Effect of environmental conditions on performance of corrugated sheet boxes manufacturing process

Abstract

Corrugated sheet material is very sensitive to the environmental conditions, especially moisture. The present study focuses on the mechanical behavior of corrugated sheet box board at different humidity and temperature conditions. The objective of this study is to study the important properties of corrugated sheet boxes at different climatic conditions and also to study the influence of the properties of corrugated sheet paper on the properties of corrugated board and box at various environmental conditions. The mechanical performance test carried out under controlled atmospheric conditions where the temperature (°C) range was studied from 20°C to 50°C and the relative humidity (Rh) range was studied from dry condition 30% Rh to severe condition 90% Rh. The results tested showed that the maximum compressive load of empty corrugated sheet box sealed exposed to moisture content decreased with the increase of temperature and relative humidity. In general it is observed in paper, corrugated sheet board and boxes that have optimum combined properties are obtained at moisture content level at 7-8% and hence moisture content of 7-8% may be the ideal value for corrugated sheet paper used in corrugated packaging industry.