These needles, designated by the code 14/90, are designed for medium-weight woven fabrics. The first number, 14, refers to the needle’s diameter (with larger numbers indicating thicker needles). The second number, 90, denotes the European metric sizing system, also indicating diameter but on a different scale. A 14/90 needle balances sharpness for piercing threads cleanly with strength to avoid bending or breaking under pressure. This specific type is commonly employed for projects using materials like denim, linen, and heavier cotton weaves.
The correct needle selection significantly impacts the quality of stitching and prevents damage to both fabric and machine. Using appropriately sized needles, like the 14/90 for its intended fabrics, ensures consistent stitch formation, minimizes skipped stitches, and reduces the risk of needle breakage or fabric puckering. Choosing the right needle for a particular project is a fundamental practice developed over the history of sewing, as needle technology advanced alongside fabric production techniques.
