The needle of system UY 130 GHS has a small ball point for working knit fabrics, without damaging the loops. It is used in industrial chainstitch and general-purpose sewing machines for everyday garment and textile manufacturing. Suitable machine classes are found, among others, at Union Special (classes LF, XF, 51300 BA, 51300 BDZ) and Dürkopp Adler (classes 371, 965).
Thinner needle sizes are used, among others, for medium-weight knit fabrics for everyday garment production, and the thicker versions for heavy, dense knit fabrics and technical knits. As sewing thread, a matching thickness is usually recommended depending on the needle size chosen, e.g. from Amann Serafil or Rasant; for very stretchy seams, a texturised thread also works well. The ball point glides between the loops instead of piercing them, keeping the seam clean and undamaged.
