The card cloth is a kind of covering of various carding machine parts with needles or teeth on the surface. It is one of the important machine parts for spinning. It is used for carding fibers, and can also be used for loosening and impurity removal. It can be divided into elastic card clothing and rigid card clothing. Elastic card clothing is made of base cloth and many carding needles planted on it. Hard needle clothing includes a needle board with steel needles planted on the board and a metal needle clothing similar to a saw blade. According to the processing requirements of spinning raw materials, different types and specifications of card clothing can be selected.

1、 Elastic card clothing

Elastic card clothing is mainly used on woolen carding machines, carding machines, circular carding machines and some carding machines. The flat card clothing on the carding machine mostly adopts special sheet elastic card clothing. It is easy to fill fibers between elastic card clothing needles and reduce carding efficiency. It is necessary to use needle copying tools to copy the filled fibers regularly, which is called needle copying. The needle tip will become blunt after being used for a long time. It needs to be regularly sharpened with a grinding roller, which is called needle grinding. The operation of covering various kinds of card clothing on the carding machine is called covering card clothing. The use and maintenance of card clothing requires corresponding auxiliary equipment and tools.

2、 Metal needle cloth

Also known as metal saw blade, its needle tooth and base are integrated, and its structure is simple. The large tooth tip is like a zigzag shape, and the small one is like a fine needle shape. The density is higher than that of the elastic needle cloth, but the tooth depth is shallow. It has strong spinnability and wide application range. The material of metal card clothing is high-quality carbon steel or low alloy steel.

During the carding process, the metal card clothing rack does not extend or deform, and the design angles do not change, and it can withstand large carding force and centrifugal force, and can adopt the tight gauge strong carding process, which creates a unique condition for the high-speed, high yield and high quality of the carding machine; The metal card clothing has many variable parameters of tooth shape and specification, which is easy to adapt to the requirements of various fibers and spinning processes, and has good spinnability; The sinking resistance and rising force caused by the tooth shape of the metal card clothing on the fiber during the carding process can effectively prevent the fiber from filling and improve the carding efficiency; During the carding process of metal card clothing, no matter how the carding force changes, the balance of the fiber on the needle teeth is not easy to be damaged, the fiber is not easy to sink or slip, and the tooth depth is small, so the metal card clothing has fewer fiber layers, light load, and strong fiber alternation, which is conducive to improving product quality, improving the yield and saving raw cotton; The needle teeth are not deformed during carding, which is beneficial to improve carding degree; Long cycle of needle copying and grinding; Metal card clothing not only has good carding performance, high efficiency and good product quality, but also can increase the output of the carding machine by multiple or even 20 times, which is the greatest advantage of metal card clothing.

Due to the unique advantages of metal card clothing, with the development of high-yield carding machines and the renovation of old carding machines, metal card clothing gradually replaces elastic card clothing, with the proportion increasing year by year, and elastic card clothing will have the trend of being completely eliminated.