Colorant compositions
AssigneeXerox Corporation
InventorsJeffery H. Banning, Donald R. Titterington, Clifford R. King
Life of this patent
Estimating the term…
Abstract
Disclosed is a colorant composition of the formula wherein R is an alkyl group, an aryl group, an arylalkyl group, or an alkylaryl group, and wherein R can be joined to the phenyl moiety to form a ring, R′ is an aromatic- or heteroaromatic-containing group, each Ra, independently of the others, is a halogen atom, an alkyl group, an alkoxy group, a nitrile group, a nitro group, an amide group, or a sulfonamide group, w is an integer of 0, 1, 2, 3, or 4, n is an integer representing the number of carbon atoms in each repeat alkylene oxide unit, and x is an integer representing the number of repeat alkylene oxide units, wherein said colorant has no more than one —OH, —SH, or primary or secondary amino group per molecule.
Claims68
A phase change ink comprising a phase change ink carrier and a colorant compound comprising one or more moieties of the formula
- wherein R is an alkyl group, an aryl group, an arylalkyl group, or an aokylaryl group, and wherein R can be joined to the phenyl moiety to form a ring, R′ is an aromatic- or heteroaromatic-containing group, each Ra, independently of the others, is a halogen atom, an alkyl group, an olkoxy group, a nitrile group, a nitro group, an amide group, or a sulfonamide group, w is an integer of, 0, 1, 2, 3, or 4, n is an integer representing the number of carbon atoms in each repeat alicylene oxide unit, and x is an integer representing the number of repeat alkylene oxide units, wherein, when the colorant compound contains exactly one of the moieties, the moiety contains no more than one —OH, —SH, or primary or secondary amino group per molecule, and when the colorant compound contains more than one of the moieties, said moieties each contain no —OH groups, —SH groups, or primary or secondary amino groups.
A process which comprises (1) incorporating into an ink jet printing apparatus a phase change ink composition comprising a phase change ink carrier and a colorant compound comprising one or more moieties of the formula
- wherein R is an alkyl group, an aryl group, an arylalkyl group, or an alkylaryl group, and wherein R can be joined to the phenyl moiety to form a ring, R′ is an aromatic- or heteroaromatic-containing group, each Ra, independently of the others, is a halogen atom, an alkyl group, an alkoxy group, a nitrile group, a nitro group, an amide group, or a sulfonamide group, w is an integer of 0, 1, 2, 3, or 4, n is an integer representing the number of carbon atoms in each repeat alkylene oxide unit, and x is an inreger representing the number of repeat alkylene oxide units, wherein, when the colorant compound contains exactly one of the moieties, the moiety contains no more than one —OH, —SH, or primary or secondary amino group per molecule, and when the colorant compound contain, more than one of the moieties, said moieties each contain no —OH grcsups, —SH groups, or primary or secondary amino groups;
- (2) melting tile ink;
- and (3) causing droplets of the melted ink to be ejected in an imagewise pattern onto a substrate.
Dependencies are inferred from the claim text.