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Technology briefing
As far as objects of general transparent materials are concerned, fogging is due to the fact that the object itself is in a hot and cold environment. After being cooled, water vapor (steam) condenses into small water droplets on the surface of the object, causing the incident light to scatter. Therefore, the image of the object is blurred, so a layer of anti-fog layer can be made on the object surface to avoid fog condensation, to prevent blur of eye sight.
Based on years of optical film coating experience combined with special hydrophilic materials, Efun develops optical films with anti-fog function. This hydrophilic coating process is realized on PET Film in a roll-to-roll manner. This product mainly improves the hydrophilic and hydrophobic state of the substrate. The hydrophilic group of the hydrophilic coating will grab water molecules and reduce the surface tension of water. The water contact angle of the object makes the water molecules evenly spread on the surface of the glasses or glass to form a layer of water film without scatter the incident light. Figure 1 is the product structure of the anti-fog film, Table 1 is an example of product specifications, Figure 2 and Figure 3 are test reference examples, and Figure 4 is a comparison of the visual quality of the glass surface with or without anti-fog film.
Anti-fog film has a wide range of applications, such as architectural glass, lenses, greenhouses, convenience store freezers, transportation vehicles, electronic equipment, medical safety and wearable medical protective equipment, etc.
Fig. 1
Table 1
Fig. 2, Conclusion of a glass plate put on a
50℃ water for 10 minutes
Fig. 3, Conclusion of a glass plate with an
anti-fog coating put on a 50℃ water
for 10 minutes
Applications
Mobil display panel
Helmet
Eye goggle
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