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1. (WO2002007984) MICROPOROUS INK JET RECORDING MATERIAL

Pub. No.:    WO/2002/007984    International Application No.:    PCT/US2001/023193
Publication Date: Jan 31, 2002 International Filing Date: Jul 23, 2001
IPC: B41M 5/00
B41M 5/52
Applicants: SKC AMERICA, INC.
ZHONG, Qiping
CHEN, Huiyong, P.
TANCK, Elinor
NISHINO, Akio
CHAI, Chul
Inventors: ZHONG, Qiping
CHEN, Huiyong, P.
TANCK, Elinor
NISHINO, Akio
CHAI, Chul
Title: MICROPOROUS INK JET RECORDING MATERIAL
Abstract:
Disclosed is a printing medium useful for inkjet printing and provides opacity for either with or without back light applications. A printing medium made in accordance with the present invention includes a substrate, a first coating layer disposed on the substrate, and a second coating layer disposed on the second substrate. The second substrate has a microporous structure and comprises at least one hydrophobic polymer and at least one liquid absorbing filler dispersed substantially throughout the at least one hydrophobic polymer. In an other aspect of the present invention, the printing medium has an ink retaining first coating layer and an ink transmissive second coating layer formed of at least one hydrophobic polymer and at least one liquid absorbing filler. The first and second coating layers are respectively disposed on a substrate.Yet, in another aspect of the present invention, the printing medium has a substrate comprised of an organic transparent or translucent material, a first coating layer upon said substrate, and a second coating layer upon said first coating layer. The first coating layer employs at least one hydrophilic polymer. The second coating layer has a microporous structure formed by the combination of at least one liquid absorbing, inorganic filler incorporated into at least one organic, hydrophobic polymer.