Method for manufacturing play-of-color article, play-of-color article, and play-of-color product including the same

A method for manufacturing a play-of-color article, comprising the steps of:

• (a) providing a first mixture that contains a solvent and a plurality of functionalized colloidal particles dispersed in the solvent;
• (b) replacing the solvent of the first mixture with a polymer solution that contains polymers, so that the functionalized colloidal particles are uniformly dispersed in the polymer solution, thereby obtaining a second mixture with an iridescent pattern;
• (c) adding an initiator to the second mixture with the iridescent pattern to obtain a third mixture, followed by injecting the third mixture into a mold and disturbing the third mixture in the mold, so that the third mixture in the mold is formed with a pattern;
• (d) leaving the third mixture with the pattern to stand, so as to allow the functionalized colloidal particles in the third mixture to self-assemble to form a crystalline arrangement, thereby obtaining a fourth mixture containing colloidal photonic crystals;
• and
• (e) subjecting the polymers in the fourth mixture to a cross-linking reaction, so that the polymers are solidified, thereby obtaining the play-of-color article.