Process for obtaining low residual aramid materials

A process for reducing the content of one or more residuals in aramid fibers or filaments, comprising, in this order, the steps of

• a. introducing the aramid fibers or filaments into a extraction solution being free of any coloring ingredient and adjusted to a pH ranging of from 2 to 7,
• b. adjusting the extraction solution and the aramid fibers or filaments to a temperature of from 80° C. to 140° C.
• c. removing the aramid fibers or filaments from the extraction solution
• d. introducing the aramid fibers or filaments into a first rinsing solution adjusted to a pH ranging of from 2 to 7,
• e. optionally comprising a detergent,
• f. adjusting the first rinsing solution and the aramid fibers or filaments to a temperature of from 70° C. to 100° C.,
• g. removing the aramid fibers or filaments from the first rinsing solution,
• wherein the extraction solution is an aqueous solution comprising of from 0 to 40 g/l of a salt component and of from 0 to 40 g/l of a carrier component, and
• wherein the sum of the salt and carrier components is of from 20 g/l to 80 g/l;
• wherein the process provides aramid fibers or filaments having 0.01 to 0.2 weight percent orthodichlorobenzene;
• N-methyl-2-pyrrolidone(NMP);
• 1,3-Dimethyl-2-Imidazolidinone(DMI);
• or N,N-dimethylacetamide (DMAC).