Paper material dryer

A method of drying polyethylene laminated base photographic sheet material bearing a silver or dye image in a gelatin layer on one side of the material, so as to produce a high degree of gloss on the image side of the material, said method comprising:

• providing sheets of polyethylene laminated base photographic material having on one side thereof a silver or dye image in a gelatin layer;
• providing at least one indentation on line on the image surface of at least one said sheet of photographic material;
• drying said at least one said sheet of photographic material, said drying comprising passing said at least one sheet through an enclosed drying chamber, directing radiant heat onto both sides of said at least one sheet of photographic material, and simultaneously causing a stream of cool air to flow over the image side of said at least one sheet of photographic material;
• continuing said drying until said at least one indentation line has disappeared;
• determining the drying time required to cause said at least one indentation line to disappear;
• and
• then drying similar sheets of photographic material in the same way for at least the thus determined drying time.

A method of drying polyethylene laminated base photographic paper bearing a silver or dye image in a gelatin layer on one side of the paper, so as to produce a high degree of gloss on the image side of the paper, said method comprising:

• providing polyethylene laminated base photographic paper having on one side thereof a silver or dye image in a gelatin layer;
• passing said photographic paper through an enclosed drying chamber;
• directing radiant heat onto both sides of said photographic paper for a time sufficient to cause any shallow indentation lines on said image side of said photographic paper to disappear;
• and
• simultaneously causing a stream of cool air to flow over the image side of said photographic paper, thereby drying said photographic paper and producing a photographically satisfactory high degree of gloss on said image side.