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Machine translation
1. (WO1981002547) METHOD FOR MANUFACTURING A BASE MATERIAL FOR AN OFFSET PRINTING PLATE,BASE MATERIAL PRODUCED ACCORDING TO SUCH METHOD AND IMPLEMENTATION OF SAID METHOD FOR MANUFACTURING AN OFFSET PRINTING PLATE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/002547    International Application No.:    PCT/AT1981/000004
Publication Date: 17.09.1981 International Filing Date: 11.03.1981
IPC:
B41N 3/03 (2006.01), B41N 3/04 (2006.01), G03F 7/07 (2006.01)
Applicants:
Inventors:
Priority Data:
1332/80 11.03.1980 AT
Title (EN) METHOD FOR MANUFACTURING A BASE MATERIAL FOR AN OFFSET PRINTING PLATE,BASE MATERIAL PRODUCED ACCORDING TO SUCH METHOD AND IMPLEMENTATION OF SAID METHOD FOR MANUFACTURING AN OFFSET PRINTING PLATE
(FR) PROCEDE DE FABRICATION DE MATIERE DE BASE POUR PLAQUE D"IMPRESSION OFFSET, MATIERE DE BASE FABRIQUEE SELON CE PROCEDE ET APPLICATION DE CE PROCEDE POUR LA FABRICATION DE PLAQUES D"IMPRESSION OFFSET
Abstract: front page image
(EN)For the production of a base material intended to the manufacture of an onset printing plate according to the method of diffusion of silver salts, at least one upper surface of an aluminum strip is provided with some rugosity by means of a cylinder having an appropriate surface, thereafter an aluminum oxyde layer is deposited by anodization. The rugosity of the upper surface is preferably obtained by means of a cylinder by lamination of the aluminum strip at its final thickness. The base material thus obtained, of which the aluminum oxyde layer has a weight of 0.2 to 2.0 grammes per square meter, but preferably 1.0 to 1.5 grammes per square meter and of which the surface rugosity exhibits mean values from 0.05 to 1.0 microns and mean depressions from 0.4 to 10 microns, gives, after applying the process for the diffusion of silver salts, onset printing plates which provide for a high printing quality and a long resistance life.
(FR)Pour la fabrication d"une matiere de base destinee a la fabrication d"une plaque d"impression offset selon le procede de diffusion des sels d"argent, on donne a au moins une surface superieure d"une bande d"aluminium, au moyen d"un cylindre muni d"une surface appropriee, une certaine rugosite apres quoi l"on depose une couche d"oxyde d"aluminium par anodisation. On obtient de preference la rugosite de la surface superieure au moyen d"un cylindre par laminage de la bande d"aluminium sur son epaisseur finale. La matiere de base ainsi obtenue, dont la couche d"oxyde d"aluminium a un poids de 0,2 a 2,0 grammes par metre carre mais de preference de 1,0 a 1,5 grammes par metre carre et dont la rugosite de surface presente des valeurs moyennes de 0,05 a 1,0 microns et des depressions moyennes de 0,4 a 10 microns, donne, apres application du procede de diffusion des sels d"argent, des plaques d"impression offset qui garantissent une haute qualite d"impression et une longue duree de resistance.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)