Homebrew_PCBs

Hi,
Been trying to do some toner transfer with mixed success. Has anyone
noticed any difference in success depending on the time between copy
and ironing onto the board? i.e Is it better to do the copy / print and
then iron straight away, or can it be delayed?

I usually make the copy / print at work on coated paper and then do the
ironing home at night, or even the next night if I run out of time.
Have read through a lot of descriptions, but never found any detail on
this.

Thanks
Gerard

I would not think it's critical as long as you keep your print clean with no
excessive dust or other contamination. Once the toner cools (a few moments
after printing), I'd expect it to stay unchanged for a very, very long time.
I believe its ability to be remelted does not change over time either
(prolonged intensive UV exposure might affect that - I am not sure). The
paper will probably not change in the several hours time between printing
and re-melting. So, unless I am missing something obvious, I think time is
not a critical factor at all.

Vlad

On 3/14/06, gerardnz2001 <gerarda@...> wrote:
>
> Hi,
> Been trying to do some toner transfer with mixed success. Has anyone
> noticed any difference in success depending on the time between copy
> and ironing onto the board? i.e Is it better to do the copy / print and
> then iron straight away, or can it be delayed?
>
> I usually make the copy / print at work on coated paper and then do the
> ironing home at night, or even the next night if I run out of time.
> Have read through a lot of descriptions, but never found any detail on
> this.
>
> Thanks
> Gerard
>
>
>
>
>
>
>
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--
Vlad's shop
http://www.krupin.net/serendipity/index.php?/categories/2-metalworking


[Non-text portions of this message have been removed]

--- In Homebrew_PCBs@yahoogroups.com, "gerardnz2001" <gerarda@...>

>wrote:
>
> Hi,
> Been trying to do some toner transfer with mixed success. Has anyone
> noticed any difference in success depending on the time between copy
> and ironing onto the board? i.e Is it better to do the copy / print
>and
> then iron straight away, or can it be delayed?
>
> I usually make the copy / print at work on coated paper and then do
>the
> ironing home at night, or even the next night if I run out of time.
> Have read through a lot of descriptions, but never found any detail
> on
> this.
>
> Thanks
> Gerard
>

I have no idea about paper, since I just switched to using glossy
laser paper instead of Press'n'Peel blue, but I used to do all my
press'n'peel at one time, and then use it for several months
afterwards, and never noticed any difference with time. I used
press'n'peel that had been around for nearly half a year when I got my
laminator, and it transferred perfectly.

Gerard,

I think I mentioned that to someone not long ago, when I was sending
him some old prints to test with. Seems like in Gootee's tutorial or
somewhere, I saw it recommended to use "fresh" prints (or was it the
Fresh "Prince"?).

Seriously though, I keep a whole folder full of ones I've made on my
two different paper types, and use them to test transfers, if I'm
dealing with a unique surface or anything. I haven't really noticed
much change over time, and some of them are 'quite' old.

Take Care,

George

In my limitted experiences so far, I can't say the time between
printing and transferring is important.

However, I have found that touching the toner on the paper appears to
cause problems (I have oily skin). I also suspect that humidity might
have some effect on the transfer process, but have yet been able to
verify this.

I have found that the time from transfer to soaking in water is
important for a fast release. I am currently using a heavy gloss
paper. If I let the paper/pcb cool down after transfer, then soak it,
it takes a very long time for the paper to release from the PCB.

If, after transfer, I put everything in cool water right away, the
paper releases very quickly by comparison.

Chris

--- In Homebrew_PCBs@yahoogroups.com, "soffee83" <soffee83@...> wrote:
>
> Gerard,
>
> I think I mentioned that to someone not long ago, when I was sending
> him some old prints to test with. Seems like in Gootee's tutorial or
> somewhere, I saw it recommended to use "fresh" prints (or was it the
> Fresh "Prince"?).
>
> Seriously though, I keep a whole folder full of ones I've made on my
> two different paper types, and use them to test transfers, if I'm
> dealing with a unique surface or anything. I haven't really noticed
> much change over time, and some of them are 'quite' old.
>
> Take Care,
>
> George
>

On Wed, 15 Mar 2006 13:52:50 +0100, lcdpublishing
<lcdpublishing@...> wrote:

> I have found that the time from transfer to soaking in water is
>
> important for a fast release. I am currently using a heavy gloss
>
> paper. If I let the paper/pcb cool down after transfer, then soak it,
>
> it takes a very long time for the paper to release from the PCB.
>
>
> If, after transfer, I put everything in cool water right away, the
>
> paper releases very quickly by comparison.
>
>
> Chris

maybe because it is hot?
With heavy paper you can speed up the soaking if you scratch the back side
with a wire brush or coarse sandpaper after transfer. This opens up the
surface and the water can get in much faster. A drop of detergent helps
also (sb. suggested dishwasher detergent works even better).

I do not think time between printing and transfer is a problem (once the
toner is cold it doesn't change) but of course it must be kept clean and
free of dust.

ST

thanks everyone for the advice. I will have some more tries, as I
said I have been successful before but this time it didn't go as good.

Cheers all.

--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@...> wrote:

>
> On Wed, 15 Mar 2006 13:52:50 +0100, lcdpublishing
> <lcdpublishing@...> wrote:
>
> > I have found that the time from transfer to soaking in water is
> >
> > important for a fast release. I am currently using a heavy gloss
> >
> > paper. If I let the paper/pcb cool down after transfer, then

soak it,

> >
> > it takes a very long time for the paper to release from the PCB.
> >
> >
> > If, after transfer, I put everything in cool water right away, the
> >
> > paper releases very quickly by comparison.
> >
> >
> > Chris
>
>
> maybe because it is hot?
> With heavy paper you can speed up the soaking if you scratch the

back side

> with a wire brush or coarse sandpaper after transfer. This opens up

the

> surface and the water can get in much faster. A drop of detergent

helps

> also (sb. suggested dishwasher detergent works even better).
>
> I do not think time between printing and transfer is a problem

(once the

> toner is cold it doesn't change) but of course it must be kept

clean and

> free of dust.
>
> ST
>