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5. Increase and decrease in the number of meshes
This process is used exclusively for pick-and-place knitting, and in particular for production on straight-set machines.
To start with, the knitting is carried out with a given number of needles in action. If the shape to be produced requires the knitted fabric to be widened, two solutions are possible. When this enlargement is small, it's possible to change the length of yarn in a stitch (known as the absorbed yarn length or AYL). This is what's applied, for example, to the upper part of socks, whose circumference varies between the ankle and the calf. In this case, the mechanical behavior of the knitted fabric varies as a function of the LFA
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Increase and decrease in the number of meshes
Reinforcing knitted 3D objects
Bibliography
Websites
MIT's Self Assembly Lab Active Textile Tayloring
https://vimeo.com/298407221?from=outro-embed
Saint Gobain Performance Plastics
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Flat knitting machines with pick stitches
Stoll http://www.stoll.com
Shima Seiki http://www.shimaseiki.com
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