Loop formation in on-machine-seamed press fabrics using yarns comprising MXD6 polyamide resin material

摘要

A press fabric, for use on papermaking and similar machines, is of the open-ended variety, and has loops at each end enabling it to be closed into endless form during installation on the machine by means of a pin seam. The machine-direction (MD) yarns 1, from which the loops are formed during the flat or endless weaving of the fabric, are coated multifilaments. The coating 3, either permanent, semi-permanent, or soluble, gives the multifilament 2 a monofilament-like structure, enabling good loop formation and stability. The use of multifilament yarn provides a fabric having improved elasticity in the machine direction, and a greater degree of compressibility, following the removal of a soluble coating material, than can be obtained using monofilament yarn.