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  1. #11
    photo8x10's Avatar
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    Hi Stefano,

    Describe exactly how you coated and the problems you encountered. Include the following if you can remember or wrote it down. 1) room temperature and humidity, 2) temperature of glop when you poured it on the paper, 3) how much glop you poured for a given print size, and 4) how did you spread the glop to the edges of the paper. Did you use a frame? And, did you remember to level the coating surface?


    The amount of watercolor pigment you used sounds about right to me.

    Sandy
    Hi Sandy
    I think my problem are somethings about temperature.
    I wrote it down your question, I usually take note of some parameters when I print with AZO or PT/PD.
    1)room Temperature 26°C and Humidity 55
    2)Temperature of glop 39°
    3) I used for my 5x7 print an amount of glop 20ml
    4)I used a glass rod I spread to the edges in a movement up/down slowly enough but I didn't fell solution very sticky. I think I use the rod in a bad way for this kind of paper preparation.
    I didn't use a frame, but It will be my next step to prepare.
    I leveled my coating surface.

    Thanks for your advices

    Best

    Stefano
    Digital is Slow..........Analog is ROCK!!!!

    Visit me at http://www.stefanogermi.com
    Visit My Portfolio in Apug

  2. #12

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    Quote Originally Posted by photo8x10
    Hi Sandy
    I think my problem are somethings about temperature.
    I wrote it down your question, I usually take note of some parameters when I print with AZO or PT/PD.
    1)room Temperature 26°C and Humidity 55
    2)Temperature of glop 39°
    3) I used for my 5x7 print an amount of glop 20ml
    4)I used a glass rod I spread to the edges in a movement up/down slowly enough but I didn't fell solution very sticky. I think I use the rod in a bad way for this kind of paper preparation.
    I didn't use a frame, but It will be my next step to prepare.
    I leveled my coating surface.

    Thanks for your advices

    Best

    Stefano
    Stefano,

    A glass rod is no good for coating carbon tissue, unless you use it in combination with a flexible magnetic sheet. If you just push it over the glop you will be left with very little coating height, and you need a lot for carbon, up to about 1mm or even more.

    The best approach is to use a flexible magnetic sheet with a frame cut out in it over a piece of galavanized sheet. Second best is to cut out some kind of frame in another material and position this over the paper. Just pour the warm glop into the center of the frame onto the paper and spread it evenly (and very quickly) to the edges of the paper. You must do this on a perfectly level surface, of course.

    Your temperature and humidity conditions sound ok, as does about 20ml for a 5X7" tissue.

    Sandy

  3. #13
    photo8x10's Avatar
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    Sandy,

    Thanks a lot, in my next coating try I'll change somethings after your advice.
    I haven't understand well what's a flexible magnetic sheet, I haven't seen.
    what material is built it? so Maybe I 'm able to find it here in Italy. I'm sure my next step I'm building my frame, but to spread the glop what do you use? I have a beautiful steel rod, I can use it to spread the glop or better use my fingers or other to spread and level the glop in the frame? if i remember the glop should level a bit by itself.

    It's a pity that your workshop are so far to me and now I can't come, maybe one day....I can do it.....

    Best

    Stefano
    Digital is Slow..........Analog is ROCK!!!!

    Visit me at http://www.stefanogermi.com
    Visit My Portfolio in Apug

  4. #14

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    Quote Originally Posted by photo8x10
    Sandy,

    Thanks a lot, in my next coating try I'll change somethings after your advice.
    I haven't understand well what's a flexible magnetic sheet, I haven't seen.
    what material is built it? so Maybe I 'm able to find it here in Italy. I'm sure my next step I'm building my frame, but to spread the glop what do you use? I have a beautiful steel rod, I can use it to spread the glop or better use my fingers or other to spread and level the glop in the frame? if i remember the glop should level a bit by itself.

    It's a pity that your workshop are so far to me and now I can't come, maybe one day....I can do it.....

    Best

    Stefano
    Stefano,

    The kind of flexible magnetic sheeting I use can be purchsed from McMaster Carr. It is a plastic sheet that has magnetic attraction. You cut a frame in the sheet of the size you want for your carbon tissue. Then, to use, you place a piece of final support (paper or plastic)bou on a piece of galvanized steel, then place the flexible magneitc frame over the paper. This creates a frame with a dam on every side which contains the glop while warm.

    You can buy this product from http://www.mcmaster.com/
    Do a search on flexible magnetic sign material. You want material with no adhesive and about 0.5mm to 1.0mm thick.

    You may find this at places where outdoor signs are made. This is one of the many uses of this material.

    Sandy

  5. #15
    photo8x10's Avatar
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    Quote Originally Posted by sanking
    Stefano,

    The kind of flexible magnetic sheeting I use can be purchsed from McMaster Carr. It is a plastic sheet that has magnetic attraction. You cut a frame in the sheet of the size you want for your carbon tissue. Then, to use, you place a piece of final support (paper or plastic)bou on a piece of galvanized steel, then place the flexible magneitc frame over the paper. This creates a frame with a dam on every side which contains the glop while warm.

    You can buy this product from http://www.mcmaster.com/
    Do a search on flexible magnetic sign material. You want material with no adhesive and about 0.5mm to 1.0mm thick.

    You may find this at places where outdoor signs are made. This is one of the many uses of this material.

    Sandy
    Hi Sandy,

    I surfed in your site, there are lots of things, I think I will find somethings of similar to mcmaster site, I add here the link, in English, because this seller is in Italy, so easier to me for buy.
    the link is:
    http://www.magnetta.com/enhtm/magneticfoils.htm
    Can you watch if is a similar to your material? (more and less)

    Thanks

    Stefano
    Digital is Slow..........Analog is ROCK!!!!

    Visit me at http://www.stefanogermi.com
    Visit My Portfolio in Apug

  6. #16

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    Quote Originally Posted by photo8x10
    Hi Sandy,

    I surfed in your site, there are lots of things, I think I will find somethings of similar to mcmaster site, I add here the link, in English, because this seller is in Italy, so easier to me for buy.
    the link is:
    http://www.magnetta.com/enhtm/magneticfoils.htm
    Can you watch if is a similar to your material? (more and less)

    Thanks

    Stefano

    Hi Stefano,

    I looked at the site. That looks like the right material.

    Sandy

  7. #17

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    I haven't tried carbon, but I hope to soon. Therefore, this question is truly blind. Hunt makes a line of water soluble block printing inks. Has anyone tried these as pigments for carbon or gum processes? Any hints?

  8. #18

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    Quote Originally Posted by nworth
    I haven't tried carbon, but I hope to soon. Therefore, this question is truly blind. Hunt makes a line of water soluble block printing inks. Has anyone tried these as pigments for carbon or gum processes? Any hints?

    I am not familar with the Hunt water soluble printing inks. Do you know if they are dyes or pigments?

    Sandy

  9. #19

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    I dug around and found I didn't have any of the Hunt Speedball water soluble block printing ink. It is available, however, and it's big advantage is price. I did turn up some of the Grumbacher water soluble block printing ink, however (who knows how old it is!). The labeling was not helpful. I smeared some on a slide and took a look under a microscope. I suspect it's dye based, since I couldn't see any pigment particles even at 400X. It is also very opaque.

  10. #20
    photo8x10's Avatar
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    Hi Sandy,

    After I found a magnetic sheets, I ordered them, I tried another time to make tissue with a plastic frame, and, terrific, I did.
    I was able to make four tissue sheets, two directlly in a paper support, two I made with a transfert process. And I made a almost good tissue. Sincerly I have to improve a lot but this first result are for me very important because I've understood some little things to make a good tissue. I'm sure that magnetic sheet will be a next step to improve my technic.
    The next week with this four tissue I'm going to try to make prints.

    Best

    Stefano
    Digital is Slow..........Analog is ROCK!!!!

    Visit me at http://www.stefanogermi.com
    Visit My Portfolio in Apug

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