coated carton board for shaped articles, the production line for the production of coated paperboardprocedure for the production of coated paperboard, and ways to reduce sprickbildningsbenägenheten du

摘要

PCT No. PCT/SE96/00079 Sec. 371 Date Oct. 10, 1997 Sec. 102(e) Date Oct. 10, 1997 PCT Filed Jan. 25, 1996 PCT Pub. No. WO96/28609 PCT Pub. Date Sep. 19, 1996The present invention relates to coated paperboard for formed articles, which paperboard consists of a fibermatrix in one, two or more layers and a coating and has adequate surface for printing and adequate surface gloss for each specific type of formed articles. The paperboard has been calendered after coating with a heatable calender having a soft extended nip, and has reduced density and reduced grammage at a given value for bending force compared to corresponding coated paperboard which has been calendered before or during and after coating with a heatable or non-heatable calender having a hard or soft nip. Additionally, a production line for the production of such coated paperboard, a process for the production of such coated paperboard, and a method of reducing the susceptibility to crack formation at folding of such a coated paperboard, are described.