FR2495792A1 - PHOTOGRAPHIC IMAGE DIBRING IMAGE FORMER PRODUCT, AND POSITIVE COLOR IMAGE FORMING METHOD - Google Patents

Abstract

THE PRESENT INVENTION IS RELATIVE TO PHOTOGRAPHY. THE IMBIBITION DYE IMBIBITION DYE IMAGE-FORMING PHOTOGRAPHIC PRODUCT FOLLOWING THE INVENTION INCLUDES A SUPPORT 1 ON WHICH A COAT OF CATIONIC MORDANT 3 IS APPLIED TO SET ANIONIC DYE AND, OVERLAY, A COAT OF PHOTOPOLYMER PHOTOCURING 4 INCLUDING ESSENTIALLY A POLYCURING PHOTOSENSITIVE IONOMER. THE PROCESS FOLLOWING THE INVENTION CONSISTS OF DEVELOPING THE PHOTOPOLYMER LAYER EXPOSED FOLLOWING AN IMAGE BY RINSING WITH WATER THEN INCORPORATING ANIONIC DYE IN THE MORDING LAYER BY IMBIBITION THROUGH THE NON-EXPOSED RANGES OF THE PHOTOPOLYMER LAYER TO FORM A POSITIVE CONTINUOUS MODEL COLORING IMAGE. APPLICATION TO OBTAINING A CONTINUOUS MODEL COLORANT IMAGE WITH LOW CONTRAST, USEFUL IN THE PREPARATION OF COLOR TESTS.

Description

The present invention relates to a strong photographic product

  imbibition dye image matrix which comprises a layer of

  on which is superimposed a layer which contains a photo-polymer

  sensitive. The present invention further relates to a method of forming a continuous dye-positive dye image in which the image-forming photographic product is developed in water after

  its exposure following an image, then we introduce into the photo-

  graph developed an anionic dye by imbibition.

  The photocurable, image-forming compositions, and the

  Photographic products containing them useful for preparing continuous patterned dye images, for example, color separation tests, are well known in the art. These compositions and these products are described, for example in the journal "Research Disclosure",

  May 1978, Section 16976 and US Patent 4,220,700.

  The compositions described in these references are pho

  strippable tosensibles which contain, in admixture, in the form of a photocurable composition, a photosensitive diazo resin and a mordant for an anionic dye. Such a composition is useful for forming a dye image by imagewise exposure of a layer of

  this composition applied to a support, then development by rinse

  water, followed by an imbibition introduction of an anionic dye into the developed layer where this dye is immobilized by the

  biting. This dye image can be transferred to a layer

  which contains a cationic mordant with

  higher than that of the mordant mixed with the diazo resin

  sensitive. These compositions and photographic products described in the above references are useful for forming dye images by a negative method and it would be desirable to develop

  imbibing dye image-forming products which make it possible

  hold a positive continuous patterned dye image.

  Photographic products that make it possible to obtain an image of

  Positive dye diffusion through a layer having different degrees of permeability is described in U.S. Patent 3,255,002. In this patent, the layer having different

  degrees of permeability is formed by exposure of a layer of poly-

  photosensitive mother, such as vinyl polycinnamate, polystyrene comprising units derived from cinnamic acid, etc. In Example 1 of this patent, a polyvinylamide resin layer is used to form a positive dye image, but the image obtained has a

  very high contrast and can not be used in the form of a test

  as a continuous patterned dye image.

  It has furthermore been found that photosensitive polymers which do not comprise ionic charge groups, polymers such as

  succinate copolymer and 1,4-cyclohexylene p-phenylenebisacrylate

  bisoxyethylene in the ratio 45/55 provide too much contrasting

  for use in the production of dye images

continuous positive pattern.

  The present invention provides a solution to the problem mentioned above, and particularly relates to an imbibing dye image-forming photographic product in which it is possible to form

  a continuous patterned dye image with sufficient contrast

  weakly enough to be used in separa-

  colors. For this purpose, a support is used on which is applied a layer which contains a mordant as described in US Patent 4,220,700, but this layer does not contain the photocurable diazo resin, and on this layer is applied an overlayer of a photo-curable polymer consisting essentially of a

photosensitive ionomeric polyester.

  The dye image-forming photographic product by imbibi-

  according to the invention comprises a recess (a) to which is applied successively (b) a layer which contains a cationic mordant for

  receiving an anionic dye and (c) a photoconductive polymer layer.

  superimposed sensitized layer on the layer containing such

  This photocurable photopolymer essentially consists of a light-sensitive ionomeric polyester. This product provides an image

  of positive dye with a continuous pattern.

  The light-sensitive ionomeric polyester is a compound which advantageously corresponds to the following formula:

0 0

I IlIi

-.- -C -'- C '' -

_ CIL1CH2C0-es S C-OCH2 CH2, X o 0

CH-CH-CH-CH 2

R i O

O_ - -_R '- R -

  ## STR2 ## wherein R represents a straight-chained or branched alkylene group of 2 to carbon atoms such as the ethylene, propylene, butylene, trimethylene or 2,2-dimethyl-1 radicals; 3-propylene and 1,10-decylene, a cycloalkylene group of 5 to 6 carbon atoms such as 1,4-cyclohexylene and 1,4-cyclohexylenedimethylene, or an aliphatic ether group of 3 to 12 carbon atoms in the aliphatic ether chain, such as oxydiethylene and ethylenebisoxyethylene groups, R represents an aromatic group of 6 to 12 carbon atoms, such as phenylene and naphthylene radicals, R3 represents a straight or branched chain alkylene group of 2 to 10 carbon atoms such as the ethylene, propylene, butylene, 2,2-dimethyl-1,3-propylene and 1,10-decylene radicals,

  R represents an ionic group chosen from the groups corresponding to

  with the following formulas: Me T SO2 - N (_ n / a 2 Q SO2 1 2 I SO C% 3 Me i S3 M

G 3

  M represents an alkali metal ion or an ammonium ion, x represents a molar percentage of between 50 and 100, v represents a molar percentage of 0 to 35, w is a molar percentage of 0 to 35, y is a molar percentage of 50. at 85, and

  z is a molar percentage of 15 to 40.

  As described above, the photosensitive ionomeric polyester is in a separate layer and superimposed on the layer which contains

the cationic mordant.

  The process according to the invention for forming a colorant image

  Continuous patterning includes the following steps:

  (1) the photopolymer layer of an

  photographic dummy dye imager, such as

  described above, to activation radiation to form a

  following a cured photopolymer image, (2) the water-washing photopolymer layer is developed, and (3) an anionic dye is introduced into the cationic mordant layer by imbibing through the ranges corresponding to the

  unexposed of the photopolymer layer.

  According to a variant of the process described above, it is possible to delete

  stage of development of the photopolymer layer and keep only

  the exposure step following an image and the training step

  image of anionic dye by imbibition.

  To form the image of anionic dye by imbibition, it is advantageous to treat the photographic product according to the invention,

  after exposure following an image, and possibly after the development

  by washing with water, with a bath containing at least one colo-

  Anionic acid in a suitable aqueous solvent such as water or a mixture of water and an organic solvent. For example, the photographic material can be immersed, after its imagewise exposure, in a bath which contains at least one anionic dye in a suitable solvent for a time sufficient for a given amount of dye to be introduced by imbibition in the cationic mordant layer, the dye

being distributed according to an image.

  It is possible to transfer the dye image, positive, continuous patterned, prepared by the method according to the invention, on a layer

  dye image receptor which contains a cationic mordant possessing

  with a higher etching power than the bitumen of the pho-

  tographic according to the invention, maintaining in contact with the photo-

  graphic carrying dye image formed by imbibing this layer

  receiving dye image in the presence of an aqueous solution which favors

  make the transfer of the anionic dye image.

  The dye image-forming photographic product by imbibi-

  tion according to the invention is particularly useful when

  paring a proof for the separation of colors from print

  by lithography or by gravure, usable before going to press.

  The photographic product according to the invention is, moreover, useful in

  other applications where it is desired to form a positive dye image.

  continuous modeling, for example, the form of film-making films for Graphic Arts and original microfilms. The present invention is related to the surprising fact that replacing photopolymers that did not allow. not to obtain images of continuous dye by other photopolymers including ionic charge groups,

  such as light-sensitive ionomeric polyesters, it was possible to

  hold images of continuous patterned dye.

  The light-sensitive ionomeric polyesters useful in the photographic products according to the invention can be prepared by

  for preparing known polymers. Examples of preparation of poly-

  useful light-sensitive ionic esters are described, for example, in

  United States of America 3,929,489 and British Patent 1,470,059.

  Examples of useful light-sensitive ionomeric polyesters include the following compounds:

  1) copolymer of succinate, p-phenylenebisacrylate and 5-sodio-

  1,4-cyclohexylenebisoxyethylene sulfoisophthalate (20/60/20 mol) corresponding to the following formula: e -

7 0c - <(Ci-OCI2CIzo-

0 0

He He

- Ci} - c--

0 0

  He s-. He - Cc-li-c-./O. -C-CHC \ ... / o o He * He

C-I 'O C

i'1c \ o /

  2) copolymer of succinate, p-phenylenebisacrylate and 5- (4-

  1,4-cyclohexylenebisoxyethylene (15/55/30 mol) sodiosulfophenoxy) isophthalate corresponding to the following formula: b 6 -ocII,., Cue - <S '. -OdH2 C & O II C - o He

- ClH2 Clt - C -

0 0

He -a He

C-C-CRMCH-./ O \. -CI - CH-C-

\.AT/

O O

I the C o i

S0o (P

m

  3) copolymer of succinate, p-phenylenebisacrylate and 3,3'-

  1,4-cyclohexylenebisoxyethylene sodioiminodisulfonyldibenzoate (25/60/15 mol) corresponding to the following formula:

- CRCH, 2 -C

OCHE CH3 0 (-I \ .C d H12 ass -

o -B-HC-CH-.1 OR /. Cl-CI-CIS

-CI -CCH

  oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo

  4) copolymer of succinate, p-phenylenebisacrylate and 5- (4-

  1,4-cyclohexanedicarboxylate -1,4-cyclohexanedicarboxylate 1,4-cyclohexylenecarboxylate

  bisoxyethylene (15/55/30 mol) corresponding to the following formula: o 0 Il il

- CH2 CH2 -.C

cCHO wo - / S 'OCHZ CH2 O-- -

-HC-CCh-.Q.O -CH-CH_-C--

0 O

  The optimum titre of light-sensitive polyester ionomer in the photopolymer layer is a function of several factors, in particular the

  dye intended to be fixed by imbibition, the mordant used,

  treatment conditions and qualities of the dye image to be formed. A useful ionomer polyester titer range in the photolayer

  polymer is between 0.01 mg and 20 mg polyester ionomer by

  square meter, advantageously between 2 mg and 10 mg.

  A variety of mordants can be used in the mordant layer of the photographic product according to the invention, but the mordant used

  must not impair the hardening under the action of the light of the poly-

  ionomer ester, and its ability to coat and adhere. The mordant used must be, in addition, a compound which remains on the support during exposure, development and during the imbibition stage.

  dye in carrying out the process according to the invention.

  Useful mordants, advantageously polymeric mordants, include

  Most of the mordants that have been advocated for the preparation of

2495-792

  films and photographic papers and which include derived motifs

  monomers containing cationic groups.

  A useful mordant is, for example, a polymer which comprises units corresponding to the following formula:

- + T - ±

  T) I z Xe o: T represents an organic group and is part of the skeleton of a

  polymer, organic group such as 1,2,2-ethylidyne, 1,4-carboxyalkyl,

  1,2,2-ethylidyne, 1,3,4-succinimidetriyl, 1-carbamoyl-1,2,2-ethylidyne and 2-methyl-1,2,2-ethylidyne, Q represents a chemical bond or a chemical group linking Z to T, such as an arylenealkylene group, for example, phenylenemethylene, arylene, alkylene or amido, an arylene ester or amide group, for example the carbamoyloxyethyl, carbonyliminophenyl, carbonyliminoethyl and carbonyloxyphenyl groups, Xe represents an anion such as the ion chloride, bromide, nitrate, methosulfate and p-toluenesulfonate, and ZD represents a cationic group, advantageously a group

  quaternary ammonium or phosphonium.

  According to advantageous embodiments, Q represents a hydrocarbon group of 5 to 20 carbon atoms, such as an arylene group, including the phenylenie and naphthylene groups; arylenealkylene, such as phenylenemethyl and phenyleneethylene; arylenebisalkylene, such as phenylenedimethylene and phenylenediethylene; alkylenebisarylene, such as isopropylidenediphenylene and methylene diphenylene, and

  alkylene and alkylenearylene groups and other groups mentioned

  linked to -T- with an ester, amide or ether group or which

  have other amide bonding groups -CONH- or ester -COO-, such

  carbonyloxyethyl groups, carbonyliminomethylenephenylene

  ethylene, carbonyloxyethyleneoxycarbonylphenylene, and carbonyloxy-

propylene.

  According to particularly advantageous embodiments, Z represents a quaternary ammonium group corresponding to the following formula:

R10 - -R 1

R

Z495792

  wherein R, R and R, which may be the same or different, each represents an aryl, aralkyl or alkaryl radical containing 6 to 20 carbon atoms or an alkyl group of 1 to 10 carbon atoms. Examples of useful groups include phenyl, naphthyl, phenylethyl, benzyl, isopropylphenyl, methyl, ethyl,

cyclohexyl and decyl.

  Other examples of useful mordants include those containing the units corresponding to the following formula:

-ECH - CH-

D IQ

  When D represents a hydrogen atom or a chemical group connected to Q represents one or more chemical bonds or a chemical group linking Z to the carbon atom of the vinyl group, Z represents a heterocycle corresponding to the following formula: -

HC ... = .... - T1

such as: N

IN - T

  G: Z represents non-metallic atoms, in particular carbon, oxygen and nitrogen atoms, necessary to complete a saturated or unsaturated ring; T1 represents a hydrogen atom, an aralkyl group of 7 to 20 carbon atoms, such as benzyl, phenythyl, or naphthylethyl groups or alkyl groups of 1 to 5 carbon atoms, and X1 represents an anion such as chloride ion, bromide, nitrate,

  methosulfate and p-toluenesulfonate.

  The alkyl groups mentioned above include alkyl groups substituted with moieties which do not alter the mordant properties of the mordant. As an example of a substituted alkyl group,

  mention may be made of the 2-hydroxyethyl group.

  Among the mordants that correspond to the preceding formulas,

  mention may be made especially of protonated polyvinylimidazoles.

  Particularly useful mordants are those which comprise the units corresponding to the following formula

- 15 CH - CH -> -

R5

6 _ 7

  (CH2) R8o: R5 represents an alkylene radical of 1 to 4 carbon atoms, such that the methylene, ethylene and butylene groups, R and R, which may be identical or different, each represent an aryl or aralkyl radical, or alkaryl of 6 to 20 carbon atoms or an alkyl group of 1 to 10 carbon atoms; n is 0, 1 or 2, R is methyl or phenyl, and X is an anion such as chloride, bromide, nitrate, methosulfate, p-toluenesulfonate, etc. The polymeric mordants used in the mordant layer of the photographic product according to the invention are either homopolymers or copolymers. Examples of useful mordants include those which contain recurrence patterns as described above and

  other recurring motifs derived from monomers without any action of inte

  These other reasons represent up to 75% by weight of the mordant.

  The term "interference-free recurrence patterns" means that these patterns do not chemically or physically interfere with the mordant properties of the mordant with respect to the fixation of the anionic dyes. Monomers which provide such recurring units without interference action include optionally substituted olefinic compounds such as olefins, substituted olefins, for example styrene and substituted styrenes, alkyl acrylates and methacrylates, and derivatives thereof. of these monomers. It is possible

  polymeric mordants useful in the photographic products

  the invention are crosslinked to provide polymer chains

  crosslinked by covalent bonding by di-

  such as groups derived from divinylbenzene and ethylene dimethacrylate. When these difunctional crosslinking groups are present, they represent a proportion by weight, relative to

  the set of monomers present in the copolymer monomer mixture

  sand useful for preparing these crosslinked polymers, between 0.1% and 10%, preferably between 0.1% and 2%. Examples of copolymers

  useful in the mordant layer of the photographic product according to the

  are copolymers which are prepared by copolymerization

  of a monomer mixture which contains (a) 25% to 99% by weight of mono-

  Mothers supplying patterns corresponding to one of the formulas described above, (b) 1% to 75% by weight of monomers providing recurrence patterns without interference action and (c) 0 to 10% by mass of a

  difunctional crosslinking agent.

  Although polymeric mordants as described above are

  particularly useful, non-polymeric compounds can also be used.

  long chain mothers comprising the cationic group necessary for etching anionic dyes, non-polymeric compounds such as

  cetyltrimethylammonium bromide and 4-octadecyl-N-

  methylpyridinium. Examples of mordants useful in the photographic products according to the invention include the polymers defined below, the monomer ratios being molar ratios:

TABLE I

Mordant Name

  M1 Copolymer of styrene and 3-maleimido chloride

  propyl-N, N-dimethyl-N-benzylaamonium (1: 1) m 2 N-allyl-N, N-dimethyl-vinylbenzylammonium polyvinyl chloride M3 Polyvinylimidazole - (this compound becomes cationic when one of the nitrogen atoms of the imidazole group is protonated in a

acid bath).

  M4 N, N-dimethyl-N-propargyl-vinylbenzyl polybromide

ammonium

  M5 Cepolymer of styrene and N-allyl-N

  dimethylvinylbenzylag-onium (1: 1) m TABLE I (continued) Name Polyvinylpyridinium acetate or Nvinyloxycarbonylmethylpyridinium polychloride NN-dimethyl-N-propylvinylbenzylnmmonium poly bromide N, N, N-triethylvinylbenzylammonium chloride

  N, N-dimethyl-N-propargyl-vinylbenzyl chloride polychloride

ammonium

  Copolymer of N, N, N-trimethylvinylbenzyl chloride

  ammonium and ethylene dimethacrylate (93: 7) m

  Copolymer of N-allyl-N, N-dimethyl-N-vinyl bromide

  benzylammonium and divinylbenzene (95: 5) m

  Copolymer of styrene N-allyl-N, N-dimethyl bromide

  vinylbenzylammonium and divinylbenzene (49: 49/2) m

  N-2-butenyl-N, N-dimethyl-vinylbenzyl-polychloride

ammonium

  Copolymer of styrene and N-allyl-N, N-

  dimethylvinylbenzylammonium (1: 4) m

  Copolymer of styrene and N, N, N-trimethyl chloride

vinylbenzylammonium (1: 1) m

  Copolymer of styrene and (3-acrylamide) chloride

  propyl) -N-benzyl-N, N-dimethylammonium (1: 1) m N-benzyl-N, N-dimethyl-vinylbenzylammonium chloride

  Copolymer of styrene and N-butyl-N, N'-di-chloride

methyl-vinylbenzylammonium (1: 1) m

  Copolymer of 1-vinylimidazole and 3-benzyl chloride

  1-vinylimidazolium (1: 1) m 1,2-dimethyl-5-vinylpyridinium poly p-toluenesulfonate

  Polychloride of 1-benzyl-2-methyl-5-vinylpyridinium.

  Polychloride of 1-benzyl-2-methyl-5-vinylpyridyrimide

  N-carbamoylmethyl-N, N-dimethylvinylchloride

benzyl

  N-cyclohexyl-N, N-dimethyl-vinylbenzyl polychloride

ammonium

  N, N-dimethyl-N- (3-methyl-2-butenyl) vinyl chloride polychloride

benzyl

  Copolymer of styrene and N, N, N-trimethyl chloride

vinylbenzylammonium (1: 2) m

  N, N-dimethyl-N-isobutyl-vinylbenzyl polychloride

ammonium

  Poly (N- (2-acrylamido-2-methylbutyl) -N, N-

dimethyl-N-benzylammonium

  N, N, N-trimethylvinylbenzylammonium polychloride.

  Binding M6 M7 M8 M9 M10l M11 M12 M13 Ml4 M15 M16 Mi7 M18 M19 M20 M21 M22 M23 M24 M25 M26 M27 M28 M29 TABLE I (continued) Name

  Copolymer of styrene and N-benzyl-N, N-Chloride

  dimethyl-4-vinylbenzylammonium (1: 1) Polychloride of P, P, P-trioctylvinylbenzylphosphonium

* Copolymer of styrene and N, N, N-trihexyl chloride

vinylbenzylammonium (1: 1) m

  Copolymer of styrene and N, N, N-trimethyl chloride

vinylbenzylammonium (1: 1) m

  Copolymer of styrene and N-benzyl-N, N-Chloride

  dimethylvinylbenzylammonium and divinylbenzene

(49: 49: 2)

  m N-vinylbenzylpiperidinium polychloride

  N, N, N-trimethyl-4-vinylphenylcarbamoyl polychloride

  methylammonium N-acetonyl-N, N-dimethyl-vinylbenzylammonium chloride

  N, N-dimethyl-N-methoxycarbonylmethylchloride

  vinylbenzylammonium 1-Vinylbenzylpyridinium Chloride N-methyl-N-vinylbenzylpyrrolidinium Chloride N-methyl-Nvinylbenzylpipedidinium Chloride N-methyl-Nvinylbenzylmorpholinium Chloride N, N-dimethyl-Nvinylbenzylanilinium Chloride

  Copolymer of styrene and N-cyclohexyl chloride

  N, N-dimethylvinylbenzylammonium and divinylbenzene

(49: 49: 2).

  Mordants useful in photographic products according to the invention

  This process may be prepared by well-known methods such as those described in, for example, British Patent 1,261,925 and United States Patents 3,488,706, 3,557,066, 3,625,694, 3,709,690, 3. 770,439, 3,758,445, 3,773,509, 3,859,096, 3,898,088, 3,944,424 and 3,958,995.

  The optimal grip by biting the bite layer of the photo-

  graph according to the invention will depend on various factors such as mass

  the etching power of the mordant, the photopolymer used

  in the photocurable layer adjacent to the mordant layer, the processing conditions and the qualities of the dye image formed. A mordant title gap of the mordant layer

  useful is between 1 mg and 30 mg of mordant per square decimetre,

  in the range of 2 mg / dm to 16 mg / dm 2.

  Mordant M1430 M31 M132 M33 M34 M35 M36 M37 M38 M39 M40 M41 M42 M43 M44 The photopolymer and biting layers of photographic products

  according to the invention do not usually support themselves, that is,

  that is, the mordant layer is usually applied to a carrier and the photopolymer layer is applied to the mordant layer. The usual photographic supports are useful as supports for the photographic products according to the invention. Useful supports include transparent supports such as clear films, but opaque or translucent supports are also useful, such as photographic paper carriers. A particularly useful support is the polyethylene terephthalate films. Other useful supports are described, for example, in the journal "Research Disclosure", December 1978, page 28, article 17 643. The support usually comprises one or more sublayers for modifying the surface properties of the support and increasing

  the adhesion of the mordant layer on the support.

  The layers of the photographic product according to the invention are habitul -

  applied to the support from aqueous solutions by means of

  customary bedding compositions, such as those described in the aforementioned reference. Coating adjuvants can also be used in solutions

Sleeping.

  It is useful to apply on the photopolymer layer of the product

  according to the invention an overlay which does not alter the exposure

  tion or treatment, in particular the incorporation of dyestuff by

  bibition. A useful overlayer is an overcoat of polyvinylpyrrolidone.

  The cationic mordant layer of the photographic product according to the invention

  vention is advantageously in a position adjacent to the polyester layer

  photosensitive ionomer and it is usually unfavorable to have a

  tercouche located between the cationic mordant layer and the poly-

  light-sensitive ionomer ester, because the continuous patterned dye image formed in the photographic product is usually altered by the presence of this interlayer. However, if an interlayer is present between the cationic mordant layer and the light-sensitive polyester ionomer layer, this interlayer must comprise a substance which does not alter the photosensitive properties and the other properties of the polyester ionomer layer and which does not alter not the etching properties of the mordant layer. The composition of the interlayer will depend on various factors, in particular the mordant and the photosensitive polyester ionomer

  used, the dye used for the imbibition, the conditions of treatment

  and the qualities of the dye image formed. Such an interlayer comprises, for example, gelatin, polyvinyl alcohol or polyvinylpyrrolidone. The cationic mordant layer and the photosensitive polyester-photosensitive layer of the photographic product, imbibing dye image former, according to the invention are said to be "superimposed" when they are

  arranged in the photographic product in such a way that they

  put the formation of the dye image by imbibition. These layers are superimposed when, according to a preferred embodiment, the cationic mordant layer and the photosensitive polyester ionomer layer are adjacent to one another and it will also be said that these layers are superimposed when a interlayer is present between the

  cationic mordant layer and the photo-ionomer polyester layer

sensitive.

  For the exposure of the photopolymer layer, it is usual to use

  ultraviolet radiation, but other radiation to which the sensitized photopolymer is sensitive, for example

  laser radiation sources and the usual light sources. The-

  clearly bright and the duration of the exposure following an image must be sufficient to harden the photopolymer to a degree

  as one can carry out the further development. The methods of ex-

  usual contact position are also useful for exposing next

  an image the photographic product according to the invention for the purpose of

  paint images of superimposable dyes to form a color proof. After exposure following an image, product development

  photographic is performed by a simple rinsing with water. We can use

  ser, either distilled water or tap water. It is also possible to use aqueous solutions which contain constituents such as metal ions which do not alter the photopolymer layer and the mordant layer of the photographic product according to the invention. following

  another embodiment, the development can be carried out using

  reading a mixture of water and an appropriate organic solvent such as

  ethanol. The aqueous development solutions used can

  keep a low concentration of a basic compound such as sodium hydroxide. Avoid using aqueous solutions that contain

  anions at a concentration sufficient to inhibit further imbibition.

  anionic dyes. This development therefore consists of eliminating

  at least a portion of the uncured image areas of the photopolymer layer, after imagewise exposure, by a

  water or by a solution as defined above.

  The optimum conditions for development, in particular the conditions

  temperature, pressure and time depend on a number of

  such as the nature of the photopolymer and mordant used, the dye to be etched and the qualities of the formed image. This development step is usually carried out at room temperature, at about 21 ° C, and at atmospheric pressure. The duration of development is a function of the factors as described above, as well as the means

  implemented for development. A useful rinse time is usually

  between 2 s and 1 mn.

  As mentioned above, the development therefore comprises rinsing with water or with aqueous solutions, this rinsing consisting of a washing, spraying or immersion in water or an aqueous solution, or by a water treatment of the exposed photographic material, which treatment is sufficient to remove unexposed areas of the photopolymer layer to facilitate subsequent imbibition of the anionic dye into the mordant layer of unexposed areas of the photographic material. The development step of removing the unexposed areas of the photopolymer layer further enables the dye image of the unexposed areas of the photographic material to be transferred more rapidly to a dye image-receiving layer containing a mordant. According to another embodiment, the washing can be carried out by a slight mechanical friction by means of an impregnated material

  of water. The fraction of the photopolymer is within the exposed ranges of the

  photographic duit according to the invention, after rinsing, will be a function of

  the lumination received by these exposed areas of the photopolymer layer.

  Development does not eliminate the mordant layer and is usually

  carried out by means of a simple pu! verisation with tap water.

  After developing the photographic product according to the invention, at least one anionic dye is incorporated by imbibition into the mordant layer. According to a variant of the process according to the invention, at least one

  anionic dye is incorporated into the mordant layer of the photo-product

  graph through unexposed areas of the photopolymer couchd that were not flushed out. In these two embodiments, the anionic dye is at least temporarily immobilized in the mordant layer. This imbibition of the anionic dye on the mordant is usually carried out by immersing the photographic product in

  an appropriate solution of anionic dye. Such a solution is

  and preferably an aqueous solution or a tempered aqueous solution of an anionic dye, as described hereinafter in more detail. The

  optimal conditions for the anionic imbibition in the photo-product

  The graph depends on several factors such as the nature of the mordant of the anionic dye and the photopolymer used and the solvent contained in the solution of the anionic dye, as well as the qualities of the image.

  formed. A useful life of immersion of the photographic product in the solu-

  anionic dye is from about 10 s to 150 s,

  tagously between 25s and 75s. The temperature of the anionic dye solution is usually between 100C and 40C, preferably between 15WC and 30C. When the desired amount of dye incorporated by imbibition into the photographic material is reached, the photographic product is taken out of the dye solution, and the photographic material can be rinsed to remove excess anionic dye. Each

  These processing steps are usually performed at the same temperature.

  for example in the temperature range between 100C and 40'C. At the end of the treatment, the photographic product is dried by heating, for example by means of hot air pulsed. We can also dry

  the photographic product-without heating.

  Many anionic dyes can be used to form the dye image in the photographic product of the invention. The choice of dye depends on several factors, in particular the mordant used, the processing conditions used and the qualities of the image.

  formed. For example, when it is desired to form different dye images,

  overlapping rents to form a color proof, we choose

  anionic dyes which provide dye images by a process

  subtractive, that is, blue-green, magenta and yellow dyes. Black anionic dyes are also useful. Examples of blue-green and magenta dyes are described in U.S. Patent 4,220,700 and correspond to the following formula: R13 N = N R16 R14 OH ElN-SO2 R15 o: R13 represents an acceptor group of electrons, such as -S 2 CH 2 CH 2 COOH sulfamoyl, carboxyl groups, -SO 3 H, SO 2 CH 3, alkyl of 1 to 3 carbon atoms,

-SO 2 O, -SO 2 CH (CH 3) 2,

223;

-SO2CF3;

R14 such

  R is an electron acceptor group / that groups -SO 2 CH 2

  CH2COOH, -SO2NHCH2COOH, halo, -SO2NHC (CH3) 3, -SO2N (C2H5) 2, -SO2NHC3,

-SO 2 N (CH 3) 2, -SO 2 O;

2 32 2 \ _o

C2H5 0

  R 2 is an electron-accepting group, such as an alkyl radical of 1 to 3 carbon atoms, including methyl, ethyl, and propyl, the groups corresponding to the following formulas: ## STR5 ## Mfnn., SNH9 S03H

S02H2 ;; C

  R represents a nitro group, a hydrogen or halogen atom such that

  chlorine, bromine, iodine and fluorine.

  A particularly useful class of blue-green dyes is that which corresponds to the previous formula in which the group R is a

  nitro group in para and R13, R14 and R15 are as defined above.

  above. An example of a useful magenta dye is Acid Fuchsin (Color

Index 1740).

  Examples of useful yellow dyes are also described in U.S. Patent 4,220,700 and correspond to the following formula: R17 R OH

- N-R20

N = N 1 R

  R19 is -SO NHCH2COOH, -SO3H, -SO2NH2, halo, carboxyl or -CONHCH2COOH; R 18 represents an alkoxy radical of 1 to 3 carbon atoms, a hydrogen atom, a halogen atom or a carboxyl group, R 19 represents a hydrogen atom, a hydroxyl radical, alkyl of 1

  to 3 carbon atoms, such as methyl, ethyl and isopropyl, a group

  cyano, carboxy, carbonamido or carbamoyl, and R is a group which corresponds to the following formula: R21

  the radical R21 represents a hydrogen or chlorine atom or a radical

cal -SO3H or -COOH.

  Other examples of useful yellow dyes are described in U.S. Patent 4,220,700 and correspond to the following formula: R22

N = N N <\ 23

  R s% R o8: R represents an alkyl radical of 1 to 3 carbon atoms, and

  R represents a group -C 2 H 4 SO 3 H, alkyl of 1 to 3 carbon atoms;

  Examples of useful black dyes include dyes

  water-soluble black azo compounds, advantageously bi-coloring dyes

  black azoids which have the ability to be incorporated by

  imbibition in the photographic product according to the invention.

  A useful class of black dyes is that which corresponds to the following formula: ## STR1 ##

R2 "/ \. / \ ./ -01

  N - x0- _R2 7 \. -. R2 s / R 2 s o: S03H, pyridine, -s3., U2H20. -s. (C2O) 3. -s O2H, -COO or

-CH_2OH;

  R25 and 27 each represent a hydrogen atom, a group -OH, -oc5, -o-cS2C-CH2H% o-CO2R,

-CH OHCHOE O

  R 26 represents a hydrogen atom, a -COOH group, -CH 2 OH, or

-CONRCH COOH

  Table II below includes a number of bi-coloring dyes.

useful black azoques.

TABLE II

CH, \

N-N-- / O \,

  ## STR5 ## O, OO / SOH] pyridine NaSO.sub.8, ## STR2 ## OH -COOH

N N-O

H COOH NumN-KcO H OSO Na: OH

l 01 0 -o.

* - *

BN - *. / \.

N + vi SO3 NaN H1.

It C. -.

NaiN- \ O /

3IN. H03 '

* -OH SO

I \ / -

  Other examples of useful dyes are described in the review

  "Research Disclosure", May 1978, Article 16 976.

  Useful dyes are prepared by standard synthetic methods.

  The optimum dye concentration in the solution used depends on several factors, in particular the dye and the mordant used,

  processing conditions and qualities of the formed image. An inter

  Useful concentration range is between 0.1% and 5.0% by weight of dye, preferably between 0.2% and 1% by weight. The solvent used in the anionic dye solution is an aqueous solution or. an aqueous solution buffered at a pH appropriate to the dye contained in the solution. For example, a useful anionic dye solution contains potassium phosphate and sodium hydroxide at a concentration of

  sufficient to obtain a pH of about 10.0.

  By the appropriate choice of dyes, it is possible to prepare a photo-

  graphic bearing a dye image to form a color proof. If it is necessary to correct one or more of the original color negatives from which the color proof is prepared, it is possible to practice this correction and prepare a corrected color negative, and from this corrected negative one can prepare a

  color proof using one or more photo products

  graphics according to the invention to obtain one or more images of different colors for forming the test by superposition. As a result, it is not necessary to prepare printing plates,

  to mount these plates on the printing presses and to draw

  until the corrected color negatives were obtained

appropriately.

  The dye image formed by imbibition can be transferred into the

  photographic product according to the invention of this first photographic product.

  which functions as a transmitting layer on a dye image receiving element. The latter image receiving element comprises a support and a receiver layer, applied on the. medium, which contains a cationic mordant having a higher etching power than

  that of the mordant contained in the emitting layer. The powers of

  relative wetting of the mordant layers are determined by comparative etch tests well known in the photographic art,

  assays as described in U.S. Patent 3,958,995.

  By transfer of the dye images formed in several photographic products according to the invention, used for the separation of the colors, on a single dye image-receiving element, the transfer being carried out in exact registration, it is possible to form a test to

several colors.

  The receptor layer may contain one of the polymeric mordants as described in Table I, provided that the mordant of this receptor layer has an etching power greater than that of the mordant of the emitting layer. In addition, the receiving layer may comprise a binder such as gelatin and tanning agents such as formaldehyde and bis (vinylsulfonylmethyl) ether. The optimum mordant and binding concentration, such as gelatin, in the receptor layer depends on several factors such as the nature of the dye to be transferred, the conditions of the

  transfer and the qualities of the transferred image. A concentration interval

  Useful mordant treatment in the image-receiving layer is between about 5.0 mg / dm and 50 mg / dm. A useful concentration range in binder contained in the receiving layer is between 0 and 60 mg / cm 2. A particularly useful receiving layer comprises a mordant at a titer of between 10 mg / dm and 30 mg / dm and gelatin at a titer. including

2 2

  between 30 mg / dm and 50 mg / dm, this gelatin containing a suitable tanning agent

prayed, such as formaldehyde.

  The image-receiving element advantageously comprises a suppott such as a support described for the preparation of the photographic product according to the invention. The transfer of the dye is advantageously carried out in the presence of a saline solution or a mixture of water and alcohol. For this purpose, either the emitter layer, the receiver layer or the two layers are

  impregnated in such a solution for a sufficient period of time

  to ensure that these layers are imbued with a sufficient amount of

  saline or mixture of water and alcohol. The duration of the impregnation is usually between 10 s and 100 s, then the two layers are brought into contact with each other to form a composite product and the two layers are compressed against each other, for example by means of rollers. These two layers remain in contact with each other for a sufficient time so that the desired amount of dye passes from

  the emitting layer at the receiving layer, this duration being habitually

  between 5 s and 100 s. Then the two layers are separated.

  In another embodiment, the receiving layer is prepared by incorporating the saline solution for transfer into this receptor layer. Brief impregnation, for example for 5 s, of the diaper

issuer is then useful.

  Choosing the optimal saline solution to transfer the dye

  depends essentially on the solubility of the etched dye. Solu-

  Useful salt formulations include solutions of potassium chloride, bromide, iodide and potassium thiocyanate and sodium salicylate. These salt solutions are used at concentrations of between 0.1 mole and 1.0 mole per liter. When water and alcohol solutions are used in the process of

  these solutions include mixtures in which the concentration of

  alcohol can reach up to five times the volume concentration of water. It is possible to use methanol, ethanol and isopropanol

among the useful alcohols.

  It may be useful to recolor the emitting layer after

  by plunging this emitting layer into the same color solution

  which has been used for imbibition.

  Fig. 1 shows a photographic product according to the invention imbibing dye image-forming agent;

  FIG. 2 represents this same photographic product after exposure.

  following an image that hardens the exposed areas;

  FIG. 3 represents this same photographic product after exposure.

  following an image, after its development by water which eliminates the unexposed areas and after imbibition of at least one dye in the mordant layer of the photographic product; Fig. 3a shows the photographic product according to the invention after imagewise exposure and imbibition of at least one dye in the mordant layer without developing or removing at least a portion of the unexposed areas of the photocurable layer; FIG. 4 represents the sensitometric curves giving the density

  according to the lumination, respectively for a product according to the in-

  the invention corresponding to Example 1 (y = 2.1) and Comparative Example 1 (ye 13.0);

  FIG. 5 represents a sensitometric curve of a photo-product

  graph corresponding to Comparative Example 2 which provides an image whose contrast is too high (y = 11, C); FIG. 6 represents two sensitometric curves respectively corresponding to the product of example 2 according to the invention (y = 2.0) and to the product of comparative example 3 (y = 13.0), FIG. 7 represents two curves sensitometric values corresponding respectively to Example 3 (y = 1.8) and Comparative Example 4

(y = 10.5).

  FIG. 1 represents a photographic product according to the invention which comprises a support 1 on which is applied an underlayer 2, a

  mordant layer 3 and a photocurable polyester ionomer layer 4.

  The underlayer 2 promotes the adhesion of the mordant layer 3 to the support 1 After exposure according to an image of the photographic product corresponding to FIG. 1, a product according to FIG. 2 is obtained which comprises a range 5 which is not not exposed or image hardened in the photocurable polyester ionomer layer 4. The beaches of the

  layer 4 of the product of Figure 2 which are exposed are cured.

  After developing the product of FIG. 2 by rinsing with water and then imbibing a dye into the photographic product, a product is obtained as shown in FIG. 3, where the dye passes through the range 6 which has been removed at developing the photocurable polyester ionomer layer 4 to impregnate the strip 7 of the

biting 3.

  A variant of the product shown in Figure 3 is the product of Figure 3a in which the range 6 of the layer 4 corresponding to the product of Figure 3 is not removed by development, but this range that was not exposed is sufficiently permeable and uncured to allow passage of a sufficient amount of dye to etch the layer 3. The non-tanned range of Fig. 3a is not removed by development, but the dye passes through this range. of layer 4 for

  impregnate the beach 9 of the mordant layer 3.

  The following examples illustrate the invention.

EXAMPLE 1

  A photographic product according to the invention, a formator

  imbibition dye image, the formed image being a positive image

  continuous pattern, produced as shown in Figure 1.

  A layer of mordant is applied to a film of polyethylene terephthalate which is subjected to a layer of gelatin. The mordant layer comprises the following constituents (the titers are in mg / dm)

  copolymer of styrene, N-cyclohexyl-N, N-dimethyl chloride

  vinylbenzylammonium and divinylbenzene, in the mole ratio

49/49/2 (4.3)

  gelatin (2,2) - formaldehyde (0,22) TM - surfactant 10G, from Olin Corporation, which is a

  p-isononylphenoxypolyglycidol (0.13).

  The water-soluble photocurable polyester ionomer layer

  which is applied to the mordant layer comprises the constituents

after (the titles are in mg / dm):

  succinate copolymer, phenylenebisacrylate, 5- (4-sodiosulfide)

  1,4-cyclohexylenebisoxyethylene isophthalate (fophenoxy) isophthalate in the ratio by mole 15/55/30 (5.83)

  sensitizer of the polyester ionomer consisting of p-toluene

  3- (7-methoxy-3-coumarinoyl) -1-methylpyridinium sulfonate

(0.29).

  The photographic product thus prepared is exposed according to an image, through a standard color scale, by means of a Kalvar type mercury vapor lamp, Kalkard 200 exposure unit, of the Company.

  Kalvar Company, the exposure time being 78 s.

  Subsequent processing comprises the following steps: (1) the exposed photographic product is rinsed under a stream of distilled water for 30 seconds, (2) a cotton pad impregnated with distilled water is applied to the photographic product for a short time time, (3) the product is immersed in an aqueous buffered solution at pH = 10 and containing the blue-green dye corresponding to the following formula:

S02CH 2CH2C02H

0 2N _ (N, SO2NHCH2CO2H

He N-. OH

N = Q

CH3-S02

  at a concentration of 0.4% by mass, the immersion time being equal

at 60 s.

  (4) finally rinse the product under running water for 20 S.

  Each of the treatment steps is carried out at room temperature.

* biante, about 21 C. A continuous patterned image is obtained whose contrast, determined by reflection in red light when the product is in contact with a white printing paper, is equal to 2.1, as represents

in figure 4.

COMPARATIVE EXAMPLE 1

  The procedure of Example 1 is reproduced, but a photographic product, apart from the invention, is prepared which comprises the same

  layer of mordant that the photographic product of Example 1 on the-

  a layer of photo-curable polyester which is not a polyester ionomer and which comprises the following constituents (the titers are in mg / dm)

  Copolymer of 1,4-cyclohexyl succinate and p-phenylenebisacrylate

  hexylenebisoxyethylene in the molar ratio 45/55 / (5.83)

  Sensitizer of Example 1 (0.29).

  This photographic product is exposed imagewise as described in Example 1, then the following treatment is carried out at 21 ° C: 1) the exposed photographic product is immersed in cyclohexanone for 30 s, 2) lightly applied a cotton swab impregnated with cyclohexanone for a short time, 3) the product is then immersed in an aqueous solution containing the blue-green dye of Example 1, at a concentration of 0.4% by weight, for 60 minutes. s, and

  4) rinsing the product under running water for 20 s.

  A very high contrast dye image is thus obtained whose value is equal to approximately 13.0 after determination as described in Example 1. The corresponding sensitometric curve is represented

in figure 4.

  COMPARATIVE EXAMPLE 2 The procedure of Comparative Example No. 1 is reproduced, but

  does not develop in cyclohexanone and dive directly

  the photographic product exposed in a solution of acid Fuchéine dye, at a concentration of 0.4% in a solvent consisting of one part of water to nine parts by volume of acetone, the imbibition

  being performed at 21 ° C for 3 minutes. The product is rinsed quickly

  photographic duit with distilled water and we get a dye image

  with a high contrast value of about 11.0, the determination

  tion being performed as described in Example 1. The sensitometric curve

  obtained is shown in FIG.

  COMPARATIVE EXAMPLE 3 A dye image-forming photographic product is prepared by applying to a polyethylene terephthalate film, substrates with a gelatin sub-layer, a mordant layer as described in Example 1, and then apply a layer of photosensitive polymer to the mordant layer. The layer / otopolymer was applied using a solution containing 7.67 ml of Kodak Photo Resist resin from Eastman Kodak Company, as described in Example 1 of U.S. Patent 3,255,002. this polymer being diluted with 25 ml of 2-methoxyethyl acetate, the photopolymer layer being applied to the mordant layer at a wet measured titre of 0.254 ml / dm. The photographic product is then dried, then exposed imagewise through a conventional shade scale using a mercury vapor light source, such as the lamp.

  Kalvar Kalkard 200 in exposure unit, for 96 s. We treat

  The photographic material exposed at 21 ° C is then as follows: (1) the product is immersed in a developer which comprises two parts by volume of 2-methoxyethyl acetate and eight parts by volume of xylene, the development being carried out in stirring for 60 minutes, 2) the product is then immersed in an aqueous solution of Fuchsin acid dye at 0.4% by weight, and

  3) a rapid rinsing is carried out with distilled water.

  This gives a high contrast image whose value is 13.0 after reading by reflection in green light in contact with white paper. The sensitometric curve obtained is shown in FIG.

EXAMPLE 2

  An image forming photographic product as described in Example 1 is used, and then exposed in an image as described in Example 3. The exposed photographic product is then processed as described in Example 1.

  Example 1, but the dye Fuchsin acid is used as the dye.

  A con! Sinu patterned dye image is obtained with a contrast of 2.0. The sencitometric curve obtained is shown in FIG.

figure 6.

EXAMPLE 3

  A photographic product as described in Example 1 is prepared and exposed as described in this example, and then treated at 21 ° C., in the following manner: 1) The product is immersed in an aqueous solution acid fuchsin dye, at a concentration of 0.4% by weight, for 60 s, and

  2) The photographic product is rinsed under running water for 20 seconds.

  A continuous patterned dye image is thus obtained.

  contrast is equal to 1.8. The sensitometric curve obtained is

shown in Figure 7.

COMPARATIVE EXAMPLE N 4

  A photographic product is prepared and exposed according to an image as described in Comparative Example No. 3, and then treated at 21 ° C, as follows: 1) The photographic product is immersed in a dye solution 0.4% acid fuchsin in a solvent comprising one part by volume of water and nine parts by volume of 2-methoxyethyl acetate, the imbibition being carried out with stirring for 60 seconds, and

  2) a rapid rinsing is carried out with distilled water.

  A high contrast dye image having a value of 10.5 is obtained. The sensitometric curve obtained is represented in FIG.

figure 7.

EXAMPLE 4

  The procedure of Example 1 is reproduced, but the polyester ionomer used in this example is replaced by the copolymer of succinate, p-phenylenebisacrylate and 1,4-cyclohexylenebisoxyethylene 3,3'-sodioiminodisulfonyldibenzoate in the molar ratio. 25/60/15 in the photosensitive ionomer polyester layer of the photographic product according to the invention. The photographic product is exposed in an image and then treated as described in Example 1. This gives an image

of continuous dye.

EXAMPLE 5

  The procedure of Example 1 is reproduced, but the polyester ionomer used in this example is replaced by the polymer of the succinate,

  p-phenylenebisacrylate and 1,4-cyclo-5-sodiosulfoisophthalate

  hexylenebisoxyethylene in the molar ratio 20/60/20. The following is exposed

  the photographic product and treat it as described in

  Example 1. A continuous patterned dye image is obtained.

EXAMPLE 6

  The procedure of Example 1 is reproduced, but the polyester ionomer used in this example is replaced by the polymer of the succinate,

  p-phenylenebisacrylate and 5- (4-sodiosulfocyclohexyloxy) -1,3-cyclohexyl

  1,4-cyclohexylenebisoxyethylene hexanedicarboxylate in the ratio

  in mole 15/55/30. This photo product is then exposed according to an image.

  graphic and is treated as described in Example 1. This gives

  a continuous patterned dye image.

EXAMPLES 7 to 9 -

  The procedure of Example 1 is reproduced, but the sensitizer used in this example is replaced by one of the sensitizers described below. Example Sensitizer

7 O

  0 i D FS FS FS FS FS FS,,,,,

8 O

read CH3

9 O

  ZnC13, CH3 You can also use other sensitizers in the products

  according to the invention, and in particular the sensitization

  as described in US Pat. No. 4,147,552. EXAMPLE 10 - Proof Obtained by Overlaying Three Color Images

  Three photographic image-forming products of color are exhibited

  As shown in Example 1, there is an image, respectively, of a positive, continuous, red, green and blue color separation using a pulsed xenon light source, such as the NuArc lamp. Plate Maker TM in exposure unit for 54 s. The three photographic products are then treated in the following manner: 1) rinsed with distilled running water for 30 seconds, 2) a cotton pad impregnated with distilled water is applied for a short period of time, 3) the product is immersed in an aqueous dye solution, as described below, at a concentration of 0.4%, for 60 seconds, and

  4) rinse under running water for 20 s.

  The blue-green dye to form the positive image / exposure in it red is the blue-green dye described in Example 1. The magenta dye

  to form the positive image by exposure to green light is a color

  which corresponds to the following formula:

 / \ / \ *

\ o / \, / I i N ^ O 'S-i /

HO N

He I iHCOCH3

  The yellow dye to form the positive image by exposure in lu-

  blue is a dye which corresponds to the following formula:

II I

I

N \ SO2 NHCX2 CO2 H

o

  All dye solutions include a concentrated dye.

  0.4% 7. in bulk and are buffered at pH 10.0.

  Positive dye images obtained in registration are superimposed

  rigorous and one obtains a continuous modeling of good quality.

24'95792

Claims (8)

  1 - An imbibition dye image-forming photographic product which comprises successively: a) a support on which is applied,   b) a layer that contains a cationic mordant capable of dancer an anionic dye, and   c) a layer of photocured photopolymer sensitized   deposited on the mordant layer, characterized in that the photopolymer layer essentially comprises a light-sensitive ionomeric polyester. 2 - Photographic product according to claim 1, characterized in that the light-sensitive ionomeric polyester corresponds to the following formula I! I1 V o c ---- C oc] H cli2 o -.... ocli CHZ 0- 0 * -R - I! - C-CH-CHR-KO, -CH-CHC 0 R'O   R 1 represents a straight or branched chain alkylene group of 2 to 10 carbon atoms, a cycloalkylene group of 5 or 6 carbon atoms, or an aliphatic ether group of 3 to 12 carbon atoms, R 2 represents an aromatic group. from 6 to 12 carbon atoms, R represents a straight or branched chain alkylene group of 2 to 10 carbon atoms, R represents an ionic group selected from the groups which correspond to the following formulas: ## STR5 ## -isi -   \, / o I $ o2 iSOs SO, + / '\. O S; where M is an ion / alkali metal or ammonium ion, x is a mole percent inclusive of 50 and 100, v is a mole percent inclusive of 0 and 35, w is a mole percent of 0 to Y represents a mole percentage of between 50 and 80,   z represents a mole percentage of between 15 and 40.   3 - Photographic product according to claim 2, characterized in   what the polyester ionomer is the copolymer of succinate, p-   phenylenebisacrylate, and 1,4-cyclo-5-sodiosulfoisophthalate   hexylenebisoxyethylene in the molar ratio 20/60/20.   4 - Photographic product according to claim 2, characterized in   the polyester ionomer is the copolymer of succinate, p-   phenylenebisacrylate and 5- (4-sodiosulfophenoxy) isophthalate   1,4-cyclohexylenebisoxyethylene in the ratio by mole 15/55/30.   Photographic product according to claim 2, characterized in   the polyester ionomer is the copolymer of succinate, p-   phenylenebisacrylate and 3,3'-sodioiminodisulfonyldibenzoate   1,4-cyclohexylenebisoxyethylene in the ratio by mole 25/60/15.   6 - Photographic product according to claim 2, characterized in   what the polyester ionomer is the polymer of succinate, p-   phenylenebisacrylate, 5- (4-sodiosulfohexyloxy) -1,3-cyclohexane-   1,4-cyclohexylenebisoxyethylene dicarboxylate in the ratio of mole 15/55/30.   7 - Photographic product according to any one of the claims   1 to 6, characterized in that the mordant is a protonated polyvinylimidazole.   8 - Photographic product according to any one of the claims   1 to 7, characterized in that the mordant essentially comprises a polymer containing repeating units corresponding to the following formula: --d T) -   ! Q -Z Z) x o: T represents an organic group and is part of the polymer backbone, Q represents a chemical bond or a linking chemical group Z (at T, XE represents an anion, and Z represents a cationic group.   9 - Photographic product according to claim 8, characterized in.   the mordant essentially comprises a polymer containing repeating units corresponding to the following formula: - (CH2 - CH)   Embedded image R 5 represents an alkylene group of 1 to 3 carbon atoms, R 6 and R 5 represent identical or different groups chosen from aryl, aralkyl or alkaryl groups of 6 to 20 atoms. of carbon and alkyl groups of 1 to 10 carbon atoms, n is 0, 1 or 2, R is a methyl or phenyl group, and X 11 represents an anion.   Photographic product according to any one of the claims   1 to 9, characterized in that the cationic mordant consists essentially of   of styrene polymer, N-cyclohexyl-N   dimethylvinylbenzylammonium and divinylbenzene in the ratio mole 49/49/2.   11 - Method for forming a continuous patterned positive dye image in a dye image forming photographic material   imbibition according to any one of claims 1 & 10,   characterized in that it comprises the following steps: (1) image-wise exposing the photopolymer layer of the photographic material to an activating radiation for curing the photopolymber layer according to this image, (2) optionally developing the layer photopolymer by washing with water and (3) imbibing an anionic dye into the cationic mordant layer through the ranges corresponding to unexposed areas of the photopolymer layer. Process according to claim 11, characterized in that the continuous dye positive dye image is further transferred.   on a receptor layer that contains a cationic mordant that has   a superior etching power to that of the mordant of the product   photographic dye image imager, the trans-   was achieved by providing a color image receiving layer   in contact with the photographic product carrying the dye image formed by imb'oiTition, in the presence of an aqueous solution which promotes the transfer of the aiionic dye.