Effects of Relative humidity Conditions on the Compressive Strength Changes of Corrugating Mediums

상대습도조건에 따른 골심지의 압축강도 변화에 관한 연구

  • 이준호 (대구대학교 식품·생명·화학공학부) ;
  • 김수일 (경북과학대학 산업포장전공) ;
  • 하영선 (대구대학교 식품·생명·화학공학부)
  • Published : 2000.03.01

Abstract

Changes in the compressive strength of four typical corrugating mediums (K$_2$A, AS and S) as affected by relative humidity conditions were compared and their relative cost effectiveness was analysed. All mediums lost their compressive strength as relative humidity increased. at the relative humidity of 93% , As medium lost 58% of its initial strength while S medium did about 40%. Calculations of compress factor and compress factor by price indicated that $K_2$ medium was the most cost effective and maintained the highest compressive strength among the mediums tested. It was recommended that $K_2$ medium could be effectively used to make corrugated fiberboard especially for fresh agricultural product packaging .

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