Grafton® MPC features a smooth, sophisticated matte finish in a versatile cover and folding carton material.
Folding and Scoring:
Grafton® MPC has excellent performance results with folding and scoring. A 3 pt. score is recommended for the 17 pt sheet and a 4 pt rule is recommended for the 23 pt sheet. For packaging applications using Grafton MPC, wider score lines are necessary to handle the additional stress demands of a box hinge where the score may be folded 90° the opposite way.
Scoring rules should be rounded to prevent cutting the board (we suggest rounding to 0.005” radius).
Scoring and folding should go with the grain. When scoring in both directions is required, keep the longest score in the direction of the grain.
Grafton® MPC yields excellent results when foil stamped and embossed. Consult your foil supplier for recommendation based on artwork.
For best results we recommend the use of UV inks. Please consult with your printer.
Grafton® MPC is ideally suited to screen printing. UV or solvent based inks may be used. Consult your screen printer for ink and screen size recommendations.
Grafton® MPC is an excellent performer for silk screen-printing. However, it is recommended that in silk screen printing that quick-drying gloss inks be used instead of the more conventional non-gloss inks. The pressboard can be either air dried on racks or through tunnel dryers. However, if tunnel dryers are used, temperatures should be kept at a minimum.>