Summary 3 washing/drying practices were associated with fewer reported smells (p<0.05). Higher temperature washes, hot tumble drying, more nappies in wash Hot tumble drying seems to help our respondents avoid rough nappies (p<0.05). Eco washes were associated with rough nappies. (p<0.05). A huge thank you to Emily Griffiths for designing the questionnaire and doing the … Continue reading Nappy Washing Survey – Provisional Results
Summary In our previous experiments, we got five nappies tested in a lab, and found that two of them were 20% by weight hydroxl apatite (HA), so we decided to get a few more nappies tested. This time around the nappies contained 1-5% minerals after the ash test. Some of this was Hydroxyl apatite, and … Continue reading Shirley Technologies Results
Summary Hydroxyapatite (HA) build up was confirmed on the real world nappy samples (same nappies as Shirley Technologies tested last year). Zinc was also found evenly distributed across Nappy D A laboratory method was developed to create HA mineral build up artificially. They used several solutions – all were water with different amounts of calcium … Continue reading Results from Cardiff Catalysis Institute (CCI)
Summary Most of the things we tested were around ph 6 or 7 (i.e. Neutral). We found a general trend for nappies to become more alkaline (pH greater than 7), the longer they were in the dry pail. We know that alkaline conditions promote the formation of Hydroxl Apatite (HA), so perhaps HA is forming … Continue reading pH Test Results
Back in May last year, the Nappy Science Gang citizen scientists decided we wanted to know what the best thing to wash cloth nappies was. Now, after many months designing experiments, testing detergents and many, many loads of washing, the results are finally in! Our gang of cloth nappy users wanted find scientific answers to … Continue reading The detergent question: the results!
An analysis of the results of further tests on nappies INOSW March 2016 This report follows on from the blog post which was published by Ellen Young on February 16th here and while some small repetition of her excellent work is inevitable I advise that you read her post prior to this in order … Continue reading Strip washing results – part 2
Following on from Part 1 of our investigation into how washing at different temperatures affects the lifetime of a nappy, this part of the experiment looks at how clean nappies get when washed at different temperatures (as well as few extra questions besides!) so we can get to the bottom of which washing temperature … Continue reading The Temperature Question: Which washing temperature is really best? (Part 2)
To strip wash, or not to strip wash? Or, more precisely, when exactly is a nappy in need of strip-washing? This is the question that we, the Nappy Science Gang citizen scientists, set out to answer, having found that despite the wealth of (often conflicting) advice on how and why to strip wash, nobody had … Continue reading The strip washing question: The results!
Back in May last year, the Nappy Science Gang citizen scientists decided they wanted to know what the best temperature to wash cloth nappies was. Now, after many months designing experiments, measuring nappies and many, many loads of washing, the results are finally in! The gang of cloth nappy users wanted find scientific answers to … Continue reading The Temperature Question: The results! (Part 1)
Saturday 6th February was a big day for Nappy Science Gang - we had the big reveal of our experiment results at the Science Museum in London and the Shirley Technology labs in Manchester. We exchanged results (and excitement - 'about to take a solo trip to an island resort level of excitement', no less) … Continue reading The big results reveal