From: Alan Bucknam (alan@notchcode.com)
Date: 01/10/03-12:56:18 PM Z
I'm not a professional paper-maker, but with years spent as a graphic
designer, and with paper representatives to count among my friends,
I've picked up a little info that might be helpful:
International Paper's little Pocket Pal, a staple of graphic designers'
and printers' bookshelves, has a great glossary on many paper terms.
Hot press, as I recall, involves finishing the paper by rolling it
through a series of rollers that have been heated. This produces a very
"herd", very smooth, surface. Cold press does the same thing, but with
unheated rollers. The main component of this finishing stage is the
pressure of the rollers; the heated component is what makes hot pressed
paper so much smoother....although cold press papers will still give
you a smooth finish.
The other terms: mold-made, web-made, hand-made, refer to the specific
process....Paper can be made in trays (molds), which has a wire screen
on the bottom and wooden sides. Pulp slurry is dumped into these molds;
the water passes through, and more is pressed out. More slurry is
added, more pressing is done...eventually you end up with paper. This
is how a majority of hand-made paper is made. You can do it yourself
with scraps of test strips....makes a good handmade book cover for your
next photo project! Web-made paper probably refers to most modern
paper-making processes, where the slurry is deposited onto a wire
screen that rolls through roller stations, getting more and more
compressed; this produces a more even sheet than a mold-made paper.
-Alan Bucknam
On Friday, January 10, 2003, at 11:39 AM, jeffbuck@swcp.com wrote:
> Carl: That's why I threw that question in. I mean, my "knowledge" in
> this
> area is limited to little tutorials in, like, the Arentz book and the
> New York
> Central catalog, that and a little word of mouth here and there. In
> any case,
> in following this thread this morning, I was having a hard time
> visualizing
> how hot- and cold-pressing figures in.... -jb
>
> Carl Weese <cweese@earthlink.net> said:
>
>>
>>>
>>
>>> Another point to throw into the inquiry here: How do these phenomena
> relate
>>> to hot- and cold-press? ... -jb
>>
>>
>> I'm starting to wonder how well-defined these terms are and how
>> universally
>> they apply--or get applied--to various kinds of paper: mold made, web
>> made,
>> hand made, etc. Think I'll look for a definitive text on paper next
>> trip to
>> the library.---Carl
>>
>
>
>
> --
>
>
>
>
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