Single-Layer Nonwoven Fabrics:

Extrusion and Fiber Formation: The process begins with the extrusion of molten polymer through the spinneret, creating individual fibers.

Web Formation: The fibers are collected and laid down onto a conveyor or belt to form a single-layer web. This web is created by arranging the fibers in a uniform manner.

Bonding: The bonding process is applied to the single-layer web to provide strength and integrity to the fabric. Various bonding methods, such as thermal bonding, chemical bonding, or mechanical bonding, may be employed depending on the desired properties of the fabric.

Finishing Processes: After bonding, the fabric may undergo additional finishing processes such as cutting, winding, or treatment to meet specific requirements.

Multilayer Nonwoven Fabrics:

Multiple Extrusion Lines: In the production of multilayer fabrics, there are multiple extrusion lines or spinnerets of Nonwoven Spunmelt Machine involved. Each line produces a separate layer of fibers.

Layer Assembly: The individual layers of fibers are combined or stacked on top of each other to create a multilayer structure. This can be achieved through processes like coextrusion or by combining separately produced layers.

Web Formation: Similar to single-layer fabrics, the combined layers are formed into a web. The arrangement of layers can be adjusted to achieve specific characteristics in the final product.

Bonding of Layers: The layers are bonded together to form a cohesive multilayer fabric. Bonding methods may be applied between the layers to ensure proper adhesion.

Additional Processes: Similar finishing processes, such as cutting and winding, may be applied to the multilayer fabric after the bonding of layers is complete.

The production of multilayer nonwoven fabrics allows for customization of properties in different layers, providing enhanced functionalities or performance characteristics. This is especially beneficial for applications that require specific combinations of properties, such as filtration or barrier materials. The choice between single-layer and multilayer production depends on the intended use and performance requirements of the nonwoven fabric.