Fuji Photo Film Company, Limited

Yoo Iijima

Katsumi Hayashi

Eiichi Okutsu

Haruhiko Iwano

Tadao Shishido

Shoji Ishiguro

Isao Shimamura

Nobuo Sugiyama

Mitsunori Sugiyama

Katsumi Hosoya

Hikoharu Hara

High-contrast photographic images are obtained by developing with a developer containing at least one dihydroxybenzene and sulfite ion and then treating with a solution of an oxidizing agent.

Method of forming photographic line and half-tone images

A process for developing a photographic light-sensitive material for the graphic arts which comprises infectiously developing a silver halide light-sensitive material comprising a support having coated thereon a silver halide emulsion layer containing at least 60 mol% silver chloride with an infectious developing solution containing a compound represented by the general formula (I): ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, each is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an aryl group having up to 12 carbon atoms, or a halogen atom; and n is 1 to 2.

Process for developing photographic light-sensitive materials for the

A photographic developer composition containing (1) a developing agent, (2) a carbonyl-bisulfite, (3) a carbonate and (4) a primary or secondary alkanolamine, the alkanolamine being present in a molar amount less than the amount of said carbonylbisulfite.

Photographic developer composition

A photographic developer composition for obtaining high contrast images which comprises (1) a dihydroxybenzene developing agent, (2) an alkanolamine and (3) a compound having the following formula (I) ##SPC1## wherein R.sub.1 and R.sub.2 each represents a lower aliphatic hydrocarbon group, wherein R.sub.1 and R.sub.2 may combine to form a ring, n represents 0 or 1, and X.sup..crclbar. represents an anion.

Photographic developer compositions for obtaining high contrast images

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Minami-ashigara, Japan

Yoo Iijima