Abstract: Low hue photobleaching compositions comprising organotin (IV), organogermanium (IV), organopaltinum (IV), organopalladium (IV), organolead (IV) or organophosphorous (III) phthalocyanine and napthalocyanines having Q-band absorption maxima at wavelengths greater than 660 nm and increased triplet state yields whereby production of singlet oxygen is increased. Use of Sn4+, Ge 4+, Pt4+, Pd4+, Pb4+, P3+ pthalocyanine and naphthalocyanines compounds in photobleaching compositions allows for formulation of low hue laundry compositions, bleach compositions, and hard surface cleaners.

Abstract: The present invention relates to hybrid metallocyanine ring photosensitizers and mixtures thereof useful in laundry detergent compositions as low hue photobleaches. The hybrid rings are formed from suitable aromatic rings, inter alia, benzene, 1,2-naphthalene, and 2,3-naphthalene. The present invention also relates to conpositions for cleaning and disinfecting hard surfaces. The present invention further relates to methods for photobleaching fabrics and to methods for disinfecting hard surfaces.