GmbH Co KG Hauptstr 4147 88317 Aichstetten Germany MedColourTech Project 20062009The shredded and washed madder roots are boiled in an alum solution ID: 374891
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GmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009)Turkish Madder RootsTest-Production of Madder Lake pigment, according to a historic recipe, mentioned in Die Farbstoffeby P. Schützenberger, 1873. GmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009)The shredded and washed madder roots are boiled in an alum solution GmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009)filtered GmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009)sodium carbonate is added to the cold madder solution and brought to boiling point GmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009)The hot liquid GmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009)is left to cool down GmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009)and pumped through a high pressure filter system. GmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009)The extracted pigment stays in the filters, the filtered liquid is almost clear. GmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009)The filters are separated GmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009)and left to dry. GmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009)Ungrounddried madder lake. KREMER PIGMENTEGmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009)16 MadderLakes weretestedfor lightfastness in July2008.TheMadderLakes weregroundin linseedoiland appliedontowood. Half of thecolors werecoveredwithblackpaper, half of eachcolor was exposedto sunlight.On 29 September 2008 thefollowingvisualresultscouldberecorded: Verygood AlizarineCrimsondark, Type C 23611 MadderLake "ORANGE" 372056 Verygood AlizarineCrimsondark MadderLake "ROSE WOOD" 372055 Satisfatory MadderLake, brilliantbordeauxred 372142 Satisfatory MadderLake "Rose" 372054 Satisfatory MadderLake, luminousdarkred 372141 MadderLake "Peach" 372053 MadderLake, violet-brown 37217 MadderLake "SALMON" 372052 MadderLake, dark 37210 Satisfatory MadderLake "CORAL" 372051 MadderLake "HAZELNUT" 372058 MadderLake, yellowish 37203 Poor MadderLake "CRIMSON" 372057 Satisfatory MadderLake Results Product Name Product No Results Product Name Product No Verygood = no bleachingcanbeenseenGood = slightbleaching, thecolor characterisunchangedSatisfactory= thehuehas changeditsintensity, itisstill clearlyidentifiableFair = thehuehas changedvisibly, itismuchweakerbutstill identifiablePoor= hueand intensityhavechangedimmensly, theoriginal color canhardlyberecognized KREMER PIGMENTEGmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009) pigmentgroundin mediumlikegumarabic, paintedon paperfor lightfastness tests KREMER PIGMENTEGmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009) Lightfastness test KREMER PIGMENTEGmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009)MadderLake, Kremer-Made, 07/2008 -MedColourTech -"BROWN", precipitatedwithtin372059MadderLake, Kremer-Made, 07/2008 -MedColourTech -"HAZELNUT", precipitatedwithcopper372058MadderLake, Kremer Made, 06/2008 -MedColourTech -"CRIMSON", precipitatedwithcopper372057MadderLake, Kremer Made, 06/2008 -MedColourTech -"ORANGE"372056MadderLake, Kremer Made, 06/2008 -MedColourTech -"ROSEWOOD"372055MadderLake, Kremer Made, 12/2007 -MedColourTech -"ROSÉ"372054MadderLake, Kremer Made, 12/2007 -MedColourTech -"PEACH"372053MadderLake, Kremer Made, 09/2007 -MedColourTech -"SALMON"372052MadderLake, Kremer Made, 08/2007 -MedColourTech -"CORAL"372051MadderLake, Kremer Made, 08/2008 -MedColourTech -"SAFFRON"372050MadderLake, Kremer Made, 08/2008 -MedColourTech -"ORANGE", precipitatedwithtin372049MadderLake, Kremer Made, 09/2008 -MedColourTech -"COGNAC", precipitatedwithtin372048Thefollowingproducts wereproducedfor theMedColourTech project: GmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009) GmbH & Co. KG, Hauptstr. 41-47, 88317 Aichstetten, Germany (MedColourTech Project 2006-2009) MadderLakes