Abstract: Disclosure describes ball-like structures formed from bundled, crimped fibers rounded around a central portion thereof as a core, the core being formed with a molten-fused structure and having the following stipulations:(a) a density of the molten-fused structure is not less than 75% based on a density of the crimped fibers forming the ball-like structures.(b) a length of the molten-fused structure is 5 to 50% based on a diameter of the ball-like structures, and(c) a withdrawing strength of a crimped fiber strand connected with the molten-fused structure is not less than 50% based on a linear strength of the crimped fiber strand itself used for the ball-like structures.
Abstract: Disclosed herein is a contact material for treating sewage, comprising a braid which is made of synthetic fibers and has loop piles, the weight of the synthetic fibers forming the loop piles being from 40 to 90% by weight of the synthetic fibers of the whole body of the braid.
Abstract: A process for manufacturing a string construction having a core thread and a network thread around them by extruding thread-like molten resin streams from an extruding apparatus in which an inner spinneret formed with grooves at the outer circumferential surface is rotatably mounted to an outer spinneret formed with grooves at the inner circumferential surface, and the outer circumferential surface and the inner circumferential surface are slidingly contacted to each other.
Abstract: A string construction for athletic rackets which can be frictionally engaged with a tennis ball or a badminton shuttlecock very well upon hitting it and which can be uniformly stretched on the athletic racket frame without being twisted, comprises a string-like core made of thermoplastic resin material and a tubular netlike structure made of thermoplastic resin material, the tubular netlike structure netting over and being secured to an outer circumference of the core, wherein the netlike structure includes a plurality of thread-like members forming a plurality of nodes at intersections thereof, all the thread-like members forming each node being integral with each other at each node, and projecting from the outer circumference of the core to a height substantially equal to each other at each node.
© 2024 Justia
