These specialized needles are designed with a rounded tip, unlike the sharp point of universal needles. This rounded point pushes between the fabric’s knit loops rather than piercing them, preventing damage, skipped stitches, and runs in knitted fabrics like jersey, interlock, rib knit, and double knit. A standard sharp needle can cut the fibers in these fabrics leading to unsightly holes and weakened seams.
The gentle action of the rounded tip makes these needles essential for preserving the integrity and elasticity of knit materials. Their use significantly improves the quality and durability of seams in projects involving stretch fabrics. While universal needles remain suitable for woven fabrics, the development of this specific needle type marked a significant advancement in sewing technology, allowing for the effective construction of garments and other items from the increasingly popular knit fabrics.