Bioinspired Structural Color Patterns Derived from 1D Photonic Crystals with High Saturation and Brightness for Double Anti-Counterfeiting Decoration,ACS Applied Polymer Materials

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Bioinspired Structural Color Patterns Derived from 1D Photonic Crystals with High Saturation and Brightness for Double Anti-Counterfeiting Decoration
ACS Applied Polymer Materials ( IF 4.4 ) Pub Date : 2020-03-05 , DOI: 10.1021/acsapm.0c00047
Wei Ma ₁ , Yusheng Kou ₁ , Peng Zhao ₁ , Shufen Zhang ₁

Affiliation

Imitating the butterfly wing scale with a layer-by-layer structure and angle-dependent property, we present a facile method for the fabrication of flexible, transferable, and multilayered one-dimensional photonic crystal (1D PC) patterns with high color brightness and saturation for anticounterfeiting decoration. The PCs with a thickness less than 1 μm are assembled by alternate spin-coating poly(methyl methacrylate) (PMMA) nanoparticles and titania ones on plane substrates, and their color shade and reflectivity are adjusted by modulating PMMA concentration and stack number, respectively. As the particle-based PMMA layer shows weak binding force with both hydrophilic and hydrophobic substrates, when a certain external force from pressure-sensitive adhesive is exerted on the PC, the thin colorful film can be directly peeled off. With a patterned double-sided adhesive tape, the PCs with various structural color patterns can be transferred and strongly bonded to other flexible or curved substrates. Owing to the dark color of the adhesive, transmitted light is absorbed, and backscattering is effectively lowered to obtain very brilliant structural colors. The transferred PC patterns with beautiful colors show strong angle dependence and environmental stimulus responses because of the sensitive PMMA material and textural pores existing in the PCs. With this method, double anticounterfeiting with higher security and decorative effect is achieved with simple PCs for various product packages.

中文翻译：

一维光子晶体具有高饱和度和亮度的生物启发结构色彩图案，可用于双重防伪装饰

模仿具有层结构和角度依赖特性的蝴蝶翼秤，我们提出了一种用于制造具有高颜色亮度和饱和度的灵活，可转移和多层的一维光子晶体（1D PC）图案的简便方法用于防伪装饰。厚度小于1μm的PC是通过在平面基板上交替旋涂聚甲基丙烯酸甲酯（PMMA）纳米颗粒和二氧化钛而组装而成的，其色度和反射率分别通过调节PMMA浓度和堆叠数来调节。由于基于颗粒的PMMA层与亲水性和疏水性基材均显示出较弱的粘合力，因此当将压敏胶的一定外力施加到PC上时，可以直接剥离彩色薄膜。使用带图案的双面胶带，可以转移具有各种结构颜色图案的PC，并将其牢固地粘合到其他柔性或弯曲的基材上。由于粘合剂的颜色深，吸收了透射光，并有效降低了反向散射，从而获得了非常鲜艳的结构色。由于PC中存在敏感的PMMA材料和纹理孔，具有美丽色彩的已转印PC图案显示出强烈的角度依赖性和环境刺激响应。通过这种方法，使用简单的PC即可实现各种产品包装的双重防伪，并具有更高的安全性和装饰效果。由于粘合剂的颜色深，吸收了透射光，并有效降低了反向散射，从而获得了非常鲜艳的结构色。由于PC中存在敏感的PMMA材料和纹理孔，具有美丽色彩的已转印PC图案显示出强烈的角度依赖性和环境刺激响应。通过这种方法，使用简单的PC即可实现各种产品包装的双重防伪，并具有更高的安全性和装饰效果。由于粘合剂的深色，吸收了透射光，并有效降低了反向散射，从而获得了非常鲜艳的结构色。由于PC中存在敏感的PMMA材料和纹理孔，具有美丽色彩的已转移PC模式显示出强烈的角度依赖性和环境刺激响应。通过这种方法，使用简单的PC即可实现各种产品包装的双重防伪，并具有更高的安全性和装饰效果。

更新日期：2020-04-23

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