Short answer

Integrate garment-to-garment recycling into product design and supply chain strategies to significantly reduce environmental impact and enhance resource efficiency.

Field: Sustainability
Source: Chalmers Publication Library (Chalmers University of Technology) (2017)
Method: Life Cycle Assessment (LCA)
Evidence: Strong effect

Recycling used garments into new clothing (garment-to-garment recycling) demonstrates a lower environmental footprint across key impact categories than using virgin materials, particularly when high percentages of recycled content are achieved. This sustainability research insight is drawn from a 2017 study published in Chalmers Publication Library (Chalmers University of Technology). Using Life cycle assessment (lca), researchers explored how this design variable affects real-world outcomes. The key design takeaway: Integrate garment-to-garment recycling into product design and supply chain strategies to significantly reduce environmental impact and enhance resource efficiency.

Study

SustainabilityHigh ImpactStrong effect

Garment-to-Garment Recycling Significantly Reduces Environmental Impact Compared to Virgin Materials

Chalmers Publication Library (Chalmers University of Technology) · 2017

Key Findings

01Recycled yarns with high recycled input percentages showed lower impacts than virgin products across all assessed environmental categories (climate change, acidification, eutrophication, water consumption).
02The primary driver for impact reduction in high-value recycling was the displacement of virgin cotton and PET production.
03Downcycling offered some impact reduction but was less significant than garment-to-garment recycling.

Application

Design takeaway

Integrate garment-to-garment recycling into product design and supply chain strategies to significantly reduce environmental impact and enhance resource efficiency.

How to apply

When designing new apparel lines, specify a minimum percentage of recycled content and investigate partnerships with garment-to-garment recycling facilities to close the loop.

Project actions

01When researching materials for your design project, actively seek out options that are made from recycled content.
02Consider how your product's end-of-life can be managed through recycling, and if possible, design it to be easily recycled back into a similar product.

Method & Evidence

AimTo assess and compare the environmental performance of garment-to-garment recycling systems against virgin material production and downcycling scenarios.

MethodLife Cycle Assessment (LCA)

ProcedureThe study conducted a Life Cycle Assessment (LCA) on two garment-to-garment recycling systems and one downcycling system, comparing them to equivalent products made from virgin materials. The assessment included primary data on textile collection, sorting (manual and automated), mechanical recycling, and chemical recycling, evaluating impacts on climate change, acidification, eutrophication, and water consumption.

ContextFashion industry supply chain, textile waste management, circular economy initiatives.

Variables

IVType of recycling system (garment-to-garment vs. downcycling vs. virgin materials).

DVEnvironmental impact categories (climate change, acidification, eutrophication, water consumption).

CVMaterial type (e.g., cotton, PET), recycling processes (mechanical, chemical), collection and sorting methods.

Strengths & Limitations

Strengths

+Utilized primary data for a more accurate assessment.
+Included multiple environmental impact categories for a comprehensive view.

Limitations

The availability and cost of high-quality recycled fibers can be a practical limitation for designers.

Reliability & validity

The reliability of the findings depends on the accuracy and representativeness of the primary data collected for the LCA. Validity is enhanced by using established LCA methodologies and considering multiple impact categories.

Think critically

To what extent can current textile collection and sorting infrastructure support a large-scale shift towards garment-to-garment recycling, and what design interventions could improve this?

Design Principles

"Design for Circularity: Prioritize material choices and product structures that enable high-value recycling and minimize virgin resource dependency."

This research provides a data-driven justification for investing in and scaling high-value textile recycling systems. It highlights that moving beyond downcycling to true garment-to-garment loops can offer both environmental benefits and economic opportunities by displacing virgin resource consumption.

What This Means for Your Design

Making new clothes from old clothes is much better for the planet than using brand new materials. The more old clothes you use, the bigger the environmental benefit.

How to use in your project

1.Reference this study when discussing the environmental benefits of using recycled materials in your design project, particularly if you are proposing a circular design solution.

Add to My Project

Quick Cite

Paragraph starter

Research indicates that garment-to-garment recycling offers substantial environmental advantages over the use of virgin materials. Studies using Life Cycle Assessment have shown that incorporating high percentages of recycled content into new garments can significantly reduce impacts related to climate change, acidification, eutrophication, and water consumption by displacing virgin resource extraction and production.

Source

Chalmers Publication Library (Chalmers University of Technology)

The environmental performance of high value recycling for the fashion industry

journal · 2017

View source

Questions About This Research

What does the research say about garment-to-garment recycling significantly reduces environmental impact compared to virgin materials?: Integrate garment-to-garment recycling into product design and supply chain strategies to significantly reduce environmental impact and enhance resource efficiency. Evidence: Chalmers Publication Library (Chalmers University of Technology) (2017).
Why does "Garment-to-Garment Recycling Significantly Reduces Environmental Impact Compared to Virgin Materials" matter for design?: This research provides a data-driven justification for investing in and scaling high-value textile recycling systems. It highlights that moving beyond downcycling to true garment-to-garment loops can offer both environmental benefits and economic opportunities by displacing virgin resource consumption.
How can designers apply this research?: Integrate garment-to-garment recycling into product design and supply chain strategies to significantly reduce environmental impact and enhance resource efficiency.
What were the main findings?: Recycled yarns with high recycled input percentages showed lower impacts than virgin products across all assessed environmental categories (climate change, acidification, eutrophication, water consumption).. The primary driver for impact reduction in high-value recycling was the displacement of virgin cotton and PET production.. Downcycling offered some impact reduction but was less significant than garment-to-garment recycling.
What research method was used?: Life Cycle Assessment (LCA).
How strong is the evidence?: Evidence strength is rated Strong effect, based on a 2017 journal from Chalmers Publication Library (Chalmers University of Technology).
What should I do differently in my next project?: When designing new apparel lines, specify a minimum percentage of recycled content and investigate partnerships with garment-to-garment recycling facilities to close the loop.
What are the limitations?: The study's findings may vary depending on the specific recycling technologies employed, the efficiency of collection and sorting processes, and the geographical context of the supply chain.