Phthalocyanine dye with extended conjugation, ink and detection system using same
AssigneeHewlett-Packard Development Company, L.P.
InventorsSivapackia Ganapathiappan, Zhang-Lin Zhou, Jayprakash C. Bhatt
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Abstract
A phthalocyanine dye with extended conjugation includes one or both of a phthalocyanine component and a naphthalocyanine component and at least one water soluble substituent on an aryl group of the phthalocyanine dye. The extended conjugation of the phthalocyanine dye includes at least one benzene moiety of the component being one of (a) joined to an aryl group either indirectly using an alkylene linkage or directly, (b) joined to a benzene moiety of another of the components to form an oligomer of the components, and (c) a combination of (a) and (b). The extended conjugation shifts absorption of the phthalocyanine dye to greater than 800 nm.
Claims20
A phthalocyanine dye with extended conjugation comprising:
- one or both of a phthalocyanine component and a naphthalocyanine component;
- and
- at least one water soluble substituent on an aryl group of the phthalocyanine dye,
- wherein the extended conjugation of the phthalocyanine dye comprises one of (a) at least three benzene moieties of the component each being joined to an aryl group indirectly using an alkynyl linkage, and (c) a combination of (a) and (b), wherein (b) is a benzene moiety of the component being directly joined to a benzene moiety of another of the components in a direct biphenyl linkage or shared between the respective components to form an oligomer of the components, the extended conjugation shifting absorption of the phthalocyanine dye to greater than 800 nm.
A phthalocyanine dye with extended conjugation that shifts absorption of the phthalocyanine dye to greater than 800 nm, the dye comprising a phthalocyanine compound having one or both of a phthalocyanine component and a naphthalocyanine component and that is an oligomer comprising one of or any combination of two or more of:
- where M is In—OSO3Na;
- where M is In.
An inkjet ink formulation comprising:
- an inkjet ink;
- and
- a phthalocyanine dye with extended conjugation either soluble or dispersed in the inkjet ink, the phthalocyanine dye being stable in the inkjet ink for a shelf life of the inkjet ink, the phthalocyanine dye comprising one or both of a phthalocyanine component and a naphthalocyanine component and at least one water soluble substituent on an aryl group of the phthalocyanine dye,
- wherein the extended conjugation of the phthalocyanine dye comprises one of (a) at least three benzene moieties of the component each being joined to an aryl group indirectly using an alkynyl linkage, (b) at least one benzene moiety of the component being directly joined to a benzene moiety of another of the components in a biphenyl linkage or shared between the respective components to form an oligomer of the components, and (c) a combination of (a) and (b), the extended conjugation shifting absorption of the phthalocyanine dye to greater than 800 nm.
A phthalocyanine dye with extended conjugation comprising:
- a phthalocyanine compound comprising one or both of a phthalocyanine component and a naphthalocyanine component;
- a metal complexed with a pyrrole moiety of the component at a nucleus of the component, the metal being one of a divalent metal, a trivalent metal or a tetravalent metal, and wherein the metal is further bonded to one or more groups selected from the group consisting of halogen, sulfate, sulfonate, hydroxyl, OSO3Z, and OCOR, where Z is selected from the group consisting of a hydrogen ion, a monovalent metal ion, and NR4+, and where R is independently selected from the group consisting of hydrogen, alkyl, aryl, a substituted alkyl, and a substituted aryl;
- and
- at least one water soluble substituent on an aryl group of the phthalocyanine dye,
- wherein the extended conjugation of the phthalocyanine dye comprises at least one benzene moiety of the component being either directly joined to a benzene moiety of another of the components in a direct biphenyl linkage or shared between the respective components to form an oligomer of the components, the extended conjugation shifting absorption of the phthalocyanine dye to greater than 800 nm.
A detection system comprising:
- a near infrared (NIR) illumination source;
- a medium that comprises a phthalocyanine dye with expanded conjugation, wherein the phthalocyanine dye comprises a component of one or both of phthalocyanine and naphthalocyanine, and at least one water soluble substituent on an aryl group of the phtalocyanine dye, the extended conjugation comprising one of (a) at least three benzene moieties of the component each being joined to an aryl group indirectly using an alkynyl linkage, (b) at least one benzene moiety of the component being directly joined to a benzene moiety of another of the components in a biphenyl linkage or shared between the respective components to form an oligomer of the components, and (c) a combination of (a) and (b), the extended conjugation shifting absorption of the dye to greater than 800 nm;
- and
- an NIR sensor that detects absorption of the phthalocyanine dye in the medium illuminated by the NIR illumination source.
Dependencies are inferred from the claim text.