Apparatus for the continuous production of a spun-bond web

Details Apparatus for the continuous production of a spun-bond web Apparatus for the continuous production of a spun-bond web

1997-05-15

1998-09-29

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Continuous filament forming or film casting means with...

425 722, 425135, 2642108, 2641761, B29C 55000

Patent

active

058143491

ABSTRACT:
An apparatus for the continuous production of spun-bond web separates the in-lowing process air section including the aerodynamic drawing shaft at which the thermoplastic filaments form a spinneret are drawn, from the depositing section in which the filaments are passed through a diffusor and deposit in an entangled form as spun-bond web on a perforated sieve belt. The suction below the belt and the process air blower are independently controlled as part of the separation and the drawing channel forms an air lock while an air inlet gap is provided between the drawing channel and the inlet of the diffusor to further separate the two sections. The resulting apparatus has a high versatility with all products made and materials which can be used.

REFERENCES:
patent: 3773483 (1973-11-01), Schmidt
patent: 5211903 (1993-05-01), Reifenhauser
patent: 5460500 (1995-10-01), Geus et al.
patent: 5503784 (1996-04-01), Balk

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