High quality envelopes

Envelopes are produced from a variety of papers - bleached and unbleached kraft paper, light brown (called manila) kraft, imitation kraft (containing recycled fiber), cartridge, MG, ribbed, basket weave, and untearable synthetic papers.

Paper quality is important, due to the rapid tensioning, printing, cutting, folding, gluing, heating, strength, surface pick, and air resistance.

Grammage: 63-150 g/m2