Ink jet printing device and method for braille, raised print, and regular print applications

Abstract

Provided is an ink jet printing device comprising: an ink jet print head and a print region surface toward which ink is jetted from the ink jet print head, wherein a height distance between the ink jet print head and the print region surface is adjustable; wherein the ink jet print head jets an ultra-violet curable phase change ink composition comprising an optional colorant and a phase change inkvehicle comprising a radiation curable monomer or prepolymer; a photoinitiator; a reactive wax; and a gellant; and wherein a print deposited upon the print region surface is Braille, raised print, ora combination of regular print and one or both Braille and raised print.

Description

technical field [0001] Disclosed herein is a UV curable gellant ink for inkjet printing on a substrate in Braille, raised print, regular print, or a combination thereof. Also described is a method of forming an image comprising Braille, raised print, regular print, or a combination thereof using the UV-curable gellant ink. Background technique [0002] Filed 20 December 2006 titled "Tactile Security Features for Document Authentication and Signature Authentication" by Peter M. Kazmaier, Hadi K. Mahabadi, Paul F. Smith, Chris A. Wagner, Gabriel Iftime, and Tyler B. Commonly assigned, co-pending U.S. Patent Application 11 / 613,759 to Norsten, the entire contents of which are incorporated herein by reference, describes in embodiments a system and method for generating an authentication mark on a recording medium by Identification material is deposited onto the media in the image area to generate an identification material image and to generate a identification material authenti...

AI Technical Summary

Problems solved by technology

In addition, the embossing machine is a very noisy machine and requires a soundproof room

Thermally expandable paper is also very expensive, typically over $1.00 per sheet, requires a complex and slow two-step printing process, and is limited to plastic-like specialized substrates

[0010] There is also a need for raised text printing incorporating Braille letters that cannot be achieved with the prior art

For example, Braille expressions for mathematical and chemical equations and financial formulas are extremely large and cumbersome

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