Photographic element comprising an ethyleneoxy-substituted amino compound and process adapted to provide high constrast development

A process for forming a high contrast photographic image which comprises developing a photographic element, in the presence of a hydrazine compound, with an aqueous alkaline photographic developing solution;

• said element including at least one layer comprising, in an amount effective to act as an incorporated booster, an amino compound which (1) comprises at least one secondary or tertiary amino group, (2) contains within its structure a group comprised of at least three repeating ethyleneoxy units, and (3) has a partition coefficient of at least one.

A process for forming a high contrast photographic image which comprises developing a photographic element with an aqueous alkaline photographic developing solution;

• said developing solution containing a dihydroxybenzene developing agent, an auxiliary super-additive developing agent and a sulfite preservative;
• said element containing both a hydrazine compound which functions as a nucleating agent and an amino compound which functions as a booster, said amino compound (1) comprising at least one secondary or tertiary amino group, (2) containing within its structure a group comprised of at least three repeating ethyleneoxy units, and (3) having a partition coefficient of at least three.

A process for forming a high contrast photographic image which comprises developing a photographic element with an aqueous alkaline photographic developing solution having a pH in the range of 9 to 10.8, said developing solution containing hydroquinone, a 3-pyrazolidone developing agent and a sulfite preservative;

• said element containing both a hydrazine compound which functions as a nucleating agent and an amino compound which functions as a booster, said amino compound (1) comprising at least one secondary or tertiary amino group, (2) containing within its structure a group comprised of at least three repeating ethyleneoxy units, and (3) having a partition coefficient of at least three.

A silver halide photographic element adapted to form a high contrast image when development is carried out, in the presence of a hydrazine compound, with an aqueous alkaline developing solution, said element including at least one layer comprising, in an amount effective to act as an incorporated booster, an amino compound which (1) comprises at least two secondary or tertiary amino groups, (2) contains within its structure a group comprised of at least three repeating ethyleneoxy units, and (3) has a partition coefficient of at least one.

A silver halide photographic element adapted to form a high contrast image when development is carried out, in the presence of a hydrazine compound, with an aqueous alkaline developing solution, containing a dihydroxybenzene developing agent and an auxiliary super-additive developing agent, said element including at least one layer comprising, in an amount effective to act as an incorporated booster, an amino compound which (1) comprises at least one secondary or tertiary amino group, (2) contains within its structure a group comprised of at least three repeating ethyleneoxy units, and (3) has a partition coefficient of at least one.

A process for forming a high contrast photographic image which comprises developing a photographic element, in the presence of a hydrazine compound, with an aqueous alkaline photographic developing solution;

• said element including at least one layer comprising, in an amount effective to act as an incorporated booster, an amino compound which (1) comprises at least two secondary or tertiary amino groups, (2) contains within its structure a group comprised of at least three repeating ethyleneoxy units, and (3) has a partition coefficient of at least one.

A process for forming a high contrast photographic image which comprises developing a photographic element, in the presence of a hydrazine compound, with an aqueous alkaline photographic developing solution, containing a dihydroxybenzene developing agent and an auxiliary super-additive developing agent;

• said element including at least one layer comprising, in an amount effective to act as an incorporated booster, an amino compound which (1) comprises at least one secondary or tertiary amino group, (2) contains within its structure a group comprised of at least three repeating ethyleneoxy units, and (3) has a partition coefficient of at least one.

In a silver halide photographic element adapted to form a high contrast image when development is carried out with an aqueous alkaline developing solution containing a dihydroxybenzene developing agent and an auxiliary super-additive developing agent, at least one layer of said element containing a hydrazine compound that functions as a nucleating agent and at least one layer of said element comprising an incorporated booster that functions in concert with said hydrazine compound to provide high contrast, the improvement wherein said incorporated booster is an amino compound which (1) comprises at least one secondary or tertiary amino group, (2) contains within its structure a group comprised of at least three repeating ethyleneoxy units, and (3) has a partition coefficient of at least one.