Hey foobar,
I can't comment on employment prospects, but there is a "Swiss Textile College", with locations in St. Gallen, Wattwil and Zürich.
I don't know much about it (only know about it as I've often walked past the one in Zürich, between the swimming areas on the Letten river), but found their website if it's any use:
http://www.textilfachschule.ch
also a pdf brochure for them on a different site
here.
and an article in english about them
here.
Another website (in English!) that might have some information you're looking for is here:
http://www.swisstextiles.ch/index.html?client_locale=en
cheers,
jot