Konishiroku Photo Industry Co., Ltd.

Konica Corporation

Akio Iwaki

Masafumi Uehara

Fumio Shimada

Masatoshi Matsuzaki

Takeshi Yamamoto

Norihito Suzuki

Toru Aoki

Yoko Ogawa

Tatsuya Sasazawa

Toyoki Nishijima

Noriyasu Kita

Akira Nogami

Kazuhiro Shimura

Yoshio Kurita

Akio Iijima

Keiichi Yumiki

Hiroyoshi Yamaguchi

A method and a device of dividing an aqueous processing waste solution of a non-silver halide light-sensitive material into solid and water are disclosed comprising the steps of:

Method of treating an aqueous processing waste solution of a non-silver

A support for lithographic printing plate having provided on an iron material (i) a layer substantially consisting of chromium and/or chromium oxide and (ii) a layer consisting essentially of a water soluble polymeric compound and at least one selected from water soluble salts of calcium, magnesium, zinc, barium, strontium, cobalt, manganese, nickel and silicon, in this order.

Support for lithographic printing plate

Disclosed is a support for lithographic printing plate having an electrodeposited chromium layer on an iron material, characterized in that the surface of said electrodeposited layer has a shape in which crystalline products with angles protrude thereon, the elemental composition in the surface side portion of said electrodeposited layer consists substantially of chromium and oxygen and the ratios of atomic concentrations of chromium and oxygen at said portion are substantially even at the same depth from every point on said surface.

The main photosensitive ingredient of the photosensitive composition is prepared by subjecting a polymer, which is obtained by homopolymerizing, or copolymerizing with another copolymerizable monomer, a monomer of the general formula ##STR1## in which R represents a hydrogen atom, a halogen atom, or an alkyl group, Y represents a substituted or unsubstituted phenylene group or a substituted or unsubstituted naphthylene group, p is 0 or 1, and when p=1, X represents a divalent organic group, to reaction with p-azidocinnamylidene-.alpha.-cyanoacetic chloride in the presence of an organic or inorganic base.

Photosensitive composition

New liquid developers for electrophotography comprise (a) a coloring agent, (b) a charge control agent and (c) one or more of a polyethylene, a polypropylene, an ethylene copolymer and a propylene copolymer, with or without (d) a hydrocarbon resin soluble in a hydrocarbon solvent and containing a 1,3-pentadiene moiety, in an electro-insulating liquid. These developers have an excellent etching resistance and a high dispersion stability.

Liquid developers for electrophotography and developing method using the

A photosensitive composition useful for making a photosensitive lithographic printing plate are made from a condensation product of sulfonyl chloride of o-benzoquinone diazide or o-naphthoquinone diazide and a polyhydric phenol resin obtained by condensing a polyhydric phenol such as 2-methyl resorcinol with an aldehyde or ketone.

Photosensitive composite and photosensitive lithographic printing plate

A photosensitive composition useful for making a photosensitive lithographic printing plate are made from a condensation product of sulfonylchloride of o-benzoquinone diazide or o-naphthoquinone diazide and a polyhydric phenol resin obtained by condensing a polyhydric phenol such as resorcinol with a benzaldehyde, an acetophenone, or a benzophenone.

Photosensitive o-quinone diazide composition and photosensitive

A composition containing a photosensitive polymer which becomes insoluble by a light exposure and particularly to a highly photosensitive composition which comprises a photosensitive polymer having in the structure as photosensitive groups both an a,B-unsaturated ketone group having a cyano group at the a-position and an azide group.

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Hino, Japan

Akio Iwaki