The Photochemistry of Sulphuric acid Esters of Leuco Vat Dyes and Their Use in Photographic Printing and the Cross-linking Poly(vinyl alcohol)

Paper describes an effective analytical technique for irradiated vat ester solutions and the use of vat esters in photographic printing and cross-linking of poly(vinyl alcohol) is reviewed to throw more light on the photochemistry of vat esters