초록 ▼

A Conventional blanket material, preferably a woven fabric or scrim, is formed into a loop of the desired dimensions and impregnated and coated with a two-component urethane resin. As the urethane is applied to the woven substrate, short fibers are introduced into the urethane through a nozzle which

A Conventional blanket material, preferably a woven fabric or scrim, is formed into a loop of the desired dimensions and impregnated and coated with a two-component urethane resin. As the urethane is applied to the woven substrate, short fibers are introduced into the urethane through a nozzle which aligns the fibers to run in the cross-machine direction. The fibers are introduced in sufficient quantities to provide significant structural reinforcement of the urethane in the cross-machine direction. The coated blanket is then ground to a desired constant thickness and an array of parallel grooves running in the machine direction are milled into the urethane coating. The anisotropic fiber reinforcement provides sufficient modulus to the urethane system to prevent the grooves from collapsing under the applied loads of the extended nip press. The reinforcing fibers may be glass, carbon fiber, synthetic polymer or other structural fiber material.

대표청구항 ▼

1. A blanket for an extended nip press comprising:a blanket material forming a loop of a selected cross-machine dimension and a selected circumferential dimension, and a two component polyurethane resin impregnating the loop and forming a coating thereon, the polyurethane resin having short fibers e

1. A blanket for an extended nip press comprising:a blanket material forming a loop of a selected cross-machine dimension and a selected circumferential dimension, and a two component polyurethane resin impregnating the loop and forming a coating thereon, the polyurethane resin having short fibers embedded therein, the fibers being substantially aligned with the cross-machine direction, the fibers being in sufficient quantities to provide significant structural reinforcement of the urethane in the cross-machine direction, wherein the coating has portions defining a plurality of parallel grooves extending about the loop in the machine direction, and wherein the short fiber reinforcement reinforces the urethane to prevent the grooves from collapsing under the applied loads of an extended nip press.