ABSTRACT The increase of wet web solid content after wet press and dry compressive strength were observed in lab study by judicious application of wood flour and starch for the old cor-rugated container (OCC). Pearl starch was better than cationic starch in strength devel-opment, but cationic starch was better for drainage. Application of vacuum on the mixed solution of wood flour and starch helped strength development further without loss of other properties. The effect of wood flour addition on wet web solid content improved as the wet pressing pressure increased. The use of wood flour and starch mixture improved wet web solid contents further.Keywords: OCC, wood flour, starch, wet pressing, compressive strength • 충남대학교 농업생명과학대학 환경소재공학과(Dept. of Biobased Materials, College of Agriculture and Life Science, Chungnam Natl. Univ. Daejeon 34134, Republic of Korea) † 교신저자(Corresponding Author): E-mail: ybseo@cnu.ac.kr http://dx.doi.org/10.7584/ktappi.2016.48.2.099Journal of Korea TAPPIVol. 48. No. 2, 2016, 99-105pISSN (Print): 0253-3200Printed in Korea