Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1985-07-03
1986-09-30
Tufariello, T. M.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
20412995, C25F 306
Patent
active
046145710
ABSTRACT:
Disclosed is a process and an electrolyte solution for electrochemically roughening steel-based supports for offset printing plates. The treatment is carried out in a hydrochloric acid electrolyte which comprises at least one wetting agent inhibitor. As a result, a uniform surface topography of the plates is achieved, while largely avoiding the formation of scars. The roughened plates are corrosion-resistant and can be coated either directly or indirectly after first treating the plates to render them hydrophilic.
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patent: 4431724 (1984-02-01), Ovchinnikov et al.
Patent Abstracts of Japan, vol. 6, No. 227, C-134, 1105, p. 152 C 134, 11-12-82.
Patent Abstracts of Japan, vol. 5, No. 144 C-71, 816, p. 131 C 71, 9-11-81.
Hoechst Aktiengesellschaft
Tufariello T. M.
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