Vbed technical fabrics

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In v-bed weft knitting, the Stoll approach emphasises made-to-measure quick prefabrication of complex two- or three-dimensionally shaped articles (Figures 30.6 and

Tube Weft Knits Stoll
  1. 30.6 Tube connection with rectangular cross-section [Stoll, from Knitting Technique,
  2. 13 (1991), 2,124].
  3. 30.6 Tube connection with rectangular cross-section [Stoll, from Knitting Technique,
  4. 13 (1991), 2,124].

Fig. 30.7 Funnel-shaped tube connection in Kevlar [Stoll, from Knitting Technique, Vol. 13

Fig. 30.7 Funnel-shaped tube connection in Kevlar [Stoll, from Knitting Technique, Vol. 13

30.7), including the knitting of a wide range of materials such as metals in fibre or filament form. Examples of end-uses include upholstery for office furniture, one-piece seat-heating circuits, helmets, catalytic converters, pressure tanks made of composite materials, and support bandages that are knitted to size and shape [12,13].

There is no doubt that when used as a type of reinforced material, weft knitted fabrics have their disadvantage in mechanical properties (low resistance and modulus) due to the loop construction used, but in cases where elasticity, flexibility and high energy absorption are required, weft knitted fabrics have their advantages.

Compared with other techniques that have been used for the production of 3D fabrics, the advantages of flat knitting are as follows:

  • It is a flexible manufacturing process.
  • The change of fabric structures and forms is very fast.
  • The change of yarn types in the same structure is also possible.
  • Possibility of knitting to shape without cutting waste or making-up time.
  • Complicated shapes can be developed [14,15].

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