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AssigneesNippon Paper Industries Co., Ltd., Nippon Paper Papylia Co., Ltd.
InventorsJunpei Natsui, Akihito Ogino, Hiroki Midorikawa, Yoshiaki Ishino, Yoshiteru Kanomata
Estimating the term…
A coating paper which can be removed by water comprising a substrate paper of single layer or lamellar structure having two or more layers which has at least one water decaying layer containing 5-100 wt % of water insoluble fibrous carboxy alkyl cellulose and a water base color is coated on said substrate paper, wherein a coating layer and at least a part of substrate paper which is a supporter of said coating layer has a characteristic of easily removing, dispersion and dissolving by contact with water, and can provide a water decaying coating paper used preferably for an use of label for a returnable container which may easily remove by contact with water and excellent in printing aptitude and a method for preparation thereof can be provided.
A coating paper which can be removed by water, comprising a substrate paper of single layer or of lamellar structure having two or more layers which has at least one water decaying layer containing 5-100 wt % of water insoluble fibrous carboxy alkyl cellulose and at least one layer of water base color coated on said substrate paper, further comprising said substrate paper contains an alkalizing agent.
A method for preparation of a coating paper which can be removed by water, comprising, coating a water base color on one surface of a substrate paper of single layer or of lamellar structure having two or more layers which has at least one water decaying layer containing 5-100 wt % of water insoluble fibrous carboxy alkyl cellulose, then impregnating an alkalizing agent from a non-coating surface.
Dependencies are inferred from the claim text.