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US09187665B2 Inkjet ink with self-dispersed pigment 有权
具有自分散颜料的喷墨油墨

Inkjet ink with self-dispersed pigment
Abstract:
An ink composition for inkjet printing is disclosed herein. The ink composition includes a self-dispersed carbon black pigment with alkali metal counter ions, polyurethane, and an aqueous carrier. The aqueous carrier includes water, at least one water-soluble organic solvent, and at least one surfactant. In one embodiment, the aqueous carrier further includes an additive having a polar head group and a C8-C18 hydrocarbon tail.
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