Waste Volume
Offcuts, trim waste, damaged sheets, and defective finished units generated during converting operations represent physical material losses in packaging manufacturing. In packaging plant accounting, packaging scrappage quantifies the percentage of raw paperboard lost between roll sheeting and final carton gluing. The metric tracks setup scrap, edge trim, die-cutting skeleton waste, and quality rejections.
Measurement applies to folding carton, rigid box, and corrugated container production.
Converting Loss
Edge trim from sheet cutters, die-cutting skeleton waste, and folder-gluer ejection units generate continuous scrap streams during manufacturing. High setup scrap occurs during press registration, color matching, and make-ready alignment phases on complex job changeovers. Unplanned machine jams or coating defects increase scrappage volume and reduce overall plant yield.
Recyclable paperboard scrap is baled and returned to paper mills, recovering a portion of initial material expenditure. Minimizing scrap percentages directly improves converting profit margins and lowers total material demand.
Material Recovery
On-site waste handling systems collect, shred, and compress paperboard offcuts into high-density bales for mill recycling. Baled clean scrap commands market value as high-grade secondary fiber for paperboard manufacturing. Efficient scrap separation prevents contamination between printed, foil-stamped, and laminated board grades.
Automated waste extraction maintains clean production areas and reduces manual handling labor.
