Surface of reusable Post-it sticker
Numéro d’image : 11821603
| False-colour scanning electron micrograph (SEM) of the sticky surface of a reusable "Post-it" sticker made by the 3M company. The micrograph shows embedded in the paper the spheres of resin that contain the glue. The spheres,between 15 & 40 micrometres in diameter,are made from urea formaldehyde resin,which ruptures easily under finger pressure. Each time the sticker is pressed to a surface a few spheres burst,releasing a film of glue. Others remain unbroken & can be used on another occasion. In this way,the stickers can be reused many times. In the micrograph,burst spheres appear flattened. Magnification: x26 at 35mm size. Yellow tint. Original is BW print H100/082. Ref: MICROCOSMOS,fig. 9.13,p. 180 | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Burgess, Dr. Jeremy |
| Taille de l’image : | 5125 px × 3465 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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