Flat weaving is weaving in which the warp and weft yarns are visible 50:50 at both top and bottom side of the fabric. It is a very old technique and many variants exist (ยง7.4.2).
The yarns used to weave textiles can be based on natural material, such as wool, flax, cotton, hemp or silk, or on man-made fibres, such as artificial silk, nylon (polyamide), polyester, acrylic, aramid or elastane.
Mixed fabrics consist of a combination of two or more of these fibres.