following are the main objectives of mixing:
the main objectives of blow room are given below;
• To clean the fibres.
• To remove the dirt and dust from cotton fibres.
• To prepare the lap ( cotton sheet ) of the fibres.
The main objectives of mixing are the economy of production, the achievement of desired yarn quality and the improvement of yarn performance. In the mixing process, Two or more different varieties of cotton are mixed together. Sometimes two or more types of fibres such as cotton and polyester are mixed together in this process. The material is mixed and blended well to find the homogeneous mixture of material. The possibility of random effect is terminated almost. Even the effect of material throughout the whole yarn surface is achieved.
Standards requirements of blow room line assembly:
• minimum maintenance cost
Air - jet / vortex spinning method ( open end spinning process)
Rotor spinning method ( an open end spinning process)
Yarn count determination from fabric swatch or count determination from short length of yarn
New metric count ( Nm) an indirect yarn count system
Objectives of carding process