Kao Corporation

Iwatsu Electric Company Ltd.

Kimiya Yamada

Jun Tairadate

Isao Tsuru

Norihiro Yoshida

Tomoaki Il

Keigo Yanagisawa

Hideki Sakai

Toshimi Kanno

Yoshiharu Niizeki

Tomoaki Ii

The present invention relates to an ink-jet printing method using an apparatus including a printing means for ejecting a black ink to a printing substrate to print characters or images on the printing substrate, and a drying means disposed on a downstream side of a transportation direction of the printing substrate, in which the printing substrate is a label printing substrate; the black ink is a water-based composite black ink; the water-based composite black ink contains a composite black pigment containing carbon black, and a content of the carbon black in the composite black pigment is not more than 25% by mass; and the drying means is an infrared heater for heating the water-based composite black ink ejected onto the printing substrate to a temperature of not lower than 95&#xb0; C. and not higher than 125&#xb0; C. According to the ink-jet printing method of the present invention, it is possible to obtain a good printed material that is free of color migration or deformation of a printing substrate even when printed on a label printing substrate.

Ink jet recording method

Printer

Growing community of inventors

Akishima, Japan

Kimiya Yamada