Process for the production of non-woven material from endless fi

Details Process for the production of non-woven material from endless fi Process for the production of non-woven material from endless fi

1986-11-20

1989-07-11

Lorin, Hubert

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

264518, 264103, 264121, 2642102, 2642108, 26421114, 2642905, 239DIG7, D04H 300

Patent

active

048470350

ABSTRACT:
To produce non-woven materials, endless filaments in the form of a warp are drawn off a filament draw-off nozzle to which are joined a filament offlet, a filament guide tube and a spreading extruder. An amount of compressed air under high pressure is admitted to the filament draw-off nozzle. By means of the invention the amount of compressed air at the filament draw-off nozzle is reduced and at the same time an additional amount of compressed air under relatively low pressure is admitted between the filament guide tube and the spreading extruder by means of a propelling nozzle. In spite of an additional amount of compressed air at the propelling nozzle the reduction at the filament draw-off nozzle is so large that for the isothermal compression output as a whole a considerable savings in energy of almost 30% can be achieved, and this while maintaining the important filament draw-off force necessary for the drawing of the filaments inside the filament offlet. In addition, the additional compressed air also permits an improved, more even distribution of the warp at the exit of the spreading extruder, whereby the quality of the non-woven material is improved.

REFERENCES:
patent: 3738894 (1973-06-01), Lipscomb et al.

Affiliated with

Also associated with

Rating

Process for the production of non-woven material from endless fi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the production of non-woven material from endless fi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of non-woven material from endless fi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-435786