抄録
As the first step toward the ultimate aim of producing a flatless high production card of a simple mechanism, the authors have explored the possibility of improving the cleaning efficiency of the lickerin. As a result, they have developed a carding engine of higher cleaning efficiency. One of its major features is that it has two lickerins, the second lickerin being located between the conventional lickerin and the cylinder. The second lickerin adjoins both the first lickerin and the cylinder.
The second lickerin is covered with a specially designed garnet wire, which is perforated for suction. It has in its interior a stationary vacuum box with its both ends connected to the suction part of the fan at the foot of the machine frame. The vacuum box is so placed that its opening always faces the point of contact of the first and second lickerins. The new carding engine is without the screen of the conventional lickerin. This gives a wide open space under the lickerin. The machine has an adjustable mote-knife of a special design.
Spinning tests have been made on 20's and 40's cotton yarns and on 10's cotton yarn produced from waste.
