Light-sensitive photographic material with antistatic layer

Claim 2

The light-sensitive photographic material as claimed in claim 1, wherein said anionic polymer is polyacrylic acid, polymethacrylic acid, maleic anhydride-isobutylene copolymer or maleic anhydride-vinylbutyl ether copolymer.

Claim 3

The light-sensitive photographic material as claimed in claim 3, wherein the said anionic polymer is selected from the group consisting of sodium alginate and a polymer having repeating units of the following formulas:

Claim 4

The light-sensitive photographic material as claimed in claim 1, wherein said betaine-type amphoteric surface active agent is N-octadecyl-N,N-dimethyl- Alpha -carboxylic acid betaine, N-tetradecyl-N,N-(2-hydroxyethyl)- Alpha -carboxylic acid betaine, N-tetradecyloxy-(2-hydroxy-propyl)-N,N-di(2-hydroxyethyl)- Alpha -carboxylic acid betaine, 2-dodecyl-N-(2-hydroxyethyl)imidazolium- Alpha -carboxylic acid betaine, N-dodecyloxy-methyl-N,N-diethyl- Alpha -carboxylic acid betaine, N-tetradecyl-N,N-di(poly-oxyethylene)- Alpha -carboxylic acid betaine, or N-3-dodecylaminopropyl-N,N-dimethyl- Alpha -carboxylic acid betaine.

Claim 5

The light-sensitiVe photographic material as claimed in claim 1, wherein the weight ratio of the surface active agent to the anionic polymer is 1/100 to 1.

Claim 6

A light-sensitive photographic material comprising a support having coated thereon one or more silver halide emulsion layers and at least one subsidiary layer, at least one of said layers having therein or thereon an antistatic composition consisting essentially of A. an anionic polymer having a carboxyl group or an alkali metal salt thereof as a side chain thereof having at most only a slight antistatic effect, and B. at least one of a cationic surface active agent and a betaine-type amphoteric surface active agent, said cationic surface active agent being selected from the group consisting of: N-octadecyl-N,N,N-tris(2-hydroxyethyl)ammonium chloride, N-octadecyl-N,N,N-tris(2-hydroxyethyl)ammonium bromide, N-tetradecyl-N,N,N-(2-hydroxyethyl)ammonium chloride, N-octadecyl-N,N,N-trimethylammonium chloride, N-tetradecyl-N,N-dimethyl-N-benzyl-ammonium chloride, 3-dodecyloxy-2-hydroxypropyl-trimethylammonium bromide, 3-p-nonylphenyl-2-hydroxypropyl-tris(2-hydroxyethyl)ammonium chloride, or 3-tetradecyloxy(2-hydroxypropyl)pyridinium chloride, whereby an antistatic effect is obtained without being accompanied by adverse influences on the photographic properties of said photographic material.

Claim 7

The light-sensitive photographic material as claimed in claim 7, wherein said anionic polymer and surface active agent are incorporated in different layers.

Claim 8

The light-sensitive photographic material as claimed in claim 7, wherein said anionic polymer is polyacrylic acid, polymethacrylic acid, maleic anhydride-isobutylene copolymer or maleic anhydride-vinyl-butyl ether copolymer.

Claim 9

The light-sensitive photographic material as claimed in claim 9, wherein said anionic polymer is selected from the group consisting of sodium alginate and a polymer having repeating units of the following formulas:

Claim 10

The light-sensitive photographic material as claimed in claim 7, wherein said betaine-type amphoteric surface active agent is N-octadecyl-N,N-dimethyl- Alpha -carboxylic acid betaine, N-tetradecyl-N,N-(2-hydroxyethyl)- Alpha -carboxylic acid betaine, N-tetradecyloxy-(2-hydroxypropyl)-N,N-di(2-hydroxyethyl)- Alpha -carboxylic acid betaine, 2-dodecyl-N-(2-hydroxyethyl)imidazolium- Alpha -carboxylic acid betaine, N-dodecyloxymethyl-N,N-diethyl- Alpha -carboxylic acid betaine, N-tetradecyl-N,N-di(polyoxyethylene)- Alpha -carboxylic acid betaine, or N-3-dodecylamino-propyl-N,N-dimethyl- Alpha -carboxylic acid betaine.

Claim 11

The light-sensitive photographic material as claimed in claim 7, wherein the weight ratio of the surface active agent to the anionic polymer is 1/100 to 1.

Claim 12

The light-sensitive photographic material as claimed in claim 8, wherein said different coating layer is a subsidiary layer, a protective layer, an overcoat layer, a filter layer, an intermediate layer, or an antihalation layer.