US3770431A

US3770431A - Photographic elements containing ballasted resorcinols

Info

Publication number: US3770431A
Application number: US00181262A
Authority: US
Inventors: J Gates; I Salminen
Original assignee: Eastman Kodak Co
Current assignee: Eastman Kodak Co
Priority date: 1971-09-16
Filing date: 1971-09-16
Publication date: 1973-11-06
Anticipated expiration: 1990-11-06
Also published as: DE2245445B2; FR2153013A1; FR2153013B1; GB1404470A; CA983765A; BE788926A; DE2245445A1

Abstract

Photographic elements are disclosed which comprise a support and at least one layer thereon containing a ballasted resorcinol. In one embodiment, the ballasted resorcinols are utilized as scavengers for development reaction by-products or contaminants. The ballasted resorcinols are especially useful for scavenging oxidized color developers.

Description

United States Patent H91 Gates, Jr. et a1.

[4 1 Nov.6, 1973 I PHOTOGRAPHIC ELEMENTS CONTAINING BALLASTED RESORCINOLS [75] Inventors: John Warburton Gates, Jr.; Ilmari Fritiof Salminen, both of Rochester, NY.

[73] Assignee: Eastman Kodak Company,

Rochester, NY.

[22] Filed: Sept. 16, 1971 [21] Appl. No.: 181,262

' [52] US. Cl. 96/29'D, 96/3, 96/29 R, 96/56, 96/76 C, 96/77, 96/109 [51] Int. Cl G03c 5/54, G036 7/00 [58] Field of Search 96/56, 74, 87 R,

[56] 9 References Cited UNITED STATES PATENTS 3,312,549 4/1967 Salminen et al. 96/29 D Land 96/3 Yost ct alv 96/74 Primary Examiner-Norman G. Torchin Assistant ExaminerA|fons0 T. Suro Pico Att0rney-R0bert W. Hampton et al.

I 57 ABSTRACT 15 Claims, No Drawings PHOTOGRAPHIC ELEMENTS CONTAINING BALLASTED RESORCINOLS This invention relates to photographic elements and processes of forming images in photographic elements. In one aspect, this invention relates to photographic elements containing a ballasted resorcinol compound. In another aspect, this invention relates to photographic elements which have improved resistance to environmental effects, background stain, etc. In another aspect, this invention relates to improved image transfer systems.

It is known in the art to add various scavenger compounds to photographic elements to retard certain reactions of the left over developers, by-products of the development reactions, atmospheric contaminants and the like. Certain hydroxybenzene compounds 'are shown in US. Pat. Nos. 2,336,327, 2,403,721, 2,728,659 and 2,360,290 to prevent color stain in photographic elements. U.S. Pat. Nos. 3,459,548, 3,287,126 and 3,482,971 discloses scavengers for oxidized developing agents. Polymeric compounds containing appended polyhydroxybenzene groups, such as hydroquinone groups, have been suggested for use to control stain in US. Pat. Nos. 2,710,801 and 2,816,028. However, many of the additives used as scavengers acted as a redox agent, especially in the case of scavenging oxidized developers, and reduced the oxidized developing agent. Also, many of the socalled antistain agents were silver halide developers which could enter in competing reactions with color developing agents. Therefore, improved additives are desirable, especially in color systems such as image transfer systems.

We have now found that certain ballasted resorcinol compounds can be used in photographic elements to improve the image quality and aging properties of the image record. Generally, the photographic elements of this invention comprise a'compound of the formula:

, (inn) .pentadecylenecarbonamido resorcinol and the like.

The photographic elements containing the above ballasted resorcinol compounds have improved image I properties; apparently, these compounds are very effective as'scavengers for by-products or excess ingredithus, can be put in any desired layer of the photo-' graphic element since they will not compete with the developing agents or reactivate oxidized developing agents.

The improvements in image stability with the compounds of this. invention are believed to offer a definite advance in the art; the closely related monohydroxy compounds and the polyh ydroxy compounds wherein the hydroxy groups are not in 1,3-position do not appear to offer-the same improvements when used at similar weight percentage concentrations. Moreover, the present ballasted resorcinol compounds can generally be incorporated in hydrophilic colloid layers with organic solvents having low boiling points, such as acetone, ethyl acetate, etc.; thus thinner coatings can be used compared to couplers requiring large amounts of high-boiling-point organic solvents to achieve uniform dispersion.

In one preferred embodiment, the ballasted resorcinols are present in a photographic element which is processed with a color developing agent.

In another embodiment, the ballasted resorcinols are present in photographic elements in combination with color-forming couplers to scavenge oxidized color developer which does not react with the color coupler.

effectively any excess color developer by forming a col.-

orless' reaction product, thereby eliminating the need for a pigmented masking layer.

In another embodiment, the scavengers of this inven-' tion are used in combinationwith a timing means so that development in the photosensitive element is substantially complete before the scavenger is effectively associated with the development medium.

Inone preferred embodiment, the scavengers of this invention are used in combination with color transfer units, and preferably those transfer units wherein the dye image-receiving layer is integral with the photosensitive element itself or is .provided on a separate support ents in silver halide development reactions, especially color development reactions, When -color developers such as aromaticprimary amines are used in the development reaction, the ballasted resorcinols appear to scavenge the excess developer which may provide discoloration upon aerial oxidation or extraneous oxidato be superposed on the photosensitive element after exposure thereof. In-one embodiment,-elements of this type comprise a film unit which is adapted to be processecl by passing the unit between a pair of juxtaposed pressure-applying members, such as would be found in a camera designed for in-camera processing, comprising:' 0' I i a. a photosensitive element comprising a support having thereon at least one and preferably three photosensitive silver halide emulsion layers, each silver halide emulsion layer having associated therewith a dye 3 image-providing material comprising a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color developing agent to produce a diffusible dye;

b. a dye image-receiving layer; and

c. a rupturable container containing an alkaline processing composition and which is adapted to be positioned during processing of the film unit so that a compressive force applied to the container by the pressureapplying members will effect a discharge of the containers contents within the film unit; the above film unit containing an aromatic primary amino color developing agent, preferably in the rupturable container, and a ballasted resorcinol in a polymeric binder which is capable of reacting with unused aromatic primary amino color developing agent to form a colorless or substantially colorless reaction product.

The ballasted resorcinols of this invention generally require the use of an organic solvent to achieve a uniform dispersion in a hydrophilic colloid layerof a photographic element. However, low-boiling-point organic solvents having a boiling point of less than 100 C., such as acetone, ethyl acetate and the like, are very effective in achieving uniform dispersions of the present scavengers. While high-boiling-point organic solvents, such as coupler solvents, can be used to obtain dispersions, they are generally not employed since it is usually more practical to use low-boiling-point solvents. The ballasted resorcinols can generally be incorporated in photographic elements by any of the techniques employed in the art for dispersing materials of this type which have very marginal water solubility. When they are dispersed in hydrophilic colloid layers they can be dispersed by techniques known for dispersing coupler solvents or by means employing the low-boiling-point solvents to obtain uniform dispersions. The ballasted resorcinols can be employed in any concentration useful for the intended purpose. However, generally lower weight percentages of the present ballasted resorcinols are required to provide an effective scavenging as compared to other compounds used in the prior art for this purpose. We have found that concentrations of from 1 mg. per square foot to about 500 mg. per square foot, and preferably from about5 mg. to 100 mg. per square foot, can be used for most purposes.

The ballasted resorcinols'can generally be located in any layer of a photographic element (including imagereceiving. sheets). The ballasted resorcinols can generally be incorporated in all vehicles used in coating photographic elements including, for example, proteins, cellulose derivatives, polysaccharides, synthetic polymeric substances and the like. In certain embodiments, the ballasted resorcinols are incorporated in hydrophilic, water-permeable colloids, or synthetic polymeric compounds such as dispersed vinyl compounds such as in latex form and particularly those which'increase the dimensional stability of the photographic materials. Suitable synthetic polymers include those described, for example, in US. Pat. Nos. 3,142,568 by Nottorf issued July 28, 1964; 3,193,386 by White issued July 6, 1965; 3,062,674; by Houck et al. issued Nov. 6, 1962; 3,220,844 by Houck et al. issued Nov. 30, 1965; 3,287,289 by Ream et al. issued Nov. 22, 1966; and 3,41 1,91 l by Dykstra issued Nov. 19, 1968. Particularly effective are those water-insoluble polymers of alkyl acrylates and methacrylates, acrylic acid, sulfoalkyl acrylates or methacrylates, those which have cross-linking sites which facilitate hardening or curing described in Smith, US. Pat. No. 3,488,708 issued Jan. 6, 1970, and those having recurring sulfobetaine units as described in Dykstra, Canadian Pat. No. 774,054.

The term nondiffusing used herein has the meaning commonly applied to the term in color photography and denotes materials which for all practical purposes do not migrate or wander through organic colloid layers, such as gelatin, comprising the sensitive elements of the invention. The same meaning is to be attached to the term immobile.

The term diffusible has the converse meaning and denotes materials having the property of diffusing effectively through the colloid layers of the photographic elements, and generally refers to materials which can migrate to any layer of the element during aqueous treatment. Mobile has the same meaning.

The scavengers of this invention can be used in any photographic element where it is desired to immobilize or scavenge an unwanted reaction product or contaminant. In one embodiment, they are used effectively in black-and-white or color photographic products to scavenge unwanted aldehydes. in another embodiment, the ballasted resorcinols are especially useful in color photographic elements which employ a color silver halide developer during processing.

The term color developer is understood to refer to that class of compounds known in the art as color silver halide developers, and generally refers to silver halide developers which in their oxidized form will couple with a color-forming coupler. Generally, these developers are aryl compounds having at least one NH group thereon.

In a highly preferred embodiment of our invention, the ballasted resorcinols are used in image transfer systems including those transfer systems wherein the image-receiving layer remains integral with the photosensitive emulsion, as well as those where the imagereceiving layer is separated from the photosensitive layers.

In one embodiment of our invention wherein the image-receiving element is separate from the photosensitive element, the novel dye image-receiving element comprises a support having thereon the following layers:

a. a scavenger layer comprising a ballasted resorcinol in a polymeric binder and b. a dye image-receiving layer.

A timing layer, described hereinafter, can also be em- I ployed in the invention between the scavenging layer and the dye image-receiving layer which functions to delay the rate of diffusion of aromatic primary amino color developing agent into the scavenging layer. The timing layer, therefore, ensures the efficient use of the aromatic primary amino color developing agent in the photosensitive element prior to scavenging action by the ballasted resorcinol. A pH-lowering material, de-

' scribed hereinafter, can also be employed in the dye image-receiving element to increase the stability of the transferred image. Although not required, a lightreflective layer comprising a white pigment in a binder, described hereinafter, can also be employed in the dye image-receiving element, if desired. The light-reflective layer can be located underneath the dye imagereceiving layer or can be combined with the timing layer if one is employed.

pods attached to the reception sheet or photosensitive element that can be readily ruptured when development is desired as described, for example, in US. Pat. Nos. 2,559,643, 2,647,049, 2,661,293, 2,698,244, 2,698,798 and 2,774,668.

During the development phase of a color diffusion transfer process according to our invention,-the image dyes formed in the respective blue-, greenand redsensitive silver halide emulsion layers diffuse out of the photosensitive element through the viscous developer composition and into the dye image-receiving layer, e.g., into the dye image-receiving element described above, where the dyes are mordanted to form the transferred image. The timing layer, if one is present, prevents the diffusion of color developer into the scavenger layer for the time necessary to ensure the efficient use of the aromatic primary amino color developing agent in the photosensitive element. Upon separation, it is believed that-the unused aromatic primary amino color developing agent diffuses into the scavenger layer where the developer molecules can react with the ballasted resorcinol under alkaline conditions of development to form a colorless or substantially colorless reaction product. Regardlessof themechanism involved, a marked decrease in the yellowish-brown stain caused by the presence of unused color developing agent in color development diffusion transfer im age-receiving elements is observed upon utilizing a scavenger layer comprising a ballasted resorcinol dispersed in a suitable binder, preferably in the imagereceiving element.

In another embodiment of our invention, the scavenger layer can be located in an integral film unit wherein the dye image-receiving layer is located'integral with the photosensitive element between the support and the lowermost photosensitive silver halide emulsion layer. Such integral receiver-negative photosensitive elements are described in copending U.S. application Ser. No. 115,459 of Barr, Bush and Thomas filed Feb. 16, 1971, now abandoned. In such an embodiment, the support for the photosensitive element is transparent and is coated with the dye image-receiving layer, a substantially opaque, light-reflective layer, e.g., TiO a scavenger layer comprising a ballasted resorcinol dispersed in a suitable binder, and the various layers forming the color-forming units. After exposure of the photosensitive element, a rupturable container containing an alkaline processing composition and an opaque process sheet are brought into superposed position. Pressure-applying members in a camera rupture the container and spread processing composition over the'photosensitive element as the film unit is withdrawn from the camera. The processing composition develops the exposed silver halide layers and dye images are formed as a function of development which diffuse to the image-receiving layer to provide a positive, rightreading image which is viewed through the transparent support on the opaque reflecting layer background. It is believed that positioning of the scavenger layer between the color-forming photosensitive units and the image-receiving layer in the integral receiver-negative film system prevents the diffusion of unused color developer into the image-receiving layer. If desired, an auxiliary scavengerlayer comprising the scavenging materials described herein can be located on the opaque process sheet. For further detailsconcerning this particular integral film unit, its preparation and use, reference is made to the above-mentioned U.S. ap-

plication Ser. No. 115,459 of Barr, Bush and Thomas filed Feb. 16, 1971, which is incorporated herein by reference.

Another embodiment of integral receiver-negative photosensitive systems in which our invention can be employed is described in U.S. Ser. No. 1 15,552 of Cole filed Feb. 16, 1971, now abandoned. In such an embodiment, the support for the color diffusion transfer system is transparent and is coated with the imagereceiving layer, a substantially opaque, light-reflective layer, e.g., ,TiO a scavenger layer comprising a ballasted resorcinol dispersed in a suitable binder, and then the various layers forming the color-forming units and a top transparent sheet. A rupturable container containing an alkaline processing composition and an opacifier is positioned adjacent to the top layer and sheet. The film unit is placed in a camera, exposed through the top transparent sheet and then passed between a pair of pressure-applying members in the camera as it is being removed therefrom. The pressureapplying members rupture the container and spread processing composition and opacifier over the negative portion of the film 'unit to render it lightfinsensitive. The processing composition develops the exposed silver halide layers and dye images are formed as a result of development which diffuse to the image-receiving layer to provide a positive, right-reading image which is viewed through the transparent support on the opaque reflecting layer background. Any unused aromatic primary amino color developing agent which may difiuse in the direction of the image-receiving layer is immobilized by the ballasted resorcinol present in the scavenger layer. Any undesirable products fomied in the scavenger layer are masked from the viewer by the opaque light-reflective layer. For further details concerning this particular integral film unit, its preparation and use, reference is made to the abovementioned Cole U.S. application Ser No. 1 15,552 filed Feb. 16, 1971, which is incorporated herein by reference.

' Very good results are obtained when the ballasted resorcinols are used in the photographic film units where there is associated with each silver halide emulsion layer in the photosensitive element a dye imageproviding material comprising a nondiffusible coupler which produces a diffusable dye on reaction with oxidized aromatic primary amino color developing agent in an alkaline processing composition.

Typical preferred image transfer systems of this type disclosed in U.S. Pat. Nos. 3,227,551, 2,559,643, 3,443,940, 3,443,939 and the like.

lnert timing or spacer layers referred to above can be employed in photographic elements of our invention. Generally, they are employed between the scavenger layer and a dye image-receiving layer which times or controls the scavenging reaction as a function of the rate at which alkali diffuses through the inert spacer layer. Examples of such timing layers include gelatin, polyvinyl alcohol or any of those disclosed in U.S. Pat. No. 3,455,686. The timing layer is also effective in evening'out the various reaction rates over a wide range of temperatures, e.g., premature pH reduction is prevented when imbibition is effected at temperatures above room temperature, for example, at 95 to 100 F. The timing layer is usually about 0.1 to about 0.7 mil in thickness. Especially good results are obtained when the timing layer comprises a hydrolyzable polymer or a mixture of such polymers which are slowly hydrolyzed by the processing composition. Examples of such hydrolyzable polymers include polyvinyl acetate, polyamides, cellulose esters, etc.

The invention can be further illustrated by the following examples.

EXAMPLE l-A:

In the evaluation of the effectiveness of the scavengers of this invention, an image transfer system is constructed as itemized below: 1

ELEMENT A:

1. support;

2. layer containing 1 l mg./ft. of gelatin, mg./ft. of tricresyl phosphate, 87 mg. of Coupler No. 1 of U.S. Pat. No. 2,474,293 and a silver halide emulsion at 87 mg. silver/ftF;

3. layer containing 100 mg./ft. gelatin, 2O mg./ft. Coupler No. l of U.S. Pat. No. 2,474,293 and 10 mg./ft. of tricresyl phosphate;

4. layer containing gelatin at 107 mg./ft. the scavengers of Tables 1 and 2 and NiS at 4.8 mg./ft. Processing Solution:

5.1 g. of 4-amino-3-methoxy-N-ethyl-N-B-hydroxyethyl-aniline, 0.8 g. of piperidinohexosereductone, 5.0 g. of hypo and 11.8 g. of NaOH per liter of water;

ELEMENT B:

1. support;

2. layer containing 454 mg. of gelatin/ft.

3. layer containing 208 mg. of gelatin/ftP, 173 mg./ft. of Coupler No. l of U.S. Pat. No. 2,474,293, 86.5 mg./ft. of tricresyl phosphate and 2.4 mg./ft. of Pd nuclei.

The light-sensitive element A is exposed through the support of element A to a graduateddensity test object and presoaked for 5 seconds at a temperature of 70 F. in the processing solution. The receiver B is presoaked for seconds in the same solution and subsequently brought into contact with the light-sensitive element. Both are passed between rubber rollers and left in contact for 3 minutes. Upon separation and drying of the two components, the receiver is analyzed for silver in the areas corresponding to minimum exposure of the negative. Cyan dye density developed in the receiver and the level of silver found in the receiver are both indications of the efficiency of consumption of oxidized developer by the nucleated layer (layer 3) of the negative. The lower the silver and dye densities in the receiving element, the better the efficiency of the oxidized developer scavenger contained in layer 3 of element A. Maximum efficiency of this layer should promote complete physical development of all complexed silver reacting in the nuclei layer and should consume all oxidized developer generated in the layer.

The following data illustate the effectiveness of a resorcinol derivative according to this invention in scavenging oxidized developer compared to the effectiveness of color couplers, as well as the effectiveness of a variety of other ballasted monohydroxy and dihydr'oxy benzenes.

The following compounds are evaluated by incorporating them in the nuclei layer (layer 4) of the lightsensitive element A and by processing the exposed element in the described manner. Concentrations of the incorporated compounds andthe effectiveness of the compounds as scavengers for oxidized developers are shown in Tables 1 and 2.

HOOH ns a1n Cpd. 2

HO@OH NHC 0 (3151131 Cpd. OH

| ICHa H;C@CH1NC H -n Cpd. 4 OH HsCa- CHz-N E) Cpd. 5 OH l (EH3 HAG-@CHzN-CmI-Iu-H Cpd. s OH I t-HoC4-O-Crlia-t Cpd. OH

| n-H1CrOO I-I -n Cpd. 8...-.."

H3C- CONHCIBHIW Cpd. 11m...

HiCNHCI-Iz Cpd.

ll CNlICIIz- (Coupler N0. 1 in US. Patent 2,474,293)

' tainly indicative of the effectiveness of the ballasted re- The compounds are dissolved in ethyl acetate and then incorporated in the coating composition prior to 1 coating.

TABLE 1 Compound mg./ft mgJit. Ag Appearance of No. in layer 3 in Receiver Dye in Receiver 1 60 1.6 40 2.3 20 2.9 pale green 3-control 50 18.7 dark green 30 9.6 dark green 20 18.8 dark green 4-contro1 60 20.2 dark green 46.4 19.7 dark green 23.2 20.2 dark green 5-contro1 70 16.6 dark green 6-control 60 18.2 dark green 46.4 16.9 dark green 23.2 17.2 7-contro1 60 13.1 dark green 46.4 14.8 dark green 23.2 16.0 dark green 8-control 70 16.9 dark green 9-contro1 4.3 green IO-control 34 7.3 green 17 9.7 l l-control 87 1.8 green EXAMPLE l-B:

The compounds are dissolved in 2,4-di-namylphenol, as disclosed in US. Pat. No. 2,835,579, and then incorporated in the coating composition prior to coating.

TABLE 2 Compound mgJft. mgJft. Ag Appearance of No. in Layer 3 in Receiver Dye in Receiver 1 60 0.4 pale green 40 1.8 pale green 2 60 1.8 40 2.8 4-control 60 17.9 dark green 46 18.8 dark green 6-control 60 1 1.7 green 46.4 1 1.2 green 7-control 60 6.8 green 46.4 1 1.9 dark green 8-c0ntrol 60 4.7 pale green 40 5.7 green 20 9.7 green 1 1 comrol 87 1.4 green 70 2.8 green 50 1.8 pale green 30 2.8 pale green sorcinols.

Although the invention has been described in considerable detail with particular reference to certain preferred embodiments thereof, variations and modifica-v tions can be effected within the spirit and scope of the invention.

We claim:v

1. A photographic element comprising a supporlg at' .least one layer thereon being an image-receiving layer or containing a silver halide emulsion, and at least one layer thereon containing an immobile, ballasted resorcinol compound. I

2. A photographic element according to claim' l wherein said ballasted resorcinol contains hydroxy groups in the 1- and 3-position and a ballast group in the 5-position. i i u 3. A photographic element according to' claim 1 wherein said photographic element comprises from green l about 5 mg. to about mg. per square foot of said ballasted resorcinol and the ballast group of said ballasted resorcinol contains at least eight carbon atoms. 4. A photographic element according to claim 1 wherein said photographic element comprises at least one layer containing a silver halide emulsion.

5. A photographic element according to claim 1 wherein said photographic element comprises at least one layer containing a photographic color-forming coupler.

6. A photographic element according to claim 1 wherein said ballasted resorcinol compound is represented by the formula:

-wherei'n Ball represents a ballast group containing at least eight carbon atoms.

7. A photographic element according to claim 1 wherein said ballasted resorcinol is 5-npentadecylresorcinol.

8. A photographic element according to claim 1 wherein said ballasted resorcinol is S-n-pentadecylenecarbon-amidoresorcinol.

9. A photographic element according to claim 1 which comprises at least one layer containing a silver halide emulsion having associated therewith a photographic color coupler.

110. In a photographic film unit which is adapted to be processed by passing said unit between a pair of juxtaposed pressure-applying members comprising:

a. a photosensitive element comprising a support having thereon at least one photosensitive silver halide emulsion layer, each said silver halide emulsion layer having associated therewith a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color developing agent to produce a diffusible dye;

b. a dye image-receiving layer; and

c. a rupturable container containing an alkaline propH-lowering material.

1 l cessing composition and which is adapted to be positioned during processing of said film unit so that a Compressive force applied to said container by said pressure-applyingmembers will effect a discharge of the containers contents within said film unit;

said film unit containing an aromatic amino color developing agent; the improvement comprising employ- -ing a developing agent scavenger layer comprising a ballasted resorcinol in a polymeric binder.

l l. The film unit of claim wherein said dye imagereceiving layer is located in said photosensitive element between said support and the lowermost photosensitive silver halide emulsion layer.

12. The film unit of claim 10 which contains a timing layer between said scavenger layer and said dye imagereceiving layer.

13. The film unit of claim 10 which also contains a 14. The film unit according to claim 10 wherein said HO- OH (Ball) ing:

15. In a process of forming a transfer image comprisa. imagewise-exposing a photosensitive element comprising a support having thereon at least one photosensitive silver halide emulsion layer, each said silver halide emulsion layer having associated therewith a nondif-fusible coupler capable of reacting with oxidized aromatic primary amino color developing agent to produce a diffusible dye;

b. treating the layer outermost from the support of said photosensitive element with an alkaline processing composition to effect development of each of said exposed silver halide emulsion layers with an aromatic primary amino color developing agent;

c. forming an imagewise distribution of diffusible dye image-providing material as a function of said image-wise exposure of each said silver halide emulsion layer; and

d. at least a portion of each said imagewise distribution of difiusible dye image-providing material diffusing to a dye image-receiving layer; the improvement comprising employing a developing agent scavenger layer comprising a ballasted resorcinol in a polymeric binder.

Claims

2. A photographic element according to claim 1 wherein said ballasted resorcinol contains hydroxy groups in the 1- and 3-position and a ballast group in the 5-position.
3. A photographic element according to claim 1 wherein said photographic element comprises from about 5 mg. to about 100 mg. per square foot of said ballasted resorcinol and the ballast group of said ballasted resorcinol contains at least eight carbon atoms.
4. A photographic element according to claim 1 wherein said photographic element comprises at least one layer containing a silver halide emulsion.
5. A photographic element according to claim 1 wherein said photographic element comprises at least one layer containing a photographic color-forming coupler.
6. A photographic element according to claim 1 wherein said ballasted resorcinol compound is represented by the formula:
7. A photographic element according to claim 1 wherein said ballasted resorcinol is 5-n-pentadecylresorcinol.
8. A photographic element according to claim 1 wherein said ballasted resorcinol is 5-n-pentadecylenecarbon-amidoresorcinol.
9. A photographic element according to claim 1 which comprises at least one layer containing a silver halide emulsion having associated therewith a photographic color coupler.
10. In a photographic film unit which is adapted to be processed by passing said unit between a pair of juxtaposed pressure-applying members comprising: a. a photosensitive element comprising a support having thereon at least one photosensitive silver halide emulsion layer, each said silver halide emulsion layer having associated therewith a nondiffusible coupler capable of reacting with oxidized aromatic primary amino color developing agent to produce a diffusible dye; b. a dye image-receiving layer; and c. a rupturable container containing an alkaline processing composition and which is adapted to be positioned during processing of said film unit so that a compressive force applied to said container by said pressure-applying members will effect a discharge of the container''s contents within said film unit; said film unit containing an aromatic amino color developing agent; the improvement comprising employing a developing agent scavenger layer comprising a ballasted resorcinol in a polymeric binder.
11. The film unit of claim 10 wherein said dye image-receiving layer is located in said photosensitive element between said support and the lowermost photosensitive silver halide emulsion layer.
12. The film unit of claim 10 which contains a timing layer between said scavenger layer and said dye image-receiving layer.
13. The film unit of claim 10 which also contains a pH-lowering material.
14. The film unit according to claim 10 wherein said ballasted resorcinol is a compound of the formula:
15. In a process of forming a transfer image comprising: a. imagewise-exposing a photosensitive element comprising a support having thereon at least one photosensitive silver halide emulsion layer, each said silver halide emulsion layer having associated therewith a nondif-fusible coupler capable of reacting with oxidized aromatic primary amino color developing agent to produce a diffusible dye; b. treating the layer outermost from the support of said photosensitive element with an alkaline processing composition to effect development of each of said exposed silver halide emulsion layers with an aromatic primary amino color developing agent; c. forming an imagewise distribution of diffusible dye image-providing material as a function of said image-wise exposure of each said silver halide emulsion layer; and d. at least a portion of each said imagewise distribution of diffusible dye image-providing material diffusing to a dye image-receiving layer; the improvement comprising employing a developing agent scavenger layer comprising a ballasted resorcinol in a polymeric binder.