Airvelope® Clip hybrid enclosure for storage of paper

The latest version of the innovative hybrid enclosures, Airvelope® Clip is an enclosure with separate pockets and holes for clipping into a binder. This solution makes it fast and easy to look through the collections. Hybrid enclosures combine best qualities of two different materials: the front cover is made of perfectly transparent and chemically inert Melinex polyester, whereas the material used for the back cover is PAT-certified breathable, acid-free Carta Guardia paper, compliant with ISO 16245. No adhesives are used to produce our hybrid enclosures; the two materials are sealed by means of ultrasonic sealing technology.

This enclosure is designed for the storage of documents, postcards and small-format documents and makes it possible to go through the contents without taking them out.

• Front cover - Melinex polyester:
  - PAT certificate
  - 100% polyester
  - transparent
  - neutral pH 
  - thickness: 100 µm 
• Back cover - Carta Guardia paperboard:
  - ISO 16245-A and PAT certificates
  - 100% cellulose
  - pH 7.5
  - alkaline reserve > 0.4 mol/kg
  - colour: dark grey
  - Kappa number < 5
  - water absorbency: Cobb₆₀ < 25 g/m2
  - no dye migration
  - no optical brighteners
  - grammage: 300 g/m2