Alginate Fibres (Seaweed-Based)
category
Alginate fibres produced from alginic acid extracted from brown seaweed (Laminaria, Macrocystis), dissolved in sodium hydroxide forming sodium alginate solution, wet-spun into calcium chloride bath forming insoluble calcium alginate fibres. Known for high absorbency, biocompatibility, and hemostatic properties.
Role
Marine-based renewable fibre primarily used in medical textiles (wound dressings) but finding applications in specialty textiles, sustainable fashion, and functional materials leveraging unique gelling and moisture management properties.
Subtopics
- Alginate Fibre Production Process Production process: (1) brown seaweed extraction with sodium carbonate (pH 10-11) at 50-80°C, (2) fi…
- Alginate Fibre Structure and Properties Properties: tenacity 1.0-2.5 g/den (dry), 0.5-1.0 g/den (wet, loses 50-60% strength), elongation 15-…
- Alginate in Medical Wound Dressings Wound dressing applications (80% of alginate fibre use): calcium alginate dressings for exuding woun…
- Alginate in Specialty and Fashion Textiles Specialty applications: dissolvable fashion (garments designed to dissolve in water for artistic/con…
- Alginate Films and Coatings Non-fibre applications: alginate films for food packaging (edible, biodegradable, oxygen barrier), t…
- Alginate Sustainability and Ocean Farming Sustainability aspects: seaweed cultivation requires no freshwater, fertilizers, or pesticides; grow…
- Alginate Fibre Blends and Composites Blends: alginate/cotton (80:20 to 95:5 in yarns—moisture management, skin contact comfort), alginate…
- Alginate Fibre Processing and Limitations Processing challenges: low dry tenacity (1-2 g/den) and very low wet strength limiting traditional t…
- Alginate Fibre Market and Production Market: global alginate fibre production ~10,000-15,000 tonnes annually (small fraction of 75,000+ t…
- Alginate Future Developments and Innovation Innovations: chemically modified alginates with improved mechanical properties, alginate-graphene co…