Introduction
Web type materials are usually fed into the finishing machine from a reel, submitted to a finishing process and then wound again at the machine exit. Lateral position errors which require the use of web guiding systems may occur at all the processing stages.
Web offset on reel change
On practically all reel changes the finished web and the new web meet with an offset causing irregularities in the following process stage.
Incorrectly wound reels
Fabric reels that are not precision-wound lead to incorrect web feeding to the processing machine.
Web travel during production
Mechanical processes, temperature, humidity and air currents act on the web during production and may have a negative influence on the web alignment.
