초록 ▼

This invention pertains to papermaking felts, methods of making such felts, methods of using the felts, and methods of making paper using such felts. A felt of the invention contains at least one substrate web having a fuse-bonded joint extending across the width of the felt. The joint is preferably

This invention pertains to papermaking felts, methods of making such felts, methods of using the felts, and methods of making paper using such felts. A felt of the invention contains at least one substrate web having a fuse-bonded joint extending across the width of the felt. The joint is preferably formed by superposing, onto each other, end portions of a flat-woven substrate web element, with the end portions extending away from the ends in a common direction, and concurrently severing the ends from the end portions, and fuse bonding the end portions to each other, along a common cut line.

대표청구항 ▼

A method of making a papermaking felt circumscribing a closed loop path, the papermaking felt comprising a substrate web, the papermaking felt having opposing first and second surfaces, and first and second batts of fibrous material assembled to the first and second surfaces, the papermaking felt ha

A method of making a papermaking felt circumscribing a closed loop path, the papermaking felt comprising a substrate web, the papermaking felt having opposing first and second surfaces, and first and second batts of fibrous material assembled to the first and second surfaces, the papermaking felt having a first length along the closed loop path and a first width extending transverse to the length, the substrate web having opposing third and fourth surfaces, the method comprising the steps of: (a) fabricating a flat-weave substrate web precursor, the flat-weave substrate web precursor having a second length, a second width transverse to the second length, and a weave pattern; (b) severing, from the flat-weave substrate web precursor, a substrate web element having a third length, and a third width transverse to the third length, first and second ends, and corresponding first and second edges; (c) forming the substrate web element into a closed loop, and thereby forming the substrate web element into the substrate web, by joining the first and second ends and forming, in the substrate web element, at least one fuse-bonded joint extending across the substrate web element, and correspondingly across the substrate web, between the first and second edges in a direction transverse to the length; and (d) securing a batt of fibrous material to at least one of the third and fourth surfaces.