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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...

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10y ago

What else can I help you with?