Warp knitting technology

The production of technical textiles is an expanding market. New production methods have also been developed for technical textiles rather than the classical production methods. It is now possible to produce a very wide spectrum of bric structures in warp knitting technology. 

Warp knitting technology is the most commonly used technology for the production of spacer fabrics. Warp-knitted spacer fabrics have attracted great attention due to their low cost, high productivity and wide structure variations compared to other kinds of spacer fabrics. The critical characteristic distinguishing warp-knitted spacer fabrics... 

DOSs are unique multiply fabrics (Au, 2011). In these sfructures, straight ends of absolutely parallel and noncrimped yams are inserted into the stmctures at different angles (Raz, 1988). With these techniques, fabric properties can be engineered to enhance the in-plane properties only in the required orientations, thereby offering the produced fabric the ideal combination of excellent mechanical properties and cost-effective production. DOSs normally include mono-, bi-, tri-, and multiaxial stmctures, which can be produced with weft knitting or warp knitting technologies. 

Actually, elastomeric knitted fabrics account for the highest proportion of commercial sportswear. The knitting technology involves warp knitting and circular knitting. The former relates to tricot, raschel, and double-needle-bar raschel the latter involves single knit, interlock, double knit, and rib knits. 

G Wu Du, F Ko, Analysis of Multiaxial Warp-Knit Preforms For Composite Reinforcement , Composites Science and Technology, 1996 56. 

Thermal insulation can also be made of spacer technology, which ensures the inclusion of air. The flame-retardant protective effect not only improves comfort but also saves the lives of firefighters in extreme cases. According to statistics of the National Fire Protection Association, more than half of fatal firefighter accidents are a result of heat stress. Warp-knitted spacer fabrics prevent this effect due to their good insulation, compared to existing lining materials, such as foams (Heide, 2001). 

Flat Knit Fabric n (1) A fabric made on a flat-knitting machine, as distinguished from tubular fabrics made on a circular-knitting machine. While tricot and mil-anese warp-knit fabrics (non-run) are knit in flat form, the trade uses the term flat-knit fabric to refer to weft-knits fabrics made on a flat machine, rather than warp-knit fabrics. (2) A term used in the underwear trade for plain stitch fabrics made on a circular-knitting machine. These fabrics have a flat surface and are often called flat-knit fabrics to differentiate them from ribbed-knit or Swiss rib fabrics. In this case, the term refers to the texture, not the type of machine on which the fabric was knit (Kadolph SJJ, Langford AL (2001) Textiles. Pearson Education, New York Vincenti R (ed) (1994) Elsevier s textile dictionary. Elsevier Science and Technology Books, New York). 

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