4. Variation in number of meshes per meshes put on hold

This process is used exclusively for pick-and-place knitting, and in particular for production on straight-set machines.

Stacking involves knitting more stitches with some needles than with others. This localized addition of material makes it possible to obtain a variety of shapes. While this principle has long been known in hand knitting for the production of socks, caps, berets, etc., it is much more recent in industrial applications. In fact, as stated in paragraph 1.1