Neutralizing-timing layer for color transfer assemblages containing lactone polymer
AssigneeEastman Kodak Company
InventorEdward P. Abel
Life of this patent
Estimating the term…
Abstract
Photographic assemblages, elements, receiving elements and cover sheets are described employing a single neutralizing-timing layer consisting essentially of a carboxy-ester-lactone polymer having the following recurring units: ##STR1## wherein R is alkyl having from 1 to about 12 carbon atoms or aralkyl having from 7 to about 12 carbon atoms; R.sup.1 and R.sup.2 are each independently hydrogen or methyl; x is about 1 to about 15 mole %; and y is about 85 to about 99 mole %.
Claims29
In a photographic assemblage comprising:
- (a) a photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material;
- (b) a dye image-receiving layer;
- (c) neutralizing means for neutralizing an alkaline processing composition;
- and
- (d) timing means located between said neutralizing means and said dye image-receiving layer;
- the improvement wherein said neutralizing means and said timing means are provided by a single layer which functions as a combined neutralizing-timing layer and consists essentially of a carboxy-ester-lactone polymer having recurring units of the formula ##STR9## wherein R is alkyl having from 1 to about 12 carbon atoms or aralkyl having from 7 to about 12 carbon atoms;
- R.sup.1 and R.sup.2 are each independently hydrogen or methyl;
- x is about 1 to about 15 mole %;
- and
- y is about 85 to about 99 mole %.
In a photographic assemblage comprising:
- (a) a photosensitive element comprising a support having thereon at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material;
- (b) a dye image-receiving layer;
- (c) an alkaline processing composition and means containing same for discharge within said assemblage;
- (d) neutralizing means for neutralizing said alkaline processing composition;
- and
- (e) timing means located between said neutralizing means and said dye image-receiving layer;
- the improvement wherein said neutralizing means and said timing means are provided by a single layer which functions as a combined neutralizing-timing layer and consists essentially of a carboxy-ester-lactone polymer having recurring units of the formula ##STR10## wherein R is alkyl having from 1 to about 12 carbon atoms or aralkyl having from 7 to about 12 carbon atoms;
- R.sup.1 and R.sup.2 are each independently hydrogen or methyl;
- x is about 1 to about 15 mole %;
- and
- y is about 85 to about 99 mole %.
An integral photographic assemblage comprising:
- (a) a photosensitive element comprising a transparent support having thereon the following layers in sequence:
- a dye image-receiving layer;
- an alkaline solution-permeable, light-reflective layer;
- an alkaline solution-permeable, opaque layer;
- a red-sensitive, negative-working silver halide emulsion layer having a positive-working redox cyan dye-releaser associated therewith;
- a green-sensitive, negative-working silver halide emulsion layer having a positive-working redox magenta dye-releaser associated therewith;
- and a blue-sensitive, negative-working silver halide emulsion layer having a positive-working redox yellow dye-releaser associated therewith;
- (b) a transparent sheet superposed over said blue-sensitive silver halide emulsion layer and comprising a transparent support coated with a neutralizing-timing layer consisting essentially of a carboxy-ester-lactone polymer having recurring units of the formula ##STR12## wherein R is alkyl having from 1 to about 12 carbon atoms or aralkyl having from 7 to about 12 carbon atoms;
- R.sup.1 and R.sup.2 are each independently hydrogen or methyl;
- x is about 1 to about 15 mole %;
- and
- y is about 85 to about 99 mole %;
- and
- (c) a rupturable container containing an alkaline processing composition and an opacifying agent, said container being so positioned during processing of said assemblage that a compressive force applied to said container will effect a discharge of the container's contents between said neutralizing-timing layer and said blue-sensitive silver halide emulsion layer;
- said assemblage containing a silver halide developing agent.
A dye image-receiving element adapted to be permeated by an alkaline processing composition comprising a support having thereon, in sequence, a neutralizing-timing layer and a dye image-receiving layer, and wherein said neutralizing-timing layer consists essentially of a carboxy-ester-lactone polymer having recurring units of the formula ##STR13## wherein R is alkyl having from 1 to about 12 carbon atoms or aralkyl having from 7 to about 12 carbon atoms;
- R.sup.1 and R.sup.2 are each independently hydrogen or methyl;
- x is about 1 to about 15 mole %;
- and
- y is about 85 to about 99 mole %.
A photographic element adapted to be permeated by an alkaline processing composition comprising a support having thereon, in sequence, a neutralizing-timing layer and at least one photosensitive silver halide emulsion layer having associated therewith a dye image-providing material, and wherein said neutralizing-timing layer consists essentially of a carboxy-ester-lactone polymer having recurring units of the formula ##STR14## wherein R is alkyl having from 1 to about 12 carbon atoms or aralkyl wherein having from 7 to about 12 carbon atoms;
- R.sup.1 and R.sup.2 are each independently hydrogen or methyl;
- x is about 1 to about 15 mole %;
- and
- y is about 85 to about 99 mole %.
Dependencies are inferred from the claim text.