Ink jet printing process for desensitizing carbonless paper

Details Ink jet printing process for desensitizing carbonless paper Ink jet printing process for desensitizing carbonless paper

1993-06-16

1999-03-09

Schwartz, Pamela R.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Method of use, kit, or combined with marking instrument or...

347 56, 347 98, 347105, 427152, 503205, 503206, B41M 5128

Patent

active

058800620

ABSTRACT:
Disclosed is a printing process which comprises (a) incorporating into a printing apparatus capable of generating ink jet images a carbonless paper set comprising a first sheet, a second sheet, and optional intermediate sheets situated between the first sheet and second sheet, wherein the first sheet comprises paper coated on one surface with a color former and the second sheet comprises paper coated on one surface with a color developer, and wherein, when the carbonless paper set is assembled, the surface of the first sheet coated with the color former is in contact with the surface of a sheet coated with the color developer and the surface of the second sheet coated with the color developer is in contact with the surface of a sheet coated with the color former; (b) incorporating into the printing apparatus an ink jet ink comprising water, an organic component, and a desensitizing agent capable of interacting either (i) with the color former so that the color former's subsequent ability to interact with the color developer is reduced, or (ii) with the color developer so that the color developer's subsequent ability to interact with the color former is reduced; and (c) causing droplets of the ink containing the desensitizing agent to be ejected in an imagewise pattern onto either (i) at least one surface of one sheet coated with the color former, or (ii) at least one surface of one sheet coated with the color developer.

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