摘要:
A method of ejecting ink from a thermal inkjet printhead. The method includes the steps of: (i) supplying an ink to at least one nozzle chamber of the printhead; and (ii) actuating a heater element in the nozzle chamber and heating the ink to a temperature sufficient to form a bubble therein, thereby causing the ink to be ejected from a nozzle opening associated with the nozzle chamber. The ink is a solvent-based ink composition including: (a) 20-80 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) 10-70 wt. % of a C1-6 alcohol; and (c) 0.01-25 wt. % of a colorant.
摘要:
A method of hydrophilizing surfaces of an ink pathway configured for supplying ink to nozzles in an inkjet printhead. The method includes the steps of: treating the surfaces of the ink pathway with a solution comprising an alkoxylated polyethyleneimine; and drying the surfaces.
摘要:
A method of ejecting ink from a thermal inkjet printhead. The method comprises the steps of: (i) supplying an ink to at least one nozzle chamber of the printhead; and (ii) actuating a heater element in the nozzle chamber and heating the ink to a temperature sufficient to form a bubble therein, thereby causing the ink to be ejected from a nozzle opening associated with the nozzle chamber. The ink is a solvent-based ink composition comprising:(a) 20-80 wt. % of a compound of formula (C); wherein:R7 is a C2-12 alkyl group interrupted with 0, 1, 2 or 3 oxygen atoms;(b) 10-70 wt. % of a C1-6 alcohol; and(c) 0.01-25 wt. % of a colorant.
摘要:
An inkjet ink comprising an IR-absorbing dye. The dye is a metal-cyanine complex of formula (I): wherein Q1, Q2, Q3 and Q4 are the same or different and are independently selected from a C3-20 arylene group or a C3-20 heteroarylene group; M is selected from Ti(A1)(A2), Zr(A1)(A2), V(A1)(A2), Si(A1)(A2), Ge(A1)(A2), Ga(A1), Al(A1), Mn(A1), Fe(A1), Sn(A1)(A2), or Pb(A1)(A2); and A1 and A2 may be the same or different and are axial ligands of formula (IIIa) wherein: C1 represents a core unit having two or more branching positions; each P1 is independently selected from H, a hydrophilic moiety or a branched moiety; g1 is an integer from 2 to 8; q1 is 0 or an integer from 1 to 6; and each p1 is independently selected from 0 or an integer from 1 to 6.
摘要:
The present invention provides an IR-absorbing metal-cyanine dye, said metal having at least one axial ligand bound thereto, wherein said axial ligand comprises a moiety suitable for reducing intermolecular interactions between adjacent dye molecules, thereby minimizing absorption of visible light.Dyes of this type are especially suitable for use in netpage and Hyperlabel systems.
摘要:
The present invention provides an IR-absorbing dye of formula (I) or (II): wherein Q1, Q2, Q3 and Q4 are the same or different and are independently selected from a C3-20 heteroarylene group comprising at least one N atom; M is selected from Si(A1)(A2), Ge(A1)(A2), Ga(A1), Mg, Al(A1), TiO, Ti(A1)(A2), ZrO, Zr(A1)(A2), VO, V(A1)(A2), Mn, Mn(A1), Fe, Fe(A1), Co, Ni, Cu, Zn, Sn, Sn(A1)(A2), Pb, Pb(A1)(A2), Pd and Pt; A1 and A2 are axial ligands, which may be the same or different, and are selected from —OH, halogen, —OR3, a hydrophilic ligand and/or a ligand suitable for reducing cofacial interactions; R3 is a selected from C1-12 alkyl, C5-12 aryl, C5-12 arylalkyl or Si(Rx)(Ry)(Rz); and Rx, Ry and Rz may be the same or different and are selected from C1-12 alkyl, C5-12 aryl, C5-12 arylalkyl, C1-12 alkoxy, C5-12 aryloxy or C5-12 arylalkoxy. Dyes of this type are especially suitable for use in netpage and Hyperlabel systems.
摘要:
A method of fabricating an apertured polymeric film. The method comprising the steps of: (a) masking a polymeric film with a first mask having first laser transmission zones defined therein; (b) laser-ablating first apertures through the polymeric film using the first mask; (c) masking the film with a second mask having second laser transmission zones defined therein, each second zone being aligned with a corresponding first aperture, and each second zone having greater perimeter dimensions than the corresponding first aperture; and (d) reaming the first apertures by laser-ablating the polymeric film using the second mask, the reamed first apertures defining second apertures in the film.
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:
A substrate having an inkjet ink disposed thereon. The ink comprises an IR-absorbing naphthalocyanine dye of formula (I): wherein: M is a metal group; R1 and R2 are selected from the group consisting of: H and C1-12 alkoxy; W is selected from the group consisting of: a sulfonic acid group or a salt thereof; and a sulfonamide group; n1 is 0, 1, 2 or 3; n2 is 0, 1, 2 or 3; n3 is 0, 1, 2 or 3; and n4 is 0, 1, 2 or 3; provided that at least one of n1, n2, n3 or n4 is greater than 0. n4 is 0, 1, 2 or 3; provided that at least one of n1, n2, n3 or n4 is greater than 0.
摘要:
A substrate having an IR-absorbing dye disposed thereon. The IR-absorbing dye is a metal phthalocyanine dye having branched axial ligands. The branched axial ligands minimize interaction between π systems of adjacent dye molecules, and assist in reducing absorption of visible wavelengths.