Abstract: A process for wet spinning a meta-aramid polymer solutions having a salt content of at least 3 percent by weight produces a one step, fully wet drawable fiber that has desirable physical properties without subjecting the fiber to hot stretching.

Abstract: The method of preventing color-degrading interactions between certain optical brighteners and filaments made from a modacrylic polymer containing as a copolymer a halogenated ethylenically unsaturated monomer, the optical brightener preferably having the formula: ##STR1## where X and Y are basic groups selected from the group consisting of --NH.sub.2, --H(CH.sub.3).sub.2, and --N.sup.+ (CH.sub.3).sub.3 Z, where Z is selected from the group consisting of chloride, sulphate and bromide anions, n is 0 to 3, and R is an alkyl group containing 1 to 4 carbon atoms, wherein an aqueous liquid is applied to the filaments, the liquid containing 0.01 to 0.5 weight percent of a compound having the formula: ##STR2## wherein R is a member selected from the group consisting of an alkyl radical having 1 to 11 carbon atoms, a phenyl radical and an alkyl phenyl radical containing no more than eight carbon atoms.