Recording medium
AssigneeCanon Kabushiki Kaisha
InventorsMamoru Sakaki, Tomomi Nakatsugawa, Hiroshi Sato
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Abstract
A recording medium comprises a substrate, and an ink-receiving layer provided thereon wherein the ink receiving layer contains water-insoluble and amorphous basic aluminum salt. The recording medium according to claim 1, the basic aluminum salt is represented by the general formula (1) below: Al.sub.x (OH).sub.y X.sub.z (1) where x, y, and z are respectively positive integers and satisfy the relations of z=3x-y, and x/z.gtoreq.3, and X is an acid radical.
Claims9
A recording medium comprising a substrate, and an ink-receiving layer provided thereon, said ink-receiving layer being a layer manually comprising a pigment, and said ink-receiving layer containing a water-insoluble and amorphous basic aluminum salt, wherein the amount of the basic aluminum salt is in a range of from 5 to 35 parts by weight per 100 parts by weight of pigment in the ink-receiving layer, and wherein the basic aluminum salt is represented by the general formula (1) below:
- Al.sub.x (OH).sub.y X.sub.z ( 1)
- where x, y and z are respectively positive integers and satisfy the relations of z=3x-y, and x/z.gtoreq.3, and X is an acid radical.
A recording medium comprising a base paper and a pigment layer provided thereon, said pigment layer containing a water-insoluble and amorphous basic aluminum salt, wherein the amount of the basic aluminum salt is in a range of from 5 to 35 parts by weight per 100 parts by weight of pigment in the pigment layer, wherein the basic aluminum salt is represented by the general formula (1) below:
- Al.sub.x (OH).sub.y X.sub.Z ( 1)
- where x, y and z are respectively positive integers and satisfy the relations of z=3x-y, and x/z.gtoreq.3, and X is an acid radical, and said recording medium having a Stockigt sizing degree of from zero to 15 seconds.
Dependencies are inferred from the claim text.