ABSTRACT
The carding machine consists of cylinder, licker-in, doffer, flats, feed plate and feed roller, web-forming zone, calender rollers, coiler zone, and other auxiliary components (as seen in Figure 3.1). The main parts such as cylinder, licker-in, and doffer are clothed with rigid wire clothing, whereas flats and stripping rollers are clothed with flexible wire points. The licker-in facilitates better opening and cleaning, which runs at around 1100 rpm. The licker-in zone has a grid bar with a mote knife, which effectively removes the major trash present in the feed material. Some of the modern cards have three-licker-in systems, which are recommended for coarser cottons. The carding zone plays a predominant role in fiber individualization in which fibers are picked apart by the cylinder from flats. Stationary flats are employed in the entry and exit of cylinder to facilitate effective fiber opening. The function of the doffer is to deliver the fibrous web to the web-forming zone. The web is condensed in the web-forming zone and converted into sliver with the help of the coiler zone. The sliver then gets deposited in the can, which is required for the subsequent process.
