From magazine (author is Amy Tyler):

Silk hankies are an important part of my fiber stash
because they require patience and tolerance, and they
make loveable, imperfect yarns that are a pleasure to
wear. Yarns spun from silk hankies have no elasticity;
they do not stretch. They do, however, make lovely,
drapey knitted fabric. These yarns can feel cool in
warm weather and warm in cool weather.
The color of the silk hankies and stitch pattern I
used inspired the name of the scarf. Can’t you just see
a storm brewing over wild water in Lake Superior?
Spinning Notes
I spun the singles for this project on my Reeves
castle wheel, using the smaller whorl (drive ratio of
8:1), drafting about 4 inches for every two treadles.
I then plied the singles on my Louet S10-DT, using
the smaller whorl (drive ratio of 10.5:1). I often spin
singles on my Reeves wheel and ply on my Louet
wheel. The Reeves is exceptionally good for adjusting
take-up tension, but has rather small bobbins. The
Louet has quite large bobbins, which comes in handy
when plying; I can always fit the singles from two
Reeves bobbins onto one Louet bobbin.
Although I typically strive for consistency in
thickness and twist in my handspun yarns, I am
quite nonchalant about these features when I spin
silk hankies. With other forms of silk, it is easy to
get a smooth yarn. Not so with silk hankies—there
will be slubs and nubs. Consistency is also more
difficult during predrafting and spinning, so I have
learned to love the variable nature of the yarn I make
with silk hankies.
I also accept variations in the amount of twist in
my singles and plying. One of the most remarkable
features of silk is that it is very forgiving of twist;
large variations in twist can still result in a balanced
and functional yarn. Because the fiber length in silk
hankies is so long, you can knit them with no twist,
low twist, medium twist, or high twist.