actually, I was asking if your dad might know of a non-water based
solvent for dextrine in the hope that the solvent would not wrinkle
the paper. I wasn't asking if he could run off a batch of paper for
us.
I doubt that pulsar pays even $0.10 per sheet, maybe the solution is
to find their source.
--- In Homebrew_PCBs@yahoogroups.com, "mikezcnc" <eemikez@c...> wrote:
> Phil,
>
> He cannot, that's the point. They use water based dextrines and
> machine weaving the paper are the size of a small city block. The
> pressure on the paper tape 20+ feet wode and miles long keeps it
> straight until it makes its routs thru different drums. Temp and
> humidity control is the key and such papers being for special
purpose
> are not cheap either. The only dextrine based paper that works is
> from pulsar at $1 a sheet, then I tried couple other special
purpose
> papers for transfer of T-shirt images-expensive. the cheapest paper
> for that worked for me in H200 is that Staples paper we talked
> already about. I mean, it costs 50c for the lucky ones in US.
> I've been baking bread since 1989 and it is after 13 years when I
> started getting a grip on baking. What can be simpler: water,
flower
> and yeast. There are million books on the subject and 99% are not
> worth paper they are printed on. I'll stick to H200 with Staples
for
> now (0.032"_.
>
> Mike
>
>
> -- In Homebrew_PCBs@yahoogroups.com, "Phil" <phil1960us@y...> wrote:
> > Maybe your dad could help on this - is there a non-water based
> > solvent for dextrine? It seems like water was the problem.
> >
> > --- In Homebrew_PCBs@yahoogroups.com, "mikezcnc" <eemikez@c...>
> wrote:
> > > Grant,
> > >
> > > He thought it was crazy to attempt making a dextrine coated
paper
> > at
> > > home. I tried it several times and agree with that: the paper
is
> > all
> > > shrunk up and there is now way for a hobbyst to make it flat
and
> > > straight. Pulling out a home made dextrine paper out of a laser
> > > printer is a nightmare I will never forget. I admit that idea
> > behind
> > > it is simple but the problem is to dry the coated paper so it
> looks
> > > like paper you and me know. Mike
> > >
> > > --- In Homebrew_PCBs@yahoogroups.com, "grantfair2001"
> > > <grant.fair@s...> wrote:
> > > > Mike - I'm not sure why your dad thought you were crazy,
after
> all
> > > > someone had already made the paper with dextrin. Did he say
why
> he
> > > > thought you would not succeed?
> > > >
> > > > I didn't realize you had already had a go at this and your
> > > experience
> > > > is good to know about. What kind of Dextrin did you use?
> > > >
> > > > Grant
> > > >
> > > > --- In Homebrew_PCBs@yahoogroups.com, "mikezcnc"
<eemikez@c...>
> > > wrote:
> > > > > Grant,
> > > > >
> > > > > My father is a chemical engineer who spent 40 years in
paper
> > > > > industry. When I found out 6 moths ago that Pulsar used
> dextrin
> > > > > coated paper I knew I would have a product. I spent time
and
> > > money
> > > > > making such paper trying all kinds of tricks (my father
told
> me
> > > it
> > > > > was insane) and came to conclusion that it cannot be made
at
> > home
> > > but
> > > > > it is a great way to quickly learn how clean the laser
> printer.
> > > At
> > > > > that time I decided to forget about the TT and concentrated
> on
> > UV
> > > > > exposure with excellent results, coating my own boards.
Then
> > came
> > > > > along the Staples paper and the laminator and we all know
the
> > > rest of
> > > > > it- I became a TT convert.
> > > > >
> > > > > John Kleinbauer from www.kleinbauer.com, a small CNC
machine
> > > site,
> > > > > used a fantastic comparison to baking. I like that example
> > > because I
> > > > > happen to have baked breads for more than 10 years.
Yesterday
> I
> > > baked
> > > > > the world's worst bread! I must have been tired.
> > > > >
> > > > > As far as regular TT goes, the one that requires ironing,
> there
> > > are
> > > > > obviously two variables difficult to control (that come to
> > mind):
> > > > > temperature and pressure (we know that). But keeping
pressure
> > at
> > > the
> > > > > max allows us to vary only temperature to achieve good
> results.
> > > > > I had 70% success rate when ironing and I have 100% using a
> > > > > laminator. Yes, I live in US and yes I took a second
mortgage
> > to
> > > buy
> > > > > the laminator at Staples... Mike