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EU-Artech Interlaboratory study of Weld Dye and Pigment

EU-Artech Interlaboratory study of Weld Dye and Pigment. Alison Hulme 1 , Hamish McNab 1 , David Peggie 1,2 and Anita Quye 2 1 University of Edinburgh, 2 National Museums of Scotland. 4 Mordanted silk  Mordanted wool  Dyed wool, dye bath 1 (4 samples: A-D) Dyed wool, dye bath 2 

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EU-Artech Interlaboratory study of Weld Dye and Pigment

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  1. EU-Artech Interlaboratory study ofWeld Dye and Pigment Alison Hulme1, Hamish McNab1, David Peggie1,2 and Anita Quye2 1University of Edinburgh, 2National Museums of Scotland

  2. 4 Mordanted silk  Mordanted wool  Dyed wool, dye bath 1 (4 samples: A-D) Dyed wool, dye bath 2  Dyed silk, dye bath 3  Dyed silk, dye bath 4  Pigment 1  Pigment 2  Pigment 3  Samples 1-3 omitted Samples Analysed by NMS and UoE

  3. PDA HPLC data(NMS)

  4. Dyebaths 1-4 normalised

  5. Dyebath 1(1,2 and 4) normalised

  6. Luteolin

  7. Apigenin

  8. Luteolin-like

  9. LC-MS2 data(UoE)

  10. Luteolin

  11. MS(2) of m/z 285 (Luteolin)

  12. MS of Apigenin

  13. MS(2) of m/z 269 (Apigenin)

  14. MS of luteolin methyl ether

  15. MS of m/z 299 (luteolin methyl ether)

  16. Luteolin methyl ether

  17. Related research • Ester Ferreira • Flavonoid (yellow) dye photodegradation • David Peggie • Monitoring of Damage in Histroic Tapestries (MODHT) • European project • Flavonoid characterisation and photodegradation

  18. Related research • Composition characterisation • Weld • Dyer’s greenweed (Genista tinctoria) • Sawwort (Serratula tinctoria) • Light ageing studies: • weld • sawwort • dyer’s greenweed

  19. Pigments 1-3 normalised

  20. Pigments 1-3 absolute

  21. Dyebaths 1-4 absolute

  22. Dyebath 1 (1,2 and 4) absolute

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