Score Line

Score Line is a term used in the packaging and printing industry, referring to a crease or indentation pressed into cardboard, corrugated board, or paperboard to facilitate clean folding along that line. In foreign trade, score lines are commonly found in production requirements for cartons, color boxes, display stands, and other packaging. Usage scenarios include: when customers provide packaging design drawings, they mark the score line positions and dimensions; factories perform die-cutting and folding according to the score lines to ensure accurate packaging formation. Precautions: The score line depth must be moderate—too deep may cause breakage, too shallow may result in unclear creases; score lines usually work together with die-cutting, slotting, and other processes, and differ from 'Crease'—score line emphasizes the pre-pressed linear mark, while crease can be a natural or mechanically formed fold line. Foreign trade contracts must specify score line tolerances, materials, and testing standards to avoid packaging damage or customer rejection due to poor folding.