Press-forming molded pulp from repulped liquid packaging board: Role of heat input, pressing force, and defect formation

Laboratory sheets were prepared from repulped liquid packaging board (LPB) for press-forming experiments and tensile tests to study convertibility mechanical properties of molded pulp material developed the LPB. Maximum forming depth was utilized as a indicator, defect formation in press-formed samples observed with visual analysis. Female mold temperature pressing force altered among parameters. The results showed that laboratory had limited convertibility. fragile structure connected negative effects presence plastic particles material. Increased heat input decreased improved convertibility, during aggravated by flattening flange bottom regions samples. use LPB raw manufacturing found viable, presented solution offers an ecological alternative conventional recycling