1. A photomechanical printing process in which a gelatin-coated plate is exposed to light through a photographic negative, then inked and printed to produce high-quality reproductions.
Usage: technical; printing industry; also called collotype or photogel

Examples

• The museum used collotypy to reproduce the delicate watercolor paintings without loss of detail.
• Collotypy was popular in the late 19th and early 20th centuries for producing fine art prints.
• The process of collotypy requires careful control of moisture and temperature during printing.
• Art historians appreciate collotypy reproductions for their ability to capture subtle color gradations.