US 5,635,340 A · Image forming method

Abstract

A method of image formation using mask for exposure to form an image on photographic paper is disclosed. The mask is composed of transferred images of the dyes of yellow, cyan and magenta. The spectral absorption peak wavelength of the dye is set in a range close to the wavelength at the maximum value of each of the regular, orthochromatic and panchromatic spectral sensitivities of the photographic paper to be used. In the spectral absorption of cyan of the mask for exposure, the absorbance of the wavelength at the maximum value of each of the regular and orthochromatic spectral sensitivities of the photographic paper to be used, is set at a value not more than a predetermined value. In the spectral absorption of yellow of the mask for exposure, the absorbance of the wavelength at the maximal value of each of the orthochromatic and panchromatic spectral sensitivities of the photographic paper to be used, is set at a value not more than a predetermined value.

Claims8

Dependent claims

An image forming method comprising the steps of:

exposing a silver halide color photographic material having a blue, green and red sensitive silver halide emulsion layer to light through a mask, said mask having an image formed with thermal diffusible yellow, magenta and cyan dyes, and
processing the exposed silver halide color photographic material by a color developing process,
wherein the light absorbance of each of the yellow, magenta and cyan dyes in said mask at, respectively, each of the wavelengths of maximum spectral sensitivity of blue, green and red in the silver halide emulsion is not less than 80% of the maximum light absorbance of each of the yellow, magenta and cyan dyes in said mask.

Dependencies are inferred from the claim text.

Image forming method

Life of this patent

Image forming method

Life of this patent

Abstract

Claims8