Fluorescent marking liquid

Details Fluorescent marking liquid Fluorescent marking liquid

1989-12-18

1992-01-28

Seidleck, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

25230132, 25230135, 427157, 428690, C09K 1102, C09K 1106

Patent

active

050843273

ABSTRACT:
A new fluorescent aqueous marking liquid is described, which contains 0.20 to 2.0 % by weight of cumarin C.J. Basic Yellow 40 dye. The liquid is buffered to a pH value of from 3 to 5; it contains an acrylic resin dispersion at a pH of 3 to 5 with a particle agglomerate of 35 to 150 nm. The liquid does not act on a third dye, especially triphenylmethane dye, which is used frequently in carbon paper and is used also on smooth surfaces such as glass plastic foil or glazing paper.

REFERENCES:
patent: 2844594 (1958-07-01), Long
patent: 4238384 (1980-12-01), Blumberg et al.
patent: 4256900 (1981-03-01), Rave
patent: 4670183 (1987-06-01), Louman et al.

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