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I line dry my cloths and every now, they become rough after drying. This mostly happens with socks. They are regular cotton socks and once I start to wear them they become soft again. Any idea why this is happening?

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  • $\begingroup$ I'm not sure it's appropriate site for this question. $\endgroup$ – Mithoron Jul 21 '15 at 19:50
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I believe it is down to water relaxing the fibres in the material. Upon drying in one position the fibres become temporarily fixed in that position. I have also read that the detergents used in washing can cause clothes to dry stiffer. A little experiment such as soaking your clothes in hot water should kill bacteria and then see if they dry stiff. This would give an idea as to whether or not its down to the detergent or just the water.

Interestingly, a recent study suggests that fabric softeners reduce the wettability of materials. So if you use fabric softener on your towels, over time they will become less effective at drying (being towels).

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