摘要:
A solvent-based ink composition for a thermal inkjet printhead comprises a surface-modified pigment. The ink composition comprises: (a) 10-80 wt. % of a compound of formula (A); wherein: R1 is C1-6 alkyl; and each of R2, R3 and R4 is independently selected from H, C1-6 alkyl, halogen, OH, and C1-6 alkoxy; (b) 10-80 wt. % of a C1-6 alcohol; and (c) 0.01-25 wt. % of the surface-modified pigment.
摘要:
Non-aqueous, radiation-curable inks comprising pigment, dispersant and a liquid carrier, wherein the pigment has an acid value greater than 8 mg of NaOH per gram of pigment. The inks are particularly suitable for use in ink jet printers.
摘要:
A solvent-based ink composition for a thermal inkjet printhead. The composition includes: (a) 10-80 wt. % of a compound of formula (B): wherein: R5 is a C1-6 alkyl group and R6 is a C1-6 alkyl group; or R5 and R6 are together joined to form a C3-12 cycloalkylene group; (b) 10-80 wt. % of a C1-6 alcohol; and (c) 0.01-25 wt. % of a surface-modified pigment.
摘要:
A method of minimizing kogation of a heater element in a thermal inkjet printhead. The method comprises the steps of: (i) supplying an inkjet ink to a nozzle chamber of the printhead; and (ii) repeatedly actuating a heater element in the nozzle chamber so as to heat a portion of the ink to a temperature sufficient to form a bubble therein, thereby causing droplets of ink to be ejected from a nozzle opening associated with the nozzle chamber. The ink comprises an acrylic polymer having a glass transition temperature (Tg) of less than about 100° C., which minimizes kogation of the heater element.
摘要:
A method of minimizing kogation of a heater element in a thermal inkjet printhead. The method includes the steps of: (i) supplying an inkjet ink to a nozzle chamber of the printhead; and (ii) repeatedly actuating a heater element in the nozzle chamber so as to heat a portion of the ink to a temperature sufficient to form a bubble therein, thereby causing droplets of ink to be ejected from a nozzle opening associated with the nozzle chamber. The ink includes a styrene-acrylic copolymer having a glass transition temperature (Tg) in the range of 5 to 30° C. and acid value in the range of 100 180 mgKOH/g, said styrene-acrylic copolymer minimizes kogation of the heater element.
摘要:
A solvent-based ink composition for a thermal inkjet printhead comprises a surface-modified pigment. The ink composition comprises: (a) 10-80 wt. % of a compound of formula (A); wherein: R1 is C1-6 alkyl; and each of R2, R3 and R4 is independently selected from H, C1-6 alkyl, halogen, OH, and C1-6 alkoxy; (b) 10-80 wt. % of a C1-6 alcohol; and (c) 0.01-25 wt. % of the surface-modified pigment.