Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

How can I avoid flow lines in calendar films generated by calendaring process?

0
Posted

How can I avoid flow lines in calendar films generated by calendaring process?

0

The parameters having a positive influence on the apparition of flow lines are: – Use our special grade SolVin 460SL. – Reduce the temperature differences between film on the roll and rolling bank. – Increase the size of rolling bank. – Increase the level of processing aids (need very well balanced, too much shows a reverse effect). – Increase temperature differences between the two last rolls. – Increase rotating calendar nip (very important rotating regular). – Reduce calendar speed. – If possible, increase the thickness of the film. – Reduce the friction on the take off system. – Take a very balanced recipe (lubricants, processing aids and MBS/Acrylic Modifier) for the best melt flow. f.

Related Questions

Thanksgiving questions

*Sadly, we had to bring back ads too. Hopefully more targeted.