摘要:
An image forming method in which a planographic printing plate precursor having, on a support, an image recording layer containing (A) a polymerization initiator, (B) a polymerizable compound, and (C) a binder polymer, and having photosensitivity in a wavelength range of 250 nm to 420 nm, is subjected to exposure using laser light in the wavelength range of 250 nm to 420 nm, and a one-pixel drawing time is one millisecond or less, a planographic printing plate precursor having the image recording layer which further contains (D) a compound having a polymerizable group and a support adsorptive group, or (F) a filler, and a planographic printing method including development-on-machine, are provided.
摘要:
The invention provides an image recording method and a lithographic printing method in which both high image quality and good fine line reproducibility can be achieved, and high sensitivity and safety under white light can be obtained, and the image recording method for a lithographic printing plate, which comprises imagewise exposing with an imaging time per pixel of 1 millisecond or less using a laser light with an emission wavelength of from 250 nm to 420 nm, wherein the lithographic printing plate precursor comprises a support and an image recording layer, in which the image recording layer contains (A) a polymerization initiator and (B) a polymeric compound and has an image recording layer which is photosensitive in a wavelength of from 250 nm to 420 nm, and the support has an anodized film with sealed micropores on the surface; and a lithographic printing method utilizing the same.
摘要:
A lithographic printing plate precursor comprises an image-forming layer containing a polymerization initiator and a polymerizable compound, and a hydrophilic support, wherein the lithographic printing plate precursor comprises a compound containing at least one functional group having an interaction with a surface of the hydrophilic support.
摘要:
A lithographic printing plate precursor comprising: a support; and a photosensitive layer containing (A) a sensitizing dye represented by the formula (I) as defined herein, (B) a polymerization initiator, (C) a polymerizable compound, and (D) a binder polymer having a crosslinkable group.
摘要:
A heat-sensitive lithographic printing plate of the present invention, which enables image recording by infrared-ray scanning exposure based on digital data and has excellent on-press developability, high resistance to scumming and a long press life, the heat-sensitive lithographic printing plate having on a support with a hydrophilic surface an image-forming layer made up of microcapsules in which a reactive group-containing hydrophobic compound is enclosed, a light-to-heat converting agent and a water-soluble compound which has a reactive group capable of reacting with the hydrophobic compound and is situated outside the microcapsules.
摘要:
An on-press developable heat-sensitive lithographic printing plate precursor comprising: a support having a water-wettable surface; and an image forming layer, wherein the image forming layer comprises microcapsules containing a lipophilic compound and one of a leuco dye which forms a color by an action of an acid and a dye which reduces the maximum absorption intensity in a visible region by an action of an acid, an acid generator capable of generating an acid on heat application, and a light-heat converting substance.
摘要:
An on-press development or non-processing (non-development) type lithographic printing plate precursor capable of giving a printout image having a large lightness difference, and a lithographic printing method using this lithographic printing plate precursor are provided, a lithographic printing plate precursor comprising a support and a photosensitive-thermosensitive layer capable of recording an image by infrared laser exposure, the lithographic printing plate precursor being capable of performing a printing by loading on a printing press without passing through a development processing step after recording an image, or by recording an image after loading on a printing press, wherein said photosensitive-thermosensitive layer comprises (1) an infrared absorbent and (2) a discoloring agent or discoloration system capable of generating a color change upon exposure; and the lithographic printing method performing a printing using the above-described lithographic printing plate precursor.
摘要:
A method for forming an image on a planographic printing plate precursor including a substrate and an image recording layer disposed thereon, the layer including a hydrophobic precursor and a light-to-heat converting agent. The method includes an image exposing process of exposing the planographic printing plate precursor to infrared radiation to form an image on the image recording layer of the planographic printing plate precursor, and a post-heating process of heating the planographic printing plate precursor to a predetermined heating temperature.
摘要:
A lithographic printing plate precursor comprises an image-forming layer containing a polymerization initiator and a polymerizable compound, and a hydrophilic support, wherein the lithographic printing plate precursor comprises a compound containing at least one functional group having an interaction with a surface of the hydrophilic support.
摘要:
A waterless planographic printing plate precursor on which laser writing is possible, which has excellent scratch resistance and solvent resistance, and which also has excellent image reproducibility. The waterless planographic printing plate precursor includes a substrate on which are superposed in the following order a light-to-heat conversion layer containing a compound for converting laser light to heat, and a silicone rubber layer, wherein the light-to-heat conversion layer contains a reaction product of a metallic chelate compound such as titanium diisopropoxide bis (2,4-pentadionate) and/or a self-condensation product of a metallic chelate compound.