sidewinder Posted October 31, 2006 Report Posted October 31, 2006 Store in shade. Incidentally, the worst 'yellowing' effect I have had on covers (front and back) has been on LPs purchased from France. Too much sun over there? Quote
michel1969 Posted October 31, 2006 Author Report Posted October 31, 2006 Store in shade. Incidentally, the worst 'yellowing' effect I have had on covers (front and back) has been on LPs purchased from France. Too much sun over there? All my Lps are stored in the dark, actually, but don't you think that the INK used on graphics and notes tends to fox - to burn, in fact - the paper in itself ? This effect would be combined with the light. And regarding the excess of sun in France...this october would probably be suitable for the yellowing of covers... Quote
Jazzmoose Posted October 31, 2006 Report Posted October 31, 2006 I never had a problem with this once I quit smoking. Quote
Clunky Posted October 31, 2006 Report Posted October 31, 2006 Isn't the yellowing of old paper (inc vinyl sleeves) related to oxidization of sulphuric acid used in the bleaching of the paper pulp that is used. It becomes a yellow sulphate salt of some description. So perhaps storing LPs in an pure nitrogen might help ! Quote
michel1969 Posted October 31, 2006 Author Report Posted October 31, 2006 . But if the reason is purely chemical (does not depends on storage or smoke) why are some covers yellowed, and some not ? Quote
michel1969 Posted October 31, 2006 Author Report Posted October 31, 2006 Sometimes i wonder if the poly sleeves we use to protect covers do accelerate the yellowing (because acidity ? ) Any opinion/ knowledge ? Quote
mikeweil Posted October 31, 2006 Report Posted October 31, 2006 . But if the reason is purely chemical (does not depends on storage or smoke) why are some covers yellowed, and some not ? It actually depends on the quality of the paper used, although I can't reproduce details - same happend with books. Sunlight is a factor, but not alone. Quote
Dmitry Posted October 31, 2006 Report Posted October 31, 2006 I've noticed it on some Lp as well as cd covers. My take on this is that it has to do with the quality of paper itself, not anything else. Like Clunky said, the acids used to bleach paper will yellow it with time. That is why you see the inscription "printed on acid-free paper" inside the title pages of books sometimes. I'm afraid there's nothing we can do to stop it. Quote
brownie Posted October 31, 2006 Report Posted October 31, 2006 Most of the covers of the LPs I bought for more than 50 years show no trace of yellowing. They are stored vertically and since and since I have accumulated quite a lot, they are being kept pretty tight. with no air or dust creeping in! Many of those vinyls look nearmint! Quote
Jazzmoose Posted November 1, 2006 Report Posted November 1, 2006 Sometimes i wonder if the poly sleeves we use to protect covers do accelerate the yellowing (because acidity ? ) Any opinion/ knowledge ? If you're using PVC sleeves, yes, that can contribute to the problem. The elasticizers can migrate to the surface of the cover, and it ain't pretty. If you really want safe protection, go with mylar. Quote
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