Ink-jet printing method and method of producing print

B - Operations – Transporting – 41 – J

Patent

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Details

B41J 2/01 (2006.01) B41M 5/52 (2006.01) C09D 11/00 (2006.01) B41M 5/00 (2006.01)

Patent

CA 2118299

Disclosed herein is an ink-jet printing method by ejecting an ink from an orifice of a printing head in accordance with a printing signal to conduct printing on a printing material, comprising using an ink having a pH value (pH A) at which the absorbance of the ink becomes a half of the absorbance at the pH in the stable region of the ink on an absorbance curve according to a pH change and a printing material comprising a base material and a coating layer provided thereon having a surface pH value of pH B, and said pH A and pH B satisfying the relationship~ pH A < pH B.

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