Patent ID: 7387703
Filing Date: 2008-06-17
Classification: D21G,D21H

Abstract:
1. A method for manufacturing a surface sized release paper, the method comprising: calendering a body layer in a calender that includes at least one nip formed between a hard-faced roll and a soft counter surface to provide a calendered release paper, the calendered release paper being formed of fibre raw material and having a moisture level of at least about 13 wt. % to provide a grammage of the calendered release paper of from about 50 to about 90 g/m surface sizing the calendered release paper with a surface sizing treatment agent to provide the surface sized release paper, the quantity of the surface sizing treatment agent being less than about 0.7 g/m applying a release composition to the sized surface of the release paper to provide a release agent surface, the release agent surface not absorbing an adhesive when an adhesive is applied thereto as much as a release paper from the same body layer which has not been calendered with a moisture level of at least 13 weight percent, which has been surface sized with less than about 0.7 g/m