I open my sleeveless portfolios today and saw yellow splotches on many pages of many different portfolios. Printed about 9 months ago on Epson archival, premium presentation paper (formerlly enhanced matter -- two prints matted together to a thick double sided prints). Never seen this in the five years I've been using the paper.
I would not think it's the paper.
It's definitely not from the print touching another print as it widespread and the yellow look is consistent acroos many books and many pages.
I have a few ideas, but am curious first if anyone has ever seen such a thing. thanks.
1) I had a new frame shop mount these print (double sided) -- still he used heat activated mounting tissue, they looked fine for several months. I would not think this is it.
2) I had new wood/ laminate floor installed in the apartment a few months ago. A lot of dust floated about from the guys sawing. Still, the books looks fine for a couple of months after this.
3) After the new floors, I did move a large house lamp much closer to the bookcase which had the sleeveless books. Still that seems far fetched.
I'm out of theories. any help appreciated
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