Learning Nugget: LN 027
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Material Damage and Needle Selection
What this module covers Material damage is what happens to the fabric and to the thread while a product is being made. LN-027 covers five mechanisms and how to tell them apart: a needle that cuts instead of displacing, a needle that runs hot enough to melt thermoplastic fibres, friction that opens the fibre surface, a seam structure that fails without any fibre being destroyed, and damage that is created in production but only becomes visible after washing. It adds the needle decisions behind most of them — size in Nm, cloth point against cutting point, needle condition and the…