CONCENTRATED POLYMER COMPOSITION (MASTERBATCH), PRODUCTION METHOD THEREOF AND USE OF SAME FOR ADDING TO POLYESTER FIBRES AND FILAMENTS ()

摘要

The invention pertains to the field of synthetic-fibre production for the textile industry and relates to the design and use of a concentrated polymeric composition ("masterbatch") comprising a polymer from the metlacrylate family as a support polymer, representing between 30% and 99% by weight of the polymer composition; and at least one additive and/or pigment representing between 1% and 70% by weight of said composition. During the extrusion process, the composition of the invention is incorporated into the molten fibre and filament-forming polyester polymers in order to increase speed in the spinning process (productivity).