Re: Types of Gum? Dyes instead of pigments?
oh. thanks for pointing that out. I wonder why that is. On 10/16/07, Judy Seigel <jseigel@panix.com> wrote:
On Tue, 16 Oct 2007, Keith Gerling wrote:
> As for dyes, the biggest problem I've found is that they stain. Meaning
> that if you put some on paper, it won't wash out.
Exactly. That's why they're called "dyes." They "dye" paper, but you don't
dye metal or paper so easily.
J.
>
> Keith
>
> www.gumphoto.com
>
> On 10/16/07, Don Sweet <don@sweetlegal.co.nz> wrote:
>>
>> This chap is experimenting to see whether the plant dyes used in
>> anthotypes
>> are reasonably permanent.
>> http://www.alternativephotography.com/articles/art098.html
>>
>> Don Sweet
>>
>> ----- Original Message -----
>> From: "Christina Z. Anderson" <zphoto@montana.net>
>> To: <
alt-photo-process-l@usask.ca>
>> Sent: Wednesday, October 17, 2007 2:40 AM
>> Subject: Re: Types of Gum? Dyes instead of pigments?
>>
>>
>>> Nope, and nope, Jacek.
>>>
>>> However, there are a number on this list doing Temperaprint, or using
>>> gloy...and, of course, gelatin as in carbon printing. Also albumen.
>>>
>>> I don't know why plant dyes wouldn't work if they could be suspended in
>> the
>>> gum, but you'd want to worry about archival colors. Could you test it
>> and
>>> tell us what happens?
>>> Chris
>>> ----- Original Message -----
>>> From: "Jacek" <gonsaj@iinet.net.au
>
>>> To: <alt-photo-process-l@usask.ca>
>>> Sent: Sunday, October 14, 2007 9:13 PM
>>> Subject: Types of Gum? Dyes instead of pigments?
>>>
>>>
>>>> Hi all,
>>>>
>>>> I was wondering if anyone used another form of a binder in Gum
>> Bichromate
>>>> printing. Most of the sources I've read have all used Gum Arabic,
>> though
>>>> there are many other that exist Gum tragacanth,Guar Gum, Locust Bean
>> Gum,
>>>> Tara Gum, Xanthan Gum etc.
>>>> Perhaps a different gum might hold more pigment or give another
>> aesthetic
>>>> result?
>>>>
>>>> Other than using watercolour pigments, has anyone tried using dyes? I
>>>> presume that a pigment is a insoluble powder, when using gum and
>> exposing
>>>> to light the pigment is trapped, where a dye used perhaps the gum
>> can't
>>>> trap the soluble liquid? Though is it possible to take a dye and make
>> it
>>>> into a pigment? Silly question perhaps? :) I had this idea to use
>> plant
>>>> dyes for my colours, wondering if its feasible or not?
>>>>
>>>> Cheers
>>>> Jacek
>>>>
>>>
>>
>>
>
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