Any metallic coloured yarn 12 microns can be rounded on rayon or any other thread denier as per requirement.. They are produced by wrapping a metallic yarn around a core yarn.The metallic here fully covers a polyamide/nylon or polyester core yarn. These yarns or embroidery threads are specially made for use on modern multihead embroidery machines, where speed is an important factor. A special yarn lubricant is applied to these yarns. Supplied on cones of 250 gms net. Specifications Thicknesses 12 micron Width 1/64" Material used Pe= polyester, ny= nylon, ryrayon Packaging details 250 gram on cone (cone size : 6 inch high paper cone) Technical properties Ironing temp (max.) 135oc, 15 sec. Dry heat No change 180oc, 60 sec. Steaming No change 30 min. Boiling water No change 100oc, 1 hr Ethanol No change 25oc, 30 min. Trichloroethylene No change 25oc, 30m. Benzene No change 25oc, 30 min. Acetic acid (5%) No change 25oc, 30m. Applications From wide width weaving to narrow ribbons Military regalia Embroidery Braids Knitting Cords Ropes Twisting Trimmings Leavers lace surface liner gimp decoration 250 gram on cone (cone size : 6 inch high paper cone)