I would guess no. It takes good quality linen thread in the first place to make a good bow string, some linen threads are weak and will only make big fat strings, and will then still be prone to breaking. (I experimented with some so called "100% linen thread" from michaels one time,

) Using the cloth, you might be able to make a bow
rope, but not a bow
string. If you are looking for bow string locally, I have heard tell from sleek on here that spiderwire (I think it's called) works good, it's a fishing line.