CORRUGATED CARDBOARD SHEET AND PRODUCT FORMED BY PRESSING CORRUGATED CARDBOARD SHEET

摘要

PROBLEM TO BE SOLVED: To provide a corrugated cardboard sheet that has both longitudinal and transverse extensibility and is suitable for press forming the sheets and provide products obtained by press-forming the corrugated cardboard sheets.;SOLUTION: Both of the liner and the core are constructed with extensible paper to obtain corrugated cardboard sheets having sufficient breaking elongation. The press-formed products having no crack caused by the press forming can be obtained without any specific pre-treatment.;COPYRIGHT: (C)2005,JPO&NCIPI