coils

Wooden bobbins are used in weaving to wind yarn, which is then inserted into a shuttle or another weft-insertion device. Yarn winding: The yarn must be wound onto the bobbin evenly and with appropriate tension to prevent tangling or excessive tightness, which could lead to thread breakage. During winding, a rotational movement of the bobbin is combined with a transverse movement of the yarn along its surface. This creates a cross-wound pattern that remains stable during unwinding.