Image forming material

Claim 2

A process for forming an image on a multilayer image-forming material which consists of imagewise irradiating with electromagnetic radiation a multilayer image-forming material which comprises a layer of an organic sulfur compound and a layer of a metal capable of forming an interreaction product with said sulfur compound upon said irradiation with electromagnetic radiation, said sulfur compound being selected from the group consisting of: A. dithiocarbamate having the general formula: ##STR5## wherein R and R 1 each is a hydrogen atom, an alkyl group, or an aryl group, and R and R 1 may combine to form a 5- or 6-membered ring, and M is a hydrogen atom, a meta ion or group; B. trithiocarbonate having the general formula: ##STR6## wherein M 1 and M 2 each is a hydrogen atom, a metal ion or group; C. dithiophosphate having the general formula: ##STR7## wherein R 2 and R 3 each is a hydrogen atom, an alkyl group or an aryl group, wherein M 3 is a hydrogen atom, a metal ion or group; D. dithioxanthate having the general formula: ##STR8## wherein R 4 is an alkyl group and M 4 is a hydrogen atom, a metal ion or group; and E. bismuthiol-II; said metal capable of forming said interreaction product being selected from the group consisting of copper, silver, tin, nickel, cadmium, magnesium, tellurium, gallium, aluminum and gold; in the above formulas (t) represents the valency of the metal ion or group.

Claim 3

The image-forming process as claimed in claim 1, wherein R 1 is an alkyl group containing 4 or less carbon atoms.

Claim 4

The image-forming process as claimed in claim 1, wherein said organic sulfur compound layer has a thickness ranging from about 0.1μ to about 5μ, and said metal layer has a thickness ranging from about 0.1μ to about 5μ.

Claim 5

The image-forming process as claimed in claim 1, wherein said multilayer image-forming material comprises a support having thereon said organic sulfur compound layer and said metal layer.

Claim 6

The image-forming process as claimed in claim 4, wherein said support is transparent to said electromagnetic radiation.

Claim 7

The image-forming process as claimed in claim 4, wherein said organic sulfur compound layer is on said support and said metal layer is on said organic sulfur compound layer.

Claim 8

The image-forming process as claimed in claim 4, wherein said metal layer is on said support and said organic compound layer is on said metal layer.

Claim 9

The image-forming process as claimed in claim 4, wherein said organic sulfur compound layer comprises said organic sulfur compound in a binder.

Claim 10

The image-forming process as claimed in claim 1, wherein said image-forming material contains an optical sensitizer for said organic sulfur compound.

Claim 11

The image-forming process as claimed in claim 4, wherein said organic sulfur compound is bismuthiol-II, and said metal layer is silver, aluminum, or copper.

Claim 12

The image-forming process as claimed in claim 4, wherein said metal layer is silver or copper and wherein said support is an electrically insulating support.

Claim 13

The image-forming process as claimed in claim 4, wherein said metal layer is copper.

Claim 14

The image-forming process as claimed in claim 4, wherein said metal layer is aluminum.

Claim 15

The image-forming process as claimed in claim 1, wherein after imagewise irradiating with electromagnetic radiation said multilayer image-forming material is subjected to a solvent contact in order to dissolve away the non-irradiated portion of the layer exposed to said electromagnetic radiation.

Claim 16

A process for forming an image on a multilayer image-forming material which consists of imagewise irradiating with electromagnetic radiation a multilayer image-forming material which comprises a layer of an organic sulfur compound selected from (1) a dithiocarbamate compound having the general formula ##STR9## wherein R and R 1 each is a hydrogen atom, an alkyl group or an aryl group, or R and R 1 can combine to form a 5- or 6-membered ring and wherein M is a metal atom, said metal atom being selected from the group consisting of copper, silver, gold, tin, zinc, sodium, iron, selenium and tellurium; (2) a trithiocarbonate compound having the general formula ##STR10## wherein M 1 and M 2 each is a monovalent metal atom or group, said metal or group being selected from the group consisting of silver, gold, potassium, sodium, ammonium, copper (I), and thallium or a divalent metal atom or group selected from the group consisting of calcium, copper (II), iron, zinc, barium, strontium, titanium, tellurium, arsenic, and selenium; (3) a dithiophosphate having the general formula ##STR11## wherein R 2 and R 3 each is a hydrogen atom, an alkyl group or an aryl group and M 3 is a metal atom or group, said metal or group being selected from the group consisting of silver, gold, potassium, sodium, ammonium, copper (I), thallium, calcium, copper (II), iron, zinc, UO 2 , barium, strontium, titanium, and tellurium; (4) dithioxanthate compound having the general formula ##STR12## wherein R 4 is an alkyl group and M 4 is a metal atom or group, said metal or group being selected from the group consisting of silver, gold, potassium, sodium, ammonium, copper, calcium and barium; or (5) bismuthiol-II, and a layer of a metal capable of forming an interreaction product with said sulfur compound upon irradiation with electromagnetic radiation, said metal being selected from the group consisting of copper, silver, tin, nickel, cadmium, magnesium, tellurium, gallium, aluminum and gold in the above formulas (t) represents the valency of the metal ion or group.

Claim 17

A process for forming an image on a multilayer image-forming material which consists of imagewise irradiating with electromagnetic radiation a multilayer image-forming material which comprises a layer of an organic sulfur compound selected from (1) a dithiocarbamate compound having the general formula ##STR9## wherein R and R 1 each is a hydrogen atom, an alkyl group or an aryl group, or R and R 1 can combine to form a 5- or 6-membered ring and wherein M is a metal atom, said metal atom being selected from the group consisting of copper, silver, gold, tin, zinc, sodium, iron, selenium and tellurium; (2) a trithiocarbonate compound having the general formula ##STR10## wherein M 1 and M 2 each is a monovalent metal atom or group, said metal or group being selected from the group consisting of silver, gold, potassium, sodium, ammonium, copper (I), and thallium or a divalent metal atom or group selected from the group consisting of calcium, copper (II), iron, zinc, barium, strontium, titanium, tellurium, arsenic, and selenium; (3) a dithiophosphate having the general formula ##STR11## wherein R 2 and R 3 each is a hydrogen atom, an alkyl group or an aryl group and M 3 is a metal atom or group, said metal or group being selected from the group consisting of silver, gold, potassium, sodium, ammonium, copper (I), thallium, calcium, copper (II), iron, zinc, UO 2 , barium, strontium, titanium, and tellurium; (4) dithioxanthate compound having the general formula ##STR12## wherein R 4 is an alkyl group and M 4 is a metal atom or group, said metal or group being selected from the group consisting of silver, gold, potassium, sodium, ammonium, copper, calcium and barium; or (5) bismuthiol-II, and a layer of a metal capable of forming an interreaction product with said sulfur compound upon irradiation with electromagnetic radiation, said metal being selected from the group consisting of copper, silver, tin, nickel, cadmium, magnesium, tellurium, gallium, aluminum and gold in the above formulas (t) represents the valency of the metal ion or group.

Claim 18

The image-forming process as claimed in claim 8 wherein R is an alkyl group containing four or less carbon atoms.