METHOD AND APPARATUS FOR PROCESSING OF PHOTOSENSITIVE MATERIAL FOR PRINTING AND ENGRAVING

摘要

PURPOSE:To enable films to be processed to an even density by conveying the photosensitive material in such a manner that its photosensitive layer faces the outer side and producing processing solution flow approximately orthogonally to the conveying direction of said material along its photosensitive layer surface within a processing cell. CONSTITUTION:This comprises enabling the finish of an even density to be obtained at the time of conveying the photosensitive material P perpendicularly and in U-turn in a processing cell 9 in which processing solution is being circulated, wherein feed rollers 1 which are of three-row roller systems of opposing type, are pivotally supported to side plates 5. The photosensitive material P is conveyed by being held between the central feed rollers 1 and outer feed rollers 1 with its photosensitive layer being faced outer side. The central feed rollers 1 in the U-turn sections are made particularly large in diameter to permit gentle U-turning. Through-holes 21 through which the processing solution passes are provided to the side plates 5 and the discharge port 14 and suction port 19 for circulating the processing solution in the liquid pool formed between the racks and the bottom of the processing cell 9 are provided to circulate the processing solution as shown by arrows.