Desktop Biofibers Spinning: An Open-Source Machine for Exploring Biobased Fibers and their Application Towards Sustainable Smart Textile Design

Document Title

Desktop Biofibers Spinning: An Open-Source Machine for Exploring Biobased Fibers and Their Application Towards Sustainable Smart Textile Design

Document Information

• Subject Area: Smart textiles, sustainable design, biobased materials
• Keywords: sustainable smart textiles, biobased materials, fibers, sustainability, digital fabrication

Research Background and Issues

• Problems and Challenges:
  1. The development of smart textiles integrates electronic devices with textiles, but the difficulty of recycling electronic and textile waste poses significant environmental challenges.
  2. Fiber production processes are often inaccessible to many designers and innovators, especially when it comes to using biobased materials as alternatives to petroleum-based or synthetic polymers.
• Importance: Fibers are the fundamental building blocks of all fabrics, and sustainable design at the raw material level can have profound impacts on the entire lifecycle of textiles.
• Research Motivation and Related Work:
  • The authors observed that existing material design efforts focus primarily on sheets or mold-based manufacturing, with limited attention to fibers as the basic unit.
  • The Human-Computer Interaction (HCI) field has explored various sustainable design approaches (e.g., decomposition design and repairable materials), but research at the fiber level remains scarce.

Solution

• Proposed Approach: Developed an open-source, low-cost desktop "biofiber spinning machine" capable of transforming biobased liquid materials (e.g., gelatin) into customized fibers.
• Innovations:
  • Provides an easy-to-replicate and user-friendly device for designers and researchers to explore fiber design.
  • Enables users to adjust fiber diameter, color, strength, and other properties.
  • Modular design allows flexibility and scalability to support more materials and production needs.
• Implementation Steps:
  1. Prepare spinning solution: Create spinning liquid by mixing gelatin, water, and isopropanol.
  2. Load the spinning machine: Use G-code software interface for control and set up the heater and nozzle.
  3. Customize fiber properties: Adjust parameters such as nozzle temperature and collector speed to generate fibers with varying diameters and performance.
  4. Conduct fiber post-processing: Modify fiber functionality and color characteristics using methods like dyeing or photochromic coatings.

Research Outcomes

• Specific Results:
  1. Device Development: Successfully developed a desktop biofiber spinning machine that supports low-cost exploration and production.
  2. Material Formulations: Provided a series of gelatin solution recipes suitable for spinning.
  3. Application Examples: Demonstrated applications in smart textiles, including dissolvable sensors and shape-changing interactive fabrics.
  4. Insights and Summary: Advocated for more interdisciplinary collaboration between HCI and textile fields, emphasizing the importance of material science knowledge for designers.
• Advantages Over Existing Technologies:
  • More flexible and cost-effective compared to traditional laboratory-grade equipment.
  • Provides a foundational exploration of sustainable applications for biobased materials.
  • Promotes knowledge and tool sharing through an open-source platform.
• Experimental and Evaluation Results:
  • Conducted comprehensive experiments on fiber diameter, strength, color changes, and flexibility, analyzing conditions for generating fibers with different properties.
  • Achieved optimal strength and flexibility using gelatin fibers with natural crosslinker "genipin."
• Limitations and Future Directions:
  • Limitations:
    1. Current machine operation relies on G-code commands, presenting a technical barrier.
    2. Experiments focused on gelatin materials, leaving the potential of other biobased materials unexplored.
    3. Gelatin fibers face performance limitations in certain applications (e.g., high-humidity environments).
  • Future Development:
    1. Develop a user-friendly graphical interface to lower operational barriers.
    2. Explore the spinning applicability of more materials (e.g., agar).
    3. Optimize the device to support more efficient fiber customization, such as adjustable nozzle shapes and automated collector settings.
    4. Expand to industrial applications or integrate with more complex textile production processes.