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To learn more about different types of thread breaks and how to prevent them, please click here for a video tutorial explaining this topic. Fraying is one of the four different types of thread breaks.
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However, when the thread shreds near the needle or has bunched up, it is referred to as “fraying”. Thread shredding can be the result of many different factors, including experiencing issues with the thread itself (the thread could be damaged or too old), the needle (improper insertion of the needle or the needle is too old and has bent), the bobbin (improper bobbin tension or bobbin is wound incorrectly), the tension (irregular tension on either top or bottom thread, causing the tension to be too tight or too loose), experiencing burrs located in needle or needle plate area, or even facing improper top threading (the thread could be skipping a point in the path that adds tension).
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