You can actually buy bluing agent for your laundry, it's pretty old school, but ... | Hacker News

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		jrwoodruff on Sept 16, 2010 \| parent \| context \| favorite \| on: The Most Powerful Colors in the World ...And How Y... You can actually buy bluing agent for your laundry, it's pretty old school, but actually adds a bit of blue dye for the same effect. http://www.mrsstewart.com/

cperciva on Sept 16, 2010 [–]

adds a bit of blue dye for the same effect

Blue dye != blue fluorescent dye. Blue dye simply absorbs non-blue light; blue fluorescent dye absorbs UV and emits blue light.

jrwoodruff on Sept 16, 2010 | [–]

Ok then, a similar effect :)

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