76results about How to "Improve the running force" patented technology

The invention discloses positive image thermo-sensitive CTP printing plate material capable of resisting UV printing ink. The positive image thermo-sensitive CTP printing plate material made by high-quality aluminum plate base and double coatings comprises a plate material support body. A resin layer good in solvent resistance and alkaline solubility coats the support body. A positive image thermo-sensitive photosensitive layer coats the resin layer. The main film forming resin also called polymer binder in the resin layer is independently researched and developed by the inventor company, and the photosensitive layer is modified by traditional single-layer thermo-sensitive CTP of the inventor company. The plate material is high in photosensitivity, excellent in screen dot reduction, large in plate making operation tolerance, stable in performance and high in printing adaptability. The plate material can be specially used for UV ink printing and also be used as the long-printing-process plate material of traditional solvent ink printing, and better printing durability is achieved when the plate material is applicable to the mentioned printing after baking.

The invention relates to an original edition of a lithograph plate, and the original edition comprises an image recording layer and a substrate, wherein the image recording layer includes an infrared absorber, an energy initiation cross-linking and / or polymerization initiator and a cross-linkable and / or polymerization multi-polymer, the image recording layer is the single-layer hydrophilic and oleophylic mixture, and the contact angle of the mixture with the water drop in air is less than or equal to 10 degrees. Through the original edition of the lithograph plate, the intensity and anti-chemical property of the image part can be greatly improved, thereby improving durability and achieving the excellent developing effect and durability.

The invention relates to a processing method of a high pressrun printing plate, comprising: setting a photosensitive layer on a surface of a lipophilic substrate layer, irradiating the photosensitive layer with laser, to make the lipophilic substrate layer of the parts irradiated by the laser to be exposed after development; and then setting a metal hydrophilic layer on the exposed part of the lipophilic substrate layer, removing the residual photosensitive layer, and completing the process after maintaining and cutting. The process method has characteristics of simple preparation process, low environment pollution, high product quality and high pressrun of the obtained printing plate. Furthermore, a printing plate material can be formed by pre-setting the photosensitive layer on the surface of the lipophilic substate layer. By mass production of the printing plate material, making efficiency of the printing plate is higher, and quality is more stable.

The invention discloses a water-based ink printing plate material and a preparation method for the same. The printing plate material structurally comprises a plate base, an ink-repulsive layer and an image-text layer from bottom to top, wherein the ink-repulsive layer is made from fluorinated polysiloxane nano-composite material and coated on the plate base via a spinning way with coating amount of 2.4 to 3.9g.m-2; the ink-repulsive layer is achieved when the fluorinated polysiloxane nano-composite material is solidified for 10 to 30 minutes at the temperature of 120 to 200 DEG C; and the image-text layer is achieved when ink is sprayed on the ink-repulsive layer with spraying amount of 0.8 to 2.5g.m-2 and solidified for 10 to 30 minutes at the temperature of 120 to 200 DEG C. A traditional planographic printing method is broken through and a water-oil mutual-exclusive principle is employed; an image-text area with hydrophic ink and a non-image-text area with water-repellent area are constructed on a planographic printing surface; and a technical scheme of traditional planographic printing material having to employing water or similar "fountain solution" to occupy a blank area can be avoided. With only water-ink (without of water or other fountain solution), water-based ink image-text area and non-water-based ink blank area can be separated on the plate material surface; and printing patterns can be formed when transferred to a printing material surface.

The invention discloses a cationic polymerization imaging photosensitive composition for a photosensitive layer of a negative image high-sensitive photopolymerization plate for lithographic printing and belongs to the technical field of optical information recording materials. The cationic polymerization imaging composition contains a photosensitive monomer with silicon vinyl ether, film-forming resin, cationic photoinitiator, coloring background dye, and solvent. As the cationic polymerization imaging composition with the cationic polymerization photosensitive monomer is free of radical polymerization, the protection of a protective layer is not required; and as the photosensitive layer of the negative image high-sensitive photopolymerization plate, which has high sensitivity and pressrun, and good resolution factor, can be made by using the cationic polymerization imaging composition, a negative image violet laser CTP plate can be made.

The invention provides an imaging liquid for a thermosensitive CTP (cytidine triphosphate) plate, which comprises the following components by weight: the solute of the imaging liquid comprising 75-90 parts of film forming resin, 2-5 parts of infrared dye, 5-10 parts of acid production agent, 2-6 parts of cross-linking agent, 1-2 parts of surface active agent, and 2-5 parts of background coloring dye solvent, and the imaging liquid with the weight ratio of the solute to the solvent being (10-15) to (85-90); and the acid production agent is polyamide. According to the imaging liquid, after components in the imaging liquid such as the acid production agent and the like are improved and on the basis that the imaging effect is ensured, the pressrun of the imaging liquid is effectively improved, and the production cost is greatly saved, therefore, the imaging liquid provided for the thermosensitive CTP plate has good application value.