| 摘要 |
The texturing nozzle is supplied with a heating medium such as hot air during a start-up phase for preheating of the nozzle and the associated parts of the texturing machine. After a predetermined temperature has been reached, superheated steam is delivered via change-over valve and a heater to the nozzle to carry out a texturing operation therein. The changeover valve may be operated to switch over to hot air during a running-down phase of the machine.
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