摘要:
A solid or phase change inkjet ink incorporating a polar acidic wax is described. The use of polar waxes as an ink additive improves the polarity of the ink and adhesion of the ink to paper. A method for applying the solid or phase change ink incorporating an acidic polar wax additive to form an image is also described.
摘要:
A pigmented phase change ink composition comprising an ink vehicle, a dispersant, and pigment particles wherein the dispersant is a chemical compound of formula: wherein R1 is an alkyl group, aryl group, alkylaryl group or arylalkyl group with at least 23 carbon atoms, R2 is an alkylene group, arylene group, alkylarylene group or arylalkylene group with at least 2 carbons and X is a quaternary ammonium salt. The ink can be resistant to substantial aggregation and settling of the pigment particles in the melt and even when exposed to freeze thaw cycles.
摘要:
A solid phase change ink composition that includes at least one colorant and an ink vehicle. The ink vehicle further includes at least one polyhydroxyalkanoate compound of the below formula wherein R is independently selected from the group consisting of a hydrogen atom, a hydrocarbon group, a heteroatom, and combinations thereof, and wherein n represents the number of repeating units of from 1 to about 35,000, and wherein x represents an integer from 1 to about 5.
摘要:
A phase change ink composition includes an ink vehicle and at least one pigment, wherein the ink composition is substantially solid at room temperature and includes at least one dispersant for the at least pigment and at least one synergist.
摘要:
A phase change ink composition including (a) an ink vehicle; (b) a dispersing agent; (c) a colorant; and (d) organic fiber shaped nanowhiskers, inorganic fiber shaped nanowhiskers, or a combination of organic and inorganic fiber shaped nanowhiskers, wherein the organic fiber shaped nanowhiskers, the inorganic fiber shaped nanowhiskers, or a combination thereof, are encapsulated or functionalized to enhance compatibility with the ink vehicle; and wherein the colorant and the organic fiber shaped nanowhiskers, the inorganic fiber shaped nanowhiskers, or combination of organic and inorganic fiber shaped nanowhiskers are substantially resistant to aggregation and settling in the ink vehicle.
摘要:
A nanoscale pigment particle composition includes a quinacridone pigment having at least one functional moiety, and a sterically bulky stabilizer compound having at least one functional group, wherein the functional moiety associates non-covalently with the functional group; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, so as to afford nanoscale-sized particles of the pigment. The composition is made by providing a first solution containing a quinacridone pigment precursor or a crude quinacridone pigment, having at least one functional moiety; providing a second solution containing stabilizer molecules of a sterically bulky stabilizer compound having one or more functional groups that associate non-covalently with the functional moiety of the pigment or precursor; combining the first and second solutions to form a third mixture of precipitated quinacridone pigment particles having nanoscale particle sizes, and wherein the functional moiety of the pigment associates non-covalently with the functional group of the stabilizer compound.
摘要:
A nanoscale pigment particle composition includes a quinacridone pigment including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, wherein the functional moiety associates non-covalently with the functional group; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized particles.