Probleme Carbon With Indian Ink

Philippe Berger · May 10, 2012

Hi all the Carbon Printer,

I have a problem with my carbon printing.
I use gelatin and India ink

On my carbon, I see a small black dots as
if there were black specks and very small.

I do not know why and I can not find the solution even by filtering the India ink knowing that I use gelatin and still liquid India ink.

Someone on the forum have had this problem with India ink and you have a solution?

Thank you for your Help

Philippe
Sorry for my englis, it is translate by Google

holmburgers · May 10, 2012

Is it possible that it's undissolved sugar, or undissolved gelatin granules? I had a similar problem, more heating and stirring solved it.

Andrew O'Neill · May 11, 2012

I had a similar problem when I used an old bottle of Speedball ink that my school was going to dispose of. Switching to a new bottle solved it.

andrew

Philippe Berger · May 11, 2012

Thank you very much, all friends for your help

mdm · May 12, 2012

Philippe Berger said:
Thank you very much, all friends for your help

Isopropyl alcohol an cause the ink particles in glop to aglomerate into little grains. Use less IPA and mix it 50/50 with water, if you are using it. I sometimes use 50ml/liter of glop cut with water if I am in a hurry, but the bubbles will go away on their own if you wait long enough.

Philippe Berger · May 13, 2012

Thank you

Philippe Berger · May 13, 2012

I do not use isopropyl alcohol but I use liquid soap.
Do you think the problem may be liquid soap an cause the ink particles in glop to aglomerate into little grains.
Should we remove the liquid soap? Is it useful or not?

Thank you for your advice to all

banana_legs · May 13, 2012

Hi Philippe,

Many modern liquid soaps are not really soap, they are synthetic detergents, and they do not necessarily behave in the same way as true soap does. I use soap in my recipe, but I make my own soap and use soot as the pigment. As you are using Indian Ink, a soap-based glop is not needed; try using isopropyl alcohol instead to control the bubbles.

Best regards,

Evan

Philippe Berger · May 13, 2012

Is it possible for the glop not use isopropyl alcohol and no soap.
Soap is therefore essential if what product and brand can be used ?

Uncle Goose · May 13, 2012

Could one use Methanol or Ethanol instead of IPA?? I'm planning to try Carbon printing but getting IPA in Belgium is a P.I.T.A.

holmburgers · May 14, 2012

One could simply use PhotoFlo or other surfactant in place of IPA or soap. Is it a waterproof Indian ink? Those contain lacquers I believe.

mdm · May 14, 2012

I routinely make tissue with only gelatine, bore water, sugur and pigment. Keep it simple. The bubbles go away if your glop sits for some hours and a threaded coating rod seems to get rid of any that dont.

Philippe Berger · May 14, 2012

Thank you. Yes i think, only water, gelatin, sugar and india Ink, it is easy. I use also a coating rod.

banana_legs · May 14, 2012

Hi Philippe,

Yes try it with just a simple recipe. I only use soap as my soot pigments contain a fair amount of oils and tars still and without the soap, the carbon tissue is not good. I find passing the glop through a fine filter will often help remove most of the bubbles too.

Best regards,

Evan

Philippe Berger · May 15, 2012

Evan and all,

Thank you very much

Probleme Carbon With Indian Ink

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