Cotton paper wrapping for microfilms

A wrapping used to secure microfilm reels is a perfect protection against damage and accidental unreeling. It is a classic and very simple packaging made from cotton paper. This material does not contain an alkaline agent - calcium carbonate - owing to which it is perfectly neutral and can come into contact with chemically "agressive" photographic materials. 

• Cotton paper:
  - PAT certificate
  - 100% cotton cellulose
  - pH 7.0
  - colour: white
  - Kappa number < 5
  - water absorbency: Cobb60 < 25 g/m2
  - no dye migration
  - no optical brighteners
  - grammage: 120 g/m2 
• Disc for winding of the tie:
  - Castello cardboard: ISO 16245, PAT 
  - grammage: 800 g/m2
• Cotton tie:
  - 100% cotton yarn
• Stainless rivet
• Dimensions:
  330x35 mm