Warp knitting connotes the knitting method where the yarn zigzags along the length of the fabric. So with warp knitting, one does technically not knit in rows but in columns. The consequence is that every needle is fed by a separate yarn whereas all the yarns will be kniited simulatenously. The contrary of warp knitting is weft knitting where one knits in rows (e.g. classical hand knitting belongs to weft knitting).
Warp knitted fabrics are relatively resistant to runs. Warp knitted fabrics can be divided into roughly three kinds: tricot, milanese knit and raschel knit whereas raschel knit can also be considered as a separate knitting technique due to its combination of knitting and weaving characteristics.
