Textile fiber blend comprising cellulosic fibers and ethylene 2,6-naphthalene dicarboxylate-halogenated comonomers copolyester fibers

Copolyester resin textile fibers comprising linear, filament-forming, random copolyester resin of at least 75 mol % of ethylene-2,6-naphthalene dicarboxylate units and at least 3 mol % up to 25 mol % of copolymerized halogenated ester unit is represented by the general formula ##STR28## wherein G is the residue of an alkylene glycol having from 2 to 10 carbon atoms, A is the residue of a saturated dicarboxylic acid selected from one of 2,5-dibromo-or 2,5-dichloroterephthalic acid, said ester unit present in an amount sufficient to provide at least 3.5% of the halogen, based on the weight of the copolyester, blended with flame-retardant cellulosic textile fibers in an amount of from about 10 to 90% copolyester fibers and from about 90 to 10% cellulosic fibers.