Device for producing spunbonded nonwovens

Details Device for producing spunbonded nonwovens Device for producing spunbonded nonwovens

1999-01-08

2000-12-26

Mackey, James P.

Plastic article or earthenware shaping or treating: apparatus

Stock pressurizing means operably associated with downstream...

Including heating or cooling means

4253822, 425463, B29C 4700

Patent

active

061649503

ABSTRACT:
Rectangular or round spinning nozzle packs for extruding thermoplastic filaments each have both melt channels and orifices for the higher melting polymer compound and also melt channels with orifices through which is passed a polymer compound that melts at a temperature 5 to 50.degree. C. lower. Variously designed insulation channels thermally separate these melt channels, which are operated at different temperatures.

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