[Coco] yellowing of newsprint issues

[Robert Gault]

The yellowing is a result of oxidation of acid washed paper exposed to 
air. Sunlight is not the problem. Glossy paper typically has a clay coat 
and is less or not affected by air. High quality paper for book use is 
not acid washed wood pulp and is resistant to yellowing.

James C. Hrubik, Sr. wrote:
> Working on a scan @ 300 / .pdf of the final issue.  Unfortunately, my 
> copy is somewhat yellowed - and it has not been exposed to much 
> sunlight.  Even the inside pages have yellowed a bit.  The glossy issues 
> don't seem to have this problem, or not that I'm seeing so far.