It is not too much to say that the quality of the false twisted yarns is based on the heating time and temperature accuray.
However, finding the actual temperature of the running yarn on the heated plate is very hard indeed, and we can't calculated without to have the heat transfer rate between the heated plate and the runningyarns.
In this report, we seeked for this rate with our experimentation and tried to indicate the temperature curve of the yarns per its speed and heating time.
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