摘要:
A solvent-based ink composition for a thermal inkjet printhead. The ink composition comprises: (a) 20-80 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) 10-70 wt. % of a C1-6 alcohol; and (c) 0.01-25 wt. % of a colorant.
摘要:
A solvent-based ink composition for a thermal inkjet printhead. The ink composition comprises: (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 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 (D); wherein: each of R8 and R9 is independently selected from a C1-12 alkyl group interrupted with 0, 1, 2 or 3 oxygen atoms; or R8 and R9 are together joined to form a C3-12 cycloalkylene group; (b) 10-70 wt. % of a C1-6 alcohol; and (c) 0.01-25 wt. % of a colorant.
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 method of preparing a macrocyclic metal cyanine. The method comprises the step of providing a corresponding macrocyclic metal-free cyanine compound dissolved in a solvent and adding a metal reagent thereto. The metal reagent is highly soluble in the solvent and typically comprises one or more organic ligands.
摘要:
A method of printing an IR-absorbing dye onto a substrate whilst minimizing visible coloration of the substrate. The method comprises: (i) preselecting the dye from a metal-cyanine of formula (I): 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 Si(A1)(A2), Ge(A1)(A2), Ga(A1), Al(A1), Mn(A1), Fe(A1), Sn(A1)(A2), Pb(A1)(A2); A1 and A2 may be the same or different and are axial ligands comprising a group for reducing {tilde over (□)}-□ interactions between adjacent dye molecules; and (ii) printing the dye onto the substrate.
摘要:
An IR-absorbing naphthalocyanine dye of formula (I): wherein M is Ga(A1); A1 is selected from the group consisting of: OH and halogen; and W is a sulfonic acid group or salts thereof.
摘要:
An IR-absorbing naphthalocyanine dye of formula (I) is described: wherein M is Ga(A1); A1 is an axial ligand selected from —OH halogen, —OR3, —OC(O)R4; R1 and R2 may be the same or different and are selected from hydrogen or C1-12 alkoxy; R3 is selected from C1-12 alkyl, C5-12 aryl, C5-12 arylalkyl or Si(Rx)(Ry)(Rz); and R4 is selected from C1-12 alkyl, C5-12 aryl or C5-12 arylalkyl 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; and W is a sulfonic acid group, including salts thereof.
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 method for preparing a macrocyclic metal cyanine, comprising the step of providing a macrocyclic metal-free cyanine precursor and inserting a metal therein using a metal reagent, wherein said metal reagent comprises at least one organic ligand.