Dye image receiving material

Claim 2

A dye image-receiving material suitable for image production by dye diffusion transfer processing controlled by development of image-wise exposed silver halide emulsion layer(s), wherein said image-receiving material contains a hydrophobic resin support coated with a subbing layer that is coated with said image-receiving layer containing gelatin in combination with a cationic polymeric mordant which is a basic polyurethane polyurea or polyurea-polyurethane consisting of from 0 to 30 mole % of recurring units derived from a modifying monomer selected from the group consisting of monofunctional and trifunctional alcohols, amines, and isocyanates and from 70 to 100 mole % of recurring units of the general formula (--A--B--) in which segment A corresponds to the general formula: ##STR15## wherein: R 1 represents a straight or branched chain alkyl, alkoxyalkyl, aralkyl or a disubstituted aminoalkyl group of the formula: ##STR16## or an ethylene or 1,2-propylene group which is attached to X 1 or X 2 through the second bond with formation of a piperazine ring, each of R 2 and R 3 (same or different) represents a C1-C4 alkyl group or together represent the atoms required to complete a pyrrolidine, piperidine or morphiline ring, each of X 1 and X 2 (same or different) represents --O--, --NH--, --NR 4 --, or a group of the formula --NR 4 --(CH 2 )m4--X 3 -- in which: R 4 represents an alkyl group having from 1 to 4 carbon atoms or when only one of the groups X 1 or X 2 is --NR 4 --(CH 2 )m4--X 3 --, R 4 may together with R 1 form an ethylene or a 1,2-propylene group, X 3 represents --o--, --NH-- or --NR 4 -- and may be the same as or different from X 1 or X 2 , and m1 to m4 represents 2 or 3, but in the case of m1 or m2 only the value 2 may occur when R 1 and R 4 together form an ethylene or 1,2-propylene group, and wherein segment A contains up to 40% of the bivalent tertiary amino group quaternized with a quaternizing agent carrying glycidyl groups, and the remainder of the tertiary amino groups being at least partially: (i) quaternized with quaternizing agents absent glycidyl groups, or (ii) neutralized with an acid, and in which segment B corresponds to the formula: --CO--Y--CO-- wherein Y represents, same or different, --O--R 5 --O--, --NH--R 6 --NH-- or --NH--R 6 --NH--CO--O--R 7 --O--CO--NH--R 6 --NH--, wherein: R 5 represents an alkylene group unsubstituted or substituted with alkyl or interrupted by ether oxygen atoms, R 6 represents an alkylene group unsubstituted or substituted with alkyl groups, a cycloalkylene group or an arylene group, and R 7 represents any divalent group not containing any Zerewitinoff active group or a group capable of reacting with isocyanate groups, provided that Y can represent --OR 5 O only when X 1 , X 2 or X 3 are not --O--; characterized in that the weight ratio of said polymeric mordant to gelatin in said image-receiving layer is between 25:1 to 1:1 and the gelatin is present therein at a coverage of at least 0.1 g per m 2 , and in that said subbing layer has been applied from an aqueous composition comprising a polyester-polyurethane wherein isocyanate groups still present in its structure have reacted with an ionomeric compound containing at least one active hydrogen atom and a carboxylate or sulphonate salt group forming an anionic polyesterpolyurethane.

Claim 3

An image-receiving material according to claim 1, wherein the sulfonate and/or carboxylate groups total from 0.5 to 15% by weight with respect to said anionic polyester-polyurethane.

Claim 4

An image-receiving material according to claim 1, wherein said polyester-polyurethane used as starting product in the reaction with said ionomeric compound is a polyurethane of an essentially linear polyester compound that has two terminal hydroxyl groups, the polyester having preferably a molecular weight of about 300 to about 20,000.

Claim 5

An image-receiving material according to claim 1, wherein said anionic polyester-polyurethane contains linear polyester structural parts corresponding with a polyester derived from a dicarboxylic acid containing up to 6 carbon atoms and a polyhydric aliphatic alcohol containing up to 6 carbon atoms.

Claim 6

An image-receiving material according to claim 1, wherein said anionic polyester-polyurethane is the reaction product of: (1) the polyester of apipic acid and hexanediol with average molecular weight 840, (23%), (2) 4,4'-diisocyanato-dicyclohexylmethane (14%), (3) dimethylolpropionic acid(2%), and (4) trimethylamine (1.5%), the given percentages being by weight, said reaction product being dispersed in water containing 7.5% by weight of N-methylpyrrolidinone.

Claim 7

An image-receiving material according to claim 1, wherein the subbing layer has been applied from an aqueous coating composition containing a siloxane.

Claim 8

An image-receiving material according to claim 1, wherein the support is made of a polyester resin, a polycarbonate of bis-phenol, a polyolefin, polystyrene or a vinyl chloride polymer.

Claim 9

A laminar article comprising a dye image produced in an image-receiving material suitable for image production by dye diffusion transfer processing controlled by development of (an) image-wise exposed silver halide emulsion layer(s), wherein said image-receiving material contains a hydrophobic resin support coated with a subbing layer that is coated with said image-receiving layer containing gelatin in combination with a cationic polymeric mordant which is a basic polyurethane polyurea or polyurea-polyurethane consisting of from 0 to 30 mole % of recurring units derived from a modifying monomer selected from the group consisting of monofunctional and trifunctional alcohols, amines, and isocyanates and from 70 to 100 mole % of recurring units of the general formula (--A--B--) in which segment A corresponds to the general formula: ##STR17## wherein: R 1 represents a straight or branched chain alkyl, alkoxyalkyl, aralkyl or a disubstituted aminoalkyl group of the formula: ##STR18## or an ethylene or 1,2-propylene group which is attached to X 1 or X 2 through the second bond with formation of a piperazine ring, each of R 2 and R 3 (same or different) represents a C1-C4 alkyl group or together represent the atoms required to complete a pyrrolidine, pipeidine or morphiline ring, each of X 1 and X 2 (same or different) represents --O--, --NH--, --NR 4 --, or a grup of the formula --NR 4 --(CH 2 )m4--X 3 -- in which: R 4 represents an alkyl group having from 1 to 4 carbon atoms or when only one of the groups X 1 or X 2 is --NR 4 --(CH 2 )m4--X 3 --, R 4 may together with R 1 form an ethylene or a 1,2-propylene group, X 3 represents --O--, --NH-- or --NR 4 -- and may be the same as or different from X 1 or X 2 , and m1 to m4 represents 2 or 3, but in the case of m1 or m2 only the value 2 may occur when R 1 and R 4 together form an ethylene or 1,2-propylene group, and wherein segment A contains up to 40% of the bivalent tertiary amino group quaternized with a quaternizing agent carrying glycidyl groups, and the remainder of the teritary amino groups being at least partially: (i) quaternized with quaternizing agents absent glycidyl groups, or (ii) neutralized with an acid, and in which segment B corresponds to the formula: --CO--Y--CO-- wherein Y represents , same or different, --O--R 5 --O--, --NH--R 6 --NH-- or --NH--R 6 --NH--CO--O--R 7 --O--CO--NH--R 6 --NH--, wherein: R 5 represents an alkylene group unsubstituted or subsstituted with alkyl or interrupted by ether oxygen atoms, R 6 represents an alkylene group unsubstituted or substituted with alkyl groups, a cycloalkylene group or an arylene group, and R 7 represents any divalent group not containing any Zerewitinoff active group or a group capable of reacting with isocyanate groups, provided that Y can represent --OR 5 O only when X 1 , X 2 or X 3 are not --O--; characterized in that the weight ratio of said polymeric mordant to gelatin in said image-receiving layer is between 25:1 to 1:1 and the gelatin is present therein at a converage of at least 0.1 g per m 2 , and in that said subbing layer has been applied from an aqueous composition comprising a polyester-polyurethane wherein isocyanate groups still present in its structure have reacted with an ionomeric compound containing at least one active hydrogen atom and a carobxylate or sulphonate salt group forming an anionic polyesterpolyurethane, and wherein the image-receiving layer is enveloped between a vinyl chloride polymer support and a resin cover sheet fixed to the image-receiving layer by lamination using pressure and heat.

Claim 10

A laminar article comprising a dye image produced in an image-receiving material suitable for image production by dye diffusion transfer processing controlled by development of (an) image-wise exposed silver halide emulsion layer(s), wherein said image-receiving material contains a hydrophobic resin support coated with a subbing layer that is coated with said image-receiving layer containing gelatin in combination with a cationic polymeric mordant which is a basic polyurethane polyurea or polyurea-polyurethane consisting of from 0 to 30 mole % of recurring units derived from a modifying monomer selected from the group consisting of monofunctional and trifunctional alcohols, amines, and isocyanates and from 70 to 100 mole % of recurring units of the general formula (--A--B--) in which segment A corresponds to the general formula: ##STR17## wherein: R 1 represents a straight or branched chain alkyl, alkoxyalkyl, aralkyl or a disubstituted aminoalkyl group of the formula: ##STR18## or an ethylene or 1,2-propylene group which is attached to X 1 or X 2 through the second bond with formation of a piperazine ring, each of R 2 and R 3 (same or different) represents a C1-C4 alkyl group or together represent the atoms required to complete a pyrrolidine, pipeidine or morphiline ring, each of X 1 and X 2 (same or different) represents --O--, --NH--, --NR 4 --, or a grup of the formula --NR 4 --(CH 2 )m4--X 3 -- in which: R 4 represents an alkyl group having from 1 to 4 carbon atoms or when only one of the groups X 1 or X 2 is --NR 4 --(CH 2 )m4--X 3 --, R 4 may together with R 1 form an ethylene or a 1,2-propylene group, X 3 represents --O--, --NH-- or --NR 4 -- and may be the same as or different from X 1 or X 2 , and m1 to m4 represents 2 or 3, but in the case of m1 or m2 only the value 2 may occur when R 1 and R 4 together form an ethylene or 1,2-propylene group, and wherein segment A contains up to 40% of the bivalent tertiary amino group quaternized with a quaternizing agent carrying glycidyl groups, and the remainder of the teritary amino groups being at least partially: (i) quaternized with quaternizing agents absent glycidyl groups, or (ii) neutralized with an acid, and in which segment B corresponds to the formula: --CO--Y--CO-- wherein Y represents , same or different, --O--R 5 --O--, --NH--R 6 --NH-- or --NH--R 6 --NH--CO--O--R 7 --O--CO--NH--R 6 --NH--, wherein: R 5 represents an alkylene group unsubstituted or subsstituted with alkyl or interrupted by ether oxygen atoms, R 6 represents an alkylene group unsubstituted or substituted with alkyl groups, a cycloalkylene group or an arylene group, and R 7 represents any divalent group not containing any Zerewitinoff active group or a group capable of reacting with isocyanate groups, provided that Y can represent --OR 5 O only when X 1 , X 2 or X 3 are not --O--; characterized in that the weight ratio of said polymeric mordant to gelatin in said image-receiving layer is between 25:1 to 1:1 and the gelatin is present therein at a converage of at least 0.1 g per m 2 , and in that said subbing layer has been applied from an aqueous composition comprising a polyester-polyurethane wherein isocyanate groups still present in its structure have reacted with an ionomeric compound containing at least one active hydrogen atom and a carobxylate or sulphonate salt group forming an anionic polyesterpolyurethane, and wherein the image-receiving layer is enveloped between a vinyl chloride polymer support and a resin cover sheet fixed to the image-receiving layer by lamination using pressure and heat.

Claim 11

A laminar article according to claim 8, wherein the resin cover sheet is a polyethylene terephthalate sheet being coated with a resinous melt-adhesive layer.

Claim 12

A laminar article according to claim 9, wherein the resinous melt-adhesive layer is a polyethylene layer.