Patents

Henkel’s Foam Hair Dye

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By: TOM BRANNA

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US Patent No. 10,300,002 B2 (Konstantin Goutsis, Gabriele Weser); Henkel AG & Co., Duesseldorf, has patented a composition for dyeing keratinous fibers. The composition contains water; and organic solvent comprised of propylene carbonate and benzyl alcohol). The cosmetic composition has a pH value in the range from about 1.0 to about 5.5; at least one acid directly absorbed dye, and at least one nonionic ethoxylated surfactant selected from the group of ethylene oxide adducts to saturated o...

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