The production of recycle corrugated paper from used corrugated container

Abstract

The objective of this research project was to develop a condition and suitable mixing ratios between 2 widely used corrugated containers, which were American Old Corrugated Container (AOCC) and Local Old Corrugated Container (LOCC), in order to produce usable recycle paper. This studied was found that the pulp from AOCC contained higher ratio of long-fiber pulp than from LOCC and this ratio was also close to that of Unbleached Softwood Kraft Pulp (UBKP), which was a virgin pulp. At the same degree of refining, AOCC pulp provides the physical properties including tensile index tear index and ringcrush higher than LOCC pulp. The recycle paper produced from the mixture of AOCC and LOCC, where the ratio of AOCC to LOCC was greater than 50% had physical properties including tensile index over 21.0 kN.m/kg tear index over 10.2 Nm²/kg and ringcrush over 115 N. Therefore, it was possible to use a mixture of LOCC and AOCC to produce usable recycle paper, complied with the Thai Industrial Standard for corrugated paper which the industries could use the result to further develop into an industrial scale to reduce the use of virgin pulp and production cost in the future.