10946Re: [PPLetterpress] Re: Bunting Base Question...
- Jul 23, 2009Hi Michelle,
The plate movement you describe would be extreme even for a weaker magnetic
base on a platen press. I don't have the bunting base, but with the patmag
base normal printing does not cause slippage on a 4x6 plate. Small plates
are more likely to move some, but a little masking tape on the edges is
always sufficient to maintain registration.
The only factor that makes sense to me would be use of a very tacky ink,
which can cause the ink rollers to lift and drag the plate. Heavy impression
on the platen does not have the rolling motion of a cylinder press.
I'd suggest considering ink differences and ink roller contact if Gerald's
visions of greasy solvents don't explain the problem.
Tom Parson/ Now It's Up To You
157 S Logan, Denver CO 80209
(303) 777-8951 home & printshop
(720) 480-5358 cellphone
In a message dated 7/22/2009 10:41:50 P.M. Mountain Daylight Time,
Bunting Magnetics guarantees its Cerface bases will never lose their
magnetism. What kind of solvents do you use to clean your press, bed, base,
plates? Likely any slippage is going to be a combination of extreme impression
and greasy solvents left on the base or plate. I've never experienced
travel with a Bunting base (and I do count on that) but I can imagine that under
certain circumstances anything can happen.
--- In PPLetterpress@yahoogroups.com, "autumnmichellefoote"
>bunting base on my old style C&P. It has happened on four separate print
> Dear List
> I am having some pretty severe plate slippage while printing with my 6x9
runs, using plates from two different plate orders (same vendor but orders
3 weeks apart), and on three different thicknesses of paper (all lettra.)
The first time it occurred I thought it was due to the heavier impression
on the 220lb lettra, but since it has occurred on the 110lb and the 32lb
that thought has gone out the window.
> Is it possible my base is loosing its magnetism? I am just at a lossand am not sure how to proceed as it is not efficient to re-setup every 5-10
impressions, yes that is correct noticeable difference in 10 impressions to
be precise 3/8 inch over the course of 60 impressions.
> The plate sizes vary from 3 x 2 inches to 4.5 x 6 inches.not had trouble with them.
> I have printed other plates processed in the same plate orders and have
> Thank you for your responses in advance...**************What's for dinner tonight? Find quick and easy dinner ideas
> ~michelle foote
for any occasion.
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