Abstract: A black non-aqueous inkjet ink includes a colorant package including a black pigment; a polymeric dispersant; a phenol-formaldehyde resin; a C2 to C6 ester solvent; and a balance of a C1 to C5 alcohol solvent. The black pigment and the polymeric dispersant are present in a weight ratio ranging from about 1:0.4 to about 1:0.6. The phenol-formaldehyde resin is a C3 to C8 alkyl-modified phenol-formaldehyde resin.

Abstract: The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 1 wt % to 9 wt % pigment dispersed in the aqueous liquid vehicle by an ionic polymeric dispersant associated with pigment, from 0.5 wt % to 5 wt % non-ionic polymeric binder having a weight average molecular weight from 400 Mw to 20,000 Mw, and from 0.1 wt % to 1.5 wt % monovalent salt.

Abstract: An example of an ink supply includes an ink chamber containing a liquid ink, a salt chamber containing a salt solution, a separator positioned between the liquid ink and the salt solution, and a release mechanism. The separator completely separates the liquid ink from the salt solution prior to the release mechanism being triggered. The release mechanism has a triggered position and a retracted position. The triggered position causes the separator to at least partially open, and enables the liquid ink and the salt solution to be combined to form a mixture.

Abstract: The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 1 wt % to 9 wt % pigment dispersed in the aqueous liquid vehicle by a polymer dispersant associated with pigment, from 0.5 wt % to 5 wt % polymeric binder particles having an average particle size from 25 nm to 500 nm and a D10 particle size of 20 nm or more, and from 0.1 wt % to 1.5 wt % monovalent salt.

Abstract: An example of an ink supply includes an ink chamber containing a liquid ink, a salt chamber containing a salt solution, a separator positioned between the liquid ink and the salt solution, and a release mechanism. The separator completely separates the liquid ink from the salt solution prior to the release mechanism being triggered. The release mechanism has a triggered position and a retracted position. The triggered position causes the separator to at least partially open, and enables the liquid ink and the salt solution to be combined to form a mixture.

Abstract: The present disclosure is drawn to an ink composition including an aqueous liquid vehicle, from 2 wt % to 7 wt % self-dispersed pigment dispersed in the aqueous liquid vehicle, and from 0.5 wt % to 5 wt % acidic polymeric binder particles having an acid number from 30 to 200 and a particle size from 1 nm to 100 nm dispersed in the aqueous liquid vehicle. The ink composition can also include from 0.1 wt % to 0.75 wt % monovalent salt solubilized in the aqueous liquid vehicle. The self-dispersed pigment to monovalent salt weight ratio in the ink composition can be from 3:1 to 50:1, for example.

Abstract: The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 1 wt % to 9 wt % pigment dispersed in the aqueous liquid vehicle by an ionic polymeric dispersant associated with pigment, from 0.5 wt % to 5 wt % non-ionic polymeric binder having a weight average molecular weight from 400 Mw to 20,000 Mw, and from 0.1 wt % to 1.5 wt % monovalent salt.

Abstract: The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 1 wt % to 9 wt % pigment dispersed in the aqueous liquid vehicle by a polymer dispersant associated with pigment, from 0.5 wt % to 5 wt % polymeric binder particles having an average particle size from 25 nm to 500 nm and a D10 particle size of 20 nm or more, and from 0.1 wt % to 1.5 wt % monovalent salt.

Abstract: The present disclosure is drawn to an ink composition including an aqueous liquid vehicle, from 2 wt % to 7 wt % self-dispersed pigment dispersed in the aqueous liquid vehicle, and from 0.5 wt % to 5 wt % acidic polymeric binder particles having an acid number from 30 to 200 and a particle size from 1 nm to 100 nm dispersed in the aqueous liquid vehicle. The ink composition can also include from 0.1 wt % to 0.75 wt % monovalent salt solubilized in the aqueous liquid vehicle. The self-dispersed pigment to monovalent salt weight ratio in the ink composition can be from 3:1 to 50:1, for example.

Abstract: The present disclosure is drawn to ink compositions including from 30 wt % to 75 wt % water, an organic co-solvent system, from 0.1 wt % to 3 w % nonionic surfactant, and from 3 wt % to 9 wt % pigment that is dispersed by separate polymer dispersant. The organic co-solvent system can include, based on the ink composition content, from 15 wt % to 50 wt % of a first solvent portion of high dielectric constant co-solvent with a dielectric constant greater than 30 ?, and from 2 wt % to 15 wt % of a second solvent portion of low dielectric constant co-solvent with a dielectric constant from 1 ? to 30 ?.

Abstract: The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 3 wt % to 9 wt % pigment dispersed in the aqueous liquid vehicle by a polymer dispersant associated with pigment, and from 0.25 wt % to 1.2 wt % monovalent salt. The pigment to monovalent salt weight ratio in the ink composition can be from 5:1 to 25:1.

Abstract: The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 2 wt % to 7 wt % self-dispersed pigment dispersed in the aqueous liquid vehicle, and from 0.1 wt % to 1 wt % monovalent salt. The self-dispersed pigment to monovalent salt weight ratio in the ink composition can be from 3:1 to 35:1.