Greaseproof paper is paper made from the highest quality bleached cellulose with the property of not letting hard and liquid fats through. Depending on the needs, it may form a total or partial grease barrier. This depends on the needs of the customer and the costs he wants to incur in order to obtain a satisfactory result. Grease tightness is achieved by dosing a suitable greaseproof agent into the paper pulp or onto the surface of the band. This paper is often used to pack butter or lard, it can also be found in confectioneries and wherever a grease barrier is needed.