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PGM Jimmy Olsen #63 w/ soil dot
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6 posts in this topic

Hello, the book has top edge coloring.  Is this foxing?

Also a small dot on the FC.  If the book were perfect, how does the spot affect the grade?

Thank you for your time and help.

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On 6/10/2024 at 10:35 AM, Pukie said:

Is this foxing?

No.  It's oxidation.  Here's a very, very basic explanation:

The principal component of comic book paper paper is cellulose extracted from minimally-purified wood pulp.  Wood (and thus "cheap" paper) also contains lignin.

Tanning/yellowing of cheap paper is generally due to a chemical process known as oxidation.  Oxidation is frequently induced by exposure to light ("photo-oxidation").  Although both cellulose and lignin can oxidize, it's the oxidation of lignin that is the main cause of yellowing, toning, and/or tanning of comic book paper.

:foryou:  :hi:

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Thanks for all the input.

If preparing books for sale, and having to set asking prices, would oxidation be treated more or less harshly than the same amount of foxing?

I am sure I have been noting some defects using inaccurate terminology.

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