Method of printing an IR-absorbing dye onto a substrate

US7825108B2 · kind B2 · utility

Assignee

• Silverbrook Research Pty Ltd · AU

Inventors

• Simone Charlotte Vonwiller · Forbes, AU
• Scott Matthew Starling · Sydney, AU
• Damon Donald Ridley · Sydney, AU
• Lachlan Everett Hall · Sydney, AU
• Simon Fielder · Sydney, AU
• Maxine Sintic · Sydney, AU
• Sutharsiny Indusegaram · Sydney, AU
• Kia Silverbrook · Sydney, AU
• Paul Lapstun · Sydney, AU

Key dates

• Filing date: Nov 3, 2008
• Grant date: Nov 2, 2010
• Expiry date: Dec 26, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D11/32
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

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.