Fig. 1: The manufacturing process, weathering process and the total color difference.
From: Study of the long-term degradation behavior of bamboo scrimber under natural weathering

a Manufacturing process of bamboo scrimber. b Weathering process of bamboo scrimber. c The main approaches for forming colored substances (α-quinone and β-quinone). d ΔE* results for 6 years between two regions: (●) the north and (■) the south.