Low molecular weight polyethylene glycols as latency extenders in pigmented ink jet inks
AssigneeXerox Corporation
InventorGary R. Fague
Life of this patent
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Abstract
An aqueous ink jet ink composition includes a pigment and an aqueous carrier medium containing sulfolane and a low molecular weight polyethylene glycol. In preferred embodiments, the low molecular weight polyethylene glycol has a number average molecular weight between 350 and 650.
Claims19
An ink jet ink comprising an aqueous carrier medium and a pigment, said aqueous carrier medium comprising sulfolane and a low molecular weight polyethylene glycol, wherein said low molecular weight polyethylene glycol has a number average molecular weight between 200 and 800.
An ink jet ink comprising an aqueous carrier medium and a pigment, said aqueous carrier medium consisting essentially of water, sulfolane and a low molecular weight polyethylene glycol, wherein said low molecular weight polyethylene glycol has a number average molecular weight between 200 and 800.
Dependencies are inferred from the claim text.