Process of manufacturing authenticatable paper products

Details Process of manufacturing authenticatable paper products Process of manufacturing authenticatable paper products

1999-01-20

2000-04-25

Silverman, Stanley S.

Paper making and fiber liberation

Processes and products

Safety, identification and fraud preventing paper

162134, 162184, 162185, 162162, 162158, 162137, 162198, 162 49, 162135, 1621818, 283 89, 283 92, 428916, 428207, D21H 2148, D21H 2140, D21H 1940, B42D 1510

Patent

active

060540214

ABSTRACT:
An authenticatable paper product is prepared by adding to a papermaking furnish fibers treated with from about 50-200 lb/ton of a fluorescent whitening agent (FWA). The paper made from the papermaking furnish will include fluorescent cellulosic fibers in an amount ranging from between 0.1-4.0 lb/ton to achieve FWA concentrations within the range of 1-20 ppm.

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Sakar in "Fluorescent Whitening Agents," Merrow Publishing Co. Ltd, pp. 12-50, Jan. 1971.
Crouse et al., "Fluorescent Whitening Agents in the Paper Industry," Tappi, vol. 64, No. 7, pp. 87-89, Jul. 1981.

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