Vylon

Updated: 2026-09-12

Overview

Vylon, also known as vinylon or polyvinyl alcohol fiber, is a synthetic fiber derived from polyvinyl alcohol (PVA). It was first developed in Japan and has since gained popularity for its unique combination of strength, chemical resistance, and versatility. Unlike many synthetic fibers, Vylon is soluble in hot water, which makes it useful for specialized applications such as water-soluble films and medical sutures. Vylon is produced through a wet-spinning process, where PVA is dissolved in water and extruded into a coagulating bath. The resulting fibers are then stretched and heat-treated to enhance their mechanical properties. This process yields a material that is both durable and adaptable to various industrial and consumer uses.

Physical and Chemical Properties

Vylon fibers are characterized by their high tensile strength, which makes them suitable for applications requiring durability and resistance to wear. The material is also resistant to most chemicals, including acids, alkalis, and organic solvents, though it dissolves in hot water. This property is leveraged in applications where temporary strength is needed, such as in water-soluble packaging. The density of Vylon ranges from 1.26 to 1.32 g/cm³, and it decomposes rather than melts at temperatures between 220-230°C. Its thermal stability makes it useful in environments where exposure to heat is a concern. Additionally, Vylon exhibits good abrasion resistance, which is beneficial in industrial settings where fibers are subjected to mechanical stress.

Main Applications

Vylon is widely used in the textile industry for making durable fabrics, often blended with cotton or other fibers to enhance strength and reduce shrinkage. Its chemical resistance makes it ideal for industrial filters, particularly in harsh environments where other materials might degrade. Vylon is also used in reinforcement materials for concrete and plastics, providing added strength and flexibility. In the medical field, Vylon's water-soluble properties are exploited for making dissolvable sutures and wound dressings. Additionally, it is used in the production of water-soluble films for packaging, which dissolve upon contact with water, reducing waste and environmental impact. These diverse applications highlight Vylon's adaptability and utility across multiple industries.

Safety and Storage

While Vylon is generally non-toxic, handling the material in powder or fiber form may cause respiratory or skin irritation. It is recommended to use protective gear such as gloves, masks, and goggles when working with Vylon, especially in industrial settings where dust generation is likely. Proper ventilation is also essential to minimize inhalation risks. Storage conditions for Vylon should include a cool, dry environment away from direct sunlight and moisture. Exposure to high humidity can cause the fibers to clump or degrade over time. For long-term storage, sealing the material in airtight containers or bags is advisable to maintain its quality and performance characteristics.

B2B Procurement Guide

When procuring Vylon for industrial or commercial use, it is crucial to verify the CAS number (9002-89-5) to ensure the material's authenticity. Buyers should also specify the desired fiber length, purity, and any additional treatments or coatings required for their specific application. Prices typically range from $2 to $5 per kilogram, depending on quantity and quality. It is advisable to request samples before large-scale purchases to test the material's compatibility with your intended use. Suppliers with certifications such as ISO 9001 or other quality management systems are preferred, as they are more likely to provide consistent and reliable products. Additionally, consider lead times and shipping conditions to ensure the material arrives in optimal condition.