Spunbond non woven fabric is a lightweight, durable material made from continuous filaments of synthetic polymers. In this blog post, we will discuss the properties, uses, manufacturing process and compare different types of spunbond fabrics.
What Is Spunbond Nonwoven Fabric?
Spunbond nonwoven fabric is produced by extruding molten polymers like polypropylene or polyester through fine spinnerets to create continuous filaments. These filaments are then drawn, cooled and deposited in a random, interconnected web using an airlaying process. The web is then bonded mechanically or chemically to give it required strength.
The resulting fabric is a nonwoven material made of continuous filaments that are high strength yet very fine, giving spunbond fabrics their characteristic properties. The most common spunbond fabric is made of polypropylene polymers.
Properties Of Spunbond Fabrics
• High Strength – Spunbond fabrics have high tensile strength due to the continuity and quality of filaments.
• Good Absorbency – The porous nature of the fabric allows it to absorb liquids quickly.
• Breathability – The space between filaments allows air to circulate, making the fabric breathable.
• Electrical Conductivity – Spunbond fabrics are electrically conductive, making them suitable for uses requiring EMI/RFI shielding.
• Soft Hand – Spunbond fabrics have a soft feel due to the fine filaments.
• Resistance to Chemicals – Spunbond fabrics are resistant to acids, alkalis and organic solvents.
• Low Cost – Spunbond fabrics are relatively inexpensive due to the efficient production process.
Uses Of Spunbond Fabric
• Disposable diapers and sanitary pads – Spunbond nonwoven is used as the outer layer and liners in these products due to its absorbency and softness.
• Filters – Air and liquid filters use spunbond fabric as a filtration medium, exploiting its porosity and fine filaments.
• Geotextiles – Spunbond is used as a separator and stabilization fabric in civil engineering projects.
• Medical – It is used in products like surgical gowns and drapes for its barrier properties and low linting.
• Apparel – Spunbond fabrics are incorporated into garments as interlinings and for moisture management.
• Industrial – Spunbond nonwoven is used as liners, wipers and insulation in industrial applications.