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UnLimited Backpack by Kuan-Hua Chou
UnLimited Backpack by Kuan-Hua Chou
UnLimited Backpack by Kuan-Hua Chou
UnLimited Backpack by Kuan-Hua Chou
UnLimited Backpack by Kuan-Hua Chou

Kuan-hua Chou

Bronze Sustainable Products, Projects and Green Design · 2020

UnLimited Backpack

by Kuan-Hua Chou

  • A' Design Award 2020 Bronze Winner in Sustainable Products, Projects and Green Design
  • Awarded April 15, 2020
  • CLIENT: Kuan-hua Chou
  • Estimated Number of Design Views: 18,934
  • Verification code 94B8E648D3 · Verify this award
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About UnLimited Backpack

UnLimited is a recyclable backpack designed for urban cyclists. The backpack is fully waterproof and adjustable in size. A concertina structure allows the bag to expand for unexpected items and to compress into a slim shape that improves mobility. UnLimited is made of one material, a recyclable thermoplastic elastomer with different levels of hardness, and is sealed by heat welding. Most backpacks combine several materials and are hard to recycle. The single material construction supports reuse and recycling at the end of the service life.

Press Kit

Unique Properties
UnLimited is a recyclable, fully waterproof and size adjustable backpack tailored to the needs of an urban slow cyclist. This project aims to demonstrate the unlimited and limited requirements of space and material through a daily backpack. It can both expand to accommodate unexpected items and compress to keep the backpack streamlined to allow for better mobility.
Dimensions & Packaging
290 mm x 410 mm x (20~150) mm, 860 g
Tags
backpack, material, exploration, sustainable, plastics, responsible consumption and production, slow cycling, commuting, unlimited, limited
Production Technology
The concept and production focus on concertina structure, material features and plastic production methods. Following the design philosophy for 'design of reduction', the backpack is sealed by heat welding and made of mono-material DuPont Hytrel, or similar recyclable thermoplastic elastomers with different levels of hardness. This feature is in stark contrast to the backpacks on the market today, which are multi-material and hard to recycle.
Design Challenge
How to bring DuPont Hytrel from industrial usages to daily life market is the first challenge of this project. Another barrier is to search suitable hardness and thickness for the concertina structure, which should provide an instantly positive user experience.
Project Duration
The material research started from visiting DuPont Geneva Innovation Center in October 2016. The concept development was implemented during the springs of 2017 and 2018 in London, following a release in the 2018 degree show at the Royal College of Art. The latest prototype was made in November 2019 in Tainan.
Operation Flow
Enough? Enough! UnLimited provides cyclists space depends on their needs. However, for the limitation of a bike, cyclists should not be a greedy user. They have to ensure the load they carry can keep their journey comfortable, not an obstacle. The project reflects balance and interaction between cyclists and their freedom of bringing as much as they can or as less as they can.
Research
The design research was conducted through material exploration firstly and discovering the target audience and market through survey, road observation and 1:1 interview.
Inspiration
Plastics that improve with age. The project is to design a product, with recyclable plastic, that is sustainable and creates a genuine bond with the user. An object that improves with age and counters some of the negative attributes often attributed to plastics such as cheap, transient and unemotional. Considering the longevity of a solution but also its place in a circular economy. What is its service life, how can it be reused, recycled or repurposed if it comes to the end of its useful life?
Image Credits
Photographer: Kuan-hua Chou

VIDEO CREDITS:
Filmmaker: Hiroki Yokoyama
Composer: Eternity Bro
Starring: Victoria Lynn-Hamilton, Anthony Fanna, Beatrice Maione
Patents
Copyrights belong to Kuan-hua Chou, 2018.

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