Castello cardboard
Description
Top quality cardboard produced from 100% pure cellulose. Solid two-ply board, dark grey with white inner side. Used to produce storage products for the most valuable collections.
Material
- Tektura Castello:
- ISO 16245 type A and PAT certificates
- 100% cellulose
- colour: dark grey with white inner side
- pH > 7.5
- alkaline reserve > 0.4 mol/kg
- Kappa number < 5
- water absorbency: Cobb60 < 25 g/m2
- no dye migration
- no optical brighteners
- grammages: 600, 800, 1100 and 1400 g/m2
