Waterproof infrared absorptive jet printing ink

Details Waterproof infrared absorptive jet printing ink Waterproof infrared absorptive jet printing ink

1979-06-29

1981-05-26

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

260 296H, C09D 1100

Patent

active

042696275

ABSTRACT:
An improved infrared absorptive jet printing ink is provided. The composition includes an aqueous solution of a mixture of infrared absorptive water soluble dyestuffs, an alkaline agent which completely solubilizes the dyestuffs in water and aids in their penetration of and fixation to paper, and a humectant to prevent the composition from drying out. Optional additives include a fiber fixing agent or a water repellent agent and a defoaming agent. The ink runs well in a multi-jet printer, is smudge resistant and waterproof when dry, has a high absorptivity at infrared wavelengths, and is optically black.

REFERENCES:
patent: 3533811 (1970-10-01), Clements et al.
patent: 3705043 (1972-12-01), Zabiak
patent: 3846141 (1974-11-01), Ostergren et al.
patent: 3870528 (1975-03-01), Edds et al.
patent: 3903034 (1975-09-01), Zabiak et al.
patent: 3945837 (1976-03-01), Miyata et al.
patent: 4136076 (1979-01-01), Daniels

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