Ink jet recording sheet
AssigneeFuji Photo Film Co., Ltd.
InventorsYuichi Wakata, Ryoichi Nakano, Mizuki Yamamoto
Life of this patent
Estimating the term…
Abstract
It is an object of the present invention to provide an ink jet recording sheet which has high glossiness of the recording surface and is free from the bleeding of an image with time even under high temperature and humidity. Also, the recording sheet can avoid the occurrence of cracks, is strong, possesses high ink-absorbing ability, and can form an image with high light resistance and water resistance. The ink jet recording sheet comprises a polymer which contains a quaternary ammonium base in its molecule, of which the ratio of inorganicity/organicity (I/O value) calculated based on an organic conceptual diagram is 1.0 or less and the cation density (meq/g) is 3.0 or less, and which is soluble in at least one of water and an organic solvent.
Claims18
An ink jet recording sheet for receiving ink in ink jet image recording methods comprising a support and a colorant receptor layer on said support, said colorant receptor layer containing:
- inorganic pigment fine particles having an average primary particle diameter of 20 nm or less;
- a water-soluble resin;
- and a polymer which contains a quaternary ammonium base, said polymer having an inorganicity/organicity ratio calculated based on an organic conceptual diagram of at most 1.0 and a cation density of at most 3.0 meq/g, and said polymer being soluble in at least one of water and an organic solvent.
Dependencies are inferred from the claim text.