B1 abstract a loop component for a hook and loop fastener includes a knit fabric and a plurality of loops extending along one surface of the fabric and made of a monofilament pile yarn such as nylon the component is knit on a three or more bar machine with one bar forming the base and two or more additional bars forming floats which are then pulled out of the knit fabric by napping to obtain a fabric having a predetermined thickness the fabric is then heat sense to stabilize is dimensions stiffness and other physical properties application_number US 56870400 A description the present invention presents a hook and loop fastener with the loop component having a new and improved loop structure with a superior performance and outstanding stability through its useful life the fastener incorporating the improved loop structure is preferably designed for specific industrial applications such as footwear upholstery safety devices health care equipment sports equipment geriatric apparatus hospital and other medical devices automotive devices and so on the fastener is made of light yarns and provides excellent performance based on its specific weight more specifically a hook and loop fastener constructed in accordance with this invention includes an improved loop component comprising a base fabric formed of a warp knit from nylon or similar threads and having a raised pile made of a monofilament yarn said pile defining the loops for the fastener first referring to fig1 prior art loop components for hook and loop fasteners were knitted using only two bars 10 12 moreover in the prior art the front or pile bar 10 was moved over only four needle spaces as indicated in the present invention a three bar knitting process is used see fig2 i e a loop component.