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  1. #31

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    thanks Ron!
    so, the problem is something in between my two hypotheses I guess

    I did quite a lot of van dykes in the past years (on unsized paper), using also oxalate (Mike Ware version)-so I guess van dyke supposed to have the same issue with baryta paper? what do you think? but yes, the best is the empirical answer

  2. #32
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    I think that I may have some VDB here that worked, but that has been years ago. Not sure. The VDB worked fine.

    PE

  3. #33

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    As to pt/pd on Baryta paper, Craig Koshyk has a booklet on his procedures for doing just that (see http://www.craigkoshyk.ca/Books.html ). I've only tried a couple of times with marginal results; but hope to try again with some fresh Baryta.
    van Huyck Photo
    "Progress is only a direction, and it's often the wrong direction"

  4. #34

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    Just got off the phone with Sherry @ the Formulary, and I got pricing info:

    11x14 100 sheets : $88/box
    20x24 50 sheets : $145/box

    If anyone's interested and hasn't ordered yet, do it soon, like today (1/25/2012) or tomorrow AM (Thurs., 1/26/2012). It sounds like they are planning on finalizing the order very soon.

    --Greg

  5. #35

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    Quote Originally Posted by doughowk View Post
    As to pt/pd on Baryta paper, Craig Koshyk has a booklet on his procedures for doing just that (see http://www.craigkoshyk.ca/Books.html ). I've only tried a couple of times with marginal results; but hope to try again with some fresh Baryta.
    Thanks for the shout-out doughowk. My book is now available as an ebook from Blurb http://www.blurb.com/bookstore/detail/2943388. The regular paper book is still available too http://www.blurb.com/bookstore/detail/1819950

    The main issue with normal pt/pd solutions and the gelatin/baryta coating on fixed-out FB papers is that they don't get along very well. But if you make a few tweaks to the solution and the coating method, you can convince them kiss and make up. None of the tweaks are difficult or even very significant individually. But together, they make a huge difference. The main two are: A: adding some Tween 20 to your pt/pd solutions and B: using a puddle pusher and then a brush (or just a Richardson's brush) to really work the solutions into the paper.

    Tween acts like a sort of peace-maker between the solutions and the paper's coating and convinces them to play nice with each other. The puddle-pusher and foam brush (or just a magic Richardson's brush) step is also crucial and requires some elbow grease compared to the delicate tip-toe coating of cotton papers. Anywho, it is all explained in my booklet, with photos. I hope to post a video very soon as well.

    Edit: forgot to add. I've tried the uncoated paper from Formulary for my method. It did not work very well at all. The pd/pt solutions sort of soaked right into the paper or something..they did not get soaked into anything like the gelatin layer in fixed-out baryta paper. Whatever is left out of Formulary paper surface, it is something that my method seems to require.... is it a gelatin layer? Not sure.

  6. #36
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    Fixed out Photo paper used for Pt/Pd has the average structure below:

    /gelatin coat/emulsion coat/baryta in gelatin coat/FB paper.

    The paper in this discussion is as follows:

    /Garyta in gelatin/ FG paper.

    Both are hot press FB papers. Both are hardened to some extent.

    Hope this helps.

    PE

  7. #37

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    Similar to Craig, also had problems with straight Baryta paper for pt/pd - even with double my normal solution, the paper soaked it up without much effort. Then print had a grey vail after exposure, dev & wash.
    Plan on sizing some Kozo paper for pt/pd printing, so will try sizing the Baryta. Also plan on using the Baryta for Collodion POP.
    van Huyck Photo
    "Progress is only a direction, and it's often the wrong direction"

  8. #38
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    Mark Ostaerman uses this paper for Collodion POP and teaches it in his GEH class. Marvelous stuff. Talk to APUG member Peter Schrager who has made some superb prints using this paper.

    PE

  9. #39

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    Quote Originally Posted by Photo Engineer View Post
    Fixed out Photo paper used for Pt/Pd has the average structure below: /gelatin coat/emulsion coat/baryta in gelatin coat/FB paper. The paper in this discussion is as follows: /Garyta in gelatin/ FG paper. Both are hot press FB papers. Both are hardened to some extent. Hope this helps. PE
    Thanks PE!

    That leads me to two conclusions:

    1. With my method, the pt/pd solutions find a home in the top layer(s) of regular FB photo paper. But only after the silver that was included in those layers when the paper was made is fixed and washed away. So the ideal thing would be to use a paper that has the exact same structure of /gelatin coat/emulsion coat/baryta in gelatin coat/FB paper, but without the silver (or even without the entire emulsion coat?). If such a paper existed, you'd not have to waste time and money fixing and washing the silver out.

    2. Since the Formulary paper in this discussion does not have the top layer(s) of regular FB photo paper it doesn't offer a suitable home for the kind of pt/pd solutions used to coat cotton papers. A work-around might be coat the paper with a gelatin layer before applying the pt/pd solutions. Or you could try to work out some sort of emulsion, something like pt/pd + gelatin or some other substance in which the pt/pd could be suspended.

  10. #40

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    Just wanted to update this thread to mention that my order for the Formulary baryta arrived today. 1 50-pack of 20x24. Coated by Ilford/Harman.

    I don't see it on the Formulary site, but if anybody missed the group buy, it may be worth giving them a call to find out if they ordered extras.

    FYI...

    --Greg

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