摘要:
Substituted hydroxylamines useful in photographic processing solution can be prepared by reacting a hydroxylamine with a vinylic compound having an electron withdrawing substituent in a suitable solvent, in the absence of a neutralizing base. The resulting products can be used without isolation from the reaction solution.
摘要:
A composition for developing a silver halide color photographic material comprising a color developing agent and a hydroxylamine compound represented by Formula I or II: ##STR1## wherein Stab is a stabilizing group such that when the hydroxylamine compound is added to a test developer solution of the following formula the pH of the test developer solution decreases less than 0.12 at an aeration time of 90 hours: TABLE 1 ______________________________________ Developer Formulation Components Quantity/L ______________________________________ Lithium salt of sulfonated 0.25 mL Polystyrene (30% wt/wt Liq) Triethanolamine 11.0 mL Stilbene Stain-Reducing Agent 2.3 g Hydroxylamine compound 0.05 moles Lithium Sulfate 2.7 g 1-Hydroxyethylidene-1-diphosphonic 0.8 mL acid (60% wt/wt Liq) Potassium Chloride 1.8 g Potassium Bromide 0.2 g 4-amino-3-methyl-N-ethyl-N-(.beta.- 4.85 g methanesulfonamidoethyl)aniline (color developer) Potassium Carbonate 25.0 g Water to 1 L solution pH adjusted to 10.12 with KOH ______________________________________ and wherein R is a substituted or unsubstituted alkyl, aryl or heterocyclic group bonded to N by a carbon atom.