What is a bicomponent yarn?
Bicomponent fibre, bicomponent yarn: a fibre or yarn which has two different types of continuous filament components. fibres spun from two different polymers. The most common types are made from polymers which have different melting points and are used for thermal bonding.
What are bicomponent yarns used for?
Diverse cross-sections ensure diverse yarn properties Bicomponent fibres or bicomponent filaments are frequently used as bonding fibres or filaments to bond the actual fibres and filaments together. In the case of carded nonwovens, for example, the sheath polymer of a bicomponent staple fibre is melted on in an oven.
What are the properties of yarn?
Yarn properties such as unevenness, hairiness, friction, roughness, shape, diameter, density, spinning technology and the raw material, and fabric properties such as fabric type and knitting structure, are the most important parameters that should be taken into consideration during the analysis of fabric surface …
What is bicomponent spinning?
Bicomponent Spinning. Bicomponent, hybrid or multicomponent fiber spinning refers to the technology of bringing two or more different polymers together at the spinneret hole so that each spun filament contains all the polymer components in separate parts of the cross-section (Durany et al., 2009).
What is a bicomponent fiber why are bicomponent fibers produced?
Bicomponent and multi-component fibers are fibers which are generated during the spinning process from two or more polymers which have different chemical or physical characteristics. The polymer melts are separately led to the spin packs or holes and thereafter spun to filaments.
What is polyester bicomponent?
Abstract. Bicomponent fibers can be defined as “extruding two polymers from the same spinneret with both polymers contained within the same filament.” The main objective of producing bicomponent fibers is to exploit capabilities not existing in either polymer alone.
What are secondary properties of yarn?
Secondary Properties
- Density: Density is the mass of a unit volume of material.
- Lustre: Lustre is the amount of light reflected from a surface.
- Absorbency: Generally textile fibres have certain amount of water as an integral part of the fibre.
What should be the ideal properties of yarn?
Uniformity Uniformity means the evenness of the individual fibres in its length and diameter. A fibre possessing this property can produce reasonably even yarns. This is also important in connection with the strength of the resulting yarn. Uniform textile fibres should possess uniformity in their thickness and length.
How are bicomponent yarns produced?
Bicomponent and multi-component fibers are fibers which are generated during the spinning process from two or more polymers which have different chemical or physical characteristics. Two extruders are used for melting the chips in the simplest two-component-spinning process.
What is a bicomponent fiber quizlet?
Bicomponent fibers contain polymers from two different generic fibers or fiber variants. Bicomponent fibers are produced provide specific properties within a single fiber. Wool has been replaced by manufactured fibers such as polyester or acrylic in many end uses.
What is a washable Web?
A washable web is a non-woven fabric and it’s produced using natural or synthetic fibres, and these fibres are then bonded together with heat or adhesives. It’s a strong non-woven fabric, and it can be reused without ruining the structural integrity of the fabric. Like other non-woven fabrics, washable webs don’t fray.
What are secondary Fibre properties?
Basic Textile Fiber Properties Such secondary properties include moisture absorption characteristics, fiber resiliency, abrasion resistance, density, luster, chemical resistance, thermal characteristics, and flammability.