Training Modules | Design For Recyclability

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Introduction to the Toolkit: translating theory into practice

Purpose

This toolkit was created with the aim of translating the theoretical concepts of design for recyclability into practical tools and methods that can be applied in the creative and production process. The toolkit supports designers in making decisions about material selection, construction techniques and labelling systems.

Learning outcomes

Upon completion of this toolkit, students will be able to:

  1. Identify materials and components suitable for fibre-to-fibre recycling.

  2. Apply the principles of single-material and design for disassembly to their work.

  3. Assess the recyclability potential of garments.

  4. Prototype a design (or redesign an existing garment) in line with the principles of recyclability.

According to Mindful Fashion New Zealand (2025), when designing a garment, designers should consider:

  1. What recycling options are available in your city, region, country?

  2. What characteristics must your product have or not have in order to enter these recycling streams?

  3. How will you communicate the recycling routes for which you have designed your garment to the user?

  4. What decisions can you make now to enable the wearer to participate in the recycling solution?

2. Step-by-step methodology: applying design for recyclability

Step 1: Map the life cycle

Start by visualising the garment’s life cycle: material sourcing → production → use → end of life.

Identify where recycling can realistically take place in your context (mechanical, chemical or hybrid systems).

       
Life cycle stage Current process Design for recyclability Notes / Partners involved
Material sourcing   Use single material, certified fibre  
Fabric production   Ensure that dyes and finishes are recyclable  
Garment construction   Simplify seams and finishes  
Use phase   Promote durability and repair  
Collection/Take-back   Collaborate with the recycler or brand system  
Recycling process   Compatible with mechanical/chemical system  

Step 2: Select appropriate materials

Choose single-material or low-blend fibres compatible with recycling streams:

  • 100% cotton, 100% polyester, 100% wool, 100% nylon.

  • Avoid blends such as fabrics containing cotton-polyester or elastane.

Evaluate materials using recyclability criteria:

  1. Is this fibre recyclable in existing systems?

  2. Will dyes or finishes affect recyclability?

  3. Is the supplier transparent about the origin of the fibres?

         
Fibre type Recycling method Compatibility with other fibres Common issues Best practices
Cotton Mechanical/Chemical Poor with synthetics Contamination from dyes Use natural or undyed colours
Wool Mechanical Poor with synthetics Fibre shortening Use single-fibre carded yarns
Polyester Chemical/Mechanical Compatible with polyester finishes Additives, finishes Use single-material polyester systems
Nylon Chemical Compatible with nylon finishes High costs, limited structures Use for entire garments and finishes
Elastane None Incompatible Degrades during processing Avoid altogether

Step 3: Simplify construction

Minimise elements made from different materials:

  • Replace metal zips with plastic ones (same polymer as the main fabric).

  • Use stitching made from the same family of fibres as the main material.

  • Avoid glued or fused interlinings.

Checklist for designing for disassembly:

  1. Are the finishes detachable?

  2. Are the components compatible for recycling?

  3. Can the garment be easily separated into single-material parts?

Objective: to enable easy disassembly and recycling by minimising mixed material components.

Tip: Use sewing threads, buttons or trims made from the same polymer family (e.g. polyester thread for polyester fabric).

         
Garment element Material Compatible with the main fibre? Removable? Action/redesign suggestion
Main fabric        
Sewing thread        
Zips/fastenings       Replace with compatible material
Labels       Print directly onto fabric
Interlining / bonding       Replace with sewn construction

Step 4: Optimise colour and finish

  • If possible, use colour selection or undyed materials.

  • Prefer water-based dyes or natural colour palettes that do not interfere with fibre recovery.

  • Avoid laminated prints or metallic coatings.

Objective: choose finishes that preserve the purity and recyclability of the fibres.

Tip: Where possible, avoid deeply dyed synthetic fabrics, as they require extra bleaching and degrade more during recycling.

       
Appearance Current design choice Impact on recyclability Alternative option
Dye type Reactive, pigmented or natural   Water-based or natural dyes
Printing type Plastisol/metallic/sublimation   Use water-based printing or laser engraving
Finish Coating, lamination, treatment   Use untreated or recyclable finishes
Colour range Light/dark/natural   Lightweight or undyed fibres for colour selection

Step 5: Label and communicate transparently

  • Include detailed labels on fibre composition (avoid generic ‘fabric blends’).

  • Use QR codes or NFC tags to store information digitally (in anticipation of the EU digital product passport).

  • Communicate recyclability potential to consumers (“This garment is 100% recyclable in mechanical systems”).

Objective: to provide clear, standardised information to ensure that the product can be correctly sorted and recycled.

Tip: Design your own personalised ‘Recyclable Clothing Passport’ that combines labelling and storytelling.

   
Name of garment [Insert project name]
Main material 100% recycled wool
Finishes None / compatible
Recyclability potential Mechanical recycling (wool fibre recovery)
End-of-life instructions Return to brand / textile recycling centre
QR Code / Digital link [Insert or design placeholder]

Step 6: Design for collection and return

Imagine how the garment will be collected after use:

  • Can it be part of a brand collection programme?

  • Is it durable enough to survive sorting and recycling processes?

Goal: close the loop by planning post-use recovery systems.

Tip: Encourage repair and return behaviours through incentives or storytelling.

       
Phase Partner/Channel Action/Process Design consideration
Retail Brand / shop Encourage returns Label communication
Collection Collection / collection box Sorting by fibre type Colour coding
Recycling Local mill/recycler Fibre recovery Compatible materials
Regeneration Yarn production Reuse of fibres Fibre length retention
New product Design/brand Reusing regenerated yarn Closed-loop storytelling

3. Assessment tools and checklists

Recyclability preparation checklist

       
Category Key question Yes / No Notes
Material Is the main fabric made from a single material?    
Finishes Are the finishes made from the same material or compatible materials?    
Construction Can the garment be easily taken apart?    
Colour/Finish Are the dyes and finishes non-toxic and recyclable?    
Labelling Is the fibre composition clear and traceable?    
Return system Is there a take-back or collection mechanism?    

Scoring system:

5–6 ‘Yes’ = Highly recyclable

3–4 “Yes” = Moderately recyclable

1–2 “Yes” = Low recyclability, redesign required

Visual assessment tool

Instructions: Use this tool with sketches or garment samples.

     
Category Score (1-5) Comments/Sketch notes
Purity of materials    
Simplicity of construction    
Compatibility of finishes    
Recyclability of colours/finishes    
Labelling and transparency    
Take-back potential    

4. Practical activity: “Recyclable Redesign Challenge”

Objective

Apply design principles for recyclability by evaluating and redesigning an existing garment.

Time: 2–3 hours, suitable for individual or small group work.

Materials: An existing garment (preferably a fast fashion or mixed fibre garment).

Scissors, pins, sketchbook, fibre identification labels, camera.

Step-by-step activity

Part 1 — Analyse

  1. Select a garment.

  2. Identify each material (fabric, thread, finish).

  3. Use the Recyclability Readiness Checklist to assess design barriers.

  4. Assign a recyclability score (1–5).

Part 2 — Redesign

  1. Reinvent the garment using single-material or recyclable substitutes.

  2. Simplify construction and replace incompatible fittings.

  3. Redesign the garment in sketch form or annotate the original photo.

  4. Propose labelling and end-of-life plan (e.g., collection, repair, trimming).

Optional extension:

If materials are available, students can make a prototype of a redesigned section (e.g., a single-material sleeve or a recyclable fastener).

Food for thought

  • What were the biggest design obstacles to recyclability?

  • How did your redesign improve recyclability?

  • How could industrial infrastructure support your design?