Bayer Aktiengesellschaft

Richard Herold

Edgar Muschelknautz

Heiko Herold

Rudolf J Klee

A liquid jet, which is not decomposed to droplets, is guided onto a hot yarn wad in a cooling section with rod guide means, and this leads to rapid, very uniform cooling. Smooth thread travel is produced during take-off at thread speeds of 2000 m/min and more. One deflection of the thread is usually sufficient for drying purposes since the liquid is thereby centrifuged off.

Method of cooling stuffer crimped yarn

An airstream impinging laterally on a thread can convey a running thread through an opening. This 'placing' of threads in nozzles fails at elevated thread speeds. According to the invention, placing succeeds even at high thread speeds if a strong stream of propelling gas is divided in the nozzle into edge streams which are deflected outwards and a fine central stream which conveys the thread through the narrow opening.

Growing community of inventors

Dormagen, Germany

Richard Herold