Tinted SEM of surface of Post-it sticker
Numéro d’image : 11821588
| False-colour scanning electron micrograph (SEM) of the sticky surface of a 3M "Post-it" sticker,showing the resin spheres containing glue embedded in the paper. The spheres,between 15 & 40 micrometres in diameter,are made from urea formaldehyde resin,which ruptures easily under finger pressure. Each time the notepaper,with its sticky strip,is pressed to a surface a few spheres burst & release a film of glue. The stickers,which are made in a number of sizes by the 3M company,can therefore be reused many times,until finally all the spheres of glue have been used up. Burst spheres appear flattened. Magnification: X 85 at 35mm size. Coloured yellow. Original is BW print H100/079 | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library |
| Taille de l’image : | 5095 px × 3508 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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