The Ring Spinning is the most widely used form of spinning machine due to significant advantages in comparison with the new spinning processes. The ring spinning machine is used in the textile industry to simultaneously twist staple fibres into yarn and then wind it onto bobbins for storage. The yarn loop rotating rapidly about a fixed axis generates a surface referred to as "balloon". Ring frame settings are chosen to reduce yarn hairiness and the risk of glazing or melting the fibre.
The ring spinning system is the oldest spinning system that remains dominant because of the high quality yarns it produces. Ring spinning has various advantages besides disadvantages.It is the most flexible system from the view points of fibres which can be used and the extent of the yarn counts which can be produced.
Blow room is the starting of the spinning operation where the fibre is opened, cleaned, mixed , micro dust removed and evened thus passed to carding machine without increasing fibre rupture, fibre neps , broken seed particles and without removing more good fibres. The basic functions of blow room are opening, cleaning, dust removal, blending and evenly feeding the material on the card.
Carding is a mechanical process that breaks up locks and unorganised clumps of fibre and then aligns the individual fibres so that they are more or less parallel with each other. Carding can also be used to create blends of different fibres or different colours. Carding plays a crucial role in all spinning cycles particularly in the woollen spinning cycle, in which it incorporates different functions, all essential in order to obtain the level of quality required of the product.
Carded Slivers are fed into the Draw-Frame and are stretched/Straightened and made in to a single sliver. Also fibre blending can be done at this stage. The cans that contain the sliver are placed along the draw-frame feeder rack, usually including eight pairs of cylinders (each pair is above the space occupied by a can),the lower cylinder is commanded positively, while the upper one rests on the lower one in order to ensure movement of the relative sliver that runs between the two.
The input of roving frame is silver that comes from draw frame section where only parallel of
comber sliver. In roving section reduce the linear density of draw frame silver by drafting. After
reducing the linear density the silver is transfer into roving (a thin form of rope). This is first
stage where twist is inserted for making a yarn in spinning mill. The output of this section is
roving which is wind on a bobbin and this is suitable for further process. Here in this section