New colorless transparent UVA bottle with excellent performance

A colorless, transparent, UV-blocking UVA glass bottle has recently been introduced, causing widespread concern.

The biggest feature of glass bottles is their ability to clearly see the transparency of the contents. However, because of this, outside light can easily pass through the container, resulting in deterioration of the contents. For example, when beer is exposed to sunlight for a long time, it will produce odor and fading. Foreign experiments show that when the light wavelength is 406nm-500nm, the beer will fade until it smells. The glass bottle is produced by adding UV-absorbing metal oxides to the glass bottles, and using color complementary effects to add certain metals or their oxides to discolor the colored glass.

For a UVA glass and normal glass with a thickness of 3.5 mm, a random sampling test of light transmittance at a wavelength of 330 nm shows that ordinary glass is 60.6% and UVA glass is only 2.5%. Sunshine exposure experiments on ordinary glass bottles and UVA glass bottles also showed that the former had a much higher degree of discoloration and deterioration than the latter.