Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Production of continuous or running length
Patent
1991-01-25
1992-05-12
Heitbrink, Jill L.
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Production of continuous or running length
264103, 2642108, 425 722, 425 73, 425 831, D01D 5085
Patent
active
051125625
ABSTRACT:
Method and apparatus for manufacturing span bond nonwoven fabrics formed from continuous fibers which are small in fineness and high in strength and manufactured by the steps of spinning for obtaining a continuously drawn fiber by blowing a molten resin extruded out of a spinning nozzle by heated gases blown out of the periphery of the spinning nozzle; drawing for further drawing the obtained continuously drawn fiber by an air stream produced due to a pressure difference of gases; the extreme end of the nozzle being a distance of 0.5 to 2 m from the place where further drawing occurs; collecting for collection the drawn continuous fiber to collect the fibers; and uniting for uniting the collected continuous fibers together to form nonwoven fabrics.
REFERENCES:
patent: 3502763 (1970-03-01), Hartmann
patent: 4380570 (1983-04-01), Schwarz
patent: 4826415 (1989-05-01), Mende
patent: 4964197 (1990-10-01), Mente et al.
Heitbrink Jill L.
Mitsui Petrochemical Industries Ltd.
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