Preparation of Structural Color on Cotton Fabric with High Color Fastness through Multiple Hydrogen Bonds between Polyphenol Hydroxyl and Lactam

Abstract

Structural coloration is an important way to realize eco-friendly dyeing of textiles. Structural colored cotton fabric was obtained by fabricating a polydopamine (PDA) film on the white cotton fabric at different polymerization reaction times. PDA is prone to generate capillary tension during film formation, which damages the uniformity and interfacial bonding force of the film. Multiple hydrogen bonds will form between the lactam group of polyvinylpyrrolidone (PVP) and the phenolic hydroxyl group of PDA. The introduced hydrogen bonds will effectively enhance the interfacial bond strength and lead to structural color with high color fastness. The surface morphology of double-layer aggregates of the PDA film on structural colored cotton fabric was revealed by scanning electron microscopy. The chemical constitution of the PDA film and PVP was investigated by Fourier transform infrared spectroscopy and X-ray diffraction. The color characteristics of structural colored cotton fabrics were analyzed by UV–vis reflectance spectroscopy and spectrophotometry.

Construction of Wash-Resistant Photonic Crystal-Coated Fabrics based on Hydrogen Bonds and a Dynamically Cross-Linking Double-Network Structure

“…Finally, the friction experiment was carried out to check the stability of the PC coatings when rubbing it by sandpaper back to forth (Figure ). When the PC coatings were constructed only by SiO 2 , after 10 times of rubbing, the PC coatings fell off and resulted in the color of the fabrics turning to dark blue, dark green, and dark red (the first column in Figure a).…”

“…3 Xu et al used dopamine to increase the stability of the PCs on the fabrics. 7 Due to the increase in interaction between the fabrics and PCs, the stability of the fabrics also increased. (2) Encapsulation of the PC coatings and the substrates from outside.…”

“…Structural colors, which are different from those produced by pigments or chemical dyes, derived from the reflection and scattering of light with periodic micro- or nanostructures, are also known as photonic crystals (PCs). − Structural coloration as the most possible way to realize the ecofriendly dying process for textiles or fabrics has attracted great attention in the past decades. ,− Now, different strategies have been made to construct PCs on textiles or fabrics, including methods such as dip-coating, spray coating, ,, self-assembly, ,, electrophoretic deposition, and screen print . An ideal structural colored fabric/textile for daily use needs to be bright colored, wash resistant, rub resistant.…”

Preparation of Acrylic Yarns with Durable Structural Colors Based on Stable Photonic Crystals

“…Although chemical colorants have been used for many years, they still have a number of drawbacks including the fact that they are not recyclable, pollute the environment, and prone to color fading. − With the development of industrial civilization, a number of new coloring technologies without dyes or pigments used to achieve the coloration of textiles are constantly emerging. Nowadays, the structural coloration of textiles, which is achieved by constructing a special organizational structure that can display scattering, interference, and diffraction, has attracted close attention from researchers. − …”

“…Nowadays, the structural coloration of textiles, which is achieved by constructing a special organizational structure that can display scattering, interference, and diffraction, has attracted close attention from researchers. 4 − 6 …”