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> Curly RC paper |
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#21
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RC: reduction of polyethylene layer / emulsion / supercoat in size on one side compared to other
FB: swelling and drying don't happen equally in all directions (pulp, gelatine, baryta) |
#22
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exactly, so if curl is on gelatin side it indicates that side has dried faster than the other side and in your case that means it stretches/pulls the paper fibres apart which then set with a curl in them. Dry face down which restricts airflow over gelatin and makes gelatin side dry more slowly which equals less curl. Weight of paper also reduces curl towards gelatin a little.
Can't harm to try it. Otherwise get a Kindermann RC30 (Trockener 30) if you can find one. I think they just stopped making them. |
#23
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Quote:
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#24
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There is also Nova: http://www.novadarkroom.com/product/...per_Dryer.html
but I don't do enough RC to justify it. |
#25
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It must be curly PE then
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#26
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Quote:
It's a pity you are so far away Miha. You occasionally see the Ilford heated roller dryer as a collect only secondhand item on the U.K. e-bay as it is quite big and very heavy. It does wet to dry in seconds only and is a bargain compared to the new price of the Nova model Mike |
#27
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#28
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Thanks for your input, but I prefer simple things, like newspaper sheets
I find things like dryers and 'archival' washers redundant. A good easel and a good stop clock is all I need. |
#29
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I think that unless you were printing RC at commercial levels then these dryers are simply not needed, indeed, that is what they were designed for, and if you are having curling issues then the heat would only make things worse. Personally I find RC paper dries quite fast enough hanging on a line it is dry in a matter of minutes.
Richard
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#30
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I am not sure we have got anywhere near getting to the problem's cause on a collective basis I am inclined towards Dave's suggestion that contact with Ilford is worthwhile. Ilford always seems keen to get to the bottom of any potential quality issues and this may be one Mike |
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