Unit 2: Applying sustainable design thinking
Sustainable Design notes · PTU syllabus (BSTD 408-20)
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Unit summary
Sustainable design is a team effort that asks hard questions about how products are made and used. This unit covers asking the right questions, collaborating with technologists, scientists, growers, manufacturers and marketing, and understanding consumer-facing performance, aesthetics and how products are actually used.
After this unit you can
- Ask the right questions at each stage of design
- Collaborate across the supply chain
- Balance performance, aesthetics and sustainability
- Design for real-world use and end of life
PTU syllabus topics
- Asking the right questions
- collaborating with technologists/scientists/growers/manufacturers/marketing
- understanding consumer-facing performance and aesthetic qualities and how products are actually used
Material
What is it made of, and where from?
Process
How much water, energy and chemicals?
People
Are workers treated fairly?
Use
How will people actually use and wash it?
End
What happens after it's discarded?
Topic 1
Asking the right questions
- Need
- Is this product needed? Can an existing one be reused?
- Material
- What is it made from, where, by whom? Is it recycled or recyclable?
- Process
- How much water, energy and chemicals are used?
- Durability
- Will it last? Can it be repaired?
- Use
- How will the customer wash and care for it?
- End of life
- Can it be resold, recycled or composted?
- People
- Are workers paid fairly and safe?
Topic 2
Collaboration across the supply chain
Growers and fibre producers
Organic and regenerative farming, traceable fibre
Organic cotton farmer groups
Scientists and technologists
New fibres, dyes and recycling methods
Fibre-to-fibre recycling, bio-based dyes
Manufacturers
Cleaner production, effluent treatment, fair labour
Zero-discharge dye houses
Artisans
Low-energy hand processes and heritage skills
Handloom and natural-dye clusters
Marketing and retail
Honest communication, take-back schemes
Care labels, resale programmes
- Avoid greenwashing: make specific, verifiable claims backed by certification and data.
Topic 3
Consumer-facing performance and aesthetics
- Sustainable products must still perform (fit, comfort, strength, colourfastness) and look desirable; otherwise they are discarded early.
- Timeless design
- Classic shapes outlast trends
- Quality construction
- Strong seams, good finishing
- Versatility
- Multi-way and modular garments
- Easy care
- Cold wash, line dry, less ironing
- Emotional durability
- Stories, craft and personalisation build attachment
Topic 4
How products are actually used
- 1
Research how customers use and care for the product
- 2
Identify impact hotspots (e.g., frequent hot washing)
- 3
Redesign — fabrics needing cooler washes, fewer washes (odour-resistant), repair kits
- 4
Communicate care instructions clearly
- 5
Plan take-back, resale or recycling
- 6
Measure and improve
Example
A brand finds most energy use of a T-shirt comes from washing and tumble drying; it designs quick-drying fabric, labels "wash at 30 °C, line dry", and offers a take-back scheme for recycling.
Key terms
- Greenwashing
- Misleading claims of environmental benefit
- Traceability
- Knowing the origin of materials at every stage
- Emotional durability
- Design that keeps users attached to a product
- Take-back scheme
- Collecting used products for reuse or recycling
- Impact hotspot
- Stage with the greatest environmental impact
Quick revision
- Key design questions — need, material, process, durability, use, end of life, people.
- Collaborators and their roles; avoiding greenwashing.
- Performance and aesthetics; design responses.
- Designing for real use; care labelling; take-back.
Important exam questions
Practice questions written to the PTU exam pattern for this unit's syllabus: short answers (Section A style) and long answers (Sections B and C style).
Short-answer questions
- Q1.Name three questions a sustainable designer should ask.
- Q2.How can scientists help sustainable textile design?
- Q3.What is greenwashing?
- Q4.What is emotional durability?
- Q5.Give one way to reduce impact during the use phase.
- Q6.What is a take-back scheme?
Long-answer questions
- Q1.Explain how to apply sustainable design thinking through the right questions.
- Q2.Explain the role of collaboration in sustainable textile design.
- Q3.Explain how consumer use influences sustainable design decisions.
Stuck on this unit?
Message SBS on WhatsApp for help with Sustainable Design, or to ask about studying B.Sc Textile at Synetic.