Ink jet printing method

Details Ink jet printing method Ink jet printing method

1994-08-26

1996-10-22

Lund, Valerie A.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

347102, 347105, 106 20D, B41J 2205, B41M 520

Patent

active

055681735

ABSTRACT:
An ink jet printing method is provided which method comprises the steps of:
(1) image-wise protecting by means of an ink jet a liquid, called ink, in the form of droplets onto a receiving material containing at least one reagent A that with at least one reagent B contained in the ink droplets is capable of forming by color reaction a colored product, and
(2) optionally uniformly heating said receiving material and/or uniformly exposing it to chemically active electromagnetic radiation during and/or after the deposition of said ink on said receiving material to start or enhance said color reaction, characterized in that from separate ink jets ink of different concentrations of said at least one reagent B or inks containing separately reagents A or B in different concentration is (are) deposited image-wise onto said receiving material containing said at least one reagent A.

REFERENCES:
patent: 4046074 (1977-09-01), Hochberg et al.
patent: 4554181 (1985-11-01), Cousin et al.
patent: 5380769 (1995-01-01), Titterington et al.
Sambucetti, et al.; Chemical Mist Printing; IBM Technical Disclosure Bulletin; pp. 5423-5424, May 1978.

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