MUMBAI, India, Feb. 6 -- Intellectual Property India has published a patent application (202641006722 A) filed by Malla Reddy Engineering College; Y Sudha; and Dr. P. Marimuthu, Hyderabad, Telangana, on Jan. 23, for 'eco-friendly process for extraction and implementation of leaf-based natural dyes in textiles.'
Inventor(s) include Malla Reddy Engineering College; Y Sudha; Dr. P. Marimuthu; and Dr. S. Udaya Bhaskar.
The application for the patent was published on Feb. 6, under issue no. 06/2026.
According to the abstract released by the Intellectual Property India: "A sustainable and environmentally friendly method of dyeing textiles with natural colours made from plant leaves. By offering a biodegradable, non-toxic substitute appropriate for contemporary textile applications, the invention tackles the environmental and health issues related to synthetic dyes. Selecting pigment-rich leaves from appropriate plant sources is the first step in the process. These leaves are then carefully cleaned and mechanically treated to improve their surface area for effective pigment extraction. In order to maximize pigment production while maintaining dye stability and colour purity, dyes are extracted using aqueous or mild natural solvent techniques under carefully regulated temperature and time conditions. To enhance colour strength and uniformity, the recovered dye solution may be concentrated after being filtered to eliminate solid particles. The application of natural dyes to a variety of textile textiles, including cotton, silk, wool, and blended materials, is another aspect of the innovation. To increase the absorption of dye and improve colour fastness, the materials may be pre-treated or mordanted with natural or non-toxic mordants before dying. treatments like immersion, cushioning, or surface application are used for dyeing, which is followed by drying and environmentally friendly fixing treatments. The newly developed technique produces colour hues that are consistent, vibrant and repeatable with better wash and light fastness qualities. The technology encourages environmentally friendly textile production by removing dangerous chemicals and lowering water pollution. the creation of high-quality, marketable, and sustainable natural-dyed fabrics, the technique promotes the adoption of green technologies and the establishment of sustainable livelihoods for artisans and small-scale textile companies."
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