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All TFA mechanical packing yarns are recognized under the brand name, TORPACK™.
All TORPACK™ items contain TEFLON® Brand PTFE dispersion.
TEFLON® Brand fibers are relatively simple to process using standard textile processes. The key items to focus on prior to any processing steps are:
1) Control Room Conditions: Assure proper temperature and humidity control in the room you when you process the yarn to control static electric charge. The ideal conditions for processing are 70% relative humidity at a temperature of 70 0 Fahrenheit or 21 0 Celsius or higher.
2) Yarn conditioning: If the yarn has been stored in a cold dry warehouse it should be brought into the processing room about 1 day before use. The box and any protective covering on the yarn should be opened so it can acclimate to the warmer more humid conditions to avoid static buildup on the yarn during use.
3) Proper Tube Position: For best results the yarn tube should be positioned horizontally not vertically. Pulling the yarn off the package vertically may cause sloughing of the yarn off the package and trapped yarn under the tube. The only consideration with a horizontal tube position is the distance from the end of the tube to the yarn takeoff eyelet. Ideally this distance should be 6 inches or less to control yarn whip.
4) Yarn Tension: Controlling yarn tension is a critical step for successful processing in all textile process whether knitting or weaving. The simplest approach is to use disk tensioning devices. These simple devices are usually adequate for knitting and warping yarns. However, yarn accumulators may be required for the fill yarn in high speed weaving.
5) Yarn Twist: Because our yarns are multifilament in structure and we do not use an antistatic finish on our continuous filament yarns, you may find it necessary to twist our yarns to obtain the best results in your process.
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