Packaging Knowledge

What paper suits an instruction leaflet? Thin, opaque and fold-tolerant. Most leaflets sit between 60 and 120 gsm, with 70

What does the Mullen test measure? It measures the pressure needed to rupture a piece of board or corrugated sheet

What does an ink adhesion test actually check? Whether the printed film is bonded to the board strongly enough to

What belongs on a packaging specification sheet? Enough detail that a factory which has never spoken to you can make

What is a FEFCO code? It is a four-digit number from the common European standard for corrugated box constructions, used

What makes a mark mandatory? Mandatory text and symbols are those a market requires before a product can legally be