What is the yarn spinning process? In a word, the process of producing yarn from the fiber is called the spinning process. The process of making yarn through the drafting, twisting, and winding of cotton is called the yarn spinning process.
The spinning process is mainly divided into two parts:
A) Ring spinning process.
B) Rotor spinning process.
The following are some of the machines used in the spinning process:
1) Hopper Bell Breaker.
2) Double hopper feeder.
3) Automatic blender.
4) Carding machine.
5) Combing machine.
6) Drawframe machine.
6) Simplex machine.
6) Ringframe machine.
9) Rotor spinning machine.
Twisting is the process of increasing the strength of a sliver or rowing.
The process of wrapping the yarn in a specific bobbin or cup is called wind.
Sliver is a web-shaped continuous material that is made by processing cotton into a carding machine.
The sliver is made into a thinner material by reducing its single length-weight by processing it in a roving frame or a simplex machine; It’s called roving.
The rod in which the roving is wrapped in a roving frame or simplex machine is called a bobbin.
The spindle ring is the most important part of the frame that helps in twisting and winding. The ring cup is the ring cup in which the yarn is wrapped around the front of the ring frame.
The yarn in the machine that passes through the curved sheet or ring through the traveler and gets wrapped in the package is called a ring.
The Traveler ring is the smallest part of the machine that ensures the path or speed of the yarn passing through the ring.
Quality is an English word that means value in Bengali. Quality is the quality and characteristic of a product.
During ginning or carding, the cotton fibers can sprout into cocoons which spoil the quality of the yarn in the spinning process; This type of fiber cocoon is called KNEPS.
Trash is a mixture of cotton leaves, bark, grass, and other unwanted waste.
Productivity refers to the ability of a machine or a worker to work.
The percentage of how much less a machine can produce with less raw material and energy is called efficiency.
#Machine Down Time
As long as the machine is shut down for repairs or any purpose other than production, it is called machine downtime.
Waste is the raw material that is wasted in the production process.
Reducing the weight of a single length or increasing the length of a single weight is called drawing.
The process of converting two or more objects into one is called doubling. For example, if 6 slivers are fed to the drawing machine and converted into 1 sliver, it will be doubled.
The ratio of the feed roller’s speed to the delivery roller’s speed is called drafting. For example, if the speed of the feed roller is 100 times per minute and the speed of the delivery roller is 600 times per minute, then drafting will be = 800/100.
1. What is the yarn count:
Yarn count is the number of yarn by which the yarn is thick or thin. For example, indirect method, the higher the yarn count or number, the thinner the yarn will be. Again, the higher the yarn count or number in the direct method, the thicker the yarn will be.
Yarn count indirect method:
English Count: 1 pound of yarn with a hang of 640 yards is called the English count. For example, if there are 50 hanks of 640 yards in 1 pound of yarn, it is called English count.
Yarn count indirect method:
Tex count: The weight of 1000 meters of yarn is called the tex count. For example, if the weight of 1000 meters of yarn is 40 grams, its tax count will be 40 texes. It is also called Universal Count.
The metric count is the number of grams of yarn that weighs 9000 meters. For example, if the weight of 1000 meters of yarn is 40 grams, its metric count will be 40 deniers.
For cotton yarn:
18 ounces = 1 pound
453.6 grams = 1 pound
640 yards = 1 hank
1 kg = 2.2048 lbs
1 meter = 1.09 yards
1 yard = 0.93 m
1 inch = 2.54 cm
1 l = 120 yards
6000 grains = 1 pound
Cotton Count = 509.5 / Tex Count
Tex count = 509.5 / cotton count
Cotton Count = 5315 / Denier
Tex = 9 / Denier