FIELD: chemical industry, more particularly technology of organic compounds and manufacture of artificial fibrous and film materials. SUBSTANCE: invention makes it possible to protect effectively films of cellulose triacetate from light-oxidative destruction due to the fact that composition comprises 8-10 wt. % of cellulose triacetate, 0.011-0.033 wt. % of dibenzalmethaphenylene diamine and up to 100 wt % of mixture of methylene chloride with ethanol in 9:1 volumetric ratio. Number of disruptions of TAC macromolecules after UV irradiation is decreased by several times. EFFECT: improved light resistance of films.
