picture 3: Fournisseur
Our friction devices are equipped with a fournisseur (yarn feeder) (see picture 3)
to have a constant, nearly free tension at the beginning of the tension device. So only
the friction of the yarn and not the quality of the winding is measured. This is also one
further point to get more reproducible results.
With this nearly zero tension we avoid using a second tension measuring head.
Instruction Manual FRICTION MEASURING SYSTEM CPT/CTC / Version 2.0 – 06.2020
4
To get same results, with one yarn at different locations, besides same climate, the same
settings of the tension device system are necessary. For this, we produce calibration yarn.
This specially cleaned and rinsed calibration yarn, which is from one dye lot and lubricated
with our lubricant Silwa 145 KS at our SL2 lubrication system, gives a very
constant friction, also at different humidity. A consistent level of quality of the calibration yarn
is very important, especially if the friction devices are used at different locations.
It is important to set standards for production control.
The friction measuring file can be send easily by E-mail.
