PURPOSE: To obtain high color development density even by low temperature development by forming an interlayer containing a film-forming polymer binder and at least one of inorganic and organic pigments between a support and a photosensitive layer.

CONSTITUTION: The interlayer containing the film-forming polymer binder A and at least one B of the inorganic pigment and the organic pigment in a weight ratio of 1:0-1:20, preferably, 1:3-1:10 is formed in a total amount of 1-15g/m2, preferably, 3-10g/m2 between the support and the photosensitive layer, and at least one of a diazo compound and a coupling component is contained in microcapsules, and their shells are made of polyurea or poly-urethane, thus permitting high color development density to be obtained even by the low temperature development.