Absorbency Tests

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Dunners
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Absorbency Tests

Post by Dunners » Fri Nov 25, 2005 6:33 pm

Well today I spent a couple of hours turning my lab into a laundry!

I only tested each item once, and to be a proper scientific experiment I should have at least 3 lots of results to average. Going by how long it has taken me to do this much, I'm not going to wait to post results until I've done 2 more!

My general method:
1. Weight item (dry)
2. Soak in a trough of water for 10-15 minutes, giving it a bit of a squeeze
3. Hang up and allow it to drip dry (I helped it along a bit with a bit of squeezing)
4. After 15 minutes of no more dripping I reweighed (this is the max recording)
5. Then I gave it a really good wring and reweighed (this is the wrung recording)

Notes:
* 1 mL of water has a mass of 1 g.
* I've done both readings as some felt too soggy, so I'm not sure how accurate the max reading is IYKWIM (might have been too drippy still).
* I've rounded the results to the nearest 5mL
* I had the most difficulty with the microfibre items as they do hold a lot, but "lose it" easily too - I had trouble figuring what amount of sogginess would hold IYKWIM.

Fitted Nappies: (wrung-max)
Snazzipants cotton size 1: 185 - 215 mL
Tots Bots size 1: 240 - 265 mL
Nap-Nap: 170 - 190 mL
Zappy Nappy: 180 - 210 mL
Funky Bumz semifold: 250 - 280 mL

Nappies (wrung-max)
Flanny flat: 145-220 mL
Towelling flat: 185 - 260 mL
Muslin (chinese nappies off TM): 115 - 145 mL
Toddler prefold: 190 - 260 mL
Regular prefold: 180 - 220 mL
Infant prefold: 100 - 135 mL
Homemade hemp flat (regular size): 200-230 mL

Inserts and Doublers (wrung-max)
Fuzzi Bunz Insert: 95 - 150 mL
Fuzzi Bunz Doubler: 40 - 65 mL
Snazzipants Doubler (fleece topped): 55 - 75 mL
Tots Bots Doubler (fleece topped): 65 - 80 mL
Zappy Nappy Doubler: 60 - 80 mL
Nap-Nap Booster: 40 - 65 mL

Fabrics (Percentage of weight absorbed)
Natural Sherpa (from GreenBeans): about 250%
Kilington Flannel (from GreenBeans): about 250%
Microfibre (from GreenBeans): about 220 % (see note above - difficult to measure)
Hemp Fleece: about 165%
Hemp Jersey: about 155%
(I'm surprised the hemp values are different)

More to come when I get a chance to sort out bits to test.
Last edited by Dunners on Sun Nov 26, 2006 9:45 am, edited 1 time in total.
Leanne
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Claire
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Post by Claire » Fri Nov 25, 2005 7:00 pm

what great work Leanne!!!!!
well done .... interesting results
Prefolds did well, I personally LOVVE my prefolds

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Judy
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Post by Judy » Fri Nov 25, 2005 7:11 pm

Yep, same comments as Claire - must be why I love using my prefolds as stuffers, and also why I was pretty impressed with the performance of folded flats as stuffers while on holiday recently.
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Post by k8ylou » Fri Nov 25, 2005 9:11 pm

You are truely dedicated to the cause Leanne!

Thank you.

and when I can read it properly tomorrow I might understand it a bit better. :D

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Joelypockets
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Post by Joelypockets » Sat Nov 26, 2005 7:50 am

:D Very interesting results, particularly comparing hemp to microfibre (I like both). It would be interesting to see how BKT compared!
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Kaz
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Post by Kaz » Sat Nov 26, 2005 8:28 am

Thanks for the great work!!!!

Will be looking forward to the 'official' results :lol:

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garbanzo bean
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Post by garbanzo bean » Sat Nov 26, 2005 9:22 am

sounds like you're having fun there!
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Robin
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Post by Robin » Thu Dec 08, 2005 9:38 pm

Sorry, I'm a bit slow to post here, but I keep thinking about your test of various fabrics. The natural sherpa absorbed about 250% of its weight and hemp fleece about 165%. So how do these 2 materials compare in terms of weight and thickness? I'm trying to get at which would be a thinner insert if they are both absorbed say 75ml. Does that make any sense? I'm having trouble getting my thoughts into words tonight. Sorry.
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Dunners
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Post by Dunners » Sun Nov 26, 2006 9:44 am

:lol: Oh dear Robin - I totally missed your question. Do you still need me to answer?

I've just been doing more very crude tests of stuffers, far less scientific with just using a measuring cup and pouring liquid on. Shall add info here for my reference... (All well used except those indicated new)

Insert * Pour to almost dripping (mL) * Wrung out a little (mL)

Fuzzibunz microfibre insert * 200 * 125
Cotton babies microfibre insert (brand new) * 250 * 120
Nurtured family microfibre insert * 250 * 130

Muslin flat (Chinese nappies from TM) * 180 * 130
Top quality flanny flat * 250 * 180
Thinner quality flanny flat * 250 * 180
Regular bleached prefold * 270 * 200
Toddler unbleached prefold * 350 * 270
Terry flat * 350 * 250

Homemade 2 layer hemp insert (reg prefold size) * 280 * 230
Homemade small BKT/Hemp insert * 250 * 180
Homemade 2 layer hemp booster (mf insert size) * 100 * 60
Homemade 2 layer cotton fleece booster (mf insert size) * 100 * 60
Homemade BKT/hemp contour insert (new but prewashed) * 250 * 180
Homemade regular prefold (with a cotton knit) * 250 * 210

Now to compare with the items I checked yonks ago by weighing...

Please feel free to add your absorbency tests to this thread!
Leanne
Mum to 3 beautiful children
Image Small and Large pocket patterns available, for a small donation to Unicef. DIY kits also available for $5 each with free pattern. PM or email me for more info...

Dunners
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Post by Dunners » Sun Nov 26, 2006 9:48 am

:lol: I've just noticed (when I made this thread a sticky) that I last did absorbency tests 1 year ago, almost to the day :lol: Scary!

(The reason I've just done all these tests is because my friend is having problems with leaky sposies at night on her 3 week old, so I'm trying to figure out the best fabrics for inserts for her new pockets)

Oh, and I'll make some bamboo inserts sometime and do a bamboo test...
Leanne
Mum to 3 beautiful children
Image Small and Large pocket patterns available, for a small donation to Unicef. DIY kits also available for $5 each with free pattern. PM or email me for more info...

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