Title: Imaging media and materials used therein
Application Number: 200480031921 Application Date: 2004.09.13
Publication Number: 1874899 Publication Date: 2006.12.06
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: B41M5/30,G11B7/24,G03C1/73
Applicant(s) Name: Hewlett Packard Development Co. Address:
Inventor(s) Name: Kasperchik Vladek P., Gore Makarand P., Field Mars
Attorney & Agent: guo anxun zhao sulin
Abstract:
     A coating includes an antenna uniformly distributed and dissolved in both a matrix and a leuco dye phase of the coating. The antenna readily absorbs energy, which may be applied in particular patterns to the imaging materials. This absorbed energy heats the mixture, which causes the leuco dye and the activator to mix and react, causing the leuco dye to change color, thus producing a mark. A method for preparing an imaging material includes providing a powder having an activator and an antenna, dissolving the activator/antenna powder to form an activator/matrix pre polymer solution, providing a leuco dye alloy, and dispersing the leuco dye alloy into the activator/matrix pre polymer solution to form a radiation curable paste. An image recording medium includes a matrix having an antenna and an activator, and an alloy dispersed in the matrix as an independent phase. The alloy includes an antenna, a leuco dye, and an accelerator.
Time: 9
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