Regina Hoffmann-de Keijzer, Maarten Van Bommel, Ineke Joosten	Dyestuff & element analysis on textiles from the prehistoric salt mine of Hallstatt
Zvi Koren	The historico-chemical analysis of a very Royal Vase
Laura Rodriguez, Ana Cabrera, Andrés Sanchez	The collection of Coptic textiles in the Museo National de Artes Decorativas: the results of the dye analysis and Carbon 14 testing
Valery Golikov, Zoe Zharikova	A study of model orcein lacks
Aki Arponen	Dyeing lichens in Sweden during the age of utilisation
Paul Woudhuysen	An overview of the Kunstbüchlein 1500-1600
Renate Woudhuysen	The Engelberg Codex 431- Das Farbbüechlin
Maarten Van Bommel, J.H. Hofenk de Graaff	Master dyers to the court of Sicily
Jürg Rageth, Ina Vanden Berghe, Marie-Christine Maquoi, Jan Wouters	Insect dyes in weavings of the Turkmen of Central Asia, 1450 - 1990. Part II
R.V. Jashenko, D. Cardon, W. Nowik	Porphyrophora insects, a long history. Part I: from the field to the laboratory
Cheryl Porter	Arminean cochineal: a study of the methods of collection and uses, tradition and the future
I. Karapanagiotis, S. Sotiropoulo, E. Chryssikopoulou, P. Magiatis , K.S. Andrikopoulos, Y.Chryssoulakis	Investigation of Tyrian purple occurring in historical wall paintings of Thera
J. Orska-Gawrys, B. Szostek,I. Surowiec,W. Liszewska, H.Hryszko, M.Trojanowicz	Chromatographic investigations of dyes in Polish textiles from 15th &16th centuries.
Irina Petroviciu, Ina Vanden Berghe, J. Wouters, Ileana Cretu	Dye analysis of some 15th century byzantine embroideries
Giancarlo Lanterna	A correlation between an old recipe (10th) and the analytes found in a decoration of Giotto’s crucifix of Santa Maria Novella
C. Clementi, F.R. Cibin, A. Romani, G. Favaro	A spectrophotometric and fluorimetric study of Red Madder in solution and dyed wool
François Delamare, Bernard Monasse	Predicting the reactivity of alizarin complexes upon cellulose in aqueous environment
André Verhecken	The history of alum, production in Belgium
Ran Boytner, Key Antùnez de Mayolo	Indigenous dye standards for ancient Andean textiles: the Antunez de Mayolo collection revisited
Mathijs de Keijzer, Maarten Van Bommel	The history and analysis of fluorescein, eosine, erythrosine and some of their derivatives
Daniela Cristea, Gerard Vilarem	Maya blue, a source of inspiration for new nanostructured natural pigments
Maria Joao Melo, J. Seixas de Melo, A.P. Moura	The importance of being " Leuco "
Gundula Voss, Melanie Schnabel	Analysis of historic samples of non-symmetric thioindigoïd dyes
Vincent Daniels	The factors of indigo fading according to literature
S.K. Nicholson, P John, P. Lawson, M. Collins	New insights into the ecology and functioning of the medieval woad vat
Mark Clarke	Iron & tannin in early purple dyes
Brian H. Davies	The dyeing of Welsh wool
Riikka Räisänen	Past and future of the fungal natural dyes in the Nordic countries

Posters at DHA23

Byung Chan Lee	The Color Yellow - One of the five basic colors of the Chosun Dynasty.
Irving Ziderman	Vating purple dyes: reappraisal of reduction processes published.
.Irving Ziderman.	The change in colour on heating monobromo-indigotin.
A. Wallert, M. van Bommel.	Chlothlet colours: Chrozophora tinctoria Juss.?.
Alessia Andreotti, Maria P. Colombini, Giancarlo Lanterna.	A chromatographic study on red wood dyes.
Bernard Verhille.	Woad in Picardy (XII-XV centuries).
Michael Hovaneissian, Paul Archier, Catherine Viellescazes.	High-performance liquid chromatographic study of indigoid and coccid dyes: application to samples from the pharmacy of an ancient hospital.
Naceur Ayed, Rim Marzouki.	Nabeul embroidery by natural dyed cotton.
Billy Ward and Chris Cooksey	Contemporary dyeing with historic natural materials in Mexico
Beatriz Devia, G. Llabres, J. Wouters, I. Vanden Berghe, J.N. Wauters, L. Angenot, M. Tits.	Analysis of the dyes present in coloured cotton of Precolumbian origin (Gossypium barbadense, G. hirsutum),

Chris Cooksey and Alan Dronsfield	Peter Griess - a critical evaluation of his contribution to azo dye chemistry
Karen Diadick-Casselman and Karen Urbanek	Archil and cudbear combinations in 18th and 19th century dye manuals
Cathy Mathias	The colour of colonialism in 17th century Newfoundland, Canada
Brian H. Davies	William Savage (1770-1843) - a pioneer of colour printing
Katarzyna Schmidt-Przewozna	Natural dyestuffs used in Polish folk art
Octaviana Marincas	Historic Romanian dyeing techniques and technologies
Lee Byung Chan	The grey colour in Buddhist monks' informal clothing - ­Natural dyes as a folklore
Christine Macheboeuf	Transport and conditioning of the purple dye: the contribution of the experimental archaeology
Betty Goldberg	Japanese blue from the prehistoric time to now
Anna Jolly, Ina Vanden Berghe and Jan Wouters	Europe or China? Dyestuff-analyses as a tool for attributions
Jürg Rageth, Ina Vanden Berghe, Jan Wouters and Georges Bonani	Insect dyes in weavings of the Turkmen of Central Asia, 1450-1900. Identification by HPLC dye analysis and assignment to specific periods of time by AMS radiocarbon dating
Zvi C. Koren	The historico-chemical analysis of a Very Royal Vase
Carmen Alfaro	The control of dyes production in the late Roman Empire: the baphium of Baleares
Irina Petroviciu, Jan Wouters, Ina Vanden Berghe and Ileana Cretu	Dyes in some 16th and 17th centuries textiles from the Romanian Medieval Art Gallery
Mark Clarke, Ina Vanden Berghe, Jan Wouters, Peggy Frederickx, Ludwien Speleeres and Peter Vandenabeele	Comparative studies of 17th-century Netherlandish red lakes in the Oranjezaal, Palace Huis ten Bosch
Ige Verslype, Arie Wallert and Jan Wouters	Organic yellows in seventeenth century paintings
Masanori Sato and Yoshiko Sasaki	Spectroscopic identification of ancient Japanese dyes
Howell G. M. Edwards	Dragon's blood: a potential sourcing database from nondestructive Raman spectroscopic analysis
Robert Fuchs	Non-destructive FTIR analysis of dyestuffs and pigments in medieval book paintings
Alessia Andreotti, Ilartia Bonaduce, Maria Perla Colombini and Erika Rabechini	The characterization of red-violet organic dyes in ancient samples
Raymond White, Jo Kirby and Catherine L. Higgitt	A lake... splendid in its colour of grana: the application of electrospray interface-mass spectrometry (ESI-MS) to kermes lakes
Izabella Surowiec, Witold Nowik and Marek Trojanowicz	Optimization of solvent extraction of dyes for their identification in archaeological textiles
Beatriz Devia and Jan Wouters	Arrabidaea chica: 3-deoxyanthocyanidins and their degradation products, found in Colombian archaeological textiles of the 10th to the 16th centuries
Alison N. Hulme, Hamish McNab, David A. Peggie and Anita Quye	Chemical characterisation of sawwort (Serratula tinctoria) and dyers' chamomile (Anthemis tinctoria) by PDA HPLC and LC ESI MS
Jan Wouters, Marie-Christine Maquoi and Ina Vanden Berghe	The dye of Rubia peregrina, II: top-dyeing experiments with indigo
Roy S. Sinclair	Mapping colour changes in dyes and pigments due to light fading and ageing
I. Irving Ziderman, Yoshiko Sasaki, Masanori Sato and Ken Sasaki	Colour change on heating 6-bromoindigotin: key to understanding purple dyeing with banded dye-murex
Rolf Haubrichs	Mollusc purple: a worldwide famous colour
Gundula Voss	Analysis and reactions of old samples of thioindigoid dyes

Philip John	Indigo reducing bacteria from the medieval woad vat : their interaction with indigo revealed
Anthony Pinto	Woad production in Catalonia and Roussillon at the end of the Middle Ages
Chris Cooksey and Alan Dronsfield	Edward Schunck : the pioneer dye chemist
Valery Golikov and Zoe Zharikova	A study of model carminic lacks on the basis of cochineal, protein collagen and mordant salts
B. Monasse and F. Delamare	Role of the nature of the metallic cations of the mordant on the colour of alizarin. An approach by semi-empirical quantic mechanics
Bryan H. Davies	Logwood under the microscope
Masanori Sato	Spectroscopic sensitivity of natural dyestuffs used for cultural properties
Katarzyna Schmidt-Przewozna	Natural dyestuff applied in Polish workshops in XVIIth-XVIIIth century
Liana Listunova	Natural dyes in the textiles of the northern coast of Black Sea from the palaeolithic times down to the modern epoch
Maria Joao Seixas de Melo	Missal blue : anthocyanins in Nature and Art
Cheryl Porter	Purple in manuscripts
Jo Kirby	Observations on some aspects of medieval and renaissance lake pigment technology
Maarten van Bommel, Muriel Geldof and Ella Hendriks	Microscopic examination and HPLC-PDA-Fluorescence analysis of organic red pigments in paintings by Van Gogh in the period 1885-1888
Arie Wallert and Maarten van Bommel	Sanguis draconis, dragon's blood
Irving Ziderman	The biblical dye tekhelet and its use in religious textiles
Zvi Koren	New analytical insights into purple dyeings
Mady Elias	Non-destructive identification of dyes in works of art by reflectance spectroscopy: the case of purple
Emily Murray and Karen Diadick Casselman	Shellfish purple in Ireland and Britain: a re-appraisal
George Taylor	Charles Stothard and the Bayeux tapestry
Ulderico Santamaria	Study of dyes of Raphael’s tapestry at the Vatican Museum
Anita Quye and Jan Wouters	Monitoring of damage in historic tapestries: a newly initiated EU project
Ran Boytner	Traditional discontinuity : synthetic perspective of recent ethnographic and archaeological research of Andean dyeing technologies
Anita Quye and Ester Ferreira	An analytical study of native Scottish flavonoid dye plants
Ghuang-Hui Dai	Traditional dyes of China
Barbara Bigler	Traditional dyes of Bhutan
Regina Hofmann-de Keijzer and Maarten R. van Bommel	Dye analyses on two textile fragments of Late Antiquity
Marek Trojanowicz	Investigation of dyes in Coptic textiles using HPLC with UV/VIS diode array, fluorescent and MS detections
Jan Wouters, Ghislaine Richard, René Breniaux, Dominique Cardon	Dye analyses of selected textiles from three Roman sites on the Caravan roads in the Eastern Desert of Egypt
Jenny Balfour-Paul	Impressions of the Colour Congress in Ames (Iowa), May 2002
Jenny Balfour-Paul	Current research into the international traffic of dyes by the East India Company

Jenny Balfour-Paul	Chasing Indigo into the New Millennium
Gundula Voss	Soluble Indigotins
Robert Withnall, Ludwig Naegel, Dharmesh Patel, Chris Cooksey	Chemical Studies of Purpura Patula
Hero Granger-Taylor	The Disappearance of Real Purple in the Early Middle Ages
Alan Dronsfield and Chris Cooksey	Some Pre-Perkin Synthetic Routes to Purple
Manasori Sato	Blue and Purple Dyestuffs used for Ancient Textiles
Anita Quye, Hugh Cheape, John Burnett	Dyes in the Scottish Tartan Trade of the late 18th/early 19th Century
Jan Wouters and Irina Petroviscou	Dyes in Romanian Religious Embroideries
Vincent Daniels	Recent Developments in the Chemistry of Black Inks and Dyes Containing Iron
Brian Davies	Did the Medieval Illuminator know how to prevent Oxidative Damage ?
Yasuko Noda, Masahiro Kasamatu & Susumu Shimoyama	The Reproduction of a Traditional Votive Figure based on the Non-Destructive Analysis of Colourants
Peggy Fredrickx	Application of Transmission Electron Microscopy (TEM) in the Research of Inorganic Colourants in Medieval Stained Glass Windows and Parchment illustrations.
Dominique Cardon and Claude Andary	The Names of Madder in Historical Literature in Relationship with the Root Contents
Christoph Krekel	Recipes in Apothecam - Pharmacy Price Lists as a new type of Documentary Source
Zvi Koren	Where have all the Safflower Reds Gone ? Part 2
Jo Kirby	Nathaniel Bacon's 'pinke'
Olga Lantratova	Organic Chromatic Materials in 17th Century Material Portrait of the Russian Patriarch Nikon of the Moscow State History Museum
Valery Golikov	The Technology of Colour Protein Lacquers
Elena Phipps	Colours in the Andes: Royal Inka Garments and Colonial Documents of the 16th - 17th Century Peru
Harald Böhmer	New Dye Research on Palmyra Textiles
John Fields	Dye Analysis of Khirbat Qazone Textiles at the British Museum

R. Te Kanawa et al.  (New Zealand)	Traditional Maori dyes
C. Andary et al.  (France)	Additional chemical screening on Maori dye plants
D. O'Connor & A. Richards  (England)	Recognising the right mud. Studies in West China and West Surrey
M. Sato  (Japan)	Identification of natural dyestuffs used for ancient cultural properties in Japan
S. Shimoyama & Y. Noda  (Japan)	Non-destructive analysis of Ukiyo-e - traditional Japanese woodblock prints using a portable X-ray fluorescence spectrometer
J. Wouters et al.  (Belgium)	A microdrilling method for the study of multi-layered structures of paint
J. Balfour- Paul  (England)	Welcome back - woad
G. Carr  (England)	Woad - tattooing and the archaeology of rebellion
P. John  (England)	The scientific basis of medieval indigo production from woad: latest findings
C. Cooksey & A. Dronsfield  (England)	Adolf von Baeyer and the indigo molecule
G. Voss  (Germany)	NMR-spectroscopy of leuco-indigotins -preparation of deuterated indigotins
E. Ferreira  (Scotland)	Photodegradation products from flavonols: markers for identification of natural yellow dyes in ancient textiles
T. Koussoulou  (Greece)	Photostabilization of naturally dyed historic silks
V. Golikov  (Russia)	The classification and techniques of organic chromatic materials based on natural dyes in painting and applied arts
V. Golikov  (Russia)	The application of organic chromatic materials in Russian icons of the XVth to the XVIIth centuries
I. Pefrovisciu  (Romania)	Analysis of natural dyes from Romanian 19th -20th centuries ethnographical textiles by DAD-HPLC
M. Vest & J Wouters  (Denmark; Belgium)	Dyes and pigments on 8th to 18th centuries alum-tawed bookbinding leather
G. Taylor (England)	Botanical alternatives to alum
K. Diadick  (Canada)	A lexicon of northern European lichen pigments named according to their botanical ingredients
M. Dallon  (France)	Presentation of the textile garden of Bassignac-France
J. Bastlaens et al.  (Belgium)	Dyeplants in the centre of medieval Gent. Archaeological evidence for a well known international cloth industry

Held at the National Maritime Museum, Greenwich, 26-27 November 1998
 

Dr Jenny Balfour-Paul	Dyeing with indigo and mud in Mali and Senegal
Patrick Brenac	Plant Dyes : from archaeology to industry
Mr Chris Cooksey	Synthesis and properties of 6-bromoindigo
Dr Vincent Daniels	Damage caused by black, iron containing dyes
Dr Alan Dronsfield	Synthetic alizarin — the dye that changed history
Ester Ferreira	Development of analytical techniques for the study of natural yellow dyes in ancient textiles
Prof Dr Robert Fuchs	A green corrosion of a blue dyestuff
Dr Valery Golikov	Experimental Investigation of Influences of (i) types and concentrations of cations and (ii) cochineal concentrations, pH, anions, cream of tartar and galls.
Dr Oliver Hahn	Influence of fungicides and insecticides on colour materials
Rowena Hill	Current use of traditional (natural organic) dyes from Papua New Guineau
Professor Philip John	Scientific basis of indigo production from woad by medieval techniques
Prof Zvi Koren	Where Has All the Red Gone (in Safflower Dyeings)?
Dr Cheryl Porter	The colouring of alum-tawed skins on late medieval books
Ms Frances Pritchard	Mariano Fortuny (1871-1949): his use of natural dyes
Dr Ken Seddon	Dyes and Ancient Papers
Mr Phil Shaw	Spectral Ref analysis of plant based CMYK printing ink substitutes
Dr George Taylor	Some Dyes and How I got to Know Them
Dr André Verhecken	A small experiment in rearing Peruvian cochineal
Dr Jan Wouters	The dye of Rubia Peregrina
Nicolas Wyplosz	Analysis of natural organic pigments by laser desorption mass spectrometry
Dr I I Ziderman	Revival of Tekhelet (Hyacinth-purple) Dyeing with M. trunculus in Israel: Chemical Complications

Held at the Musee Historique des Tissus, Lyon, 11-12 December 1997
 

Stephan Guillermond	Presentation of the textile databank of the Museum
Jan Wouters	HPLC analysis of discoloured safflower
Witold Nowik	Differentiation and identification of some varieties of red wood used in dyeing by HPLC-DAD
Harald Böhmer and Recep Karadag	Dye analyses by derivative UV/Vis Spectrophotometry
Robert Fuchs	The analysis of plant dyes in medieval book illuminations
Doris Oltrogge	Red dyes - the terms and their interpretation in medieval recipes
Andreas Schmidt-Colinet	The Palmyra textiles
Philippe Borgard	The amphoras of Lipari and the alum trade of Antiquity
Georg Stark	Indigo and the 40 robbers - romantic transfigurations of the blueprinters trade in modern society
Phil Shaw	New developments in four colour printing using plant colourants
Tijani Karmous and Naceur Ayed	Orchil lichens of Tunisia: chromatographic identification and dye elaboration
Naceur Ayed and Abir Alatrache	Traditional recipes for natural wool-dyeing in the south of Tunisia
Jo Kirby	(to be added)
Anita Quye	Tartan dyes of the 18th - early 19th century - a progress report
André Verhecken	Dye analysis of Asiatic textiles
Zvi Koren	(to be added)
Chris Cooksey and Robert Withnall	Tyrian blue
Abir Alatrache and Naceur Ayed	The last indigo dyer in Tunisia: technology and quality control
Jenny Balfour-Paul	Indigo and mud in Mali and Senegal
Christian Doelsch	(to be added)
Marie Schoefer	Presentation of the textile conservation and restauration workshop of the museum

Held at the Whitworth Art Gallery, Manchester, 14-15 November 1996
 
 

Cheryl Porter	The use of Tyrian Purple in manuscripts
Chris Cooksey and Robert Withnall	A study of the precursors to Tyrian Purple
Phil Shaw	Vegetable colorants in screen process printing inks
Hero Granger-Taylor	The source of early blue dye in the Near East and Mediterranean: woad or indigo?
Zvi Koren	A tale of two insects
Bill Cooke and Chris Carr	The use of CZE and Mass Spectrometry in the analysis of natural dyestuffs
Ran Boytner and Arie Wallert	Evidence of new dyestuffs from northern Peru: lac and madder in the Lambayeque textiles from Pacatnamu
Claudia M D Moresi and JanWouters	HPLC analysis of extracts, dyeings and lakes, prepared with 21 species of the genus Relbunium
Yasuko Noda and Susumo Shimoyama	Non destructive determination of plant dyestuffs used for coloured threads of an ancient Chinese brocade, interwoven with gold and coloured threads, employing a three dimensional fluorescence spectrum technique using fibre optics
Regina Hofmann	The Buhler Collection - Indonesian dyeplants
Deryn O'Connor	An unorthodox use of a 19th century basic dye by some Miao in China
Michèle Dallon	Orseille: collecting and dyeing in Auvergne, France
Claude Andary, Dominique Cardon and A Gargadennec	Mediterranean yellow dye-plants of historical importance, Part III
Claude Andary, Dominique Cardon and A Gargadennec	Daphne gnidium: a little known yellow dye-plant
Anita Quye, Jan Wouters and Jaap Boon	Fading hopes for flavanoid dye identification?
George Taylor	One or two odd items