Primary Backing Cloth Fabric for Hand Tufting.
An even weave of 70 ends and 70 picksfrom spun polyester yarn singles 5.6 Nm in warp and weft. Stripes in both warp and weft at 50 cm intervals. Tuck in selvedges. 266 grams per square metre. Developed for the Hofmann VML16 tufting gun and suitable for all tufting guns with similar needle size of 6 mm
266grams per sq metre = 70/70 = 70 threads per 4 inches both in the vertical and horizontal