stagedoorjohnny

 

What are you basing that statement on? There is quite a bit of scientific evidence that suggests that it is acidity, and not necessarily the lignin content of the paper, that determines paper strength and permanence upon aging. Springhill Offset is alum-rosin sized, which means it is inherently acidic. I will grant you that high lignin content paper tends to react more with atmospheric pollutants than lignin free paper, but that's why it's not appropriate to compare the Springhill Offset results 1:1 with high lignin content groundwood. But that does not mean you should make the logical leap that we can learn nothing from the Springhill Offset results and simply disregard them as though high lignin content paper will react the opposite way upon aging. It simply means that they will age at different rates, with the high lignin content paper aging faster.

 

The process and chemistry of making newsprint versus freesheet is so different. Depending on when that test was done, the brightness on that Springhill Offset was either 83 bt., 86 bt., or what it is today, 90 bt. Offset standards have changed through the years. In comparison, newsprint today is 59-60 bt. And back as recent as the 1970's, it was 56 bt. That is a huge difference in brightness and the amount and types of chemicals used in the process to "whiten" the sheet are very different. I understand the acidity, but there are lots of differences in composition besides that and I can't imagine them not having an impact. Can you get a ratio? I don't know, perhaps. But in order to get one, you have to test the newsprint and the coated groundwood. And if you do that, you have a much better answer regardless of the freesheet test.

Are there any tests out there on newsprint and/or coated groundwood? How about those two grades from samples manufactured in the 1940's or 50's? The grade standards were a little different then, so it could make a difference within similar grades. Either one of those I would love to see. But even those wouldn't be a "be all end all" because of all the variables involved. But I'd rather slice and disect that one.

Also, no one is equating Springhill Offset testing results with newsprint on a 1:1 basis. We're just discussing the results from the LOC's article. To say that these results are completely irrelevant to how groundwood paper ages is not accurate either. The lignin in the groundwood pulp will obviously cause the paper to age more rapidly and create additional aging byproducts than lignin-free paper like the Springhill Offset, but that does not mean we can't discuss the Springhill Offset results at all.

 

I see where you are coming from. But a groundwood sheet is so much different from a freesheet, I don't think you could equate the results with anything. They are completely different types of paper by nature and manufacturing process.

And I think you are wrong Stagedoor, in the sense of I think the covers should be included in this discussion because they are the item that is bearing the brunt of the heat, if heat was even used. The interiors will warm up but they are not the pages being pressed. You cannot really heat press interior flaws with a flat press.

 

Absolutely. And also how the uncoated groundwood reacts with the cover, not just seperately.

 

Assuming (as I do) that glossy comic book paper reacts the same way as other kinds of paper.........

 

A basic chemistry lecture would do you wonders and the lab so much more............

 

yeah, you the man!

Although I do not agree with ImageMask's delivery, he is right. This assumption is 100% inaccurate.

All the information being delivered here sounds great to the ears. But the only thing that is relevant is information and testing on newsprint, (uncoated groundwood) which is the insides of the comic book and if you want to include the cover, coated groundwood. Tests on anything else and any other paper grades mean little or nothing to this discussion.

My one comment is on the question you raised re the length of time the samples of Springhill Offset paper (an alum rosin sized paper, non-archival quality) experienced in the aging chambers. If you read all of the accompanying articles, it seems that the various samples degraded to a state of brittleness as quickly as 6 hours (in the case of the stacks aged in aluminized PET at 100C and 50%RH) and that the total length of the testing exposure was 90 days for the various samples.

 

Springhill Offset is a freesheet, contains no groundwood.

Great book. (thumbs u I love the patriotic Uncle Sam covers as well.

That's a really nice pick up, congrats! One of my favorite early Supes.

I can't let a Timely guy have the nicest Supes 14 around these parts.

I love the Cosmic Aeroplane pedigree. After the big 3 of Church, Larson, and Reilly, it's my favorite.

 

i like it alot too, but being a timely guy i'd have to get chicago in there, and i really like pennsylvania's as well.

Chicagos.

Win, I'll make you change your tune in a couple weeks.

A Timely guy's updated Superman collection...

 

Don't pigeon hole yourself like that, Richard. We all know you are well beyond this.

We've seen some of your books posted here and you are truly a funny book aficionado. Or as we call it around these parts... a big friggin' geek.

Richard, where do you find these wonderful funny books? Very nice.

I am officially jumping on the Nedor band-wagon!

Been trying to get this book for a few years. It took an Action 7 to pry it loose...not straight up, but this is the one book in the trade that I am keeping.

It will go nicely with the 6. Yahoo!

Beauiful book, Richard. That is definitely one of the tougher books in the run.

Yanks!

 

 

 

 

 

 

 

(worship)

Talk about coincidence! Here we are talking about Wonderworlds when I get a package in.

So I open it and what do you suppose was inside?

And it is the Allentown copy to boot! Big Big Thanks to RHG! (thumbs u

That is BEAUTIFUL.

Allentown is one ped that I do not currently own but would love to. Congrats!

In the meantime, here is Detective 15 (Church copy):

 

One of my favorite Flessel covers of all time.

And is there a better way to see it than the Church copy? Just amazing.

Over the weekend, I finally took the time to take a few group shots. I thought that I would dust off this old thread for the first series of shots. Here are some very early New Comics/New Adventures:

That is just a ridiculous set of books, especially in that condition.

Beautiful book!

But I must apologize...I think I ran your bid up a few bucks.

No problem. Hey, that's part of the game. Just watch your back the next time a pedigreed Timely comes up for auction. The shoe will be on the other foot!

A recent pick up.

Man... I just love Central Valleys.

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Man, do I love this book.

Richard, every time you post this one I feel compelled to highlight it. This and the Fighting Yank #6.

Great book!

Congrats, all of them are beauties.

All great books, Richard.

I had to highlight this one, though. A Rockford Timely with that kind of page quality definitely deserves another look.

Just in from the C-Link auction...

Very nice, Richard. #3 has always been my favorite of the early Supes.

Cool cover, never saw that issue before.

Not too many people have. That is arguably the toughest issue in the run.