Pressure sensitive recording sheet
AssigneeFuji Photo Film Co., Ltd.
InventorsYasuhiro Ogata, Masakazu Maekawa
Life of this patent
Estimating the term…
Abstract
A pressure sensitive recording sheet which uses specified raw paper as a paper support. The raw paper has a fiber length distribution such that the total amount of a percentage by weight of a 24 mesh residue and that of a 42 mesh residue is 65% or less by weight of the total residue as determined in accordance with the fiber classification method (JIS P-8207) and thereby both decreased process fog and increased color density of the developed images are attained.
Claims5
A pressure sensitive recording sheet which uses a coloring reaction of an electron donating color former with an electron accepting color developer and which comprises as a support raw paper having a fiber length distribution such that the total amount of a percentage by weight of a 24 mesh residue and that of a 42 mesh residue is 65% or less by weight of the total residue as determined in accordance with the fiber classification method established by JIS P-8207.
Dependencies are inferred from the claim text.