The Lonely Planet Guide quite rightly states that "it used to be possible to see yazmalar being made ..." here. I think that's what one calls calico, wood-printed cloth. I saw it years ago, and was overwhelmed by the beauty of the han, the many pieces of half-printed cloth everywhere, the stains all over the place in a feast of colours and the obvious pride of the workers. I have put the pictures I then took (from slides) here. At any rate, the guide continuous "in an astonishingly short-sighted move the han has been closed down and the yazma-makers relocated to the outskirts of town."
I agree. These things happen all over the country, and as for the working conditions, health and safety regulations and pure efficiency I think the moves are wise. But the loss of pleasure at seeing these sites is enormous. Well, see them if and while you still can. Take pictures, keep them.