Re: PVA for gum printing

From: David & Jan Harris ^lt;david.j.harris2@ntlworld.com>
Date: 06/19/04-08:45:04 AM Z
Message-id: <000801c4560c$020c66e0$b7be6951@sotera>

Yes, it is still manufactured by Henkel.
----- Original Message -----
From: "jacques verschuren" <info@jacquesverschuren.nl>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Thursday, June 17, 2004 9:26 PM
Subject: Re: PVA for gum printing

>
> Gloy used to be manufactured by Henkel some years ago. I don't know
whether
> that is still the case, but my supplies still last.
>
> Jacques Verschuren
> www.jacquesverschuren.nl
>
> --------------------------------------------------------------------------

--
> -------------------------------------
> 12 years of photography in www.jacquesverschuren.nl/milestone.htm
>
>
> ----- Original Message ----- 
> From: "Katharine Thayer" <kthayer@pacifier.com>
> To: <alt-photo-process-l@skyway.usask.ca>
> Sent: Thursday, June 17, 2004 12:19 PM
> Subject: PVA for gum printing
>
>
> > I've got a physical chemist interested in working out the chemistry of
> > dichromated gum, but because gum is so complicated and variable and the
> > structure isn't completely worked out, and the structure of PVA is
> > simple, he wants to start with PVA and see if he can understand what
> > happens there first, before considering gum.
> >
> > I told him that I had printed with gloy, which I believe to be mostly
> > PVA, and it seemed to work very similarly to gum. But we need to use a
> > pure PVA of course for these experiments, so  I need to find a grade and
> > molecular weight of PVA that would be similar to that used in gloy. I
> > don't know where one would find that out about the PVA in gloy, can
> > anyone give me a clue?  Or suggest a grade and molecular weight that
> > might be close?
> >
> > I googled "gloy" and found some places to buy gloy in UK, but not a
> > manufacturer. But (gloy printers should appreciate this) I did find a
> > composer who composed "Ode to Gloy" a parody of Beethoven's 9th, "in
> > honor of the glue."
> > Katharine
> >
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>
Received on Sun Jun 20 11:59:08 2004

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