Invention Grant
- Patent Title: Inkjet recording medium and inkjet recording method
- Patent Title (中): 喷墨记录介质和喷墨记录方法
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Application No.: US12740894Application Date: 2008-10-30
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Publication No.: US08399076B2Publication Date: 2013-03-19
- Inventor: Taichi Watanabe , Yuji Sawa , Kei Takigawa , Naoya Morohoshi , Kiyofumi Nagai
- Applicant: Taichi Watanabe , Yuji Sawa , Kei Takigawa , Naoya Morohoshi , Kiyofumi Nagai
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Nippon Paper Industries Co., Ltd.,Ricoh Company, Ltd.
- Current Assignee: Nippon Paper Industries Co., Ltd.,Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Jenkins, Wilson, Taylor & Hunt, P.A.
- Priority: JP2007-282836 20071031
- International Application: PCT/JP2008/069746 WO 20081030
- International Announcement: WO2009/057690 WO 20090507
- Main IPC: B41J2/015
- IPC: B41J2/015 ; B41M5/40

Abstract:
An ink jet recording medium having an ink receiving layer containing a binder which containing an acrylonitrile butadiene type copolymer, the butadiene concentration of the copolymer is 50 weight % or more, and an inorganic pigment on one or two sides of a base paper mainly composed of wood pulp, wherein the concentration ratio of the acrylonitrile butadiene type copolymer to 100 parts by weight of the inorganic pigment is from one part by weight to eight parts by weight, while 60 weight % or more of the inorganic pigment is kaolin with particles of 0.4 μm or more and below 4.2 μm which account for 64% or more as the cumulative value of the volumetric basis when measured using a laser diffraction method, and the surface roughness of the ink receiving layer is from 0.6 μm to 1.4 μm when a hard backing is used at a clamp pressure of 1,000 kPa according to JIS P8151.
Public/Granted literature
- US20100277541A1 INKJET RECORDING MEDIUM AND INKJET RECORDING METHOD Public/Granted day:2010-11-04
Information query
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