Re: Cyanotype woes
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- Subject: Re: Cyanotype woes
- From: Keith Gerling <firstname.lastname@example.org>
- Date: Wed, 27 Feb 2008 11:04:26 -0600
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I'm one of those people that always insisted upon using CMYK.
On Wed, Feb 27, 2008 at 10:08 AM, Christina Z. Anderson
> Keith said:
> but I with red and yellow gum layers I
> >> was getting some of the deepest blacks I've ever seen in any process.
> PS this, above, along with sharpness of the layer, is the best reason to use
> a cyano underlayer--the resulting black in the print which eliminates the
> necessity to print a K layer as some suggest must happen. However, this
> also is the reason that some don't like the cyano underlayer--it is too
> dark. Hence I actually have switched from a 2:1 A:B ratio that I always
> used to use to a 1:1, so that I have essentially halved my FAC proportion to
> what it once was.
> 1) use a more
> >> concentrated solution of FAC
> 2) dump vinegar in the gum development
> >> water
> Try this--it'll tell you if alkalinity is the issue
> 3) finish the project in 6 years when the Cyanotype solutions
> >> have properly aged.
> Now a question for you and others: I have never aged my cyano--I'm too
> impatient, so I just mix n' go. I do this with VDB also, tho they say age
> it. Do you have data on this--is it a good thing?