Want this question answered?
I am trying to fade the dye in fabrics with common UV lights, like that of tanning bed bulbs. There are options with amounts of both UVA and UVB. I am after a result with the highest degradation. Is UV degradation and Phototendering to dyes mainly from UVA or UVB? Would the level of degradation be higher faster with more UVA or UVB? Not really talking about what would be 'dagerous', besides UVB creates cancer so I would have thought that much more dangerous then UVA...
it means that our protection from UVA/UVB is lessened
cheap sunglasses can be dangerous ask your optometrist for this advice
There is no such thing. The two are adjacent, in other words, the range for UVB starts where UVA ends.
U.V can be separated according to its energy level and wavelength with UVa having the lowest energy and longest wavelength followed by UVb and ultimately UVc which has the shortest wavelength and highest energy level. You may be familiar with UVa and UVb as the part of the suns rays which cause tanning, aging, and skin cancer. The Sun also emits UVc the most powerful and dangerous type of U.V., fortunately for us most of this is stopped in the upper atmosphere by gasses like ozone.
There are 2 types of ultra violet rays, UVA and UVB. UVA causes aging and wrinkles, and UVB causes the sun burns.
no,You need both uva and uvb light
There are three types of rays- UVA, UVB and UVC. UVB and UVA act differently upon our skin and do not equally damage it. The UVB rays are mostly responsible for most cases of sunburn, as they are shorter than UVA rays. The UVA rays are longer so reach the inner state of the skin and causes skin damage.
UVC UVB UVA
Ultra violet class A and B radiation
The UV radiation that reaches the Earth’s surface is mostly UVA and some UVB. Almost half the daytime total of the more harmful UVB radiation is received between the hours of 10 a.m. and 4 p.m. Even on a cloudy day, you can be sunburned by UVB radiation.
The UV radiation that reaches the Earth’s surface is mostly UVA and some UVB. Almost half the daytime total of the more harmful UVB radiation is received between the hours of 10 a.m. and 4 p.m. Even on a cloudy day, you can be sunburned by UVB radiation.