Rayon/Viscose Yarn-1220-2440 dtex

Catalog	ACMA00031872
Description	We offer a range of high tenacity multifilament Viscose Rayon yarns. This cellulosic-based yarn is used in applications like food packaging, home textiles, cordage and netting.
Application	for industrial
Form	Multifilament yarn
Notes	Viscose fibers are obtained from wood of beech, spruce, bamboo, and other woods. The contained cellulose is extracted, and a spinning mass is produced. When the correct viscosity is reached, the viscose fiber is produced by spinning nozzles. The regenerated cellulose is chemically identical to the native fiber cellulose, such as cotton, but has a different elementary lattice in the ordered areas. By modifying the production parameters and the aftertreatment, viscose fibers can be adapted very well to the intended processing and use, e.g. highly crimped, highly wet-strength, color-fast spun-dyed and flame-retardant fibers. Different crimps and cut lengths make blends with cotton or wool possible, but also used alone there are many applications such as the dressing industry, tamponages, hospital textiles and hygiene. Smooth filaments are used in cord fabrics for tire carcasses, conveyor belts, injection molding reinforcement, filter media for food and other applications.
Specification	1220-2440 dtex

Case Study

Effects of Different Process Parameters on the Properties of Continuous Viscose Fiber/Epoxy Composites

Ungerer, Bernhard, et al. Polymer Composites, 2022, 43(2), 1012-1021.

This work studies the effects of different yarn structures and coatings on the mechanical properties of viscose fiber/epoxy composites, using single yarns embedded in epoxy resin as tensile specimens. The research parameters include untwisted and twisted, with or without fiber finishing, and with and without acrylic coating. The experimental results are as follows:
· Plain-weave fabric yarns-maintained twist and crimp post-epoxy impregnation without prestress, leading to misalignment and reduced tensile strength and elongation.
· Crimp was identified as a crucial process parameter affecting yarn properties. Warp and weft yarn comparisons showed higher crimp resulted in increased strength losses.
Prestressing fabric-derived yarns during resin curing effectively restored properties comparable to straight yarns.
· Limited impact of remaining yarn twist on mechanical properties, making twisted yarns favorable for processability.
· Presence of fiber finish on yarn surface did not significantly affect mechanical performance, indicating potential to skip removal step for composite manufacturing ease.
· Acrylic coating layer hindered epoxy penetration, impacting elongation but not tensile properties, creating a core of movable filaments suitable for flexible, less stiff applications.