Ink jet recording media and method for their production

Details Ink jet recording media and method for their production Ink jet recording media and method for their production

2005-03-15

2005-03-15

Cameron, Erma (Department: 1762)

Coating processes

With post-treatment of coating or coating material

Heating or drying

Reexamination Certificate

active

06866895

ABSTRACT:
An image recording medium for an ink jet printer comprises(a) a sheet of solvent absorbing microporous material which comprises a matrix of substantially water insoluble thermoplastic organic polymer, finely divided substantially water insoluble filler particles of which at least 50% by weight are siliceous particles said filler particles being distributed throughout the matrix and constituting from 40 to 90% by weight of said micorporous material, there being a network of interconnecting pores communicating substantially throughout said microporous material said pores constituting from 35 to 95% by volume of said microporous material, said sheet of microporous material having (b) a coating of a polyester. The polyester can be a condensation product obtained from dicarboxylic acids and glycols and contains sufficient hydrophilic groups such as sulphonate to make it water dispersible. The ink jet recording medium can be made by coating a sheet of the microporous material with an aqueous dispersion of a polyester resin and allowing the coated sheet to dry.

REFERENCES:
patent: 5326391 (1994-07-01), Anderson et al.
patent: 5605750 (1997-02-01), Romano et al.
patent: 20010023014 (2001-09-01), Patel et al.
patent: 1072430 (2001-01-01), None
patent: 2001 - 115620 (2001-06-01), None
patent: WO 01 53107 (2001-07-01), None
patent: WO 01 89824 (2001-11-01), None
Salsman, Paper Age, 114(7), pp 18-19, Jul. 1998.

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