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High strength kami-ito yarns from microbial cellulose biofilms
Ayako Takagi1, Xun Niu2, Peipei Wang2
1Bioproducts Institute, The University of British Columbia, 2385 East Mall, Vancouver, BC V6T 1Z4, Canada; Master of Interdisciplinary Design, Industrial Design, Emily Carr University of Art + Design, 520 E 1st Ave, Vancouver, BC V5T 0H2, Canada.
International Journal of Biological Macromolecules
|March 9, 2025
Summary
We created strong, sustainable textile yarns from microbial biofilms, offering an eco-friendly alternative to cotton. These bacterial cellulose yarns are durable, dyeable, and comparable to natural fibers.
Area of Science:
- Materials Science
- Biotechnology
- Textile Engineering
Background:
- Traditional textile production relies heavily on resource-intensive materials like cotton and synthetic cellulose fibers.
- There is a growing demand for sustainable and eco-friendly alternatives in the textile industry.
- Microbial cellulose offers a promising bio-based feedstock for novel material development.
Purpose of the Study:
- To develop high-strength, sustainable textile yarns from microbial cellulose biofilms.
- To explore an eco-friendly alternative to conventional textile fibers.
- To investigate the properties of yarns produced with minimal processing and chemical use.
Main Methods:
- Culturing bacterial cellulose biofilms.
- Dyeing microbial cellulose biofilms to produce yarns.
- Characterizing yarn properties, including tensile strength, stretchability, and water absorption.
Main Results:
- Developed yarns from bacterial cellulose biofilms with tensile strengths up to 200 MPa (55 MPa wet).
- Achieved significant stretchability, with dry elongation reaching 23%.
- Demonstrated water absorption comparable to natural fibers (up to 24% at 100% RH).
Conclusions:
- Microbial cellulose biofilms can be processed into high-performance, sustainable textile yarns.
- These yarns offer a viable, eco-friendly alternative to cotton and synthetic cellulose fibers.
- The multidisciplinary approach integrates biology, art, and design for sustainable textile innovation.
