| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 04.00 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Method of producing a radiation light source detectable, anti-counterfeit paper, comprising - Dissolving a soluble fluorescent dye in solvent - Dewatering wood fibers having lumens/solids < 50% solids - Mixing dissolved dye with dewatered wood fibers such that said dye is loaded into lumens of fibers - Cleaning said loaded wood fibers to remove any excess dye located outside fiber's lumen - Sealing said dye inside fiber's lumen - Removing dye loaded wood fibers - Drying said loaded wood fibers - Incorporating said cleaned lumen loaded wood fibers into a papermaking pulp furnish at concn of Z2 of said total furnish, where Z2 (ppm) = concn of lumen loaded fibers in furnish = Z1 x (1 ton)/(2000 lbs) x 1,000,000 where Z1 - amount of lumen loaded fibers in furnish in lbs/ton of fiber wherein said cleaned, lumen loaded wood fibers are incorporated into said furnish at concn = 1 ppb - 25% - Forming said lumen loaded furnish into an anti-counterfeit paper Wherein said dye in lumen loaded fibers can be detected by using radiation light source |
| PATENT PHOTOCOPY | Available on request |
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