The tufting process using Yuzhimu non-woven fabric.

Equipment for the production of needle-stitching carpet works on a principle similar to that of a sewing machine, but differs from the latter in the number of needles that are located next to each other. Each individual needle threads the thread through the primary warp. On the wrong side, it is picked up by a hook, which forms separate loops, forming, in turn, a looped pile. A sharp blade can also be mounted on the hook, which cuts the loop after forming, creating a trimmed pile. It is also possible to create combined types of coating with sheared and looped pile at the same time. The pile thread cloth is fixed with a thin layer of latex (rubber) to prevent blooming, and then a secondary base can be applied to it. The main indicator of this type of carpet is the weight of the pile, which directly depends on the class of the machine (the distance between the needles), the number of stitches per unit area (carpet density), the type of yarn used, and the height of the pile. The popularity of tufted carpet production technology is explained by the wide variety of designs that can be made with it. Modern equipment with moving needle grilles, as well as the use of various patterns, allows you to change the height of the pile, creating new types of carpets.

The technology for the production of needle-punched carpets is somewhat different from the previous one. For the manufacture of such a carpet, special needles without ears are used, but with notches along the entire length of the needle. As the needles move up and down, the filament fibers are trapped and entangled with each other, forming a compact fiber that retains its shape through friction. First, the basis of the future canvas is created, which is an unrelated pieces of fibers (staple) about ten centimeters long. The staple is evenly distributed across the entire width of the moving conveyor. The conveyor moves them to a node where one layer is superimposed on another, forming a denser material. Between these two layers, a canvas is laid, which is subsequently stitched. The three-layer coating then enters the machine, where it is passed between the two plates. The lower plate does not move, but holes are punched in it, the location of which corresponds to the location of the serrated needles on the moving upper plate. Passing between the layers, the needles pierce the material, grab the fibers and drag them through the canvas.