Recording sheet
AssigneeAsahi Glass Company, Limited
InventorsHiroshi Otouma, Hitoshi Kijimuta, Katsutoshi Misuda, Nobuyuki Yokota
Life of this patent
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Abstract
A recording sheet comprising a sheet of paper and porous particles provided on the paper surface, said porous particles having an average pore size of from 10 to 5000 .ANG., a pore volume of from 0.05 to 3.0 cc/g and an average particle size of from 0.1 to 50 .mu.m.
Claims28
A recording sheet comprising a sheet of paper and porous particles provided on the paper surface, said porous particles having an average pore size of from 10 to 5000 .ANG., a pore volume of from 0.05 to 3.0 cc/g and an average particle size of from 0.1 to 50 .mu.m, wherein the porous particles are provided on the paper surface, in the form of an overlayer formed on an intermediate layer of other particles, said intermediate layer being a layer of particles which do not substantially absorb an ink.
A recording sheet comprising a sheet of paper and porous particles provided on the paper surface, said porous particles having an average pore size of from 10 to 5000 .ANG. a pore volume of from 0.05 to 3.0 cc/g and an average particle size of from 0.1 to 50 .mu.m, wherein the porous particles are in the form of a layer, and a coating layer composed of particles having an average particle size smaller than the average particle size of said porous particles is formed on the surface of the layer of the porous particles so that the surface of the porous particles is made smooth.
Dependencies are inferred from the claim text.