Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making printing plates
Patent
1996-03-11
1998-06-02
Lesmes, George F.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making printing plates
430331, 430399, 396565, 396626, 210724, 210725, 210454, G03F 700
Patent
active
057597430
ABSTRACT:
It is an object of the present invention to provide a developer-circulating method and an apparatus for carrying out the method in making a flexographic printing plate which prevents dissolved chemical substance from adversely affecting human bodies and has excellent safety; capable of preventing the increase of the viscosity of developer; and capable of effectively preventing the dissolved chemical substance from adhering to the apparatus, thus preventing the life of the apparatus from being reduced and collecting the dissolved chemical substance in a short period of time and which is superior in operation efficiency, work efficiency, and treating efficiency. Solid content of liquid containing resin component which has eluted from flexographic printing plates 3, 42 and dispersed in developer is flocculated by flocculating agent, and the liquid containing the flocculated solid content is separated into the liquid and solid contents. The solid content is discharged and the liquid is re-utilized as the developer. A pH-adjustment may be performed in addition to the flocculation. The pH-adjustment may be carried out after the developer is separated into the solid content and the liquid, without performing the flocculating process.
REFERENCES:
patent: 4239368 (1980-12-01), Krause et al.
patent: 4251374 (1981-02-01), Cunningham
patent: 4284507 (1981-08-01), Beane
patent: 4517282 (1985-05-01), Tomisawa et al.
patent: 4593986 (1986-06-01), Tomisawa et al.
patent: 4796042 (1989-01-01), Mappin et al.
patent: 4841749 (1989-06-01), Cox
patent: 4961859 (1990-10-01), Uehara et al.
patent: 5055870 (1991-10-01), Ohba et al.
patent: 5344744 (1994-09-01), Ueda et al.
Perry's Chemical Engineers' Handbook, Sixth Edition, 1984, edited by Don Green, pp. 19-74 to 19-82, pp. 19-86, pp. 19-107 to 19-109.
Patent Abstracts of Japan, vol. 12, No. 191 (C-501), 3 Jun. 1988.
Muramoto Hisaichi
Umeda Yasushi
Lesmes George F.
Nippon Paint Co. Ltd.
Weiner Laura
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