What effect will LED lights have if they shine on T206s?

[Cliff Bowman]

Originally Posted by Snowman

You can also reverse toning/foxing putting said card in a greenhouse full of plants. And no, I'm not joking.

I need to put my comic collection in a greenhouse for six months then.

[GasHouseGang]

Originally Posted by Cliff Bowman

I need to put my comic collection in a greenhouse for six months then.

I wonder how putting a card in a greenhouse would help get rid of foxing? And who figured this out the first time?

[Snowman]

Originally Posted by GasHouseGang

I wonder how putting a card in a greenhouse would help get rid of foxing? And who figured this out the first time?

I don't know if I'm the first person to figure it out, but I don't know of anyone else that has ever done this or tried it. I came up with the idea on my own. However, I do know that in the early days of making paper, people used to stretch large scrolls and sheets out and lay them on the grass to whiten the paper for the same reasons. That's where I got the idea from.

[Snowman]

Originally Posted by Cliff Bowman

I need to put my comic collection in a greenhouse for six months then.

You would need to remove them from any slabs for it to work. It's a result of the photosynthesis process. It deoxidizes the paper as the plants convert carbon dioxide into oxygen. Then as the oxygen releases and combines with the uv light from the sun, it reverses the toning of papers which was caused by oxidation due to the acidity of the paper stock. That's also why cards from specific sets tone more than others. The heavier the wood pulp content is in a card stock, the more acidic it will be, and the more it will tone over time.