Determining Moisture Regain Standards in Raw Textile Imports
Determine commercial moisture regain standards through representative bale core sampling and forced-draft oven drying to convert net shipping mass into billable commercial weight.
Viscose Staple
Regenerated Fibre
A manufactured cellulosic fibre of finite length produced by the wet spinning of dissolved wood pulp is a versatile raw material for yarn spinners. In contrast to continuous filament yarn, viscose staple is cut into short lengths to match the processing characteristics of cotton or wool. This configuration allows spinning mills to blend it with natural fibres to enhance the softness and moisture absorption of the final yarn.
It remains a popular choice for lightweight apparel fabrics due to its excellent drape.
Spinning Behavior
Blending these short fibres with polyester on standard ring spinning frames requires careful control of draft and twist settings. The smooth surface of the regenerated cellulose reduces inter-fibre friction, which can lead to yarn hairiness if the tension is too loose. Proper configuration prevents excessive fly waste from accumulating in the spinning room.
Moisture Sensitivity
Losing substantial strength when wet is a primary physical limitation of this material. Yarn and fabric handlers must minimize tension during continuous wet processing to avoid tearing the web. This temporary loss of strength recovers fully once the fabric is dried and relaxed.
Processing Checklist
Weighing the yarn packages before and after dyeing is critical due to the high moisture regain of the fibre. Without proper drying cycles, remaining moisture can cause fungal growth during shipping. This checkpoint confirms that the moisture levels have been restored to the standard commercial rate.