[Allergic eczema due to textile pigment-supports]

A worker employed in a textile printing-shop showing a rebellious eczema on hands and forearms, was submitted to three series of patch-tests which disclosed a polysensitization to chromium, to formaldehyde, to the urea-formaldehyde resin and to some pigments (Helizarine BASF, Fluolac FMC). The chemical analysis of some of these pigments shows an interesting relation between allergenicity for a certain pigment and the presence of formaldehyde. Thus, it is an allergy to the pigment-support and not to the pigment itself.