| 摘要 |
PROBLEM TO BE SOLVED: To provide a curtain coating method of photographic printing paper capable of forming a uniform coating film without causing a dripping phenomenon of a coating liquid and capable of enhancing the coating limit speed. SOLUTION: A coating liquid is made to collide with a surface of a continuously running web (support) 3 as a freely falling liquid film (curtain 5) to coat the web 3 with the coating liquid. At this time, surface roughness of edges of the web near parts where ends of the curtain 5 of the coating liquid in the width direction come in contact with the web is made higher than that of the other part. A better effect is produced by applying static electricity to the web surface before or during coating. COPYRIGHT: (C)2004,JPO
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