Abstract:
A process for making a lithographic printing plate that includes in sequence an exposure step of imagewise exposing by means of an infrared laser a lithographic printing plate precursor that has provided above a support a positive-working recording layer including (Component A) a (meth)acrylonitrile-derived monomer unit- and styrene-derived monomer unit-containing copolymer, (Component B) a water-insoluble and alkali-soluble resin, and (Component C) an infrared absorbing agent and a development step of developing, using an aqueous alkali solution including a betaine-based surfactant or a nonionic surfactant, the aqueous alkali solution having a pH of 8.5 to 10.8, by removing an exposed area of the positive-working recording layer whose solubility in aqueous alkali solution has been increased by the exposure. There is also provided a lithographic printing plate made by the process for making a lithographic printing plate.
Abstract:
A positive-working lithographic printing plate precursor for infrared laser is provided that includes, layered sequentially above a support, a lower layer and an upper layer, the lower layer and/or the upper layer including an infrared absorbing agent, either the lower layer comprising an alkali-soluble group-containing graft copolymer or the upper layer comprising a sulfonamide group-, active imide group-, and/or amide group-containing graft copolymer, and the graft copolymer being a polyurethane resin having as a graft chain an ethylenically unsaturated monomer-derived constitutional unit. There is also provided a process for making a lithographic printing plate, the process including in sequence an exposure step of imagewise exposing by means of an infrared laser the positive-working lithographic printing plate precursor for infrared laser and a development step of developing using an aqueous alkali solution with a pH of 8.5 to 10.8.
Abstract:
A negative-working photopolymerization type photosensitive lithographic printing plate precursor capable of conducting image recording with laser, includes: a hydrophilic support; a photopolymerizable photosensitive layer containing (i) a sensitizing dye having an absorption maximum in a wavelength range of from 360 to 450 nm, (ii) a hexaarylbiimidazole compound and (iii) an addition polymerizable compound having an ethylenically unsaturated double bond; and a protective layer, in this order, wherein the protective layer has oxygen permeability at 25° C. under one atmosphere of from 25 ml/m2·day to 200 ml/m2·day.
Abstract translation:能够用激光进行图像记录的负性光聚合型感光性平版印刷版原版,包括:亲水性载体; 含有(i)在360〜450nm的波长范围内具有最大吸收的增感染料的光聚合感光层,(ii)六芳基联咪唑化合物和(iii)具有烯属不饱和双键的加成聚合性化合物; 和保护层,其中保护层在25℃下在25ml / m 2·天至200ml / m 2的一个气氛下具有氧气渗透性, /SUP>.day。
Abstract:
The invention provides an infrared-sensitive positive-working image forming material which provides excellent development latitude, image formability and image region strength, and in which decrease in development property is prevented even when a certain time has passed after pattern exposure until development treatment; an infrared-sensitive positive-working planographic printing plate precursor which is formed from the image forming material and has excellent image formability and image region printing durability; and a method for manufacturing a planographic printing plate using the planographic printing plate precursor. The image forming material includes; on a support, a lower layer containing a polymer having carboxylic acid groups at side chains thereof, at least a part of the carboxylic acid groups forming a salt structure with a monovalent basic compound, and an infrared absorbing agent; and an upper layer whose solubility to aqueous alkaline solution is increased by heat, in this order.
Abstract:
A terminal apparatus is connected to a server apparatus via a network. Active character information capable of specifying an active character is transmitted to the server apparatus. A movement instruction used to move the active character in a virtual space is inputted. Movement information is transmitted to the server apparatus in accordance with the movement instruction. Visible range information capable of specifying all of the player characters each existing in a visible range is received. A display device displays the visible range in which all of the player characters specified by the visible range information are arranged so that the player character that one player of the terminal apparatus causes to participate in the network game can be distinguished from other player character that another player causes to participate in the network game and so that the player can distinguish the active character from non-active characters.