Process for producing a base mould for electrolycally producing seamless rotary screen printing stencils, in particular of nickel
Опубликовано: 29-08-1995
Автор(ы): Hans-Georg Schepers, Karl-Wilhelm Saueressig
Принадлежит: SCHEPERS DRUCKFORMTECHNIK GmbH
Реферат: PCT No. PCT/EP95/00458 Sec. 371 Date Sep. 20, 1996 Sec. 102(e) Date Sep. 20, 1996 PCT Filed Feb. 9, 1995 PCT Pub. No. WO95/21951 PCT Pub. Date Aug. 17, 1995A process for producing a mold for electrolytically producing seamless rotary screen printing stencils is disclosed which includes the steps of: providing a metal mold body having a cylindrical outer surface; covering the outer surface with a sensitive layer such as a photo-sensitive layer, a thermo-sensitive layer or an electrically sensitive layer; exposing predetermined portions of the sensitive layer to a beam which is controlled electronically thereby creating exposed portions of the sensitive layer as well as unexposed portions of the sensitive layer; removing the unexposed portions of the sensitive layer; generating indentations in the metal body at locations where the unexposed portions of the sensitive layer have just been removed; removing the exposed portions of the sensitive layer; and filling the indentations with a non-conductive filler.
Rotary screen printing cylinder
Номер патента: US3783779A. Автор: A Greenwood,R Magee,S Otto. Владелец: Hallmark Cards Inc. Дата публикации: 1974-01-08.