Ink-jet recording material
AssigneesNippon Paper Industries Co., Ltd., Seiko Epson Corporation
InventorsNoboru Kondo, Teiichi Otani, Atsushi Ono, Hiroyuki Onishi, Masaya Shibatani
Life of this patent
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Abstract
An ink-jet recording material having on at least one surface of a base paper at least one ink-receiving layer comprising pigment and binder, with the ink-receiving layer having a rough texture specified by a surface roughness of at least 9.0 μm when measured with a PARKER PRINT-SURF measurement device (PPS) under a soft packing condition of 5 kgf/cm2, a surface roughness of at least 7.0 μm when measured with PPS under a soft packing condition of 10 kgf/cm2, a center-line average roughness (Ra) of at least 3.0 μm and an Oken-type smoothness of at most 30 seconds, thereby creating an atmosphere of paintings or calligraphic works in the images printed thereon.
Claims18
An ink-jet recording material having on at least one surface of a base paper at least one ink-receiving layer comprising pigment and binder, said ink-receiving layer having surface roughness parameters (a), (b) and (c) specified below and an Oken-type smoothness of at most 30 seconds when determined according to Japan TAPPI No. 5:
- (a) a surface roughness of at least 9.0 μm, measured with a PARKER PRINT-SURF measurement device under a soft packing condition of 5 kgf/cm2 according to ISO 8791-4:1992,
- (b) a surface roughness of at least 7.0 μm, measured with PPS under a soft packing condition of 10 kgf/cm2 according to ISO 8791-4:1992, and
- (c) a center-line average roughness (Ra) of at least 3.0 μm, measured with a stylus-type roughness tester according to JIS B0651.
A method of providing at least one ink-receiving layer comprising pigment and binder on at least one surface of a base paper, comprising forming said at least one ink-receiving layer by coating and drying a coating composition having a solids concentration of at most 25 weight % and a viscosity of at least 1,000 mPa·s when measured with a Brookfield type viscometer according to JIS K7117,
- wherein said at least one ink-receiving layer having surface roughness parameters (a), (b) and (c) specified below and an Oken-type smoothness of at most 30 seconds when determined according to Japan TAPPI No. 5:
- (a) a surface roughness of at least 9.0 μm, measured with a PARKER PRINT-SURF measurement device under a soft packing condition of 5 kgf/cm2 according to ISO 8791-4:1992,
- (b) a surface roughness of at least 7.0 μm, measured with PPS under a soft packing condition of 10 kgf/cm2 according to ISO 8791-4:1992, and
- (c) a center-line average roughness (Ra) of at least 3.0 μm, measured with a stylus-type roughness tester according to JIS B0651.
Dependencies are inferred from the claim text.