A method for making a lithographic printing plate support
A method for making a lithographic printing plate support including the steps of: - providing an aluminum support; - graining said support in a graining electrolyte solution; - treating the grained support in a desmut electrolyte solution containing hydrochloric acid by applying a direct current res...
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| Hauptverfasser: | , |
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | A method for making a lithographic printing plate support including the steps of:
- providing an aluminum support;
- graining said support in a graining electrolyte solution;
- treating the grained support in a desmut electrolyte solution containing hydrochloric acid by applying a direct current resulting in a charge density Q; characterized in that the desmut electrolyte solution has a pH < 1 and that Q is at least 400 C/dm 2 . |
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