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Autochrome Latex

Hi everybody,

I'm sorry for you Holmburgers....the plugin is a real player plugin.

I have to prepare now the damar gun that i will put in this rubber cement. I don't know when , but now i have to buy ethyle acetate and toluène to prepare the damar gum...i have to find the money ...it will cost me about 40 euros for 1 liter each. And i have to find a filter for the wax of the damar gum.
It miss me 3 things.

Yesterday i've made some tries just with this rubber cement on a glass, and i had put patatoe starch on it....the problem is that it i brush it immediatly and then the glue have made some heap.... not everywhere...It was wonderful to see in the microscope the places where patatoe starch were glued in a thin thickness.
I ask me a lot of question now...how long is the time before you can brush the patatoe starch...what must be the consistence of the glue...how long you have to wait before you can crush the glued patatoe starch....
It was the first try and it wasn't the final first varnish.

I hope you will found the good plug-in to see the video.

Shaz
 
I'm silly...i have read the book and it is write that you have to wait that the first varnish dry...and after you can put the patatoe starch.

And i ask you the question :

How the patatoe starch stay on the 1rst varnish ?

Because this varnish is sticky

And why this varnish is sticky ?

Thank you the damar gum !

The problem is that Mr Louis Lumière (he like to play with our nerves) write that you have to wait 6 months after having put the damar wax in the benzine ( i think that i will use toluène )
My first Autochome for this winter .

Shaz
 
Whoa... 6 months! I hope Louis is toying with us... or a perfectionist at worst.

So are the damar gum & rubber cement mixed? Is this mixture the "varnish"? And then the starches are dusted/brushed on to this?

Hmm.. I need that plugin. This is great though, keep up the progress. You joined APUG and within 1 month you are already doing doing doing. You deserve a medal!
 
Hello Holmburgers,

Yes, he was a perfectionnist (but you can read in the book that his banker said that he was a bad accountant )...you can read this page 351. 6 sentences before the end you can read : ......on laisse décanter 6 mois = we let settle during 6 months.

Yes damar gum and rubber cement are mixed. Yes it's the first varnish and yes after you put the patatoe starch on it.

Thank you for the medal ...but i just read the book
If i could only find the adapter for microscope i could put photos on the forum. It is wonderful to see this patatoe starch...i hope that i will have the possibility to colour the patatoe starch....if you find the plug-in you will see Mr B Lavédrine put the glass in the microscope and you will see the coloured patatoe starch. It's beautiful .

Shaz
 
Hello everybody,

Here is the latex ADS :

Dead Link Removed

As you can see, it's not the good latex...it must be white. .
At the end of the month i will put some photos of the "ethyle acetate", "toluène" and the "filter" for the first varnish....to be continued...i know it's long .

Shaz
 
Interesting! It looks "smoked" somehow.

It might be sufficiently white/clear in a thinner layer??

Anyways, that's cool!
 
Yes i think that in France, they are not good for the Latex .
As you say it looks smoked.
Yes Holmburgers, it must be completely white. Perhaps the same layer..i don't know for this. Now you know the bad Latex .
There is just one thing...if i strech it, it become white...when i will have the toluène...i will make a try... i am curious to see how it will be when it's dissolved.
I put a lot of hope in the "rubber cement".

Shaz
 
Just FYI, gelatin looks that color when it is a concentrated solid, but when coated it is clear.

PE
 
Hello PE,

Yes, that's why i'm gone try... . I hope that i'm wrong when i say that in France they are not good for the latex.
Can you translate FYI please, i don't understand.

A picture of ADS on internet :

http://www.ecvv.com/product/2374237.html

That's why i keep the faith.

To produce pale crepe, 0.5% sodium hydrogen sulfite is added before the coagulation......

Shaz
 
Last edited by a moderator:
FYI = For Your Information. There is a web site that explains these if you wish. Just google FYI.

Gelatin as 10% in water looks like amber.

PE
 
I will. I like alternative processes. So anyone crazy enough to try something out has my respect. If I had the space and money I would do more myself as well. But since I live in an appartment with small pets I don't wanna mess with toxic stuff. (well I do but my girlfriend doesn't want me to )
 
Hello Peter,

I understand what you say, it's the same thing for me...except that i don't have pets.
I have the chance to have the place where i work. I've found in the old laboratory a mixer.....perhaps i will use it for the latex....or for dying the patatoe starch.

Dying the patatoe starch will be the most delicate operation.

Shaz
 
Quick question that I'm asking here because I bet the answer is in the Lavedrine book. Do you know Shaz?

What is the largest autochrome plate that was supplied by the Lumieres? What is the largest known example?
 
Hello holmburgers,

You got the answer page 181. A big plate is prepared and is cut at the end.
The bis plate is 18cm x 84 cm. The Lumière cut this big plate and that give :
1 plate 13x18
2 plates 9x12
2 plates 6x9
1 plate 18x24
3 plates 6x13
4 plates 4.5x10.5

All in centimeters. The biggest is 18x24.

I hope it will help you.

Shaz
 
Hmmm, so about 7"x9.5".

Not bad, but I was hoping for something like 20"x24"!

I recall seeing a still life of fish in a basket by the Lumiere brothers, and it had the most incredible fidelity which led me to believe that it was larger than average.

Ok Shaz, you must exceed 18x24!
 
Yes, the beauty inspired by the patatoe....it's amazing.
I have found something for filter the dammar gum....i think that i will try to use.... i don't know how you say in english, it's for the women....they put this on their legs, it is made of nylon.....
It is already use for the art...to made "Médium damar" :

http://www.wetpaintart.com/Product_Archive/Paints%20&%20Mediums/About%20Mediums.htm

But i have to make a box that i can close, and put the damar inside the "you know this thing for the woman" .

Shaz
 
Actually we just call them "nylons" :joyful: Or, "hose". hahah, you didn't even realize how right you were!

and YES! c.d.ewen, thanks for posting that! Isn't it incredible? It's absolutely grainless (starchless)
 
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