Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1996-08-19
1998-02-03
Schwartz, Pamela R.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
347 40, 347 54, 347 56, 347105, 347106, 428206, 428211, 428331, 428342, 428409, 4284782, 428521, 4285375, B41M 500, B41J 201, B05D 504
Patent
active
057142351
ABSTRACT:
An ink-jet recording paper sheet for ink-jet recording with on-demand type heads having a multi-nozzle comprises a recording layer formed on one face of a base paper sheet to give a basis weight of the recording paper of from 150 to 250 g/m.sup.2 with a coating color which contains a pigment and a binder, the pigment containing synthetic silica having a BET specific surface area ranging from 250 to 500 m.sup.2 /g at a content of not less than 80% by weight of the pigment, the binder containing casein and styrene-butadiene rubber, the weight ratio of the pigment to the binder ranging from 1.8 to 2.4, the recording layer having coating solid in an amount ranging from 15 to 25 g/m.sup.2, and surface roughness by ten-point-height of the recording layer ranging from 0.5 to 5 .mu.m, and the paper sheet being curled at a maximum curling height ranging from 0 to 20 mm in A4 paper size with the printed face upside. An ink-jet recording method ejects ink droplets by thermo energy from an on-demand type head having a plurality of nozzles onto the recording paper sheet.
REFERENCES:
patent: 4490434 (1984-12-01), Oshima et al.
patent: 4770934 (1988-09-01), Yamasaki et al.
patent: 4892591 (1990-01-01), Ogawa et al.
patent: 5372884 (1994-12-01), Abe et al.
Gu Sono
Kuroyama Yoshihiro
Shimada Teruhisa
Takeuchi Tatsuo
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