The alpaca hat I knitted previously was a little big, mainly because I didn’t knit a proper tension swatch before starting (tsk! tsk!).
So I thought I’d use it as a guinea pig to try felting in the washing machine. I stuffed it into one leg of a pair of old tights, and put it in the machine with a normal washload (mixed coloured, 40C).
The result? The hat didn’t shrink as much as I expected – it’s only marginally smaller than the original. The alpaca (from Toft) has gone quite fuzzy, but you can still see the texture of the stitches, but the rose, knitted in Rowan Cashsoft DK (57% extra fine merino, 33% acrylic microfibre, 10% cashmere) looks entirely untouched. The green leaf, in Debbie Bliss Donegal Luxury Tweed Aran (85% wool, 15% angora), looks slightly felted but is nowhere near as fuzzy as the alpaca.
After the experiment, I picked up Gina Wilde’s inspiring book, Shibori Knits: The Art of Exquisite Felted Knits, in which the author cautions against using all-wool fibres for felting, as they tend to get very fuzzy. “Fuzziness may be your personal aesthetic,” she writes, “but it is not the aesthetic for which these [shibori] designs are written. The fuzzy yarns hide the subtleties shibori provides.”
Even though this wasn’t a shibori knit, her point about fuzziness is well taken. For nuno, it’s obviously easier to felt all-wool fibres and yarns – you can get subtlety in the texture by adding small amounts of non-wool fabrics and yarns, and through shrinkage. But for knitted items, it’s better to use yarns that aren’t all wool, mohair or alpaca if you want to avoid fuzz.