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Re: Dextrin as release from TT paper

2004-09-14 by Phil

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

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