Abstract:
A heat-sensitive lithographic printing plate precursor is disclosed, which comprises an aluminum support having provided thereon an ink-receptive layer and a hydrophilic layer containing a colloidal particle oxide or hydroxide of at least one element selected from the group consisting of beryllium, magnesium, aluminum, silicon, titanium, boron, germanium, tin, zirconium, iron, vanadium, antimony and transition metals, wherein at least one layer of the ink-receptive layer and the hydrophilic layer contains a compound capable of converting light into heat, the aluminum support has an anodic oxide film in an amount of 2 g/m2 or more, and the anodic oxide film has been subjected to sealing treatment at a sealing rate of 50% or more.
Abstract translation:公开了一种热敏平版印刷版原版,其包括在其上设置有油墨接受层的铝支撑体和含有选自铍,镁,镁,镁,镁等的至少一种元素的胶体粒子氧化物或氢氧化物的亲水层, 铝,硅,钛,硼,锗,锡,锆,铁,钒,锑和过渡金属,其中至少一层油墨接收层和亲水层含有能够将光转化成热的化合物,铝 支撑体具有2g / m 2以上的阳极氧化膜,阳极氧化膜以50%以上的密封率进行密封处理。
Abstract:
A laser imageable direct write printing member for use with a laser producing laser radiation comprising a flexible sheet of plastic having first and second surfaces serving as a film substrate. A vacuum-deposited laser ablative coating is carried by said first surface formed of a metal selected from a group consisting of titanium, zirconium, aluminum hafnium and alloys thereof.
Abstract:
A presensitized plate having a long press life and excellent resistance to scum and corrosive micro-stains and capable of on-press development is provided. The presensitized plate includes a photosensitive layer containing (A) a sensitizing dye, (B) a polymerization initiator, (C) a polymerizable compound, and (D) a binder polymer; and a protective layer which are formed on a support in this order. The support is prepared from an aluminum alloy plate containing intermetallic compound particles with a circle equivalent diameter of 0.2 μm or more at a surface density of 35,000 pcs/mm2 or more and aluminum carbide particles with a maximum length of 1 μm or more in an amount of up to 30,000 pcs/g.
Abstract:
A lithographic printing plate precursor having excellent printing durability, staining resistance and developability as well as processes for preparing lithographic printing plates therefrom. The lithographic printing plate precursor may comprise a primer layer and an image-recording layer in this order in a substrate, wherein the primer layer comprises a polymer containing a repeat unit having a carbon-carbon backbone, a —C(═O)— group directly attached thereto, a —C(═O)—NR0 — group, a carboxyl group or a salt thereof, and an ethylenically unsaturated bond.
Abstract:
A lithographic printing plate precursor includes a support, and an image-recording layer, the image-recording layer contains a urethane resin having a polyalkylene oxide chain represented by the formula (1) as defined herein in a side chain, an infrared absorbing agent, a radical polymerizable compound and a radical polymerization initiator, and an unexposed area of the image-recording layer is capable of being removed with at least one of dampening water and ink.
Abstract:
Provide is a lithographic printing plate precursors having excellent printing durability, staining resistance and developability as well as processes for preparing lithographic printing plates therefrom.A lithographic printing plate precursor comprising a primer layer and an image-recording layer in this order in a substrate, wherein the primer layer comprises a polymer containing a repeat unit having a carbon-carbon backbone, a —C(═O)— group directly attached thereto, a —C(═O)—NR0— group, a carboxyl group or a salt thereof, and an ethylenically unsaturated bond.
Abstract:
A lithographic printing plate precursor includes an image-recording layer and a protective layer containing a stratiform compound, wherein at least one of the image-recording layer and the protective layer contains a polymer containing as a repeating unit, a structural unit having an ammonium structure.
Abstract:
A lithographic printing plate precursor includes: a support; and an image-recording layer containing (A) a polymerization initiator, (B) a sensitizing dye and (C) a polymerizable compound, and the image-recording layer or an undercoat layer which is optionally provided between the support and the image-recording layer comprises (D) a polymer compound comprising (a1) a repeating unit having a side chain having a structure represented by the following formula (a1-1) and (a2) a repeating unit having a side chain having at least one structure of the formulae (a2-1), (a2-2), (a2-3), (a2-4), (a2-5) and (a2-6) as defined herein.
Abstract:
A lithographic printing plate precursor can be used to prepare a printing plate using thermal ablation. The precursor has a non-thermally ablatable first layer on a substrate. Over the first layer is a thermally ablatable outer layer that includes an IR absorbing compound in an ablatable polymeric binder. The first layer includes a sol gel as a continuous inorganic matrix and a discontinuous inorganic phase (inorganic particles) dispersed therein.
Abstract:
A lithographic printing plate precursor includes a support and a layer containing a polymer compound having at least one support-adsorbing group at a terminal of a main chain.