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J.J. Berzelius 1779 - 1848
The Swedish chemist J.J. Berzelius is regarded as the inventor of the first real filter paper. It was he who first started using pure waterleaf all-rag paper for the retention of precipitates in chemical analysis. At the suggestion of Berzelius, the development and manufacture of such paper was begun around 1815 at J.H. Munktell's paper mill at Grycksbo, similar production was later begun in England and Germany, but the "Swedish Filter Paper" retained its leading position, and its characteristics particularly its purity, set the standard for analytical filter papers. The paper which was hand-made at the time of Berzelius, is still made at the same paper mill today, but now with the aid of modern paper making technology. |
J.J. Berzelius 1779 1848 |
Munktell Filter Papers were delivered in hand-made birch bark packages |
Unique machine used by Munktell for the production of quality papers |
pHotontm folder for prints and document storage. |
pHotontm Four Flap Envelope for glass plates. |
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pHotontm Sleeves and Pockets "Stitch in Timecare" for the storage of negative film. Tailored to meet most common sizes: 35mm, 60mm and 70mm film. Sleeves are sewn with cotton thread to guarantee that nothing can accelerate the aging of the film. The porous nature of the paper prevents the build up of harmful gases within the enclosures which can happen with less porous storage papers and plastic enclosures. |
