I was curious myself, so I'd think resist printing such as [0] Katazome or [1] Rōketsuzome, using wax wheels. I feel like shibori would be tough for pattern accuracy but considering the craftsmanship I wouldn't be surprised to be wrong.

[0] https://en.wikipedia.org/wiki/Katazome [1] https://en.wikipedia.org/wiki/R%C5%8Dketsuzome

I have a very similar tattered thread-bound book of these style of kimono patterns at home but I don't think they're from Hokusai.