Contract Slitting Services Goes Back Quite a While {In The History of Paper Making

The history of industrial rewind slitting and roll slitting extends back so far as the early 1800’s after the first industrialized paper making machines was developed in England. Mechanised know-how were primarily used to assisted in the unwind and rewind operations.



Fast forward into the 21st century, nowadays the equipment is now very innovative along with the usage of servo driven magnetic motors in place of clutches and drive techniques that monitor, unwind and rewind tensions instantly. Automatic knife setup units are actually efficient at reducing set up time as well as improving quality, unheard of technology 50 years ago.

Other modern advances that have improved the slitting functionality include driven unwind systems, load cell tensioning and infrared web diameter detection. In effect to deal with large parent rolls and push the web through the rewind slitter, some will use driven unwinds. Load cell tensioning gives total tension system controls particularly for tension sensitive materials. Finally, infrared sensors are utilized to aid in supplying feedback to the central drive and ultimately keep the web at the proper tension from the beginning of the master to the end.

In rewind innovations over the years, the use of continuous wind and turret wind systems have been huge time savers to the rewind process. For continuous winders, after the roll is wound to the proper length, the rewind stops, cuts the web, pushes the finished set out of the way, drops in the next of cores into the rewind chucks, and the next set starts winding. The completed doff can be palletized as necessary. A variation on continuous winding is what’s known as turret winding. Turret winding uses a 2nd shaft to spin into place while the finished set can be taken off of the machine for packing. Turret winding spends a little less time stopped than does a continuous winder.

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Using some sophisticated integration with the rewinder, master changes can be made rapidly and extremely little slowdown with the rewind slitter.

If you run an internally converting department or a full service converting firm, finding the most beneficial methods to ensure very little downtime as you can will minimize labor costs and increase earnings. Companies which make use of many of these technologies are poised to be a success in the future.