Origami - Japanology Plus

Key Concepts

• Origami: The traditional Japanese art of paper folding.
• Washi: Traditional Japanese paper, known for its thinness and strength.
• Crease Pattern: A blueprint or diagram indicating where to fold a single sheet of paper to create a complex shape.
• Miyake Issey's 1325 Line: Wearable clothing designed using origami principles, where flat fabric transforms into 3D garments.
• Odukidu Lab Craft: An origami influencer with a large social media following, known for creating cute and accessible origami designs.
• Japan Origami Academic Society: An organization dedicated to promoting origami research, popularization, and international exchange.
• Mura Fold: A folding method developed by astrophysicist Koryo Miura, originally for space exploration, allowing compact folding and unfolding of large surfaces like solar panels.
• Stent Graft: A medical device inspired by origami, used to expand narrowed blood vessels.
• Shape Memory Alloy: A material used in stent grafts that automatically unfolds at body temperature.
• Sea Cucumber Pattern: An origami folding pattern that inspired the design of stent grafts.
• Origami with Cells: A regenerative medicine technique where cells are manipulated to fold into 3D structures using origami principles.
• Self-Folding Materials: Materials that automatically fold into pre-determined shapes when exposed to specific stimuli like heat or water.
• Polyolafin: A type of plastic used in self-folding materials.

Origami: From Traditional Art to Cutting-Edge Technology

This program explores the multifaceted world of origami, tracing its origins as a traditional Japanese art form and its evolution into a source of inspiration for modern technology and industry.

Traditional Origami and its Cultural Significance

Origami, the art of paper folding, has been a cherished part of Japanese culture for centuries. It encompasses the creation of diverse shapes, from simple cranes and flowers to intricate animals and geometric forms, all from a single sheet of paper without the use of scissors.

• Historical Roots: The history of origami is closely intertwined with the history of paper in Japan. Paper-making techniques were introduced from China around 1,400 years ago. Initially, paper was made from hemp, but later, plants like kozo and gampi were used, leading to the development of washi.
• Washi Paper: This traditional Japanese paper is characterized by its thinness yet remarkable strength, and its whiteness symbolized purity. It was historically used for copying Buddhist sutras and in Shinto ceremonies.
• Early Folding Practices: The practice of paper folding, known as gori, emerged among samurai in the 12th century as a formal custom for wrapping gifts. This practice eventually evolved into origami.
• Evidence of Early Origami: A small knife from the 16th or early 17th century, with its sheath depicting folded paper cranes, suggests that origami existed by that period.
• Accessibility and Popularization: Initially, the high cost of washi limited origami to the wealthy. However, as paper production increased and costs decreased, origami became accessible to ordinary people.
• Formalization and Education: The book Hiden Senbazuru Orikata (Secret Techniques for Folding One Thousand Cranes), published in 1797, documented how to fold multiple linked cranes from a single sheet. During the 19th century, origami was incorporated into the school curriculum, solidifying its place in daily life.
• Global Recognition: After World War II, Japanese paper folding gained international recognition as an art form, largely due to the efforts of origami artist Akira Yoshizawa. Yoshizawa's highly artistic and lifelike paper animals and his dedication to popularizing origami abroad led to the universal adoption of the term "origami."

Modern Origami and Artistic Expression

Contemporary origami continues to push the boundaries of what is possible with paper folding, showcasing both accessibility and extreme complexity.

• Influencers and Online Communities: The internet has fostered a new generation of origami creators. "Odukidu Lab Craft" is highlighted as a popular origami influencer with over 1.7 million followers, sharing over 1,000 videos of how to create various origami items, many of which achieve over 1 million views.
• Artistic Styles: Origami creations range from "cute miniature creations" and "playful and cute origami creations" to "intricately shaped works that seem impossible to have come from a single sheet of paper." Realistic insect models and complex 3D geometric pieces are also showcased.
• Crease Patterns: Advanced origami relies on "crease patterns," which act as blueprints for folding. These patterns, with their densely packed lines indicating folds, allow for the creation of highly complex shapes without any cuts. The example of a Japanese rhinoceros beetle made from a 30x30 cm paper demonstrates this, with the crease pattern detailing areas for horns and hind wings.
• Masterpieces of Complexity: The work "Eugene," a 4m x 4m origami creation, exemplifies the pinnacle of modern origami. It features finely separated toes, horns, and individual scales, all achieved through folding a single sheet of paper without cuts. The public availability of crease patterns allows for replication and adaptation, akin to musicians playing a composed piece.

Origami in Fashion and Design

The principles of origami are being applied in innovative ways to fashion and wearable art.

• Miyake Issey's 1325 Line: Designer Issey Miyake's "1325" line of clothing demonstrates how origami can transform flat fabric into three-dimensional garments. These pieces are designed to be flat when folded but expand into wearable clothing when opened.

Technological Applications of Origami

The inherent efficiency and structural integrity derived from origami folding principles are being leveraged in various high-tech fields.

• Space Exploration: The "Mura fold," developed by astrophysicist Koryo Miura, is a prime example. This folding method allows large structures, such as solar panels, to be compactly folded for launch into space and then efficiently unfolded once in orbit.
• Medical Innovations:
  • Stent Grafts: Researchers at Hokkaido University have developed stent grafts inspired by origami. These tiny, folded medical devices are inserted into narrowed blood vessels and expand at body temperature to restore blood flow. The design utilizes origami techniques, specifically referencing the "sea cucumber pattern," to achieve controlled expansion. The stent grafts are made of shape memory alloy, enabling their automatic unfolding.
  • Regenerative Medicine: Origami principles are being applied to manipulate cells. "Origami-like plates" are used, and the natural movement and pulling force of cells cause these plates to fold up, creating 3D cellular structures. This technology allows for the rapid formation of 3D cells in various shapes, including hollow structures that can serve as artificial blood vessels. This has also led to the creation of artificial fertilized eggs for fertility treatments, based on the theory that artificial companions can stimulate natural fertilized eggs.
• Industrial Applications and Self-Assembly:
  • Automated Folding: Research is focused on quickly and automatically folding complex items. A technique involves printing origami patterns onto a transparent, heat-shrinkable sheet (like polyolafin). When heated to 70-100°C, the unprinted areas shrink, causing the sheet to fold automatically into a 3D shape, such as a hat. This process can reduce folding time from hours to seconds.
  • Potential Commercial Uses: This technology could be used for novelty items like postcards that transform into 3D models upon heating, or for more practical applications like self-assembling robots or parts for use in environments where human assembly is impossible, such as in space.

The Role of Paper in Origami

The type of paper used significantly impacts the outcome of origami creations.

• Washi vs. Western Paper: Washi, being handmade with randomly oriented fibers, is less prone to tearing, even when intricate slits are made. This makes it ideal for detailed origami. Western paper, typically machine-made with aligned fibers, is less suitable for such delicate work.
• Paper Thickness and Strength: For intricate designs with fine details, extremely thin and strong washi, like gampi paper, is preferred. For larger installations or polyhedrons requiring stiffness, thicker paper is used.
• "Kami" Paper: In Europe and the US, packs of colorful 15 cm square paper used for general origami are known as "kami."

Origami in Education

Origami clubs in schools, like the one at Kaisay School, demonstrate the continued engagement of younger generations with the art form.

• Kaisay School Origami Club: This club, established in 2003, has 30 members and meets twice a week. Students create a wide range of origami models, from swords and beetles to dragons and dogs. A highlight is the collaborative creation of large origami installations for the school festival.
• Student Perspectives: Students find origami both fun and challenging, with some noting that while regular studies might be more difficult, origami offers a deep and sometimes complex engagement. The interest in origami can even be a factor in choosing a school.

Conclusion

Origami, a practice with centuries of history, has transcended its origins as a simple hobby. It has evolved into a sophisticated art form and a powerful source of inspiration for technological innovation. From the delicate folds of washi paper to the self-assembling structures of advanced materials, the principles of origami continue to demonstrate their remarkable versatility and potential across diverse fields, including engineering, fashion, and medicine. The program concludes by emphasizing that with imagination, the possibilities for applying origami principles to new and unexpected applications are virtually limitless.