Double Drum Thermobonding Calenders
For dual side effects in one passage a double drum calender can be considered. This calender is equipped with 2 heating drums that can be controlled in temperature separately. Whilst the upper drum releases its energy directly to the non woven, will the lower drum transfer its energy to the belt which in return transfers it to the substrate. So the bonding effect can set at a different level front-back of the non woven on purpose or be aimed at similar effects at both sides.
The threading of the non woven is identical to a single drum machine and the calender still has its very compact footprint.
Dual side – LFC back-to-back
An alternative to the double drum calender are 2 LFC installed “back-to-back”. In this concept both calenders can be set at the different or same settings depending on the desired effect. The difference will be that identical effects can be obtained at both sides of the non woven.
If you would like to know more about Klieverik’s double drum calenders, feel free to contact Klieverik or your local agent.
We will be happy to help you decide which calender would be best for you.