What are the properties of yarn?
The below characteristics of yarn has needed during knit fabric manufacturing or knitting.
- Yarn count,
- Co-efficient of variation (CV %),
- Twist in yarn,
- Twist variation in yarn,
- Regularity or evenness of the yarn,
- Imperfection in the yarn,
- Thick place in the yarn,
- Neps,
What is jet yarn?
Air-jet spun yarns have a two-layered yarn structure. The core fibres have no twist and are wrapped with fibres as in a rotor spun yarn. Air-jet yarn is less extensible due to the untwisted, straight and parallel arrangement of core fibres constituting 90% of the yarn.
What are the properties of textured yarn?
Texturizing processes were originally applied to synthetic fibres to reduce such characteristics as transparency, slipperiness, and the possibility of pilling (formation of small fibre tangles on a fabric surface). Texturizing processes make yarns more opaque, improve appearance and texture, and increase warmth and…
What are the properties of spun yarns?
Spun yarns are hairy while filament yarns are smooth. Spun yarns are less lustrous and generally softer in terms of handle than filament yarns. They tend not to slip as much as filament yarns and do not tend to snag as much. Spun yarns do, however, tend to pill more than filament yarns.
What is appearance and properties of loop yarn?
… Therefore, the loop yarn is composed of four-component yarns: two core yarns, one effect yarn and one binding yarn. The structure of the loop yarn is presented inFigure 1 [1, 2]. The frotte yarn is composed with three component yarns: one core yarn, effect yarn and binding yarn. …
What ply is jet yarn?
12 ply
Patons Jet with 30% alpaca / 70% wool to make it a softer, lighter yarn. It is a 12 ply with needle recommendation – 5.5 mm.
What is pill resistant air jet yarn?
Analysis of pill character suggests that the tightly wrapped structure of the air-jet yarn inhibits the formation of free ends of polyester, which are the primary cause of the pills. Pill resistance for the ring spun fabric was only slightly better than for the rotor spun fabric when the same polyester type was used.
What is crepe yarn?
Crepe yarns are 3-ply producing a rounded yarn that looks like a 2-ply yarn with another ply wrapped around it. The construction of this yarn differs from a typical 3-ply yarn that is spun by taking three single yarns and plying them all together at the same time.
What is the texture of yarn?
Yarn texture refers to the physical characteristics of the knitting yarn used to create a knitted fabric. It is usually described using subjective qualities like softness, fuzziness, or roughness, as well as more objective attributes like ply count.
How do you classify yarn?
The three basic classifications of textile yarn include staple fiber yarn, which uses mostly short natural fibers to make yarn; ply yarns, which involve one or more strands of staple fiber yarn wound together; and filament yarn, which is wound from one or more long continuous filaments.
What is filament in yarn?
A filament yarn is made of one or more continuous strands called filaments with each component filament running the whole length of the yarn. Those yarns composed of one filament are called monofilament yarns, and those containing more filaments are known as multifilament yarns.
What are the typical yarn properties of air-jet yarns?
The typical yarn properties exhibited by the air-jet yarns are good tenacity, good evenness, low snarling tendency, and low tendency to pilling, high stiffness, and high shrinkage.
What is air jet spun yarn?
Air-jet spun yarns have a two-layered yarn structure. The core fibres have no twist and are wrapped with fibres as in a rotor spun yarn. Air-jet yarn is less extensible due to the untwisted, straight and parallel arrangement of core fibres constituting 90% of the yarn.
Why do air-jet yarns have a high bending modulus?
“The high level of constriction of the straight core fibers by the surface wrapper fibers results in high bending modulus of air-jet yarns”. The tensile strength is lower than that of rotor and ring yarns.
What is the difference between air-jet spun and woven fabrics?
Air-jet spun yarns with low flex life fibres result in relatively pill-free fabrics. Air-jet yarns have wrapper fibres holding the yarn assembly together. These act to keep the body fibres from migrating to the surface. Tightly constructed knits and woven fabrics pill less than loosely constructed knits and wovens.