摘要:
A method for direct transfer printing is disclosed. The method for direct transfer printing includes applying a fountain solution to an imaging blanket in a negative imagewise manner using an inkjet printhead, contacting the imaging blanket with a printing substrate, transferring the fountain solution from the imaging blanket to the printing substrate, contacting the printing substrate with an inking station, and depositing an ink film from the inking station to the printing substrate in one or more locations on the printing substrate where there is no fountain solution. A module for a direct transfer marking process and a direct transfer printing system are also disclosed.
摘要:
A system and method are provided for optimizing a multi-color variable digital data lithographic image forming system by controlling characteristics of one or more individual color inks to maximize ink transfer of a particular color ink layer onto the surface of an image receiving medium substrate, or onto other color ink layers deposited on the surface of the image receiving medium substrate when producing digital output images, including multi-color digital output images, with a proposed variable digital offset lithographic architecture. Ink characteristics and ink transfer parameters are particularly optimized in the proposed variable digital data lithographic systems to promote high efficiency ink transfer from an ink donor surface to an ink receiver surface in order that excessive amounts of untransferred ink do not remain on the ink donor surface requiring extensive cleaning of the reimageable surface in the image forming system between cycles of a multi-color ink system.
摘要:
A system and method are provided for controlling archival sheet curl formation in image receiving media substrates on which images are formed using aqueous inks as the marking material. Archival curl occurs over time and is based on a partial coverage of the image receiving media substrates by the deposited water-based marking materials. A unique post-processing scheme applies selective aqueous clear fluid onto imaged substrates (cut sheets) to substantially counteract long-term archival curl formation in the individual image receiving media substrates. Both opposing sides of the cut sheet are processed in a manner that causes them to substantially equally undergo the generally irreversible shrinkage phenomenon that leads to archival curl, thus substantially canceling out the archival curl formation mechanism. A clear fluid is applied image-wise to portions of one or both sides of the image receiving media substrates to counterbalance the formed aqueous ink image.
摘要:
A system and method are provided for implementing relatively low temperature joining processes, including displacement/vibration welding techniques and/or heat staking techniques, in a process of building up laminate layers to form and/or manufacture three-dimensional objects, parts and components in additive material (AM) manufacturing systems. A multi-stage 3D object forming scheme is described involving steps of laminate cutting (with lasers or other cutting devices); laminate transport between processing stations (including using one or more of conveyors, robotic pick and place devices and the like); laminate stacking, clamping and adhering through comparatively low temperature welding or other mechanical joining (including displacement/vibration welding or heat staking); and mechanical surface finishing (via CNC machining or other comparable process).
摘要:
A system and method are provided for implementing localized and directed laser welding joining techniques in a process of building up laminate layers to form and/or manufacture three-dimensional objects, parts and components (3D objects). A multi-stage 3D object forming scheme is described involving steps of laminate cutting (with lasers or other cutting devices); laminate transport between processing stations (including using one or more of conveyors, robotic pick and place devices and the like); laminate stacking, clamping and adhering through a targeted laser welding technique; and mechanical surface finishing (via CNC machining or other comparable process).
摘要:
An apparatus and method for printing directly onto print media including smooth non-absorbent media substrates (e.g., polymer films) inks having a wide range in viscosity, so that flexographic, gravure, and lithographic inks can all be contemplated. The proposed method is able to print with variable data/imaging. Dampening fluid may be patterned onto an imaging roll by coating the imaging roll with a layer of the dampening fluid and selectively evaporating off a patterned portion via a laser imaging device. The imaging roll then contacts the print substrate and transfers the patterned dampening fluid onto the substrate via film splitting. The substrate then passes through an inker station where ink is deposited directly to the substrate for attachment thereto except where rejected by the dampening fluid.
摘要:
A system and method are provided for implementing relatively low temperature joining processes, including displacement/vibration welding techniques and/or heat staking techniques, in a process of building up laminate layers to form and/or manufacture three-dimensional objects, parts and components in additive material (AM) manufacturing systems. A multi-stage 3D object forming scheme is described involving steps of laminate cutting (with lasers or other cutting devices); laminate transport between processing stations (including using one or more of conveyors, robotic pick and place devices and the like); laminate stacking, clamping and adhering through comparatively low temperature welding or other mechanical joining (including displacement/vibration welding or heat staking); and mechanical surface finishing (via CNC machining or other comparable process).