Charged collector apparatus for the production of meltblown elec

Details Charged collector apparatus for the production of meltblown elec Charged collector apparatus for the production of meltblown elec

1991-05-14

1993-07-13

Bushey, Scott

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

Orifice for filaments or fibers

264 22, 4251748E, 425464, B29C 7104

Patent

active

052271722

ABSTRACT:
The apparatus of the present invention employs a collector drum with an electrically charged surface for use in preparing electrically charged meltblown fibrous webs. The apparatus may be used as a primary charging system or, alternatively, with other charging system to enhance the charging of the web. The invention produces webs with exceptional filtration properties.

REFERENCES:
patent: 2116942 (1938-05-01), Formhals
patent: 3593074 (1971-07-01), Isakoff
patent: 4009508 (1977-03-01), Sternberg
patent: 4215682 (1980-08-01), Kubik et al.
patent: 4594203 (1986-06-01), Hagiwara et al.
patent: 4650411 (1987-03-01), Hassmann et al.
patent: 4904174 (1990-02-01), Moosmayer et al.
patent: 5051159 (1991-09-01), Togashi et al.
patent: 5122048 (1992-06-01), Deeds

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