I'd like to add a general note to all readers regarding laundering.
Fabric softeners will make diapers, towels, etc., more water repellent, and they won't work as well.
Plus they will be toxic, not only for the user but for those nearby. I have to leave the vicinity when someone enters wearing "soft" clothing, because I have trouble breathing, get headaches, and become jumpy and forgetful. Then my sleep can be seriously disturbed for the next couple of nights.
Half a cup of white vinegar added to the wash cycle works both to soften fabric and clean it of the oily coating that can make it more water-repellent. (Do NOT use in the same wash as chlorine bleach, though – this can cause the release toxic fumes.)
If you google "fabric softener toxic" or similar tag words, you'll find thousands of entries. Here's one well-written one:
http://www.therenewableplanet.com/blogs/the_daily_green/a...