline aqueous media and that is resistant to neutral or acidic aqueous media. In addition, the water based fluid may include a sufficient volume of water soluble material to raise the pH level higher than 8. Further, the water based fluid may include a sufficient volume of humectant co-solvents to prevent the nozzles of an inkjet printer from drying out. The water based fluid may be used to image a lithographic plate that include an inkjet ink accepting hydrophilic layer hydrophilic properties. Various embodiments of the water based fluid advantageously allow a plate to be imaged, and then without baking or adding other chemical treatments, the plate can be immediately used for printing.

Water based fluid for producing ready to press direct inkjet image-able lithographic printing plates

Embodiments of the invention are directed to a printing member for imaging with an inkjet printer using pigment-based aqueous inkjet ink. The printing member may include a substrate and a hydrophilic coating layer. The coasting layer may include acidic colloidal silica whose particles have an elongated shape, a hydrophilic polymer and a crosslinking agent.

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Petah Tikva, Israel

Michael Karp