... strengh,bright,no knots...) Polyester thread/100% spun polyester sewing /embroidery thread Quality Approved: ISO9001 Material : Polyester staple fiber 1 ... no knots ,bright,less broken ends ,low-elongation, well sewing function. In addition ,we use the raw material of ... polyester staple fibre ,so the sewing thread looks like more bright. Application: High speed sewing garment,curtain,glove ,cap,bedsheet ...