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Why Does Bonded Nylon Thread Fray During Sewing? Causes & Troubleshooting

NEXUS Tex90 bonded nylon thread showing visible fuzzing during double-needle sewing

Bonded nylon thread can develop visible surface fuzzing during sewing due to friction around the needle eye, needle-to-thread mismatch, hook interaction, material thickness, or thread lubrication conditions. However, fraying does not automatically mean the thread is defective. Surface fuzzing, ply separation, thread breakage, and skipped stitches are different problems that require different checks. Based on […]