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Table 1 Colorants included in the study

From: Creation and reference characterization of Edo period Japanese woodblock printing ink colorant samples using multimodal imaging and reflectance spectroscopy

Colorant sourceJapanese nameEnglish nameMaterial typeSupplier and number
Blue
 Commelina communis L.TsuyukusaDayflowerDye-infused paperTanaka Nao 21900100
 Indigofera tinctoria/Polygonum tinctoriumAiIndigo (Indian/Japanese)Prepared powderKremer 36000/36004
 Ferrocyanide saltBero-aiPrussian bluePrepared powderKremer 45202
Red
 Carthamus tinctorius L.BeniSafflowerFlowersTanaka Nao 13520620
 Caesalpinia sappan L.SuoSappanwoodHeartwoodTanaka Nao 13521120
 Rubia tinctorum L./Rubia cordifolia L.AkaneMadder (Western/Indian)RootsKremer 37201/Tanaka Nao 13520320
 Dactylopius coccus Costa/コチニールCochinealDried liceKremer 36040
 Kermes vermilio Planch.ケルメスKermesDried liceKremer 36045
 Laccifer lacca KerrラックLacPrepared powderKremer 36020
 HematiteBengaraRed ochrePrepared powderSinopia PCP400
 Mercuric sulfideShuVermilionPrepared powderKremer 42000
 Lead tetroxideTanRed leadPrepared powderKremer 42500
Yellow
 Miscanthus tinctorius/senensisKariyasuRice plantGrassTanaka Nao 13500320
 Sophora japonica/Styphnolobium japonicumEnjuPagoda treeFlower budsTanaka Nao 13500220
 Myrica rubiaYamamomoMountain peachBarkTanaka Nao 13502020
 Malus sieboldiiZumiToringo crabappleBarkArnold Arboretum
 Phellodendron amurenseKihadaAmur cork treeInner barkTanaka Nao 13500420
 Gardenia augusta/jasminoidesKuchinashiGardeniaDried fruitTanaka Nao 13500520
 Garcinia morella-ōGambogePrepared powderKremer 37050
 Curcuma xanthorrhizaUkonTurmericPrepared powderKremer 37220
 GoethiteŌdoYellow ochrePrepared powderKremer 40301
 Arsenic sulfideSekiōOrpimentPrepared powderKremer 10700