What is rotor yarn?
Rotor yarn is formed by twisting of rotor by rotor spinning machine. This yarn can be formed from short fiber. Normally rotor yarn is coarse. Rotor yarn is also called open end yarn & Rotor yarn is widely used yarns in Denim production.
What is the limitation of rotor yarn?
The main disadvantage is that rotor spun yarns are not as strong as ring spun yarns, and the maximum tenacity of rotor spun yarns is at least 10–30%, and in some cases even up to 40%, lower than that of ring spun yarns.
Why rotor yarn strength is less than ring yarn?
Strength of ring spun yarn is higher than rotor spun yarn whereas strength of air jet yarn lies between ring and rotor yarn. Strength of rotor spun yarn is lower due to its core twist structure. 20% less than Ring spun yarn. Spinners are always trying to produce better quality yarn with low cost.
What is the range of count in rotor yarn?
Rotors having diameters of 45, 55, and 65 mm over a yarn count range of between 25 and 125 tex (Ne 4 and 24) with rotor speeds from 45,000 to 65,000 rev/min, were used. Results showed that fine yarns should be spun on small rotors, while larger rotors were suitable for coarse yarns. 2.2.
What are the types of yarns?
They include such types as fingering yarns, usually of two or three plys, light to medium in weight and with even diameter, used for various types of apparel; Germantown yarns, soft and thick, usually four-ply and of medium weight, frequently used for sweaters and blankets; Shetland yarns, fine, soft, fluffy, and …
Why rotor spinning is called open-end?
Rotor Spinning is a more recent method of yarn formation compared to Ring Spinning. This is a form of open-end spinning where the twist is introduced into the yarn without the need for package rotation. Allowing for higher twisting speeds with a relatively low power cost.
What is Vortex yarn?
What is VORTEX yarn? VORTEX yarn is spun with a unique technology. Its yarn structure optimizes the characteristics of its component fibers. In VORTEX spinning, one end of each fiber is anchored in the center of the yarn such that the center of the yarn is always without twist.
Which machine is used in rotor spinning?
|Robots||1 to 6 robots per machine (optional)|
|XPS||Easy and fast robot setting with the eXpert piecing system|
|AEROpiecing||AEROpiecing with a special air storage in the robot for yarn-like piecings. Including rotor cleaning at each piecing cycle (optional)|
What is ring spun yarn?
Ring-spun yarn is made by twisting and thinning the cotton strands to make a very fine, strong, soft rope of cotton fibers. Ring-spun cotton t-shirts are more durable and last longer than their regular counterparts, but will also be more expensive, too. … For a softer, more durable t-shirt, go with ring-spun.
What is the difference between open end and ring spun yarn?
Ring-spinning, which is a system of spinning using a ring and traveler take-up, twists and winds the yarn simultaneously and continuously. Open-end spinning, on the other hand, is a system of spinning where the yarn is twisted by rotating at the hap or break in the flow (the fibers wrap around the yarn v.
What is the difference between ring spinning and rotor spinning?
There are many difference between ring and rotor spun yarns. The abrasion resistance of rotor yarn fabrics is better, and color fastness is slightly higher for ring-spun yarn fabrics whereas shrinkages is the same for the fabrics made from ring & rotor spun yarns.
What are the different types of CompACT spinning technology?
The compact spinning system by Zinser supplied under the trade name of CompACT3, is a pneumatic (aerodynamic) compacting system based on the fibres bundling/compacting via several suction points(10).
- Perforated drum.
- Suction system.
- Bottom roller.
- Top roller.
- Nip roller.
- Air guide element.
What is electrostatic spinning?
Electrospinning is a fiber production method which uses electric force to draw charged threads of polymer solutions or polymer melts up to fiber diameters in the order of some hundred nanometers. … This makes the process particularly suited to the production of fibers using large and complex molecules.
What is spinning jet?
Air-jet spinning is a pneumatic method which consists of passing a drafted strand of fibers through one or two fluid nozzles located between the front roller of a drafting system and a take up a device. … Hence they receive less twist than those fibers in the main bundle.
How many spinning mills are there in Bangladesh?
Bangladesh currently has 424 spinning mills, 794 textile weaving mills, 241 dyeing and finishing mills, and a total of over 6,500 registered and over 500 un-registered garment and textile factories. Sixty-five percent of these factories are located in Dhaka district.