摘要:
A method for producing a planographic printing plate, including the steps of: image-wise exposing a positive type planographic printing plate precursor including an intermediate layer and a positive type image-forming layer successively on a support, the intermediate layer having a coating amount after drying of from 2 mg/m 2 to 200 mg/m 2 and including a polymer including a repeating unit represented by the following formula (I-1) and a repeating unit represented by the following formula (1-2); and developing the exposed positive type planographic printing plate precursor using a treatment liquid having a pH of from 7 to 12:
摘要翻译:一种平版印刷版的制造方法,包括以下步骤:在载体上依次将包含中间层和正型图像形成层的正型平版印刷版原版成像曝光,所述中间层的涂布量为 干燥为2mg / m 2〜200mg / m 2,包括含有下述式(I-1)表示的重复单元的聚合物和下述式(1-2)表示的重复单元。 并使用pH为7〜12的处理液显影曝光的正型平版印刷版原版;
摘要:
A method of recycling waste liquid from a plate-making process for a photosensitive planographic printing plate that is discharged by a plate-making process for a photosensitive planographic printing plate using a developer liquid for a photosensitive planographic printing plate in an automatic developing machine, includes: replenishing a development bath of the automatic developing machine with a development replenisher liquid without dilution or after dilution of the development replenisher liquid with an amount of water no more than 10 times an amount of the development replenisher liquid in terms of mass, the development replenisher liquid including an organic solvent having a boiling point in a range of from 100°C to 300°C, and a content ratio of organic solvent having a boiling point in a range of from 100°C to 300°C in the development replenisher liquid being in a range of from 5% by mass to 30% by mass; concentrating plate-making process waste liquid, which has been generated during a plate-making process for a photosensitive planographic printing plate in the automatic developing machine, by evaporation using an evaporation concentration apparatus such that a ratio of an amount of the plate-making process waste liquid after the concentrating, to an amount of the plate-making process waste liquid before the concentrating, is in a range of from 1/2.5 to 1/5 in terms of volume, thereby separating the plate-making process waste liquid into water vapor and dissolved components; recovering the separated water vapor from the evaporation concentration apparatus and condensing the water vapor in a cooling means to obtain regenerated water; and using the obtained regenerated water as at least one of diluent water for the development replenisher liquid or rinsing water in the automatic developing machine.
摘要:
A method for processing waste solution in the plate-making process of a photosensitive planographic printing plate, with which the maintenance performance of the equipment is excellent, is provided. A method for processing waste solution in the plate-making process, in which the waste solution in the plate-making process, which is discharged when the plate-making process of a photosensitive planographic printing plate is carried out using a developer for a photosensitive planographic printing plate, said developer being characterized by containing at least one sugar selected from non-reducing sugars and at least one base without containing a silicate and by having a pH within the range of from 9.0 to 13.5, is evaporated and concentrated by an evaporative concentration apparatus, thereby being separated into water vapor and a dissolved component, wherein, the waste solution in the plate-making process is heated by a heating means in an evaporation container that is provided with base resistance, and the water vapor separated from the waste solution in the plate-making process is taken out from the evaporation container and condensed in a cooling means, thereby being turned into reclaimed water.