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Direct fabrication of template-free beads-on-a-string three-dimensional structural color yarn

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Abstract

The application of dye-free bionic materials in imparting distinctive structural colors to textiles has received increasing attention in recent years. Herein, inspired by the structure of normal pearl-necklaces, a novel beads-on-a-string yarn manifesting vivid structural colors was directly fabricated without the assistance of a template. Drawing from the relatively-controlled Stöber method, silica (SiO2) nanoparticles of a certain size and spherical shape were initially produced to build the foundation for constructing specific photonic crystals that generate designated structural colors. A thermal-assisted vertical deposition approach was then used build a beads-on-a-string structure on the substrate yarn which has brilliant structural colors because the colloidal nanoparticles undergo self-assembly and the substrate yarn detached from fabrics acquires a specific curvature after weaving the original fabrics. To improve the mechanical robustness of beads-on-a-string three dimensional (3D) structural color yarns, a protective and transparent coating poly(methyl methacrylate-butyl acrylate) (PMB) was synthesized and then spray-coated onto the as-prepared beads-on-a-string structural color yarn. This work provides new insight for fabrication of structural-colored yarns with particular beads-on-a-string structures and bright 3D structural colors, showing great potentials of developing a new 3D structural-colored yarns in diverse textile coloration areas.

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The data that support the findings of this study are available from the corresponding author upon reasonable request.

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Funding

This work was supported by The Hong Kong Polytechnic University Centrally Funded Postdoctoral Fellowship under the project of account code 1-YXB6.

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Conceptualization: [JY], [C-WK]; Methodology and Characterization: [JY], [WW], [SJ], [C-WK]; Formal analysis, investigation and data curation: [JY]; Writing-original draft preparation: [JY]; Supervision: [C-WK]; Visualization: [JY]; Writing-review and editing: [C-WK]; Funding acquisition: [C-WK]; Resources: [C-WK]. All authors read and approved the final manuscript.

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Correspondence to Chi-wai Kan.

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Yu, J., Wang, W., Jin, S. et al. Direct fabrication of template-free beads-on-a-string three-dimensional structural color yarn. Cellulose 30, 11797–11812 (2023). https://doi.org/10.1007/s10570-023-05570-5

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  • DOI: https://doi.org/10.1007/s10570-023-05570-5

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