摘要:
Briefly described, embodiments of this disclosure include ink formulation and modified pigments. One exemplary modified pigment, among others, includes a pigment A represented by the formula in FIG. 3.
摘要:
Briefly described, embodiments of this disclosure include ink formulation and modified pigments. One exemplary modified pigment, among others, includes a pigment A represented by the formula in FIG. 3.
摘要:
An ink set includes a light magenta ink and a dark magenta ink. The light magenta ink includes an effective amount of a pigment having a red/green lambda cutoff ranging from about 585 nm to about 600 nm, and reflecting at least about 14% of blue light at a wavelength of about 470 nm when measured at a density at which the light magenta ink provides a maximum magenta chroma. The dark magenta ink includes an effective amount of a pigment having a red/green lambda cutoff greater than or equal to about 605 nm.
摘要:
A method and apparatus for classifying non-aqueous liquid suspensions of charged particles employs a large time-varying electric field applied to a suspension situated between capacitive test electrodes. A current waveform is produced that characterizes the suspension with respect to critical properties including concentration, mobility, and plating tendencies of the charged particles suspended therein. The approach is suitable for use with suspensions having relative permitivity constants of about 15 or less.