you could crochet a mesh of sc and tripple c, like a brickwall (offset by rounds) and weave Icord (I would consider a knitting dolly for making so much).
Or do you want a long cord that is not (visibly) held?
Try big whales of stochinette stitch and reversed stochinette stitch. Maybe that will be enough spiral action?
round 1 knit
round 2 purl
round 3 purl
round 4 knit
round 5 like 1 and so on.
Or knit a band, maybe 10 stitches wide, that you sew up (and maybe shape by short rows to give it a "spin" towards the spiral?) I mean like the peel of an apple when you cut it in one, you know?