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pHoton Timelock Adhesive Free Negative Envelopes & Pockets DF01 .

pHoton Timelock Adhesive Free Negative Envelopes & Pockets DF01

Style code DF01

pHoton™ Timelock™ Adhesive Free Negative Envelopes & Pockets

pHoton™ Timelocks™ are made from 80gsm pHoton™ high purity 100% cotton un-buffered paper and have been designed to avoid the use of any adhesives to ensure the absolute safety of photographic negative masters that do not require frequent handling. They are meant for the long term storage of the most precious and sensitive of photographic archive material such as microfiche masters, where the utmost caution has to be taken against degradation from contact with potentially harmful elements such as adhesives that may in time react with the enclosed material. Eliminating the gluing process makes pHoton™ Timelocks™ safer and better value than conventional envelopes.

Specifications

  • 100% cotton fibre from pure cotton linters
  • Unsized
  • Unbuffered
  • Uncalendered surface from allowing maximum airflow
  • Free form Optical Brightening Agents (OBA )
  • Low average ash content of 0.06%
  • Passes Silver Tarnish Test
  • pH6.7
  • 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)

Applications

  • Absolute safety of photographic negative masters that do not require frequent handling.



Products

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Items 1 - 4 of 4         
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ItemNamePrice / Unit Order Multiple 
pHoton Timelock Envelope
PHTLOK6615
pHoton Timelock Envelope
80gsm, 250x45mm
£0.22 
View Item Details
pHoton Timelock Envelope
PHTLOK4551
pHoton Timelock Envelope
80gsm, 257x70mm
£0.35 
View Item Details
pHoton Timelock Envelope
PHTLOK6616
pHoton Timelock Envelope
80gsm,129x105mm
£0.27 
View Item Details
pHoton Timelock Microfiche
PHTLOK6617
pHoton Timelock Microfiche
80gsm,152x107mm
£0.32 
View Item Details
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