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This article focuses on a case study of a 51-year-old man who developed a scaly eczema on the dorsum of his fingers. It was found out that he worked as a technician for a motion colour film processing laboratory. It was observed that while working in the laboratory patient has to deal with various process solutions to establish the concentration of ingredients. On patch testing with photographic chemicals it was observed that a vesicular reaction was produced to a dilution. Since the patient has been using disposable polyvinyl chloride gloves when handling solutions of persulphate bleach accelerator (PBA1) and taking care with the cleanliness of his bench. the rash has cleared. It appears that he had allergic contact due to PBA1.

The article focuses on photographic allergens. 277 material safety data sheets were obtained from Eastman Kodak Company for all chemicals used in their black and white, color, X-ray and microfilm developing systems. 16 potential allergens were identified in these systems. Of these only the first 8 are in the current Chemotechnique photographic series. 8 other chemicals in the current series were not identified in these systems. An additional chemical, sodium dichromate, was recently replaced by potassium permaganate in Kodak developer system cleaner.

This article focuses on a case study of a 38 year old man, who had developed contact allergy to the photographic chemical PBA-1. He worked as film developer for 16 years without any skin problems. While as a chemical mixer, he developed an eczema and flared up on the back of the hand and it quickly spread to his arms. Patch testing was performed with the ICDRG standard series and some photographic chemicals from his work. Finn-Chambers® were used for the standard test and Al-test® for the photographic chemicals with Scanpor® surgical tape.