gum question

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

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




On 9 jun 2008, at 4:24, Judy Seigel wrote:

> On Sun, 8 Jun 2008, Diana Bloomfield wrote:
>
> > ... though I did shrink and size the paper for that particular  
> > zone plate, I had done some others where I hadn't done any pre- 
> > shrinking, and I didn't seem to have trouble re-registering the  
> > negative. I guess that's only because the images were so blurry  
> > and indistinct, anyway, that the edges weren't clearly defined  
> > from the get-go.
>
> It occurs to me to wonder if .... since you're dancing around  
> minimum pre-shrink, minimum pre-stress, or "virginity," so to  
> speak, it might make a difference if the pre-shrink wasn't HOT.  A  
> while back I tested a looong preshrink in room temp water vs. the  
> HOT short preshrink that's the norm.
>
> I found that the long room-temp soak gave the same amount of shrink  
> that the short hot soak did... I don't remember the times, tho I  
> could probably find them in Post-Factory, but it occurs to me to  
> wonder if the room temp soak might "raise the nap" or rough up the  
> paper less than the hot.
>
> Of course you seem to be doing OK the way you're doing it, & no  
> need to fix it, if it ain't broke, but I mention the thought,  
> should a snag arise.
>
> J.