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  1. #11

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    I'm with Jim Jones. I have prints made on RC paper from the early seventies that are fine. I believe they are all kodak paper.

  2. #12

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    I've got stuff from late seventies and it looks fine.

    A properly processed, toned and properly stored RC print (assuming paper from a good maker) will probably outlive all of us. Fiber should go even longer.

  3. #13
    Ian Grant's Avatar
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    Early 70's RC papers suffered from image bleaching if the prints were stored in plastic folders, this was a major problem. Most of the prints I placed in plastic portfolio sleeves suffered, and the highlight detail has completely bleached out. Other prints made at the same time are still fine.

    Ian

  4. #14
    bobwysiwyg's Avatar
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    Thank you all for the replies and cumulative experiences.
    WYSIWYG - At least that's my goal.

    Portfolio-http://apug.org/forums/portfolios.php?u=25518

  5. #15
    Nicholas Lindan's Avatar
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    Quote Originally Posted by Ian Grant View Post
    Early 70's RC papers suffered from image bleaching if the prints were stored in plastic folders
    That's been my experience -- if RC prints were left lying loose or in redrope portfolios they lasted. If RC prints were bagged or framed then there were problems. Agfa papers were notorious for bronzing.
    DARKROOM AUTOMATION
    f-Stop Timers - Enlarging Meters
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  6. #16

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    Quote Originally Posted by AgX View Post
    The first generation of PE/RC papers suffered from yellowing (and brittleness?) of the polyethylene foils over time. This was believed to be caused by the titaniumdioxide, which was added to the plastic as white pigment, catalysing destructive reactions under the influence of oxygen and light .
    Meanwhile antioxidative agents and peroxide scavengers are added to the plastic, which are believed to stop that problem. Accelarated-aging test make the industry consider a longevity of these foils of many decades.

    However, I wonder about the outcome or consideration of the aging tests of the first generation RC papers…
    AgX,

    Thanks for this info. I stopped using plastic material for prints (color and B&W) ever since some of my RC prints showed cracks ("brittleness") in the emulsion. I also never liked the way the edges of RC prints would swell, and that awful curling over time. Dry mounting presented other problems. Actually, the only color prints I've done in recent years are hand-tinted B&W fiber prints.

    Paul
    "Pictures are not incidental frills to a text; they are essences of our distinctive way of knowing." Stephen J. Gould

  7. #17

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    Quote Originally Posted by Simon R Galley View Post
    As always, for true archival permanence use fibre base, and correct storage disciplines.

    Simon ILFORD Photo / HARMAN technology Limited :
    Live righteously and healthily and you might be able to amend this to cover RC in another 50 years or so when the proof is there for all to see and announce it at the Ilford tour.

    The MD says: "I'll now hand you over to Simon who still organises and conducts these tours despite receiving his telegram from the Monarch yesterday. We only keep the poor old devil on out of cruelty. you know"

    pentaxuser

  8. #18

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    Quote Originally Posted by AgX View Post
    However, I wonder about the outcome or consideration of the aging tests of the first generation RC papers…
    Early generation polyethylene coated papers were not sold for serious long term archive uses and I doubt they did thorough accelerated testing in 1960s. Look at almost any synthetic plastic material from that time. Nothing is as good as today's.

    Also, plastic storage materials of that time were also inferior. We now know materials like PVC can damage the image, but PVC is cheap and easy to make so it's everywhere. Only after seeing the problem, are people reluctantly willing to accept more difficult and expensive solution. (People who can predict the problem are usually unpopular in front of uninformed consumers... and voters, I guess.)

  9. #19

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    Not me!

    Quote Originally Posted by cotdt View Post
    I just used Kodak RC paper made in the early 70's and they work perfectly still. i'm getting bright whites and deep blacks.
    My remnants of 1980's Kodak PC II are off white going straight to the fixer.

    As to longetivity, the topic you didn't ask for, current Kodak color RC papers say 100 years in a home display environment and 200 years in the dark.

    Not shabby.

  10. #20
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    Paul;

    Not shabby indeed. Back in the 60s, we were working on antioxidants for RC support. The main problem was that the polyethylene resin itself cracked due to aerial oxidation and UV radiation. Our efforts at EK were directed to both of these.

    Surprisingly, Titanox in the support was less of a problem than expected due to the fact that it absorbed UV and therefore lessened the contribution of the UV to cracking and crazing of the support. Of course, this differed between the two types of TiO2. One has more UV absorption than the other.

    PE

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