Patents

Removable Tattoo Ink

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By: TOM BRANNA

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US Patent No. 10,028,897 B2; Ultra Ink has patented a  removable tattoo ink, comprising colored micro-particles that contain an internal core, comprising one or more bio-absorbable chromophores that are water-soluble dyes, water-soluble pigments, or water-soluble drugs; and, an outer shell that consists of at least one layer of polystyrene sulfonate and at least one layer of polyallylamine hydrochloride. The micro-particles also comprise a coating over the outer shell, wherein the coating compri...

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