Bleaching and dyeing; fluid treatment and chemical modification – Dye or potential dye composition – additive – treatment,... – Fluorescent dye – e.g. – stilbene – benzimidazole – benzoxazole,...
Patent
1985-06-20
1987-04-07
Hayes, Lorenzo B.
Bleaching and dyeing; fluid treatment and chemical modification
Dye or potential dye composition, additive, treatment,...
Fluorescent dye, e.g., stilbene, benzimidazole, benzoxazole,...
C09B 6910
Patent
active
046557881
ABSTRACT:
The invention relates to security fibers and other allied materials made luminescent by a dyeing process employing rare-earth compounds and their applications in fiduciary documents and other materials requiring authentication.
REFERENCES:
patent: 3473027 (1969-10-01), Freeman et al.
patent: 4451521 (1984-05-01), Kaule et al.
patent: 4451530 (1984-05-01), Kaule et al.
Hayes Lorenzo B.
Truskett Brooks Alan
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