Unit 1: Sustainability in textile design
Sustainable Design notes · PTU syllabus (BSTD 408-20)
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Unit summary
The textile and fashion industry is one of the world's largest polluters, so designers must think about the whole life of a product. This unit covers the role of sustainable design in future practice, its scope, and the theoretical, technical and practical considerations across a product's entire production process.
After this unit you can
- Explain why sustainability matters in textiles
- Describe the scope of sustainable design
- Analyse impacts across the product life cycle
- Identify sustainable materials, processes and certifications
PTU syllabus topics
- Role of sustainable design in future design practice
- scope of sustainable design
- understanding the theoretical
- technical and practical considerations of a product's entire production process
- 1. Design: For longevity and recycling
- 2. Sourcing: Organic, recycled fibres
- 3. Production: Less water, energy, chemicals
- 4. Use: Care, repair
- 5. End of life: Reuse, recycle
Topic 1
Why sustainable design matters
- Water
- Cotton growing and wet processing use huge volumes; dye effluent pollutes rivers
- Chemicals
- Hazardous dyes, finishes and PFAS
- Carbon emissions
- Fibre production, energy-intensive processing, transport
- Waste
- Fast fashion creates mountains of discarded clothing; landfill and burning
- Microplastics
- Synthetic fibres shed during washing
- Social
- Low wages, unsafe factories (Rana Plaza collapse, 2013), child labour
- Role of designers: most of a product's environmental impact is decided at the design stage — material choice, construction, durability and end-of-life.
Topic 2
Scope of sustainable design
Materials
Organic, recycled, regenerated and low-impact fibres
Processes
Water- and energy-saving dyeing, natural dyes, zero-discharge, renewable energy
Design for longevity and circularity
Durable, repairable, modular, recyclable mono-materials; zero-waste pattern cutting
Business models and people
Slow fashion, rental, resale, upcycling, fair wages, crafts and local production
Topic 3
The product life cycle
- 1Raw material
Fibre farming or synthesis
- 2Manufacturing
Spinning, weaving, processing, garmenting
- 3Distribution
Packaging and transport
- 4Use
Washing, drying, ironing — often the largest energy share
- 5End of life
Reuse, repair, recycle, compost — or landfill
- Life cycle assessment (LCA) measures impacts at each stage to compare options.
Topic 4
Sustainable materials and processes
Organic cotton
No synthetic pesticides or fertilisers
Lower yield; still water-intensive
Recycled polyester (rPET)
Diverts plastic bottles
Still sheds microfibres
Lyocell (Tencel)
Closed-loop solvent recovery; wood from managed forests
Energy use
Hemp, linen, jute
Low water and pesticide needs
Processing chemicals
Natural dyes
Renewable, low toxicity
Fastness and consistency
Peace (ahimsa) silk and khadi
Ethical, hand-made
Cost and scale
- GOTS
- Organic textiles across the supply chain
- OEKO-TEX Standard 100
- Tested for harmful substances
- GRS
- Recycled content
- Fairtrade
- Fair wages for farmers
- Bluesign and ZDHC
- Safer chemicals and zero discharge
- Indian initiatives: India Handloom brand, revival of natural-dye crafts, zero liquid discharge mandates in Tiruppur.
Key terms
- Sustainable design
- Design reducing environmental and social harm across a product's life
- Life cycle assessment
- Measuring impacts from raw material to disposal
- Circular design
- Designing products to be reused, repaired and recycled
- Zero-waste pattern
- Pattern cutting that leaves no fabric waste
- GOTS
- Global Organic Textile Standard
Quick revision
- Water, chemicals, carbon, waste, microplastics, social impacts.
- Designer's role at the design stage.
- Materials, processes, longevity and circularity, business models and people.
- Life cycle stages; LCA.
- Sustainable materials and certifications.
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.State three environmental impacts of the textile industry.
- Q2.Why is the design stage critical for sustainability?
- Q3.What is life cycle assessment?
- Q4.Name two sustainable fibres.
- Q5.What does GOTS certify?
- Q6.What is zero-waste pattern cutting?
Long-answer questions
- Q1.Explain the role and scope of sustainable design in textiles.
- Q2.Explain life cycle thinking for a textile product.
- Q3.Describe sustainable materials, processes and certifications.
Stuck on this unit?
Message SBS on WhatsApp for help with Sustainable Design, or to ask about studying B.Sc Textile at Synetic.