Tubular meltblowing die

Details Tubular meltblowing die Tubular meltblowing die

1995-02-16

1997-03-04

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

Orifice for filaments or fibers

425 7, 425192S, 4253782, 264 12, B29C 4712

Patent

active

056077017

ABSTRACT:
A meltblowing die for producing nonwoven polymer webs includes an inner tube having a plurality of orifices arranged in a row thereon, and an outer tube encasing the inner tube and having a slot formed therein in registry with the row orifices. The inner tube and outer tubes are constructed to define converging air passages on either side of the row of orifices, whereby hot air delivered to the outer tube converges on polymer fibers extruded through the orifices and imparts drag forces thereon to attenuate and draw down the fibers to microsize.

REFERENCES:
patent: 2528407 (1950-10-01), Yeandle
patent: 3531053 (1970-09-01), Miller et al.
patent: 3970417 (1976-07-01), Page
patent: 5080569 (1992-01-01), Gubernick et al.
patent: 5100435 (1992-03-01), Onwumere

Affiliated with

Also associated with

Rating

Tubular meltblowing die does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tubular meltblowing die, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tubular meltblowing die will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2144422