Ink-jet printing method and method of producing print

Details Ink-jet printing method and method of producing print Ink-jet printing method and method of producing print

1994-10-24

1997-08-26

Lund, Valerie

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

347105, 106 3136, 106 3138, 106 3139, 106 3154, 106 3155, B41J 2205, B41J 2215

Patent

active

056615116

ABSTRACT:
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.sub.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.sub.B, with pH.sub.A and pH.sub.B satisfying the relationship

REFERENCES:
patent: 5220347 (1993-06-01), Fukushima et al.
patent: 5270103 (1993-12-01), Oliver et al.
patent: 5409529 (1995-04-01), Nagashima et al.

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