发明名称 AQUEOUS BRUSH WRITING SHEET
摘要 PROBLEM TO BE SOLVED: To provide an aqueous brush writing sheet which has a property in which an example character can be seen through when mounted on a piece of paper with the example character written thereon under a wet-free condition enables; a wet part is discolored to opaque color when characters are written with an ink brush using water; and the discolored part disappears upon evaporation of water used for writing, which results in restoration of a pre-writing condition.SOLUTION: An aqueous brush writing sheet with an opacity of 30% or less, provided with a discoloration layer at least on one side of a transparent substrate, is characterized in that the discoloration layer contains a water-absorbing resin and a thermoplastic resin, and in that a compounding ratio of the water-absorbing resin and the thermoplastic resin is water-absorbing resin/thermoplastic resin=5-95/95-5 (parts by weight).
申请公布号 JP2014172186(A) 申请公布日期 2014.09.22
申请号 JP20130043705 申请日期 2013.03.06
申请人 NIPPON PAPER PAPYLIA CO LTD 发明人 ISHINO YOSHIAKI
分类号 B43L1/00;B32B7/02;B32B27/20;B42D15/00 主分类号 B43L1/00
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