Apparatus for applying fluid additive to fibrous material
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United States of America Patent
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Mar 3, 1987
Grant Date -
N/A
app pub date -
Dec 8, 1981
filing date -
Dec 12, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for applying fluid additive to a stream of fibrous material such as a filter tow. The apparatus provides structure for blowing air into the filter tow during or immediately after the application of the fluid additive, a plasticiser; this foams and distributes the plasticiser in the tow. Air may be delivered from a porous plate closely adjacent to the path of the tow or from nozzles in an air injecting unit. Alternatively air may be used to foam plasticiser at a location remote from the tow and foamed plasticiser subsequently conveyed to and into the tow by a roller.
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