Part 01 | Carding Introduction | | Part 02 | Carding Action Part 03 |Card Clothing | Types of card clothing | | Part 04 | Auto Leveling in Carding Part 05 | Measuring Devices in Carding | | Part 06 | Characteristics of Card Sliver Carding Action | Difference Among Carding Actions Carding: Carding is a mechanical process that […]
Short staple spinning – 1
Carding Introduction | Part 01
Part 01 | Carding Introduction | | Part 02 | Carding Action Part 03 |Card Clothing | Types of card clothing | | Part 04 | Auto Leveling in Carding Part 05 | Measuring Devices in Carding | | Part 06 | Characteristics of Card Sliver Carding | Types & Parts of Carding Machine | Working Principle of Carding Machine Carding: […]
Blowroom | Basic Functions of Blowroom | Basic Operations in the Blowroom
Blowroom | Basic Functions of Blowroom | Basic Operations in the Blowroom Introduction Blow room is the first step of yarn production in spinning mills. A section in which compressed bales are opened, cleaned and blending or mixing to form uniforms lap of specific length is called Blow room section. The cleaning efficiency of blow […]
Air Jet Spinning
Air Jet Spinning Air Jet Spun Yarn 1 . The air-jet spun yarn is fascinated yarn consisting of a core of parallel fibers held together by wrapper fibers. 2 . The structure of air-jet spun yarn is essentially that of comparatively straight central core of fibers held together by taut surface fibers wound onto the […]
Drawing Of Synthetic Fibres
Drawing Of Synthetic Fibres Introduction: With the exception of silk , all the filaments are manufactured from man-made materials . silk is a natural filament. The man-made materials are primarily made from chemicals that must be formed and solidified into fibre form. The fibre forming polymers are normally solids and therefore must be first […]
Speed Frame Production Calculation
Math 1: Calculate the TPI (twist per inch) produced on a simplex with diameter of front roller 28 mm and its rpm be 30. The rpm of flyer is 1000.
Twisting and Amounts of Twist for Different Materials – why is the amount of twist in a yarn important
The roving coming out of the front delivery roller is threaded through the top of the flyer, passes through its hollow leg around the presser arm on to the bobbin. The purpose of providing twist in roving is to give the strand sufficient strength to withstand the strain during unwinding in the creel of the ring frame. The insertion of twist is achieved by the rotation of the flyer.
Speed Frame and function of speed frame
The output from the draw frame is fed into the roving frame (also called ‘speed frame or simplex machine or flyer frame‘) where the linear density of sliver is reduced by drafting and the resultant product is called the roving. After the drafting operation, the roving is wound on the bobbin. During winding, a little amount of twist is imparted to the roving.