Infrared printing ink and method of making same

Details Infrared printing ink and method of making same Infrared printing ink and method of making same

1994-11-10

1995-10-24

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 21A, 106410, C09D 1102

Patent

active

054606462

ABSTRACT:
An infrared printing ink. The printing ink can be read with illumination by a near IR light source and an IR detector. The ink includes a pigment, a vehicle, and a solvent. The infrared ink pigment is silicon (IV) 2,3-naphthalocyanine bis((R.sub.1)(R.sub.2)(R.sub.3)-silyloxide) wherein R.sub.1, R.sub.2 and R.sub.3 are selected from the group, consisting of an alkyl group, at least one aliphatic cyclic group and at least one aromatic ring. The present inks are produced by mixing the pigment with the solvent to form a colorant solution which is then stirred with the vehicle to form an ink paste.

REFERENCES:
patent: 3759947 (1973-09-01), Pugin et al.
patent: 5093147 (1992-03-01), Andrus et al.
A Silicon Phthalocyanine and a Silicon Naphthalocyanine: Synthesis Electrochemistry, and Electrogenerated Chemiluminescence, Wheeler B. L., et al., J. Am. Chem. Soc. 1984, 106, pp. 7404-7410.
Synthesis and Photochemical Properties of Aluminum, Gallium, and Tin Naphthalocyanies, Ford, W. E., et al., Am. Chem. Soc., Inorganic Chemistry, vol. 31, No. 16, 1992, pp. 3371-3378, no month available.
Near IR-Readable Printing Inks, Takimoto, H. Chem. Abstracts vol. 110, 1989, p. 118, no month available.
Optical Recording Media Comprising a Layer Containing a Metal Naphthalocvyanine, Seiji, T. et al., Chem. Abstracts vol. 112, 1990, p. 66829, no month available.
Near-Infrared-Sensitive Blank For Printing Platemaking Using a Laser Beam, Hiroshi, T. et al., Chem. Abstracts, vol. 112, 1990, p. 66810, no month available.

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