Fig. 5 | Nature Communications

Fig. 5

From: Water assisted biomimetic synergistic process and its application in water-jet rewritable paper

Fig. 5

Other colours for WJRPs based on binary systems. a The structures of a series of acidochromic dyes. b Multicolours obtained by various acidochromic dyes in solution after treating with acid and c on solid state treated with B4H after addition of water and d corresponding UV-vis reflection spectra of the solid state. e Plots of corresponding positions of six kinds of WJRPs after adding water in the CIE 1931 colour space

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