This invention discloses a high-loft natural antibacterial
fiber fleece material based on
copper ion-enriched fibers from *
Elsholtzia ciliata*, its preparation method, and its applications. It relates to the field of
natural fiber materials technology and includes the following steps: cultivating *
Elsholtzia ciliata* in a
copper-containing environment and collecting its root and / or stem tissues; cleaning, pre-treating, and fiberizing the tissues to retain naturally fixed
copper ions in the
plant cell walls within the
fiber structure; preparing a lightweight, high-loft, high-volume-ratio
fiber fleece material with durable antibacterial properties through at least one of the following processes: high-pressure steam expansion, bio-based
polymer cross-linking enhancement, and composite with natural functional additives; this fiber fleece can be further processed into
filling materials,
textile yarns, non-woven fabrics, or woven fabrics for application in daily-use or functional
textile fields. The fiber fleece material of this invention is naturally derived and achieves broad-spectrum antibacterial effects without additional
metal loading treatment, possessing significant environmental value and promising industrial application prospects.