Re: Paper thickness, price, and the Stylus 740

["J. Arthur Davis" <jarthurdavis@earthlink.net>]

John Goerger wrote:
> 
> Bruce Roorda wrote:
> >
> > Bill Cameron's post raises a question I'll bet someone on the list
> > can answer:  Is there a reference on the web that clearly explains
> > paper thickness specifications?
> >
> > John Goerger's post is helpful, but as I understand it, not all
> > paper "weights" are based on the same size sheet, and it seems
> > that actual thickness could vary with the density of the paper for
> > two papers of the same weight.
> >
> > And what does "gsm" specify (e.g. "250gsm" in post from J. Arthur
> > Davis)?
> Media thickness is most commonly measured in mils or points, however the
> thickness has no bearing on weight. I very dense media like film that is
> 4mils thick would weigh much more than a 4mil thick piece of tissue
> paper.
> Your right about weights, there are  5 "weights" in pounds that are
> commonly used, as well as other less commom weights, with each one
> having a different basis weight.
> They are;
> BOND 17"x22"x500 sheets
> TEXT 25"x38"x500 sheets
> COVER 20"x26"x500 sheets
> BRISTOL 22.5"x28.5"x500 sheets
> INDEX 25.5"x30.5"x500 sheets
> Gsm is the way most people specify "grams per square meter" in emails.
> It is a little difficult if not impossible with some email programs to
> insert a super script 2, as in gmsÓ, I'm not even sure if that is the
> right way to type it, Its been so long since I've used it.
> Most Inkjet Coaters use the BOND measurment when specifying a weight in
> pounds. This is beacause, like us, most of them were or still are diazo
> coaters. Diazo (blueprint) paper uses the bond basis, so most of us
> stuck with the bond weight basis. IMHO gsm is far superior because it is
> constant, a gram is a gram is a gram and a meter is a meter is a meter.
> 
> John Goerger
> www.weber-valentine.com
> Toll Free 1-800-323-9642 USA ONLY
> 1-847-439-7111 Fax: 1-847-439-6887
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John:
Thanks for the explanation. It has been over 20 years since I had my own
printing business and these memories seem to fade away just like some
inks.

Jim Davis
www.visual-artists.com/paper
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