CORE BASE PAPER FOR CORRUGATED FIBERBOARD

摘要

PROBLEM TO BE SOLVED: To provide a core base paper for a corrugated fiberboard, which has improved compression strength without damaging laminating properties (lamination suitability), disintegration properties, and economical efficiency. SOLUTION: The core base paper for the corrugated fiberboard includes waste paper pulp as a main raw material and has two layers. The core base paper is obtained by inserting an aqueous solution of starch between wet papers at a wire part to form a laminate, and coating both surfaces of the laminate with the aqueous solution of the starch at a coater part by a film-transfer method, and has a specific compression strength based on JIS P 8126:2005 [compression strength test method (ring crush method) of paper and paperboard] in the lateral direction of 180 N×m2/g or more. COPYRIGHT: (C)2009,JPO&INPIT