Innovation of Textiles through Natural By-Products and Wastes

Abstract

Nowadays, the competitiveness of the textile industry and the consumers' interest have been increasing the demand for innovative and functional textiles. Allied to this, sustainable developments are playing an increasingly important role in the textile industry. Such concerns led to a new development strategy based on the valorization of bio-based wastes and by-products of different industries, inserting this in the circular economy paradigm. These bio-based wastes and by-products come from several industries, as the agri-food industry. These resources present an enormous potential for valorization in the textile finish due to their intrinsic properties (antimicrobial, prebiotic, antioxidant activity, among others). This chapter will review the latest innovation and textile product development through different by-products and wastes, their main properties and characteristics and the advantages that they offer to the textile industry.

Proteins Derived from the Dairy Losses and By-Products as Raw Materials for Non-Food Applications

“…Casein, when used in the pre-treatment stages, also allowed the improvement of the dyeing process for natural dyes, especially for natural fibers like cotton and wool [ 30 ]. Milk is able to facilitate the dyeing process, not only because of its protein component [ 40 ]. The modification of textile dyes with lactose improved their water solubility, allowing the elimination of surfactants and mordants in the dyeing process [ 36 ].…”

Textile bio-based and bioactive coatings using vegetal waste and by-products

“…En este contexto, la Bioeconomía surge como una alternativa que proporciona recursos de base biológica como reemplazos viables de las contrapartes basadas en fósiles para producir biomateriales (Mahari et al, 2021). Los subproductos y desechos de diferentes fuentes e industrias como la vegetal, agroforestal, alimentaria y los residuos industriales son frecuentemente utilizados como biomasa o eliminados en vertederos (Coelho et al, 2020). La utilización de residuos como materia prima para fabricar productos de valor agregado ha abierto nuevas vías que contribuyen a la sostenibilidad ambiental alineada con un modelo comercial circular (Gaur et al, 2022).…”

“…In this context, bioeconomy emerges as an alternative providing bio-based resources as viable replacements to the fossil-based counterparts to produce biomaterials (Mahari et al, 2021). The by-products and waste from different sources and industries such as vegetable, agro-forestry, food and industrial residues are frequently used as biomass or disposed of in landfills (Coelho et al, 2020). The utilization of waste as a feedstock for production of value-added products has opened new avenues contributing to environmental sustainability aligned with a circular business model (Gaur et al, 2022).…”

“…El aserrín presenta propiedades valiosas como buena estabilidad mecánica, superficie rugosa, alta porosidad, alta área superficial, absorbencia, alto contenido de carbono, fácil biodegradación y fácil modificación, lo que permite su aplicación en diferentes áreas (Mallakpour et al, 2021). La corteza de pino también es un residuo muy abundante con un alto potencial para aplicaciones de revestimiento textil, proporcionándoles un color oscuro y un tono muy atractivo con algunas funcionalidades añadidas como propiedades antioxidantes, antimicrobianas y aromáticas (Coelho et al, 2020). Por lo tanto, este estudio se centró en el uso de subproductos agroindustriales para crear productos textiles de base biológica con atributos económicos y ecológicos a través de tecnologías de acabado, recubrimiento e inmersión.…”

“…La formulación de la capa de acabado seleccionada incluía Bayhydrol UH2606 (de Covestro) con Tinuvin and easy modification, enabling its application into different areas (Mallakpour et al, 2021). Pine bark is also a highly abundant residue with high potential for textile coating applications, providing the coatings a dark colour and a very attractive hue with some added functionalities such as antioxidant, antimicrobial and aromatic properties (Coelho et al, 2020). Thus, this study focused on using agro-industrial by-products to produce biobased textile products with economically and eco-friendly attributes through finishing, coating and dipping technologies.…”