What Is “Stitch Density (SPI)”?
Introduction to SPI Meaning, Stitch Per Inch In garment manufacturing and textile production, stitch density—commonly referred to as SPI or stitches per inch—serves as a crucial indicator of seam quality and durability. Understanding SPI meaning, stitch per inch, is essential for designers, technicians, and quality control teams aiming to balance appearance, strength, and production efficiency. […]
