Monthly Archive for August, 2009

Persistence of Detergent Residues

I think this research paper by Horiuchi Utako from Gunma University in Japan speaks for itself — the translation of the abstract isn’t perfect, but the meaning is perfectly clear:

1)  A lot of detergent remains in clothing even after excessive rinsing.

2)  A significant amount of those residues can migrate onto other surfaces that come into contact with the clothing, including skin.

The abstract is short and is well worth reading.  The interesting conclusion to Solveeczema users:  “wash the diapers for the babies with hypersensitivity using soaps in stead of synthetic detergents.”

The paper appears to have been published in 1983.

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Update on mattresses: Avoiding dust

Here’s an interesting development.  In a previous post, I wrote about our experience choosing a mattress that wouldn’t be an allergy source for this specific detergent problem.   In trying to find something that wouldn’t shed detergent-laden dust or introduce potential allergens such as latex, we chose an organic cotton mattress with a food-grade polyethylene dust-mite barrier from Naturepedic, on a solid maple platform bed from Pacific Rim.

With some months of experience behind us now, I have to add a wonderful observation.  Not only have we had no problems with detergent dust, we have had no problems with dust of any kind!  In my experience, the space under mattresses is a breeding ground for large dust bunnies.  Under this mattress, there have been no dust bunnies to speak of, and almost no dust at all.

I don’t know if the dust-mite barrier is entirely the reason, or if it is a combination of the barrier and the higher-than usual space under the bed (good air circulation) — but the rest of the room has remained quite low-dust as well, with no dust bunnies around the bed, either.

In contrast, the traditional mattress in the other room begets as many dust bunnies as ever, as I have come to expect is normal under a bed.

Quite apart from the allergy issue, it’s wonderful not to get those piles of dust under the mattress.  I never realized shedding from the mattress could be such a source — especially since we vacuum our traditional mattress every time we change the bedding.

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