Fire drill

Fire drill exercise

What is a fire drill?   The fire drill alarm will be activated exactly at the decided time and all people will rush towards the described assembly area through the exit doors. At the fire drill assembly area, the trainer from the fire fighting team guided all the employees to stand in the lane of … Read more

Diode

rectification

Diode dynamics A diode is divided into the following types Zener diode Tunnel diode Varactor PIN diode Schottky diode Step recovery diode Thermistors L.E.D ( Light Emitting diodes) Avalanche photodiode Zener diode Zener diode is reverse biased, heavily doped. It can be used as voltage regulation a peak clipper, and power protection of meters in different … Read more

Transistor

base characteristics

What is Transistor What is transistor ? Transistor is the combination of two words in meaning transfer and resistance. It consists of two back-to-back P-N junctions manufactured in a single piece of semiconductor crystal. A transistor is simply a sandwich of one type of semiconductor material between two layers of other. They are two types. … Read more

Electronics

Semiconductor/electronic/diode

Electronic city The study, design, and use of devices that depend on the conduction of electricity through a vacuum, gas, or semiconductor material are called the definition of electronics. What are conductors The solid materials which conduct electric current easily are called conductors. Conductors have plenty of free electrons and are easily available for electric … Read more

Ring spinning

Ring spinning

Ring frame calculation Ring spinning has two types: normal or non-compact spinning, and compact spinning also called elite spinning system. An Elite Spinning System or compact spinning with ring spinning uses a suction drum as a yarn spinning and handling mechanism component. Here’s how it generally functions: 1. Waste Removal and Yarn Quality: The suction … Read more

Warp knitting machines

warp knitting machines

Warp knitting machines can be classified into different types depending on machine types. Tricot warp knitting The face has fine lengthwise ribs; the reverse has crosswise ribs.  Complex patterns can produce on some machines, and for added texture or color some can incorporate a weft insertion (extra yarn inserted crosswise). Tricot warp knitting uses two … Read more

Warp Knitting

needle and guide bars

Warp knitting Warp knitting is different from weft knitting in the sense that every needle loops its own thread. Machine needles produce parallel rows of loops interlocked in a zigzag pattern, which is called warp knitting. The stitches on the front side of the fabrics appear vertically having a slight angle. The stitches on the … Read more

Moisture in textiles

Moisture in textiles

All textile materials are less or more hygroscopic and have moisture relations in textiles. Also, they contain a certain amount of moisture which depends upon the relative humidity of the surrounding air atmosphere. They will absorb moisture, in a damp condition and they will give up moisture in a dry atmosphere. Therefore it follows that … Read more

An ideal line for processing cotton

cotton carding

An ideal line for processing short-staple cotton An ideal line for processing cotton or Erection for the new blow room line basic setting is 1- Bale opening and  mixing Blendomate/unifloc/autoplucker 2- Coarse opening and cleaning Uniclean/ maxi flow/CLP 3- Fibre mixing MXI/MPM/unimix (8-chamber multimixer) 4- Fine opening/Cleaning Uniflex/CLC3/CLU 5- Contamination sorting Jossi magic eye 2/Sp-FPU/TS-T5/loptex … Read more

Structure/properties of wool

structure/Properties of wool

The structure of wool In the structure/properties of wool, first, discuss the structure of the fibre. The cross-section of fibre consists of the following three parts. 1-Cuticle Firstly, it is an outermost layer of wool fibre and is composed of flattering cells called scales. Also, each cell consists of an endocuticle and exocuticle and a … Read more