Patent ID: 9404905
Filing Date: 2016-08-02
CPC Classification: B05D,C09D,G01N

Claim Text:
1. A color-appearing ink composition comprising: a surfactant blend comprising a nonionic surfactant having a hydrophilic-lipophilic balance value greater than 10, and a surfactant selected from the group consisting of Polyethylene Glycol Ester of Lauric Acid, Ethoxylated Alkyl Phenol, Polyoxyethylene Sorbitan Monooleate, Disodium Lauryl Phenyl Ether Disulfonate, and any combination thereof; a water-insoluble leuco dye; a developer; a desensitizer comprising betaine or a betaine derivative; a binder; a stabilizer; and water wherein the composition is substantially free of organic solvent; and wherein the composition develops color from a substantially non-colored state when contacted by an aqueous liquid.