Colorless compounds, solid inks, and printing methods

A solid ink comprising:

• a colorant;
• and
• a colorless compound comprising
• wherein the components R1, R2, R3, R4, R5, R6, R7 and R8 are selected from the group consisting of hydrogen, halogens, hydroxy groups, alkoxy groups, trifluoromethyl groups, and alkyl groups, can be the same as one another or different than one another, and two or more of the components R1, R2, R3, R4, R5, R6, R7 and R8 can be within a common ring;
• wherein the representation of “(H,Q)” indicates that either a group Q or a hydrogen can be in the shown positions;
• wherein the group Q is either an alkyl group or an aryl group;
• and wherein Q can vary amongst different alkyl and aryl groups within the colorless compound;
• and wherein k and j are integers from 1 to about 50, and can be the same or different from one another.

A solid ink comprising:

• a colorant;
• and
• a colorless compound comprising
• wherein the components R1, R2, R3, R4, R5, R6, R7 and R8 are selected from the hydrogen, halogens, hydroxy groups, alkoxy groups, trifluoromethyl groups, and alkyl groups, can be the same as one another or different than one another, and two or more of the components R1, R2, R3, R4, R5, R6, R7 and R8 can be within a common ring;
• and wherein k and j are integers from 1 to about 50, and can be the same as or different from one another.

A solid ink comprising:

• a colorant;
• and
• a colorless compound comprising
• wherein the components R1, R2, R3, R4, R5, R6, R7 and R8 are selected from the hydrogen, halogens, hydroxy groups, alkoxy groups, trifluoromethyl groups, and alkyl groups, can be the same as one another or different than one another, and two or more of the components R10, R11, R12, R13, R14, R15, R16, R17 and can be within a common ring;
• wherein the representation of “(H, Q)” indicates that either a group Q or a hydrogen can be in the shown positions;
• wherein the group Q is either an alkyl group or an aryl group;
• and wherein Q can vary amongst different alkyl and aryl groups within the colorless compound;
• and wherein j, k, l and m are integers from 1 to about 50, and can be the same as or different from one another.

A solid ink comprising:

• a colorant;
• and
• a colorless compound comprising a central core and at least two arms tending from the core, the at least two arms comprising the formula
• wherein Z is a segment of one or more atoms;
• wherein j is an integer from 1 to about 50 and can vary amongst the at least two arms;
• wherein the representation of “(H, Q)” at shown positions indicates that either a group Q or a hydrogen can be in the shown positions;
• wherein the group Q is either an alkyl group or an aryl group;
• wherein Q can vary amongst different alkyl and aryl groups within individual arms of the at least two arms;
• and wherein n is an integer greater than 1 and can vary amongst the at least two arms.

A printing method comprising:

• melting a phase change ink comprising a colorless compound comprising
• wherein X is a single atom corresponding to N or O;
• wherein Z3 and Z4 are substituents comprising one or more atoms;
• wherein Z2, Z3 and Z4 can be the same as one another or different from one another;
• wherein Z2, Z3 and Z4 can be within a common ring;
• wherein k and j are both integers from 1 to about 50, and can be the same as or different from one another;
• wherein the representation of “(H, Q)” indicates that either a group Q or a hydrogen can be in the shown positions;
• wherein the group Q is either an alkyl group or an aryl group;
• and wherein Q can vary amongst different alkyl and aryl groups within the compound;
• applying the melted ink to a substrate;
• and
• cooling the melted ink on the substrate.

A printing method comprising:

• melting a phase change ink comprising a colorless compound comprising
• wherein the components R1, R2, R3, R4, R5, R6, R7 and R8 are selected from the group consisting of hydrogen, halogens, hydroxy groups, alkoxy groups, trifluoromethyl groups, and alkyl groups, can be the same as one another or different than one another, and two or more of the components R1, R2, R3, R4, R5, R6, R7 and R8 can be within a common ring;
• wherein the representation of “(H, Q)” indicates that either a group Q or a hydrogen can be in the shown positions;
• wherein the group Q is either an alkyl group or an aryl group;
• and wherein Q can vary amongst different alkyl and aryl groups within the colorless compound;
• and wherein k and j are integers from 1 to about 50, and can be the same as or different from one another;
• applying the melted ink to a substrate;
• and
• cooling the melted ink on the substrate.

A printing method comprising:

• melting a phase change ink comprising a colorless compound comprising
• wherein the components R1, R2, R3, R4, R5, R6, R7 and R8 are selected from the group consisting of hydrogen, halogens, hydroxy groups, alkoxy groups, trifluoromethyl groups, and alkyl groups, can be the same as one another or different than one another, and two or more of the components R1, R2, R3, R4, R5, R6, R7 and RB can be within a common ring;
• and wherein k and j are integers from 1 to about 50, and can be the same as or different from one another;
• applying the melted ink to a substrate;
• and
• cooling the melted ink on the substrate.

A printing method comprising:

• melting a phase change ink comprising a colorless compound comprising
• wherein the components R10, R11, R12, R13, R14, R15, R16 and R17 are selected from the group consisting of hydrogens, halogens, hydroxy groups, alkoxy groups, trifluoromethyl groups, and alkyl groups, can be the same as one another or different than one another, and two or more of the components R10, R11, R12, R13, R14, R15, R6 and R17 can be within a common ring;
• wherein the representation of “(H, Q)” indicates that either a group Q or a hydrogen can be in the shown positions;
• wherein the group Q is either an alkyl group or an aryl group;
• and wherein Q can vary amongst different alkyl and aryl groups within the colorless compound;
• and wherein j, k, l and m are integers from 1 to about 50, and can be the same as or different from one another;
• applying the melted ink to a substrate;
• and
• cooling the melted ink on the substrate.

A printing method, comprising:

• melting a phase change ink comprising a colorless compound comprising a central core and at least two arms extending from the core, the at least two arms comprising the formula
• wherein Z is a segment of one or more atoms;
• wherein j is an integer from 1 to about 50 and can vary amongst the at least two arms;
• wherein the representation of “(H, Q)” indicates that either a group Q or a hydrogen can be in the shown positions;
• wherein the group Q is either an alkyl group or an aryl group;
• wherein Q can vary amongst different alkyl and aryl groups within individual arms of the at least two arms;
• and wherein n is an integer greater than 1 and can vary amongst the at least two arms;
• applying the melted ink to a substrate;
• and
• cooling the melted ink on the substrate.