Ink jet recording paper and method of producing it

Details Ink jet recording paper and method of producing it Ink jet recording paper and method of producing it

1993-02-16

1994-06-14

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428206, 428211, 4283044, 428328, 428330, 428331, 428357, 428913, 427288, B32B 900

Patent

active

053208978

ABSTRACT:
An ink jet recording paper ensuring high image qualities and a method of producing the same. The paper has excellent ink receptivity, ink dryness, image density, color reproduction and image brightness. The paper is free from the strike through of Ink. The paper does not produce paper dust which affects the performance of the recording apparatus. The paper comprises a substrate and an ink receptive image-receiving layer thereon, the image-receiving layer being formed by coating or saturating the substrate with an aqueous coating composition, the improvement comprising the substrate satisfying the following two conditions at the same time:
(1) The substrate contains a porous pigment in an amount of 6 to 20% by weight, the pigment having an apparent specific gravity under JIS-K-6220 of 0.10 to 0.50 g/cm.sup.3.
(2) The initial angle of contact .theta. of the surface of the substrate with water is 45.degree. to 100.degree..

REFERENCES:
patent: 4460637 (1984-07-01), Miyamoto et al.
patent: 4902568 (1990-02-01), Morohoshi
patent: 5185213 (1993-02-01), Fujita et al.

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