Inkjet recording medium
AssigneeNippon Paper Industries Co., Ltd.
InventorsYoshio Yoshida, Shoichi Endo, Masanori Kawashima, Susumu Hagisawa, Takayuki Fujimoto, Masaya Tosaka, Yuu Suzuki, Kaoru Hamada
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Abstract
An inkjet recording medium obtained by forming a coating layer containing a pigment and a binder on the surface of a base material and coating layer is subsequently pressed onto a heated mirror finished surface to dry to form an ink absorbing layer through a cast coating method, wherein pigment contains a colloidal silica that has a primary particle diameter of from 10 nm to 100 nm while the ratio of the secondary particle diameter to primary particle diameter is from 1.5 to 3.0.
Claims20
An inkjet recording medium obtained by forming a coating layer containing a pigment and a binder on the surface of a base material and said coating layer is subsequently pressed onto a heated mirror finished surface to dry to form an ink absorbing layer through a cast coating method, wherein said pigment contains a colloidal silica that has a primary particle diameter of from 10 nm to 100 nm while the ratio of the secondary particle diameter to said primary particle diameter is from 1.5 to 3.0.
An inkjet recording medium obtained by forming a coating layer containing a pigment and a binder on the surface of a base material, a treatment solution used to coagulate said binder is subsequently applied to said coating layer surface while wet and the coating layer on which said treatment solution is applied is pressed on to a heated mirror finished surface while said coating layer is wet to dry the layer to form an ink absorbing layer, wherein said pigment contains a colloidal silica that has a primary particle diameter of from 10 nm to 100 nm while the ratio of the secondary particle diameter to said primary particle diameter is from 1.5 to 3.0.
Dependencies are inferred from the claim text.