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  #1  
Old 14th February 2012, 07:43 PM
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Default Curly RC paper

I haven't been printing on RC for a while, two or three years probably, but my recent Ilford RC prints show much more curl than some old RC prints also made on Ilford stock. Wet time was probably around 30 minutes, as always. Has anyone else noticed this phenomena?

p.s. Fotokemika paper was always curly, but prints made on either Ilford, MCP, Kodak RC were always completely flat...

I have attached a photo showing a few too curly 5x7 and 8x10 prints (for my tastes, at least):

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Old 14th February 2012, 07:55 PM
Mike O'Pray Mike O'Pray is offline
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If your process including drying is the same as before this looks serious. I haven't bought any Ilford paper recently but my old stock like yours shows no signs of curl. This only ever happened to me if I dried the paper with the heating element( intensive heat) switched on in my fan assisted drier and the curl disappeared in a matter of a minute or so if I finished the job by fan assisted air at ambient temp only.

I can't believe that Ilford has suddenly manufactured paper which is inherently as prone to curl as this.

Mike
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Old 14th February 2012, 08:05 PM
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Prints were dried at room temperature. I've notice the curls to be more severe in the winter months when the central heating is on and the air is dry. The prints were made late in August and they looked fine at the time. Still, older prints that are kept under the same conditions show no curl.
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Old 14th February 2012, 08:22 PM
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Reduce your washing time to 2mins max, I'm sure that will sort it.
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Old 14th February 2012, 08:37 PM
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Quote:
Originally Posted by Jon Butler View Post
Reduce your washing time to 2mins max, I'm sure that will sort it.
J.
This would be too time-consuming for my workflow.
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Old 14th February 2012, 09:00 PM
Mike O'Pray Mike O'Pray is offline
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As Jon has said 2 mins is enough for RC prints but my experience on a nightschool course was that students, including myself would have a wet time of 30 or more mins without curl problems. To give us max time on the enlargers we all left prints in the water pool until the end of the session so in excess of one hour wasn't unusual.

However our prints were then sent through an Ilford rapid dryer, again for speed at the end of the session- there used to be a queue for the dryer before the tutor threw us out of the college so he could get home

Mike
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Old 14th February 2012, 10:05 PM
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I use Ilford RC and in my experience, it dries pretty flat. I wash them for about 4 mins in water at approx 20 degrees C and then hang them off the shower rail to dry at room temperature.

Just a thought, is the water you are using perhaps too cold?
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Old 14th February 2012, 10:23 PM
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Quote:
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Just a thought, is the water you are using perhaps too cold?
No, I don't think it is. At least not in August.
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Old 15th February 2012, 03:33 AM
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Dry them face down.
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Old 15th February 2012, 07:59 AM
Dave miller Dave miller is offline
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I suspect that this may be a question for Ilford since no one else is experiencing the same problem.
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