Ink-jet recording sheet

Details Ink-jet recording sheet Ink-jet recording sheet

2005-06-21

2005-06-21

Schwartz, Pamela R. (Department: 1774)

Stock material or miscellaneous articles

Ink jet stock for printing

Plural ink receptive layers

C428S032300, C428S032340, C428S032370

Reexamination Certificate

active

06908648

ABSTRACT:
An ink-jet recording sheet containing a support having the following layers in the order: (a) a porous layer; and (b) a surface porous layer containing an organic particle A or an organic particle B, the organic particle A being insoluble in water and soluble in or swollen in a water soluble organic solvent having a SP value of 18.41 to 30.69 (MPa)1/2and a boiling point of not less than 120° C.; the organic particle B comprising a copolymer having a specific recurring unit in an amount of not less than 5 weight % based on the total weight of the copolymer; the organic particle A and the organic particle B each having an average particle size of not more than 100 nm and a glass transition temperature of not less than 70° C., wherein the porous layer or the surface porous layer contains a compound having a polyvalent metal element.

REFERENCES:
patent: 6114020 (2000-09-01), Misuda et al.
patent: 2003/0104177 (2003-06-01), Kasahara
patent: 0 286 427 (1988-10-01), None
patent: 1016542 (2000-07-01), None
patent: 1 211 088 (2002-06-01), None
patent: 2003-335049 (2003-11-01), None
Patent Abstracts of Japan, vol. 0122, No. 82 (M-726), Aug. 3, 1988 of JP 63 060784 A (Fuji Photo Film Co., Ltd.) Mar. 16, 1988.

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