摘要:
Process and apparatus for spinning polymer filaments permits the obtaining of skin-core filament structure by feeding a polymer composition to a spinnerette at a flow rate sufficient to obtain a spinning speed of about 10 to 200 meters per minute through the spinnerette; heating the polymer composition at a location at or adjacent to the spinnerette so as to heat the polymer composition to a sufficient temperature to obtain a skin-core filament structure upon quenching in an oxidative atmosphere; extruding the heated polymer composition through the spinnerette at a spinning speed of about 10 to 200 meters per minute to form molten filaments; and quenching the molten filaments in an oxidative atmosphere so as to effect oxidative chain scission degradation of at least a surface of the molten filaments to obtain filaments having a skin-core structure.
摘要:
Process and apparatus for spinning polymer filaments permits the obtaining of skin-core filament structure by feeding a polymer composition to a spinnerette at a flow rate sufficient to obtain a spinning speed of about 10 to 200 meters per minute through the spinnerette; heating the polymer composition at a location at or adjacent to the spinnerette so as to heat the polymer composition to a sufficient temperature to obtain a skin-core filament structure upon quenching in an oxidative atmosphere; extruding the heated polymer composition through the spinnerette at a spinning speed of about 10 to 200 meters per minute to form molten filaments; and quenching the molten filaments in an oxidative atmosphere so as to effect oxidative chain scission degradation of at least a surface of the molten filaments to obtain filaments having a skin-core structure.
摘要:
Process and apparatus for the manufacture of polyolefin-containing fibers, preferably high-smectic content polyolefin-containing fibers, wherein a spin height of less than about 4 meters is utilized at spinning speeds of at least about 500 m/min. Further, guidance wings and/or an exhaust extensions are disclosed for various spinning systems to assist in the quenching of fibers. Fibers produced by the invention, preferably skin-core fiber, enable the production of nonwoven materials having excellent properties.
摘要:
Thermobondable fiber of at least one first component of polypropylene having a melt flow rate of 0.5-30, and at least one second component of polypropylene having a melt flow rate of 60-1000.
摘要:
Thermobondable fiber of at least one first component of polypropylene having a melt flow rate of 0.5-30, and at least one second component of polypropylene having a melt flow rate of 60-1000.
摘要:
Thermobondable fiber of at least one first component of polypropylene having a melt flow rate of 0.5-30, and at least one second component of polypropylene having a melt flow rate of 60-1000.
摘要:
Thermobondable fiber of at least one first component of polypropylene having a melt flow rate of 0.5-30, and at least one second component of polypropylene having a melt flow rate of 60-1000.
摘要:
The electric wire fixture device is provided with a bottom wall on which the electric wire is placed, and a side wall upstanding from the bottom wall. The side wall is provided with an aperture passed through by a fixing member for fixing the electric wire. The fixing member fixes the electric wire so that the fixing member passes through the aperture after being wound around the electric wire and that the electric wire is then brought close to the side wall. The side wall is provided with a pair of ribs projecting toward the electric wire from the side wall. The pair of the ribs is disposed spaced along a longitudinal direction of the electric wire, and the pair of ribs is disposed to position the aperture therebetween.
摘要:
The present invention provides a waterproof box which can improve water performance and work efficiency, and can reduce space. When washing water hits in the lower surface 33h of first waterproof portion 33 of an upper cover 15, spay is generated. At this time, an outer surface 30b, which is formed in a tapered shape, of first waterproof portion 30 abuts on an inner surface 33g, which is formed in a tapered shape, of the first waterproof portion 33. Further, the outer surface 30b engages with the inner surface 33g. As a result, the inlet of a minute path 27 is closed. Even if water leaks, force of the water is reduced because the water enters in a groove 33b or 35a. The water in which force of the water is reduced falls down.
摘要:
In one arrangement of press contact terminals, each press contact terminal (1) includes an electric contact part (2), a bent part (4), and a press contact part (3) for being connected with an electric wire. The electric contact parts (2) are arranged in line, the bent parts (4) are bent alternately forward and backward in perpendicular to the line for arranging the press contact parts (1) alternately in different directions. Each press contact terminal (1) has an identical shape. In another arrangement, press contact terminals (17), (18) include shorter bent parts (19) and longer bent parts (18) respectively. The electric contact parts (26) are arranged in line. The bent parts (19), (20) are bent in one direction perpendicular to the line, and alternately arranged. In the other arrangement, neighboring press contact parts (2) of the press contact terminals (1) overlap each other in a direction perpendicular to a line in which the press contact terminals (1) are arranged.