Use of hydroxy-functional fatty amides in hot melt ink jet inks

A selective phase change ink composition, which comprises a phase change ink colorant composition and a phase change ink carrier composition, said selective phase change ink composition having (a) fluidic and mechanical properties which meet the parameters needed for application to an intermediate transfer surface at an elevated temperature in a liquid state and in a printed pattern, where it is transferred and fixed onto a substrate to form a printed substrate, (b) a compressive yield strength which will allow the ink to flow in a ductile manner when external compressive forces are applied thereto, and sufficient internal cohesive strength to resist failure when the ink is fixed to said substrate, (c) a high degree of ductility on said substrate after said transfer and fixing, and (d) a high degree of lightness and chroma for thin films of uniform thickness thereof, and wherein said phase change ink carrier composition comprises a hydroxy-functional fatty amide compound of mixtures of a non-hydroxy-functional amide analog therewith.

An ink composition suitable for use with an ink jet print head comprising at least a colorant and an ink carrier composition, the ink composition being characterized by having a temperature range in the rubbery region of E' form about -10 to about 100 degrees C., a value of E' of from about 1.0 .times.10.sup.8 to about 1.0.times.10.sup.11 at a desired testing frequency and a glass transition temperature range temperature of from about -40 to about 40 degrees C., where E' is determined by the equation E'=s.sub.o E.sub.o ›Cos.delta.!;

• wherein said ink carrier composition contains a hydroxy-functional fatty amide including at least one hydroxy-functional mono-amide compound with or without a mixture of a non-hydroxy functional mono-amide compound.

A phase change ink composition comprising a hydroxy-functional fatty amide-containing material selected from the group consisting of at least one hydroxy-functional tetra-amide compound and at least one hydroxy-functional mono-amide compound and mixtures thereof, the phase change ink carrier composition further including anon-hydroxy functional fatty amide-containing material selected from the group consisting of at least one non-hydroxy-functional amide and at least one non-hydroxy functional mono-amide compound and mixtures thereof, and a compatible colorant, said phase change ink composition being in a slid phase at ambient temperature and in a liquid phase at elevated operating temperature, said ink composition having a high degree of lightness and chroma, and being rectilinearly light transmissive in a thin film of substantially uniform thickness.

A selective phase change ink composition, which comprises a phase change ink colorant and a phase change ink carrier composition, said selective phase change ink composition having (a) fluidics and mechanical properties which meet the parameters needed for application to an intermediate transfer surface at an elevated temperature in a liquid state and in a desired pattern, where it is transferred and fixed onto a substrate to form a printed substrate, (b) a compressive yield strength which will allow the ink to flow in a ductile manner when external compressive forces are applied thereto, and sufficient internal cohesive strength to resist failure when the ink is fixed to said substrate, (c) a high degree of ductility on said substrate after said transfer and fixing, and (d) a high degree of lightness and chroma for thin films of uniform thickness thereof, wherein said ink carrier composition comprises a hydroxy-functional fatty amide compound or a non-hydroxy-functional amide analog mixed therewith.

A phase change ink composition comprising a phase change ink carrier composition comprising a compatible colorant and at least a tetra-amide compound and/or a mono-amide compound, said ink composition being solid phase at ambient temperature and in a liquid phase at elevated operating temperature, and having a high degree of lightness and chroma and being rectilinearly light transmissive in thin film of substantially uniform thickness, wherein the C*.sub.ab value of a substantially uniform thin film of about 5-20 micron thickness of subtractive primary yellow, magenta and cyan color phase change ink compositions are at least about 50 for said yellow ink composition, at least about 50 for said magenta ink composition, and at least about 30 for said cyan ink composition, respectively and wherein the L* value of a substantially uniform thin film of about 20 micron thickness of a black color phase change ink is not more than about 35, wherein said ink carrier composition comprises at least one hydroxy-functional fatty amide compound or a non-hydroy-functional amide analog mixed therewith.

An ink composition suitable for use with an ink jet print head comprising at least a colorant and an ink carrier composition, the ink composition being characterized by having a temperature range in the rubbery region of E' from about 10 to about 100 degrees C., a value of E' of from about 1.0.times.10.sup.6 to about 1.0.times.10.sup.11 at a desired testing frequency and a glass transition temperature range temperature of from about -40 to about 40 degrees C., where E' is determined by the equation E'=s.sub.o /E.sub.o (Cos.delta.) wherein said ink carrier composition comprises at least one hydroxy-functional fatty amide compound or a non-hydroxy-functional amide analog mixed therewith.

A phase change ink composition comprising a phase change ink carrier composition and compatible colorant, the phase change ink carrier composition including a hydroxy-functional fatty amide-containing material wherein said hydroxy-functional fatty amide-containing material is selected from the group consisting of at least one hydroxy-functional tetra-amide compound and at least one hydroxy-functional mono-amide compound and mixtures thereof, said phase change ink composition being in a solid phase at ambient temperature and in a liquid phase at elevated operating temperature, said ink composition having a high degree of lightness and chroma, and being rectilinearly light transmissive in a thin film of substantially uniform thickness.

A phase change ink composition comprising a phase change ink carrier composition and a compatible colorant, the phase change ink carrier composition including at least one non-hydroxy functional mono-amide compound and a hydroxy-functional fatty amide-containing material that is at least one hydroxy-functional tetra-amide compound, said phase change ink composition being in a solid phase at ambient temperature and in a liquid phase at elevated operating temperature, said ink composition having a high degree of lightness and chroma, and being rectilinearly light transmissive in a thick film of substantially uniform thickness.

A phase change ink composition comprising a phase change ink carrier composition and a compatible colorant, the phase change ink carrier composition including at least one non-hydroxy functional tetra-amide compound and a hydroxy-functional fatty amide-containing material that is at least one hydroxy-functional mono-amide compound, said phase change ink composition being in a solid phase at ambient temperature and in a liquid phase at elevated operating temperature, said ink composition having a high degree of lightness and chroma, and being rectilinearly light transmissive in a thin film of substantially uniform thickness.