If you're not using someone else's tried and true recipe (exact same toner, diluent, and acetone), start at 2:1 (alcohol:acetone) and see whether the "runs" or "smears" or if it just transfers. If too much running, double the alcohol (now 4:1). If it transfers just right, you're all done. If 4:1 is too runny, go to 8:1, then 16:1, ... As soon as you have bracketed the ratios (say, between 4:1 and 8:1) divide that interval in half and try --- 6:1! Do another time or two and you will get what you need. You should be able to get perfect transfer within about five tests.
As different toners are made of different plastics, you will have to experiment with the chemicals but the experiments should all be very quick. The more water in the alcohol, the more crinkly you paper will get, btw, so try to get as close to 100% Isopropyl Alcohol or Denature Alcohol (methylated spirits) or straight Methanol as you can. (Ethanol will be very expensive unless you buy cheap unflavoured vodka, in which case you will have a lot of water, and that won't be good. 80 proof means 40% ethanol/60% water.)
The only purpose of the alcohol is to dilute the acetone so it doesn't totally wash away the toner. (One could use water, as acetone is totally miscible with water, but water will mess up the paper's dimensions and curl it all up.)
HTH,
Donald.
----- Original Message -----
> From: "'John Snyder' Kochcal@... [Homebrew_PCBs]" <Homebrew_PCBs@yahoogroups.com>
> To: "Homebrew PCBs" <Homebrew_PCBs@yahoogroups.com>
> Sent: Wednesday, June 8, 2016 1:18:55 PM
> Subject: RE: [Homebrew_PCBs] First attempt at toner transfer
>
> That's interesting,
>
>
> Did you use that with Acetone?
>
>
> Can you please give us the mixture Ratio
>
>
> and the type of printer / cartridge
>
>
> and if it was original equipment manufacture or not?
>
>
>
>
>
> John
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> I have had good results with 70% iso-alcohol from Walmart.
>
>
>
>
>
> The alcohol acts as a cleaner only, So, most types will serve this purpose.
>
>
>
>
>
> The actual "transfer" medium is the other ingredient.
>
>
>
>
>
> Good Luck
>
>
>
>
>
> Roland F. Harriston, P.D.
>
>
>
>
>
>
> <http://geo.yahoo.com/serv?s=97476590/grpId=4505361/grpspId=1705083291/msgId
> =34774/stime=1465398643>
>
>
>
>
>
>
>