Stretch yarns are frequently continuous-filament synthetic yarns that are very tightly twisted, heat-set, and then untwisted, producing a spiral crimp giving a springy character.
What is stretchy yarn used for?
Fabric with stretch yarn provides the wearer comfort, durability, wrinkle resistance and freedom of movement. Therefore, such fabrics are in high demand.
What is stretch yarn made from?
The two fibers most widely used in making stretch yarns are nylon and polyester. Yarns with similar or greater elastic stretch can also be produced using an elastomeric thread as the core and wrapping it with a nonstretch textile fiber bundle, filament or staple (Fig. 1.7).
What is elastic yarn?
Spandex yarn is a man-made elastic fiber developed. It is a manufactured texture material with elastic properties of the sort referred to nonexclusively as “Elastic Yarn”. Spandex yarn is ordinarily used in athletic or dynamic dress.
What type of yarn is stretchy?
Mohair is very elastic-stretching and springing back to shape so it resists wrinkling and sagging. Because it is so fluffy, it can be hard to knit-especially if you want defined stitches. It is often blended with silk or wool to add weight.
What yarn stretches the least?
The Industrial Yarns bag was the least stretchy, with only 28% increase in length from no weight to 1600 g, while the other three cotton based bags had very consistent stretches of 40-45%.
What is modified stretch yarn?
Modified stretch yarns: They are produced by the presence of second heating zone during false twist or edge crimping process. They have moderate stretch (100-150%) with high bulk. Bulk yarns: They are produced by fear crimping, stuffer box, air jet and knit-de-knit processes. They have no stretch and high bulk.
What is fiber stretching?
Orientation is completed by stretching, or drawing, the filament, a process that pulls the long polymer chains into alignment along the longitudinal axis of the fibre…
Is spandex material stretchy?
Spandex is a lightweight, soft smooth synthetic fiber which has a unique elasticity. Due to its elastic property, it is used in making stretchable clothing. … Moreover, this fiber can stretch up to 500% of its length. The fiber is resistant to wear and tear caused by sweat, detergents, body oils, lotions, etc.
What are the four types of yarn?
The Different Yarn Weights
- Super Bulky or Super Chunky. Commonly used for heavy blankets and rugs, or chunky pullovers.
- Aran or Afghan. Used for scarves, hats, garments such as jumpers and cardigans. …
- Worsted Weight or DK (double knitting yarn) …
- Sport. …
- Baby. …
- Fingering or Super Fine Weight. …
- Thread or Lace Weight Yarn.
How many types of yarn are there?
There are two main types of yarn: spun and filament.
How many types of yarns are there?
Yarns can be described as single, or one-ply; ply, plied, or folded; or as cord, including cable and hawser types.
Is spandex elastomeric yarn?
Synthetic Elastomeric Yarn is commonly referred to as spandex yarn which was first produced in the 1950s by the German textile manufacturer Bayer Fibers. Spandex was originally designed to be a synthetic replacement for natural latex rubber.
Is Nylon A yarn?
Nylon yarn is a synthetic material yarn that can be made to resemble the look and feel of many natural fibers. Originally, nylon was created as a substitute for silk when the latter material became difficult to obtain. Nylon is strong, slightly stretchy, and generally cheaper than natural fiber yarns.
What is high bulk yarn?
High Bulk Yarns are yarns that are processed so that, through a form of shrinkage in the processing, they are thicker and bulkier than they would be otherwise. Normally, high bulk yarns are mainly made out of shrink and non-shrink staple fibers especially polyacrylonitrile through semi-worsted spinning process.