As an important textile raw material, viscose fiber is widely used in many fields. Understanding and mastering the skills of using viscose fiber is crucial to give full play to its performance advantages and improve product quality.
First of all, in the spinning process, attention should be paid to the hygroscopicity of viscose fiber. The moisture content of viscose fiber has a great influence on its spinnability. Generally speaking, the spinning performance of viscose fiber is ideal when the relative humidity is 70% - 80%. In the spinning process, the temperature and humidity should be reasonably adjusted according to the actual situation, and the appropriate draft multiple and twist coefficient should be selected. Excessive draft multiples may cause fiber breakage and affect the strength of the yarn; while the twist coefficient directly affects the feel, strength and elasticity of the yarn, and needs to be adjusted according to the specific purpose.
During the weaving process, the shrinkage rate of viscose fiber fabrics is relatively high. In order to reduce shrinkage, pre-shrinkage treatment methods can be used, such as hot water immersion pre-shrinkage or rubber blanket pre-shrinkage. At the same time, attention should be paid to tension control during weaving to avoid problems such as deformation of the fabric or weft skew caused by excessive tension.
For the finishing of viscose fabrics, appropriate finishing agents and processes should be selected according to their characteristics. Viscose fiber has good hydrophilicity, and it is suitable to use hydrophilic finishing agents to improve the hygroscopicity and comfort of the fabric. In terms of dyeing, viscose fiber has good adsorption of dyes, and reactive dyes, direct dyes, etc. can be used. However, it should be noted that the parameters such as dye concentration, temperature and time should be controlled during the dyeing process to ensure the uniformity and depth of color.
When using viscose fiber for production, attention should also be paid to its blending effect with other fibers. Reasonable matching with other fibers can improve the performance of the fabric, such as blending with cotton can increase the comfort and strength of the fabric; blending with polyester fiber can improve the elasticity and wrinkle resistance of the fabric.
Mastering the use skills of viscose fiber can better play its advantages in the textile field and lay the foundation for the production of high-quality products.