Folding coated stock is done best with an air feed folder (see our article on air vs. Friction Feed Folders) as coated stocks have a shiny coating on them that can either be on one side (C1S) or both sides (C2S).

 

Using a friction feed folder with coated paper can be similar to driving a car on ice, spinning insead of gaining traction to feed the sheets consistently. Air feed folders traditionally have a  higher duty cycle at the same time as the ability to feed a wider range of stock based on their paper feeding mechanism not relying on a feed tire to pick, seperate and feed the sheets in.

 

If you are folding small quatities of silk, satin or semi-gloss paper you may be able to use a friciton feed folder but the process may not be seamless. When attempting this it is recommended to ensure the feed rollers and fold rollers are clean. Using water and a soft brush or cloth ensure that the rollers have a dull matte look instead of a sheen will provide the optimal condition for the folder to work.