MinShed meeting Dec 4 2019 Presentation by Anne-Charlotte Hanning - PowerPoint PPT Presentation

MinShed meeting Dec 4 2019 Presentation by Anne-Charlotte Hanning and Emily Söderberg

Agenda 4 december 10:00-10:20 Sophie Mather from The MicroFibre Consortium (TMC) will inform about their test method which now is released. 10:20-10:25 CEN (The European standardisation organisation) and the future standardisation work concerning microplastics. 10:25-10:45 Steffen Schellenberger will present a study that investigated the release of side-chain fluorinated polymer-containing microplastic fibers from functional textiles during washing and a first estimates of perfluoroalkyl acid emissions. 10:45-11:00 Information about the latest testing results in WP2 – where we currently are investigating the influence of time , temperature and water volume in the washing machine. 2

Future standardisation work • 4th of October CIA (Cross Industry Agreement) submitted a proposal of a laboratory test method for assessing • microplastic shedding from textiles to CEN At the same meeting there was an Italian proposal of an exhaustive method for in depth analysis regarding • size distrubution , volume, morphology etc CEN proposed a new working item with the title ”Microplastics from textile sources” with two parts and also a • liason the CEN/TC/249 Plastics Anne-Charlotte H new member of the Swedish working group AG- Färg, Tvätt och Vatten • Next step • -Voting during spring 2020 - Start during Q3 2020 - 3

WP2 – Washing machine filtering Shedding affected by time and temperature during washing- Test setup Electrolux W555H washing machine • 3 kg Wash load • 2 pcs. of black PES fleece with overlocked edges á 300g – 2.4 kg of white PES standard ballast – 20 ml Liquid detergent “Via Color Sensitive” Batch no. 91571 • Drying • Fleece is hang dried OR tumble dried for 45 min, both in ambient temperature – Ballast is tumble dried for 45 min at maximum 80˚C (Electrolux T5130-LAB) – Filtering • 3 L effluent – Nylon net filter 10 µm – Weighing • Mass balance accurate down to 0.0001 g in standard climate – 4

Screening test - Part 1: Influence of Time and Temperature Wash set 1 Extra water, collecting Tumble drying of test 20 ˚C, 10 min dryer lint from ballast material Wash set 2 20 ˚C, 60 min Wash set 3 60 ˚C, 10 min Wash set 4 Extra water, collecting 60 ˚C, 60 min dryer lint from ballast 5

Screening test - Part 2: Influence of Extra Water Wash set 1 Extra water, collecting Tumble drying of test 20 ˚C, 10 min dryer lint from ballast material Wash set 2 20 ˚C, 60 min Wash set 3 60 ˚C, 10 min Wash set 4 Extra water, collecting 60 ˚C, 60 min dryer lint from ballast 6

Screening test - Part 3: Influence of tumble drying on material Wash set 1 Extra water, collecting Tumble drying of test 20 ˚C, 10 min dryer lint from ballast material Wash set 2 20 ˚C, 60 min Wash set 3 60 ˚C, 10 min Wash set 4 Extra water, collecting 60 ˚C, 60 min dryer lint from ballast 7

Results – Part 1: influence of Time and Temperature Fibre loss decreases with • Comparison time and temperature each wash (mg fibres/kg washed fabric) 300 Time and temperature • 250 may not affect fibre loss 200 in the first wash 150 In later washes the longer • 100 duration of the main 50 wash indicates a higher 0 fibre loss Wash 1 Wash 3 Wash 5 20.10 20.60 60.10 60.60 8

Results - Part 2: Influence of Extra Water Comparison 20 ˚C Comparison 60 ˚C (mg fibres/kg washed fabric) (mg fibres/kg washed fabric) 500 500 400 400 20.10.EW 60.10 300 300 20.10 60.60.EW 200 200 20.60 60.60 100 100 0 0 Wash 1 Wash 3 Wash 5 Wash 1 Wash 3 Wash 5 Higher water levels increase fibres in effluent, most apparent in the first wash • How relevant is the first wash? • 9

Results – Part 3: Influence of Tumble drying on material Comparison 20°C, 10 minute wash time (mg fibres/kg washed fabric) Tumble drying prior to washing 800 • does not largely influence fibre 700 loss 600 500 Tumble drying after washing • 400 decreases fibre loss in the next 300 wash 200 Recommendation for consumers 100 • to tumble dry instead of hang 0 dry ? Wash 1 Hang Wash 1 Tumble Wash 3 Hang Wash 3 Tumble Wash 5 Hang Wash 5 Tumble dried dried test spec. dried dried test spec. dried dried test spec. Fibres in water Dryer lint from ballast Dryerlint from test spec. Dryerlint from test spec. prior to washing 10

Thank you for your attention! 11 RISE-Research Institutes of Sweden AB • 010-516 50 00 • info@ri.se • ri.se