According to the feedback of the manufacturers, the new mainstream factory has risen, and the overall transaction center of the market has moved up. On the demand side, the terminal is currently considering stocking up in autumn, and the actual transaction willingness is enhanced; From the supply side, some mainstream manufacturers have increased the load, and the actual output of the industry has increased. Some plastics and papermaking related downstream feedback some of the tight models are more expensive. Recent titanium dioxide raw material price trend is strong, titanium dioxide price upward support also increased, comprehensive market factors, the current price of titanium dioxide rose again.
The author thanks Marco Leona, Scientist-in-Charge of the Department of Scientific Research at the Metropolitan Museum of Art for conducting fluorescence spectrometry on Wheel of Fortune and a valuable discussion of the research, as well as Silvia Centeno, Research Scientist at the Metropolitan Museum of Art, who performed Raman analysis on the watercolors and also contributed her insight. The phenomenon of the phosphorescing lithopone was originally discovered during the author's fellowship in the Sherman Fairchild Center for the Conservation of Works on Paper, funded by the Andrew W. Mellon Foundation. The author thanks all her colleagues for their ideas and support during the research of this paper, and special thanks to Rachel Mustalish for her assistance in editing this work.