摘要:
A process for producing a filament assembly composed of a thermotropic liquid crystal polymer, which comprises melt extruding a thermotropic liquid crystal polymer through an orifice nozzle into a high-speed fluid to thereby hold filaments spun right under the spinning nozzle at a high temperature, so that the filaments are taken up at a high draft ratio by the frictional force of the high-speed fluid.
摘要:
A process for producing a filament assembly composed of a thermotropic liquid crystal polymer, includes the step of melt extruding a thermotropic liquid crystal polymer through an orifice nozzle into a high-speed fluid to thereby hold filaments spun right under the spinning nozzle at a high temperature, so that the filaments are taken up at a high draft ratio by the frictional force of the high-speed fluid.
摘要:
A wrapping apparatus which comprises:means for supplying a band-like member,means for stretching the band-like member in at least lateral direction thereof, the lateral stretch means comprising a unit for running the band-like member to spread out the member so that it forms a sector (an unfolded fan) and a unit for detachably gripping the regions (or margins) of the band-like member respectively near the opposite widthwise ends thereof so that they are detachable from the running unit, andmeans for winding the stretched band-like member around an article for the wrapping thereof.As one embodiment of the present invention, a method for wrapping an article with said wrapping apparatus is disclosed.
摘要:
A non-woven fabric is characterized by including a filament layer in which one or more continuous filaments composed of a polymeric material are spirally collected substantially along a shape obtained by offsetting an ellipse having an elongated major axis in a plane. This non-woven fabric can be obtained by spinning a filament composed of a polymeric material, vibrating the filament, amplifying vibration of the filament, and collecting the filament into an elliptic shape having an elongated major axis so that the filament is arranged in a direction of the major axis.