Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1985-01-04
1986-01-28
Tufariello, T. M.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
C25F 304
Patent
active
045669597
ABSTRACT:
In the electrochemical roughening of aluminum or its alloys useful for printing plate supports, an aqueous mixed electrolyte solution is employed, which contains hydrochloric acid (HCl) and, as a further ionic halogen compound, at least one inorganic fluorine compound which is present in the form of an acid or an alkali metal salt and the anion of which contains fluorine and at least one further element (for example, SiF.sub.6.sup.2- or PO.sub.3 F.sup.2-). In particular, the solution contains from about 0.5 to 10% by weight of HCl and from about 0.5 to 5% by weight of the fluorine compound. The very uniformly roughened support materials are used in the production of offset printing plates.
REFERENCES:
patent: 2336846 (1943-12-01), Clark
patent: 2775553 (1956-12-01), Kahan
patent: 3330745 (1967-07-01), Jestl et al.
patent: 3632486 (1972-01-01), Herrmann
patent: 3755116 (1973-08-01), Terai et al.
patent: 3766043 (1973-10-01), Herrmann et al.
patent: 3963594 (1976-06-01), Brasko
patent: 4072589 (1978-02-01), Golda et al.
patent: 4502925 (1985-03-01), Walls
Dowell, A. J., Transactions of the Institute of Metal Finishing, vol. 57, p. 138, 1979.
Hoechst Aktiengesellschaft
Tufariello T. M.
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