Paper waste on reel holders in paper mills and in corrugating plants can occur for various causes and circumstances:

  • During the splicing phase
  • Due to the incomplete unwinding of the reels
  • Due to damaged cores, which therefore can no longer be used
  • Due to lateral damage of the roll
How to optimize paper and cardboard production processes thus eliminating waste
This photo compares a thick and robust core on the right with a latest generation core, thin and less resistant, on the left.

WASTE PAPER DURING THE SPLICING PHASE

The splicing of a reel end with the start of a new one can take place manually or automatically. The operator, or the machine, tries to make the splice when there is the least residual paper on the core. If the paper shows damages, the operator is forced to splice earlier, thus leaving a greater quantity of paper on the core and causing an incomplete unwinding of the rolls.

PAPER WASTE DUE TO AN INCOMPLETE UNWINDING OF THE ROLL

An incomplete unwinding of the core can occur due to paper damage which causes an earlier splice which leaves a greater quantity of paper on the core than expected.

An incomplete unwinding of the roll can also be caused by a non-optimal grip between the mechanical chuck and the core. In fact, slipping causes a delay in the adhesion and engagement of the reel.

These factors also cause a loss of precision in calculating the meters of paper unwound by the automatic splicers. The machines make the junction at the wrong time compared to the one initially programmed, leaving a greater residual paper than expected.

WASTE OF PAPER CAUSED BY THE DAMAGED CORES

Slippage is one of the main causes of core damage.

It is caused both by poorly performing technologies and chucks and by the decreasing quality and thickness of the cores, which makes them more fragile and sensitive to damage. Damaged cores cannot be reused.

PAPER WASTE CAUSED BY LATERAL DAMAGE OF THE REEL

Core damage can cause deformation and breakage of the adjacent paper and preclude its use. This circumstance can also occur as a result of the use of poorly performing technologies and chucks that, during the loading and unwinding of the reel, ruin the lateral surface.

Are you aware of how much paper your factory wastes every day, month and year?
How much could you save by eliminating the waste of paper on your reel holder?

Optimizing paper production processes and reducing waste is fundamental for safeguarding the plant’s economy as well as for pursuing ecological purposes.

It is therefore possible to adopt measures on  reel stands in the paper mill and in the corrugating plants that allow to eliminate paper waste, save money and maximize performances by optimizing production processes.

 

Duplex, roll ejector chuck, has been designed by Renova to meet these needs.

Duplex is equipped with huge jaws that eliminate the problem of slippage and allow perfect adherence from the first work phase, without damaging the core of the reel, even the thinnest and most fragile, always guaranteeing a complete unwinding and the reuse of the core.

Duplex has been designed to respect the lateral surface of the reel without spoiling the paper. This allows the complete use and unwinding of the reel, always guaranteeing a splice without residual paper.