Fig. 3: Spectrophotometric analysis.
From: Ultrablack wool textiles inspired by hierarchical avian structure
a Red, green, and blue (RGB) scaling system representing the intensity of each color in corresponding samples (Fabric samples: A. UBW, B. Flock, C. Black merino wool (BMW), D. Black polyester blend (BPETB), E. PDAMW, F. Dark gray polyester (DGPET), G. PDA-dyed Eri silk (PDAES)32, H. PDA-dyed silk (PDAS)33). b Total reflectance (%R), total transmittance (%T), and total absorbance (%A) within the visible spectrum (λ = 400–700 nm) with (1) legend for Fig. 3b–e, and schematic illustrations for (2) total reflectance, (3) total transmittance, and (4) transflectance (%TR). c Graphical summary comparing L* value, GSM (g/m2), volume (cm3), and average and wavelength specific (λ = 550 nm) %R, %T, and %A. d Angle variable transflectance of wool samples. e Angle variable transflectance of UBW and commercially available ultrablack flocked fabric.
