Phthalocyanine dye formulations
First Claim
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1. An aqueous formulation comprising a sulfonated water-soluble IR-absorbing naphthalocyanine dye, wherein a pH of said formulation is in the range of to 6.5, and wherein said naphthalocyanine dye comprises a central metal atom moiety.
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Abstract
An aqueous formulation containing an IR-absorbing phthalocyanine dye. A pH of the formulation is in the range of 3.5 to 7. The formulation has a red-shifted Q-band whilst maintaining compatibility with CMYK inkjet inks
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Citations
20 Claims
- 1. An aqueous formulation comprising a sulfonated water-soluble IR-absorbing naphthalocyanine dye, wherein a pH of said formulation is in the range of to 6.5, and wherein said naphthalocyanine dye comprises a central metal atom moiety.
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2. (canceled)
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12-13. -13. (canceled)
Specification