Method of Modifying the Printing Surface of Paper or Board
AssigneeHelsinki University of Technology
InventorsJukka Seppala, Arto Salminen
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Abstract
A method of modifying the surface of a substrate which comprises a fibrous material. According to the present invention, the surface is brought into contact with a type of amphiphilic block copolymer which comprises one or several hydrophilic polymeric blocks and one or several hydrophobic polymeric blocks. Approximately 0.01-3 g/m2 of the amphiphilic block copolymer are applied onto the surface. With the help of the present invention, it is possible to effectively modify the surface of paper in such a manner that it produces a good surface for printing, for instance for ink-jet printing.
Claims19
A method of treating the surface of a substrate which comprises a fibrous material for modifying the printability properties of said surface, characterized by contacting the surface with an amphiphilic block copolymer which comprises one or several hydrophilic polymer blocks and one or several hydrophobic polymer blocks.
An amphiphilic block copolymer which comprises polyethylene oxide blocks in the form of water-soluble blocks and octadecenyl succinic acid units in the form of water-insoluble blocks.
Dependencies are inferred from the claim text.