Printing medium, and ink-jet printing process and image-forming process using the same
AssigneeCanon Kabushiki Kaisha
InventorsMifune Hirose, Mamoru Sakaki, Masato Katayama, Masahiko Higuma, Kenichi Moriya, Yuko Nishioka
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Abstract
Disclosed herein is a printing medium, comprising a liquid-absorbent base material, an ink-receiving layer provided on the base material, which comprises a pigment, a binder and a cationic substance, and a surface layer provided on the ink-receiving layer composed principally of cationic ultrafine particles as inorganic particles.
Claims51
A printing medium, comprising a liquid-absorbent base material, an ink-receiving layer provided on the base material, which comprises a pigment, a binder and a cationic substance, and a surface layer of cationic ultrafine inorganic particles having a particle diameter ranging from 1 nm to 500 nm, said particles being particles of aluminum hydrate, or particles of silica the surface of which has been cationized with an organic substance, provided on the ink-receiving layer, the surface layer having a 75° specular glossiness of 45% or higher,
- wherein the cationic substance is contained in the ink-receiving layer in a range of 0.01 to 7 g/m2, and
- the liquid-absorbent base material has a Stöckigt sizing degree in a range of 0 to 15 seconds.
A printing medium, comprising a liquid-absorbent paper substrate, which substrate comprises fibrous pulp and a filler and is made nonswelling, an ink-receiving layer provided on the paper substrate, which comprises a pigment, a binder and a cationic substance, and a surface layer of cationic ultrafine inorganic particles having a particle diameter ranging from 1 nm to 500 nm, said particles being particles of aluminum hydrate, or particles of silica the surface of which has been cationized with an organic substance, provided on the ink-receiving layer, the surface layer having a 75° specular glossiness of 45% or higher,
- wherein the cationic substance is contained in the ink-receiving layer in a range of 0.01 to 7 g/m2, and
- the liquid-absorbent paper substrate has a Stöckigt sizing degree in a range of 0 to 15 seconds.
Dependencies are inferred from the claim text.