Pouch made of permanent paper with alkaline reserve, type Chronos®.
Allows the insertion and extraction of a graphic art document, including a drawing with powdery lines or pastel, limiting the risk of damage by friction.
Features: 120g and 200g, pH8.5, natural white, 100% bleached chemical pulp. Neutral bonding. Conforms to ISO 16245 type A, ISO 18916 and ISO 9706.