Patent ID: 10155400

Abstract:
A printing apparatus and a printing method that can reduce a difference in glossiness in an in-plane direction of a printed matter to which aqueous varnish has been applied. The apparatus and method satisfy a relationship of “Tp−(40/6)×tw≤a” when the temperature of a recording surface at the time of application of aqueous varnish containing water is denoted by Tp, coating formation time of the aqueous varnish is denoted by tw, and a constant determined according to an allowable value of a gloss difference, which is a difference between glossiness of the recording surface of a printed matter of which applied aqueous varnish has been dried in a first direction and glossiness of the recording surface in a direction orthogonal to the first direction, is denoted by a. Here, the unit of the temperature Tp is ° C. and the unit of the coating formation time tw is minute.