SEEDING

Refers to an ink or varnish that develops a grainy or lumpy appearance in the can over time. Seeding can look bad but seldom translates to a printing problem because it smoothes-out so easily in the roller train. Re-milling the ink also smoothes-out seeding, but it will return again with time. Seeding is somewhat rare, but results from chemical and/or biological reactions to certain temperature, humidity, and storage conditions.