Silverbrook Research Pty Ltd

Scott Matthew Starling

Kia Silverbrook

Damon Donald Ridley

Simone Charlotte Vonwiller

Lachlan Everett Hall

Sutharsiny Indusegaram

Paul Lapstun

Simon Fielder

Graciel Gonzaga

Maxine Sintic

Alexandra Artemis Papadakis

A method of initiating a requested action in a computer system via a printed substrate. The substrate has human-readable information and machine-readable coded data printed thereon. The coded data is indicative of a substrate identity and of a plurality of locations on the substrate. The method comprises the steps of: (a) interacting with the substrate using an optically imaging sensing device; (b) imaging the coded data; (c) generating indicating data in the sensing device using the imaged coded data, the indicating data identifying the substrate identity and a position of the sensing device relative to the substrate; and communicating the indicating data to the computer system so that the computer system can initiate the requested action. The coded data is printed with an ink comprising an IR-absorbing naphthalocyanine dye.

Method of initiating requested action via substrate printed with naphthalocyanine dye

A salt of a sulfonated dye modulates a stability of the dye, particularly its ozonefastness. The salt comprises an organic cation selected from the group consisting of: wherein:

Sulfonated dye salts having improved stability

A method of formulating an aqueous ink having minimal visible coloration. The method includes the steps of: providing an aqueous ink formulation containing a sulfonated water-soluble IR-absorbing naphthalocyanine dye having a central metal atom moiety; and adjusting a pH of the formulation to a pH value in the range of 4 to 6.5 so as to minimize visible coloration of the formulation.

Method of formulating ink having minimal visible coloration

An ink cartridge for an inkjet printer contains an aqueous ink formulation. The ink formulation comprising an IR-absorbing naphthalocyanine dye of formula (II): or a salt form thereof, wherein:M is Ga(A);Ais an axial ligand selected from &#x2014;OH, halogen, &#x2014;OR, &#x2014;OC(O)Ror &#x2014;O(CHCHO)Rwherein e is an integer from 2 to 10 and Ris H, Calkyl or C(O)Calkyl;Rand Rmay be the same or different and are selected from hydrogen or Calkoxy;Ris selected from Calkyl, Caryl, Carylalkyl or Si(R)(R)(R);Ris selected from Calkyl, Caryl or Carylalkyl; andR, Rand Rmay be the same or different and are selected from Calkyl, Caryl, Carylalkyl, Calkoxy, Caryloxy or Carylalkoxy.The ink formulation has a characteristic pH in the range of 4 to 6.5.

Ink cartridge comprising weakly acidic naphthalocyanine ink formulation

A method of modulating a stability of a sulfonated dye, particularly its ozonefastness is provided. The method comprises providing a salt of the dye, wherein the salt comprises at least one organic cation selected from the group consisting of: wherein:

Method of modulating stability of sulfonated dye

A printing module for an analog printer. The printing module includes an ink supply, a printing plate and an ink applicator for disposing ink from the ink supply onto the plate. The ink contains an IR-absorbing phthalocyanine dye formulated in a solvent-based or oil-based ink vehicle. The phthalocyanine dye has sulfonate groups, wherein a counterion of each sulfonate group is a phosphonium cation. Each phosphonium cation is of formula: P(R)(R)(R)(R); each of R, R, Rand Ris independently selected from the group consisting of: Calkyl, Caryl and Carylalkyl; and at least one of R, R, Rand Rincludes more than 4 carbon atoms.

Analog printer including ink supply containing IR-absorbing phthalocyanine dye

An aqueous formulation comprises a sulfonated water-soluble IR-absorbing naphthalocyanine dye having a central metal atom moiety. A pH of the formulation is in the range of 4 to 6.5, which minimizes visibility of the formulation.

Aqueous formulation comprising low visibility naphthalocyanine dye

An inkjet ink comprising an IR-absorbing dye of formula (A): wherein

Inkjet containing phthalocyanine dye with non-planar groups

An inkjet ink for use in netpage, Hyperlabel and other applications. The ink includes an IR-absorbing dye of formula (I): wherein

Inkjet ink comprising gallium naphthalocyanine dye

A substrate having an inkjet ink disposed thereon. The ink comprises an IR-absorbing naphthalocyanine dye of formula (I): 

Substrate having inkjet ink comprising naphthalocyanine dye disposed thereon

A method of enabling entry of data into a computer system via a printed substrate. The substrate has a surface containing human-readable information and machine-readable coded data. The coded data is indicative of an identity of the substrate and of a plurality of reference points on the surface. The method includes the steps of: operatively positioning a sensing device relative to the surface and sensing the coded data; generating indicating data using the sensed coded data; and sending the indicating data to a computer system. The coded data comprises an IR-absorbing dye having a nitrogen-substituted phthalocyanine.

Method of enabling data entry using substrate comprising IR-absorbing dye

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 &#x3c0; systems of adjacent dye molecules, and assist in reducing absorption of visible wavelengths.

Substrate having IR-absorbing dye with branched axial ligands

An IR-absorbing naphthalocyanine dye of formula (I): whereinM is Ga(A);Ais selected from the group consisting of: OH and halogen; andW is a sulfonic acid group or salts thereof.

IR-absorbing gallium naphthalocyanine dye

A system for interacting with a coded substrate. The system comprises a substrate having human-readable information and machine-readable coded data disposed thereon and a sensing device for reading the machine-readable coded data. The coded data comprises an IR-absorbing phthalocyanine dye having sulfonate groups. A counterion of each sulfonate group is a phosphonium cation.

System for interacting with analog-printed substrate

The present invention provides an inkjet ink comprising an IR-absorbing naphthalocyanine dye of formula (I): wherein

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Balmain, Australia

Scott Matthew Starling