Pressure sensitive recording sheet

摘要

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.