摘要:
The present invention provides a base cloth for reinforcement produced by winding a weldable yarn on either one of a warp or weft or the both at a definite interval, arranging the warp and weft in the respective directions and then thermally welding the both yarns. According to this method, the fraying of warp or weft, particularly easy fluffing of carbon fibers, etc. can be prevented by winding the weldable yarn. And, it is sufficient for the weldable yarn to be present at the intersections between the warp and weft. Consequently, as compared with a case wherein the whole weft is impregnated with adhesives, penetration of the matrix resin can sufficiently be attained and thus, strength in the weft direction can be improved.
摘要:
Oriented net furniture support materials made from thermoplastic elastomers have been found to possess a unique combination of properties including high strength, low creep and good flexibility. These furniture support materials can be made by extrusion through a pair of concentric die sets rotating transversely to one another or by weaving of monofilament.
摘要:
Strong dimensionally stable high-melting nonwoven fibrous sheets comprised of filaments from an optically anisotropic melt-forming polymer and self-banded at a plurality of filament cross-over points, and a process for making such sheets.
摘要:
L'invention concerne un procédé pour la fabrication d'é toffes formées d'une nappe de fils parallèles de chaíne (2) thermosoudés à leurs points de croisement à un fil de trame (4) dans lequel: - on presse lesdits fils de chaíne (2) et de trame (4) à leurs points de croisement de manière à produire une déformation vers l'extérieur des parties latérales du fil de trame (4), tandis que la partie centrale de ce fil (4) reste pratiquement non déformé, - puis, on applique un champ électrique alternatif à haute fréquence (8) destiné à effectuer la thermosoudure, principale ment sur ces parties de fils déformés vers l'extérieur, caractérisé en ce que préalablement à la thermosoudure, on imbibe (18) les fils (4) au moyen d'un composé liquide à fortes pertes diélectriques, tel que de l'eau (20). Application: fabrication d'étoffes thermosoudées.