Ink jet printing paper

Details Ink jet printing paper Ink jet printing paper

2005-08-30

2005-08-30

Shewareged, B. (Department: 1774)

Stock material or miscellaneous articles

Ink jet stock for printing

Particles present in ink receptive layer

C428S032210, C428S032280, C428S032350, C428S032380

Reexamination Certificate

active

06936317

ABSTRACT:
Ink jet printing paper carries a pigment coating comprising (a) a major proportion of a finely divided precipitated calcium carbonate (PCC) having a surface area of at least 60 m2g−1, preferably 80 to 90 m2g−1(b) a minor proportion of a gel-type silica and (c) binder. The silica is preferably present in an amount of 15 to 30% by weight of the total dry weight of silica and PCC. The pigment coating is preferably made up as an aqueous composition having a solids content of 25 to 35% and a Brookfield viscosity of 150 to 2000 mPa s and applied by a blade coating technique.

REFERENCES:
patent: 4542059 (1985-09-01), Toganoh et al.
patent: 6414065 (2002-07-01), Boylan
patent: 6485812 (2002-11-01), Sekiguchi
patent: 0411638 (1994-02-01), None
patent: 0582466 (1994-02-01), None
patent: 0938980 (1999-09-01), None
patent: 2316890 (1998-03-01), None
patent: WO96/29369 (1999-09-01), None
patent: WO01/34906 (2001-05-01), None
Specialty Minerals, Inc. “Performance Minerals for Ink Jet Papers”, 1998.
Grace Davison, a division of W.R. Grace & Co., “Silicas in Ink Receptive Coatings”.

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