Von: Müller-Radloff, Christine - SES
Gesendet: Mittwoch, 10. Oktober 2012 14:36
An: 'Textile Conservators'
Betreff: AW: Heat-treatment
Dear all,
in the Ethnographic Museums in Leipzig and Dresden in Germany we use chambers in those we evacuate the oxygen and so the N-concentration will grow up for 3 weeks. In Leipzig we can also heat the chamber. It is like the Thermolignum but from a firm in South Tirol.
Sincerely
Christine Müller-Radloff
Dipl.Ing./Textilrestauratorin
Staatliche Kunstsammlungen Dresden
Staatliche Ethnographische Sammlungen Sachsen
Museum für Völkerkunde Dresden
Königsbrücker Landstr. 159 / 01109 Dresden
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Von: Textile Conservators [mailto:[log in to unmask]] Im Auftrag von Karin von Lerber
Gesendet: Mittwoch, 10. Oktober 2012 14:22
An: [log in to unmask]<mailto:[log in to unmask]>
Betreff: Re: Heat-treatment
Dear Linsey,
the treatmet proposed to you sounds very much like the Thermolignum ® treatment. There have been quite a lot of research and publications on all kinds of types of objects (including textiles) and even on DNA, all of them concluding that this treatment has no negative effect if humidity is controlled. You find the publications on the thermolignum website:
http://www.thermolignum.com/home/ (in the right hand barr).
Otherwise, I agree with the comment made by various people: controlling your environment is essential.
Sincerely,
Karin.
über 20 Jahre Atelier für Textilkonservierung – 15 Jahre Ideen für Museen
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Am 10.10.2012 um 13:57 schrieb Margunn Veseth:
I agree. You should try to control the environment.
In our museum we use heat or freezing as pest traetment.
We have our own heat chamber that we bought from a Swiss/ English company. IT is quick and easy. Takes approximatly 12 hours from start to the end. And as David Walker said "The heat may cause some physical and chemical changes in the viscose/rayon, but it will probably not be significant".
Margunn Veseth
Conservator,
Museum of Cultural History,
University of Oslo
Oslo
Tlf./faks: [+47 22 85 95 10 / 22 85 95 09]
www.khm.uio.no<http://www.khm.uio.no>
On 09.10.2012 18:14, Constance wrote:
I concur with Mary. The first thing to do is to control the humidity in
the rooms, since the psocids feed on mold. Otherwise, the pests will
continue to exist - not only in the drapes - wherever there is a source
of nourishment. External walls are difficult in these situations. It is
unlikely that the fabric will be harmed by the pests. Anoxia is the
preferred treatment. The heat may cause some physical and chemical
changes in the viscose/rayon, but it will probably not be significant.
David Walker
Walker Textile Conservation
www.talismanrestoration.com<http://www.talismanrestoration.com> <http://www.talismanrestoration.com>
On Oct 9, 2012, at 9:29 AM, Scottish Conservation Studio wrote:
Hi there,
Lynsey Haworth from Historic Scotland would appreciate help with the
following: 'At one of our properties we have several sets of drapes on
walls. They are made from viscose chenille, gold thread and
cotton.There had been lots of rumours about there being a pest problem
within the drapes, and a pest control company did some investigation
and found there to be booklice in the drapes, believed to be caused by
the damp environment.The proposed treatment that they have suggested
is a heat treatment, where the drapes are heatedin a podto between 54
and 60 degrees Celsius for approximately one hour, which will kill the
booklice and any microscopic mould they may be living off of.The
humidity is monitored during this process and the temperature can be
adjusted to ensure that the drapes are not put at risk.
Could anyone tell me if they have used a similar method for treating a
pest problem before? How safe is it to textiles? I should note that
the drapes are not historical. They are only about 13 years old, but
were commissioned especially so are quite expensive and we do not want
to risk them being damaged.If anyone can offer any adviceor insight
into this proposed method of treatment I would be very grateful.
*Lynsey Haworth*| Regional Collections Manager (Central)
__________________________________________________
Historic Scotland | Alba Aosmhor
Longmore House, Salisbury Place, Edinburgh, EH9 1SH
t: 0131 668 8641m| 07794 045801
e:lynsey.haworth @scotland.gsi.gov.uk
<mailto:[log in to unmask]>
www.historic-scotland.gov.uk<http://www.historic-scotland.gov.uk>' <http://www.historic-scotland.gov.uk/>
If you can help Lynsey, please send your reply directly to her e-mail
address.
Many thanks,
Tuula Pardoe
Accredited Conservator of Costume and Textiles
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South Queensferry
West Lothian
EH30 9SL
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