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Sunday, March 1, 2020
RING FRAME PROCESS AND OBJECTIVES OF RING FRAME PROCESS
RING FRAME PROCESS:
The ring frame process is the last and the most important process in the yarn manufacturing process. “The machine which converts the roving into desired yarn count is called ring frame”. It is the most commonly used method in the yarn manufacturing process. The final yarn of the required count gets spun on the ring frame machine. The roving obtained from simplex machine gets used as input material in the ring frame process. Three actions (drafting, twisting and package formation) are performed simultaneously and continuously in the ring frame process. The material is drafted so many times of its length according to yarn count to be spun. After drafting, a required amount of twist is inserted to the fibres strand to hold the fibres together strongly. Now this yarn gets wound onto the ring bobbin. These ring bobbins have very low amount of yarn on them, so that yarn from these bobbins is transferred on the large package which is called the cone, cheese or spool. This machine is suitable to spun cotton, synthetic and many other fibres efficiently. The widest range of yarn count can be spun on the ring frame. The yarn produced on the ring frame machine has very good tensile strength, elongation percentage, yarn evenness and hairiness properties. The ring-spun yarn is more expensive than the open-end yarn.
THE OBJECT OF RING FRAME PROCESS:
The main objectives of the ring frame process are given below:
•To draft the roving up to the required level according to the yarn count to be spun.
•To insert the required amount of twist to the fibres strand to hold the fibres together in the yarn and to prevent the fibres slippage in the yarn too.
• To wind the yarn onto the ring bobbin simultaneously during spinning.
•To spin the desired count of yarn finally.
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