TREATING METHOD DEVICE FOR PHOTOSENSITIVE PLANOGRAPHIC PRINTING PLATE
PURPOSE:To provide a treating method and a device for a photosensitive planographic printing plate by which development can be always stably and rapidly done, the amt. of a development replenisher can be easily controlled, and the frequency for exchanging liquids is small, and the consumed amt. of t...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PURPOSE:To provide a treating method and a device for a photosensitive planographic printing plate by which development can be always stably and rapidly done, the amt. of a development replenisher can be easily controlled, and the frequency for exchanging liquids is small, and the consumed amt. of the developer is little. CONSTITUTION:A photosensitive planographic printing plate S is automatically carried in an automatic developing machine while an alkali developer substantially not used is supplied on the printing plate for development, and further, the plate is subjected to dip development. When the plate is dipped for development, a promoting means (rubbing with shower 24 in a liquid, brush 26, and sponge or circulating the developer) is used. Further, a developer substantially not used is supllied in misty state on the plate. |
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