摘要:
Single coatings onto non-absorbent substrates on which aqueous inkjet inks are jetted with subsequent application of heat or other forms of energy to further cross-link the coating onto the substrate and to fuse the inkjet ink image to give good quality water resistance colored reproductions. Optionally a protective layer is applied on the ink-jet printed image.
摘要:
Water-based mixtures that can be applied to substrates to produce infra-red sensitive layers with hydrophilic surfaces, which may be switched by image-wise exposure in an infrared imaging plate-setter to give oleophilic printing areas, for producing processless offset lithographic printing plates.
摘要:
Improved resolution plates based on hydrophilic organic coated substrates, where a hydrophobic layer is present during inkjet imaging and where after heating to fuse the inkjet image, the hydrophobic layer does not irreversibly fuse into the organic coating, but can be removed by aqueous washing to restore the hydrophilic nature of the plate surface.
摘要:
Method and apparatus for producing an accurately positioned white layer to serve as an undercoat for inkjet process colors imaging on a substrate, by accurately ink jetting a colorless loosely-bonded frame onto the substrate, thereby defining an area to be imaged, ink jetting or spraying a white layer, the white layer at least partially overlapping the frame and covering the area defined by the frame.
摘要:
A plateless process for offset lithographic printing using an inexpensive imaging system and using the surface of a lithographic printing cylinder itself as a plate substrate. The process enables production of a simple and inexpensive offset lithographic printing plate for use in an offset printing system, with the plate being produced by coating the substrate of the printing plate with a photosensitive liquid coating, and sealing the coated substrate with a release coating, coated on a protective film.
摘要:
The gel method of printing variable information of the present invention involves applying inks onto a substrate that is part of or attached to a cylinder of the printing machine. Imaging is by means of an energy source in the UV, visible or infrared regions, modulated to represent a digital image pattern that has been composed on a computer. The consequence of imaging is to gel the ink and increase its adhesion to the substrate of the printing cylinder. The non-gelled background ink with lower adhesion is then removed by a squeegee action and returned to an ink reservoir. The remaining image is transferred to an offset blanket or directly to print stock by pressure. The process does not use a master, but produces an image that is erased after printing with each cylinder rotation so that the next rotation producing the next print can have fresh information written upon it.
摘要:
An inkjet printing method ejects fluid droplets onto a transfer surface. On the transfer surface the droplets are treated. The droplets are then transferred to a substrate. The treatment decreases the sizes of the dots and increases their viscosity. Adjacent dots in the pattern may be printed in separate passes to retain dot integrity. The droplets may comprise UV-curable inks. The droplets may be partially cured by exposure to UV radiation while on the transfer surface.
摘要:
A thermal stencil sheet for use in a laser stencil printing system comprising a stencil sheet comprising a base layer, a radiation absorbing layer, and a thermal film overlying the radiation absorbing layer. The base layer comprises a porous fibrous material which is saturatable with liquid.
摘要:
A lithographic printing member comprises a base material and a coating provided thereon. The coating having one or more layers containing magnetic particles. Printing processes and products are also disclosed.
摘要:
There is disclosed an IR ablateable driographic printing plate (10) including a substrate (12), an IR absorbing layer (14) comprised substantially of a first water based emulsion and a top IR ablatable layer (16) comprised substantially of a second water based emulsion. The term water based is used herein to indicate the precursor materials from which each layer is being deposited are dissolvable in water and not in an organic solvent or solvents.