Lee on sat 3 mar 12
On Sat, Mar 3, 2012 at 7:02 PM, Donna Nicholas wr=
=3D
ote:
> Vince is absolutely correct.
> Hikidashi guro objects were pulled from the spy holes of nobori gama,
> and are stoneware.
>
> Apologies for the confusing post. Donna
>
You are not confusing anything Donna. the 2300*F mentioned is Seto Black
temp, not raku.
--=3D20
--
Lee Love in Minneapolis
http://mingeisota.blogspot.com/
"Ta tIr na n-=3DF3g ar chul an tI=3D97tIr dlainn trina ch=3DE9ile"=3D97tha=
t is, "T=3D
he land
of eternal youth is behind the house, a beautiful land fluent within
itself." -- John O'Donohue
Donna Nicholas on sat 3 mar 12
http://www.unm.edu/~ceschiat/hikidashi.htm
Check out this website. That's what Paul was referring to.
Donna Nicholas
Vince Pitelka on sat 3 mar 12
Donna Nicholas wrote:
Subject: Hikidashi guro (Japanese black raku) -
"http://www.unm.edu/~ceschiat/hikidashi.htm - Check out this website.
That's what Paul was referring to."
Donna -
Hikidashi guro or Setoguro, has nothing to do with raku. The only
connection to black raku is that both come out of kilns and both are black.
I think that Hank Murrow can confirm that there is a confusion in terms
here. The first part of the website mentioned above correctly refers to
Setoguro as the black Seto teabowls pulled out of a large wood-fired kiln a=
t
maximum temperature and allowed to cool in the open air, preserving the
black reduced color of the glaze. In the description on the website they
say they are adapting the process to a more modern American way of doing
this process, but from all I can see what they are doing is just a variatio=
n
on Western Raku, reducing the ware outside the kiln, which was a feature of
neither Setoguro or black raku. Black Seto teabowls have nothing to do wit=
h
the Raku process or tradition.
I am at my son's in Chapel Hill and he showed me a book with the following
description: "The black Raku kiln has a double structure in which a kiln of
round shape contains a saggar. As fuel, very hard oak charcoal is used to
fill the space between the saggar and the main structure from top to bottom=
.
The inside diameter is only large enough to fire one teabowl. Another
singular aspect of the black Raku kiln is that it has a bellows outside the
kiln which is worked to blow air into the kiln chamber from the side. The
operation helps to burn the charcoal more quickly so that the temperature
rises rapidly. According to the type of glaze either oxidation firing or
reduction firing is selected. When the glaze has melted, the piece gets
removed from the saggar while still glowing hot and I allowed to cool in th=
e
air instead of inside the kiln. In short, it is subjected to sudden heatin=
g
and cooling. The firing temperature of black Raku ware is high, around
1200-1250 C. However, because of the brief firing the clay does not get so
hard, which creates an effect of soft pottery. In other words, black Raku
ware is soft earthenware fired at a high temperature."
This is from "Raku: A Dynasty of Japanese Ceramists" with text translated
into both French and English, published by the Raku Museum in Paris and the
Japan Foundation, written by Seizo Hayashiya, Taka Akanuma, and Kichizaemon
XV Raku, the latter being current heir to the Raku family dynasty.
I hope this helps clarify things.
- Vince
Vince Pitelka
Appalachian Center for Craft
Tennessee Tech University
vpitelka@dtccom.net
http://iweb.tntech.edu/wpitelka/
Donna Nicholas on sat 3 mar 12
Vince is absolutely correct.
Hikidashi guro objects were pulled from the spy holes of nobori gama,
and are stoneware.
Apologies for the confusing post. Donna
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