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For some, it is a mystery when, where and why bias cutting is used. And what is it anyway? Let's start with a brief explanation of this term. Bias cutting means cutting along the bias threads of the fabric. Those who sew already know that any piece of fabric has longitudinal and transverse threads. Warp threads are usually stable in most cases. Weft threads can also be stable or slightly stretchable. This depends on the type of fabric and its composition. If you take the fabric with both hands along the edge and try to stretch and loosen the material. Warp threads lie flat and under great tension during weaving, which prevents fabrics from deforming in the future. The tension of the transverse threads, the weft, is weaker, so they shrink less than the warp of the fabric. The fabric along the edge hardly stretches - this is the warp thread. If you tug the material along the cut line, it will be more elastic. There is also an oblique line - tension occurs along the diagonal of the interlacing of the threads. Here the fabric is the most stretchable and elastic. It is enough to remember how a scarf stretches, which is folded at an angle and tied around the neck..... Continuation here: https://armaliniblog.ru/kroj-po-kosoj/ I invite you to visit my site if you want to learn how to sew and cut clothes for yourself: https://armalini.com Comment on the video, ask questions, I will try to answer everyone. Subscribe to the author's mailing list: https://armaliniblog.ru/lending/yt/