Use phase of apparel: A Literature review for Life Cycle Assessment with focus on wool.

ingridha on 24. February 2018

Kirsi Laitala, Ingun Grimstad Klepp & Beverley Henry

Summary

This report presents a literature review of clothing use phase. The purpose is to support improved methodological development for accounting for the use phase in Life Cycle Assessment (LCA) of apparel. All relevant textile fibres are included in the review. However, the main focus is on wool. We ask whether the use of wool has different environmental impacts than clothes in other fibres. The report builds on a review of literature from the past 20 years. The review showed that clothing made from different materials are used, and reused in different ways. Wool is washed differently as it has about ten degrees lower washing temperature than the average laundry in Europe. Wool is also more likely to be either dry-cleaned or washed by hand than other textiles. Moreover, when dried, it is less likely to be tumble-dried.

When comparing the number of days between the washes of different types of clothes, we found that respondents were likely to use their woollen products about twice as long between washes compared to their equivalent cotton products. We also found that woollen products had a longer average lifespan and were more likely to be reused or recycled. There is a lot of research-based information available concerning the use and re-use of clothing, and we believe there are sufficient results available on which to base LCA studies. Furthermore, we believe that environmental tools that compare different fibres but exclude use phase provide misleading results. Including the use phase in fibre ranking benchmark tools will improve the rigour and accuracy of these tools for all fibres, compared to reporting results for fibre production only. However, we have also shown that there are several methodological, conceptual and empirical knowledge gaps in existing literature.

Click here to read the full report (researchgate.net)

Wool as an Heirloom: How Natural Fibres Can Reinvent Value in Terms of Money, Life-Span and Love

ingridha on 24. August 2016

Ingun Grimstad Klepp, Tone Skårdal Tobiasson & Kirsi Laitala

Abstract

This paper addresses a main challenge for natural fibres; falling prices and increased focus on quantity versus quality. This is a challenge not only related to economic issues and profit, but is also unsustainable in an environmental perspective and in light of the challenges the textile sector and the world face. The paper uses wool as an example and in a surprising approach links the history and century-old traditions of natural fibers to an environmental thinking which supplements the traditional thinking around circular economy and LCA. Fabrics with a long life are the ones that have the lowest environmental impact (Fletcher and Tham2015; Laitala2014). Longevity or lifespan is a complex phenomenon in which both technical and social, or aesthetic aspects, are intertwined.

Click here to see the full paper in the book Advances in Science and Technology Towards Industrial Applications (springer.com)

Consumers’ clothing disposal behaviour – a synthesis of research results

ingridha on 15. September 2015

Kirsi Laitala

Abstract

Consumer decisions on clothing disposal are important from an environmental point of view, as they have an effect on the lifespan of clothing, as well as the potential for reuse and recycling. This article summarizes what is known about consumers’ clothing disposal behaviour based on empirical literature published during the past 30 years. The goal of this synthesis is to integrate empirical research, find generalizable results, evaluate the used research methods and identify central issues for future research. Most clothing disposal studies concentrate on disposal channels, behavioural motivations, disposal reasons and demographics of consumers that behave in specified ways.

Many consumers prefer to deliver clothing for reuse rather than to dispose of them, but convenience is paramount. Common disposal reasons for apparel were wear and tear, poor fit and fashion or boredom, in addition to lack of storage space. Survey methods are most common, which indicates the need of other research designs that preferably include the clothing items in method triangulation. Studied samples are dominated by young women and students, and research on more heterogeneous samples is needed.

Click here to read the full article (wiley.com)

Making Clothing Last: A Design Approach for Reducing the Environmental Impacts

ingridha on 31. August 2015

Kirsi Laitala, Casper Boks & Ingun Grimstad Klepp

Abstract

This article discusses the extent it is possible to delay clothing disposal through improved design, thus reducing negative environmental impacts. This has been done by including user centered design methods into more traditional quantitative consumer research to give new insights for design. Empirical data on reasons for disposal of 620 clothing items from 35 persons in 16 Norwegian households was collected. In total, 70 different disposal reasons were registered, which were combined into seven main categories.

Changes in garments as well as size and fit issues dominated, while functional, situational, taste, and fashion related reasons were less common. The article concludes with design solutions on four levels related to the important disposal reasons including product design (material and shape), service design, and systems design, but also shows that consumer behaviour is crucial. In addition, the combination of results obtained with various qualitative and quantitative methods proved to be suitable for giving rich data that can be used to drive design research forward.

Click here to read the full article (oda.oslomet.no)

Clothing disposal habits and consequences for life cycle assessment (LCA)

ingridha on 24. August 2015

Kirsi Laitala & Ingun Grimstad Klepp

Abstract

This chapter discusses the effects of end-of-life scenarios to the life cycle assessment (LCA) calculations. Consumers’ decisions in the disposal phase of clothing are crucial from an environmental point of view, as they affect the lifespan of clothing, as well as the potential for reuse and recycling. In doing this, examples of Norwegian consumers’ clothing use and disposal practices are used.

We will present statistics for the current situation in Norway as well as qualitative material on clothing disposal practices and discuss disposal methods and frequencies. Instead of assuming that all clothes are disposed of equally regardless of type of garment, person and place, the LCA analyses should be nuanced in relation to knowledge of disposal practices. Analysis also shows also that if improvements are made in facilitating reuse, clothing lifespans could easily be prolonged.

Click here to read the full article (sciencedirect.com)

Consumers’ clothing disposal behaviour – a synthesis of research results

lisbethl on 15. September 2014

Kirsi Laitala

Abstract

Consumer decisions on clothing disposal are important from an environmental point of view, as they have an effect on the lifespan of clothing, as well as the potential for reuse and recycling. This article summarizes what is known about consumers’ clothing disposal behaviour based on empirical literature published during the past 30 years. The goal of this synthesis is to integrate empirical research, find generalizable results, evaluate the used research methods and identify central issues for future research. Most clothing disposal studies concentrate on disposal channels, behavioural motivations, disposal reasons and demographics of consumers that behave in specified ways.

Many consumers prefer to deliver clothing for reuse rather than to dispose of them, but convenience is paramount. Common disposal reasons for apparel were wear and tear, poor fit and fashion or boredom, in addition to lack of storage space. Survey methods are most common, which indicates the need of other research designs that preferably include the clothing items in method triangulation. Studied samples are dominated by young women and students, and research on more heterogeneous samples is needed.

Click here to read the full article (wiley.com)

Sustainable clothing design: use matters

ingridha on 24. August 2012

Kirsi Laitala and Casper Boks

Abstract

Many life cycle assessment studies document that the use period is the most resource-demanding phase during the clothing life cycle. In this paper, we discuss how design can help to reduce the environmental impacts of clothing. Motives behind clothing disposal, acquisition practices and maintenance habits are analysed based on two surveys, qualitative interviews of households, and examination of disposed clothing. The main reasons for clothing disposal were changes in garments, followed by size and fit issues, taste-related unsuitability, situational reasons, functional shortcomings and fashion or style changes. Several design solutions can enable the users to keep and use the clothes longer, and reduce the need for laundering, thus potentially decreasing the total environmental effects of clothing consumption.

Click here to read the full article (inderscienceonline.com).