INK SOLVENT ASSISTED HEAT SEALABLE MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a method of manufacturing a printing medium which can reduce dye fading and color shift problems by passage of time and can also provide improved resistance to physical handling.

SOLUTION: The method includes the steps of: coating the medium substrate with porous coating composition made of semi-metal oxide or metal oxide particulates to form the porous ink receiving layer; carrying out the coating of the porous ink receiving layer with the latex layer configured to allow an ink-jet to be received at the porous ink receiving layer; printing ink-jet ink on at least a portion of the latex layer to form ink-associated latex regions except non-printed latex regions; and heating the latex layer. The ink-jet ink can include an ink vehicle, a coloring agent and a film-promoting additive which lowers the film forming temperature of latex particulates in the ink-associated latex regions. When heated, the ink-associated latex regions form a continuous film, and non-printed latex regions do not form a continuous film.

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