@Bottersnike @hotel
Probably doesn't help, but the online eng<->jpn dictionary I tend to reference has:
浸透(P); 滲透 【しんとう】 (n,vs) (1) penetration (e.g. market); pervasion (e.g. thought, ideology); (2) permeation; soaking; osmosis; (P)
where (2) leans towards your translation just fine.
捕縄 【ほじょう】
![Thumbs down (n) (n)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
police-man's rope
so with jutsu, it makes it seem a bit more like "how to restrain someone after capturing them" and less "rope bondage"
dictionary used http://nihongo.monash.edu/cgi-bin/wwwjdic?1C
even more results if you swap it from the default "jpn-eng general" dictionary to "japanese wordnet", especially for 浸透