This Timecare Ringbinder Box is made from Premier Archival boxboard. This board is acid free, lignin free and elemental chlorine free, with very low reducible sulphur content as required for the safe storage of photographic prints and negatives. It has 4 D-shaped rings. It protects against light, dust and humidity. It has double walls on three sides of the base which give extra rigidity, strength and an extra layer of protection against fire and water. A label holder is provided and the box can be stored in flat or upright position, with the pages hanging from the ring mechanism. Ring Capacity 40mm. Distance between rings (centre) 80 mm.
Material: Premier Archival Board
Grade: 1000 | 1300 microns
Colour: Grey (external) and White (internal)
Formats: A4 | Foolscap | A3
Specifications:
- High alpacellulose fibres content
- pH 7.5 - 9.5
- Buffered (average 3%) calcium carbonate (ISO 9706)
- EVACON R lamination adhesive (plasticiser free)
- Acid-free
- Internally sized with Alkyl Ketene Dimer (AKD)
- Externally sized with Non-Ionic Farina Starch
- Lignin-free (ASTMD 1030)
- O.B.A.'s free (optical brightening agents)
- Reducible Sulphur less than 0.8 parts per million (0,0008%) (TAPPI T406)
- P.A.T. Photographic Activity Test (ISO 18916)
- Permanent and durable quality ISO 16245-A Type A
- Photo-safe conforms to ISO 18902:2007(E)
- Lightfast - min 5 Blue Wool Scale test (BS1006:97 & TAPPI T475)