Re: gum question

[henk thijs <henk.thijs@hetnet.nl>]

Hi Judy,
What he told me was:
- Arches aquarelle 300 grs from the shelf, cutting pieces like 100 by  
60 cm (something like 40 x 25 inches);
- two time preshrinking half an hour in cold water, drying in between;
-mixing the gum solution, not with gum but with Mowiol (he doesn't  
like to use 'things becomes bad' w.o.w. arabic gum with some  
formaldehyde), using only vanDyke brown pigment (Yes, really, he  
doesn't care about quality of pigments, and obviously people buying  
his prints doesn't' bother either.)

I saw a demo and the results were really very good, but how it looks  
after some years, no idea.
What i learned about vanDyke brown was that it ended up as a dull  
gray after some time.

Cheers,
Henk



On 10 jun 2008, at 3:37, Judy Seigel wrote:

> On Mon, 9 Jun 2008, henk thijs wrote:
>
> > Hi Judy,
> > Preshrinking in 'not-hot-water' reminds of the discussion some  
> > time ago about the large gumprints made by Jean Janssis, belgian  
> > gum printer ( he can be found in musea all over the world); when i  
> > asked him about preshrink , he said he did not sized after two  
> > times of preshrinking in -cold- water , and he did not have any  
> > registering problems he said.
> > Any luck on the list with this method?; it did not work for me.
> > Henk>
> Henk, sometimes I'm not as smart as you think I am (thank you!)  
> That is, it isn't clear to me exactly what this fellow did.  Do you  
> mean he preshrank twice in cold water and didn't re-size? If so,  
> did he add a size *before* those soaks?  Were they two preshrinks  
> in a row, or was there a gum coat and development between them?
>
> In any event, I'm going to check the last couple of P-F's right  
> now, to see what details I recorded at the time...
>
> J.