FIELD: production of dope-dyed acetate cellulose and triacetate fiber fluorescent in the band of 505 nm. SUBSTANCE: method for production of acetate cellulose and triacetate dope-dyed fiber consists in introduction into molding solution of polymer of fluorescent dye with the general formula given in the invention description in the amount of 0.3-0.7% of polymer mass. Produced color features high light fastness, resistance to wet treatment and to organic solvents. EFFECT: higher efficiency. 3 tbl
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