The effect may be due to the weave structure, or the use of yarns with different shrinkage properties or both.
Normally the cockled appearance is achieved due to the use of high twisted yarns in one layer and low twised yarns in the other.
The highly twisted yarns form a net like construction through which the finely set structure composed of the low twist yarns is clearly visible.
The Open structure is achieved by the special arrangement of the threads which may be 3 low twist, 1 high twist in the warp and 4 low twist 1 high twist in the weft.
1. Insert plain weave on low twisted ends and picks
2. Insert plain weave on high twisted ends and picks
