Spectral data of artificial weathering of coatings containing indigo pigment

Spectral data measured of wood samples coated with bio-based coatings containing natural indigo, synthetic indigo and a reference samples containing commercial pigment. The samples have been exposed to artificial weathering according to the description in the linked publication. Spectra were measured on visible region (400 -700 nm). Dataset related to publication: Jordan, J., Helander, R., Laaksonen, P. Colour stability of wood coatings pigmented with natural indigo from Isatis tinctoria after accelerated weathering, Coloration Technol. 2022, 138, 210– 218.