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US 2011/0217404 A1Published application
Spunbond tower having electrostatic device
OwnerJean-Michel Dubusinventor
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Abstract
The invention relates to a spunbond tower that includes a die (103), a device (106) for cooling the filaments formed by the die, a device (107) for stretching the cooled filaments, a system (108) for forming a non-woven web (110) on a mat, said system including an electrostatic device (117) and a dehumidifier mounted at least on a formation air inlet between the bottom of the stretching device and the top of the formation system.
Claims16
Spunbond tower successively comprising in a downward direction:
- a die forming filaments from plastics material,
- a device for cooling the filaments formed by the die,
- a device for drawing the filaments cooled by the cooling device and having a bottom, and
- a system for forming, on a conveyor belt, a non-woven web from the filaments drawn by the drawing device, that system comprising a top and an electrostatic device and a forming air inlet being provided between the bottom of the drawing device and the top of the forming system, comprising a first dehumidifier for the forming air.
1 more element
Dependencies are inferred from the claim text.