Why is Air Covered Yarn Cheaper Than Machine Covered Yarn?
Generally, the air-covered yarn is cheaper than the machine-covered yarn. The reason for this is the fact that the air pressure plays an important role in the characteristics of the air-covered yarn.
Source: https://i.pinimg.com
Untextured CF yarns are cheaper than machine-covered yarn
Using untextured CF yarns is a good way to save a few pennies on the cost of production. These are generally used in woven fabrics as well as tricot warp-knitted garments. In fact, these are the ingredients of choice in many light weight women's wear products.
In a nutshell, this polypropylene material boasts of a range of advantages over its nylon yarn counterpart. Aside from its high resistance to abrasion, it also has a number of anti-staining properties. Aside from its mechanical properties, it can be plied to make for a stiff fabric that is not only dimensionally stable but also lightweight and breathable. It is therefore a great choice for linings, especially those that see frequent washing and drying.
Aside from its mechanical merits, it is a worthy competitor to its nylon counterpart in the high-performance apparel arena. It is even capable of producing high-quality laced and embroidered clothing, thanks to its ability to maintain its shape. It has also become a popular choice for lingerie due to its tensile strength and ability to be stretched and reshaped without tearing. It is, of course, not the cheapest synthetic fabric in the world, but it is a worthy competitor to its nylon equivalent.
The main reason for its resurgence in popularity is the high cost of nylon. In fact, it is becoming a competitive substitute to other more expensive synthetic materials such as polyester.
Non-elastic yarns are more uniformity in size, strength, and elongation
Using non-elastic yarns, such as air covered yarn, has an advantage of more uniformity in size, strength and elongation. This type of yarn can be made from filament like polyester or spandex. They can be used to make cover and abrasion resistant fabrics. These yarns are also useful as shielding in environments exposed to heat and electromagnetic radiation.
Several studies have been conducted to examine the influence of twist density on mechanical properties of yarns. In these studies, the highest increase in breaking force was observed in the finer yarns. Some of the important characteristics of yarns include breaking force, tenacity, work to rapture and elastic recovery.
The tenacity of yarn is the normalized force-to-break per cross-section. The elastic recovery is the capacity of the stretched fiber to return to its original length after release. This is a measurable property of yarns and is a key factor in assessing their suitability.
Higher loop density results from higher air pressure. Loops become more compact in yarn structure as the pressure increases. In addition, more binding points are strengthened with increased pressure. This results in a bulkier yarn. It is also possible that other sizing factors affect the weave-ability of yarns.
The elastane percentage of the yarn increases with an increase in the sheath count. This is the result of a higher initial modulus.
Source: https://i.pinimg.com
Air pressure plays a vital role in the characteristics of air-covered yarn
During the manufacture of air-covered yarn, the effects of air pressure play a significant role in the production of this versatile fibre. It is used for a variety of applications including knitted or woven fabrics.
The benefits of using this material include superior abrasion resistance, a uniform length and surface touch, and a higher degree of thermal regulation. The material also provides UV protection.
The production of an air-covered yarn is accomplished by co-feeding two or more yarns into a high-pressure compressed air nozzle. This process produces a composite yarn product with a few interlaced spots. The most common construction is a wrapped yarn made from DTY on spandex.
The most important benefit of the process is that it can be done in a single operation, a feat not achieved by conventional methods. The process is best suited for covering highly elastic yarns. It is also suitable for creating a continuous filament yarn. The resulting fabric is durable, has excellent abrasion resistance, and is easy to spin.
The process also creates a very small amount of leftover yarn. This small amount can be reclaimed for a subsequent spin. The most common construction uses a tensioned spandex core yarn that co-feeds into an air nozzle. This yarn is then staple spun. The result is a fabric that can be cut, twisted, and sewed to create various types of garments.
