Munktell CxD pHoton™ Archival Products and Photographic Storage Papers

Munktell CXD pHoton^tm100% Cotton, Unbuffered, High Purity, Silver Image Safe Papers and Photographic Storage Products are produced at the Munktell paper mill which is famous for the production of the world's first filter paper.

They have been developed in collaboration with the School of Conservation at the Royal Danish Academy of Fine Arts, the Swedish National Council For Cultural Affairs and Uppsala University Library. The pHoton^tmrange consists of papers made from pure cotton linters containing no chemicals whatsoever and because of this they are probably the purest of all photographic storage papers. They are uncalendered to allow maximum air flow and prevent any potentially harmful build up of gases that may be omitted by the photographic material stored within the enclosure. Due to their purity and porosity, these papers can safely be used for long term storage of all kinds of photographic materials be they negatives or prints and irrespective of the photographic technique used to create them. Although primarily geared towards the storage of photographic material, the paper is equally well suited for storage of a multitude of other museum and archival treasures, such as textiles, historic documents, stamps, coins and archaeological objects or any other item requiring a high purity non alkaline environment.

Specifications pHoton^tm STORAGE PAPERS

100% cotton fibre from pure cotton linters
Unsized
Unbuffered
Uncalendered surface to allow maximum airflow
Free from Optical Brightening Agents
Choice of three g/m2 weights
Low average ash content of 0.06%
Passes silver tarnish test
Passes ANSI photographic activity test IT9.2 (ISO 10214)
Criterion 1: Effects on colloidal silver detector : Oxidizing influence
Criterion 2: Effects on colloidal silver detector : Reducing influence
Criterion 3: Staining of gelatine / photographic paper detector
Criterion 4: Mottling of colloidal silver detector
Reducible sulphur, as S, mg/kg, (ppm) less than 1
Test method reducible sulphur BP & BMA Procedure No.49 (1967)
pH value = 6.7
Trace Elements

Aluminium (Al)) = 29.3 ppm
Chlorine (Cl) = 15.0 ppm
Copper (Cu) = 0.4 ppm
Fluorine (F) = < 5.0 ppm
Sulphur (S) = < 8.9 ppm
Iron (Fe) = 5.3 ppm
Sodium (Na) = 70.8 ppm
Nitrogen (N) = < 2.4 ppm as nitrate
Potassium (K) = 5.7 ppm
Calcium (Ca) = 102.0 ppm
Munktell CXD pHoton^tm 4 flap enclosures available to suit most common photographic glass plate sizes
Special sizes and designs can be made to order on request POA.

Protected Design : Munktell CXD pHoton Stitch in Timecare^tm photographic envelopes and storage systems for albums and filing suspension. Tailored to meet most common sizes: 35, 60 and 70mm film. Adhesive free enclosures formed by the use of cotton sewing thread to create simple but effective protection from time tested materials

Applications

Photographic storage
Textile storage
Silver artifact and Metal storage.
Linings, backings and wrappings
Repairs

pHoton^tmpapers are subject to the Munktell quality management system adopting the stringent guidelines of ISO 9001.

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Munktell CxD pHoton™ Archival Products and Photographic Storage Papers

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