How are different types of fabrics bonded together in Bonded Fabric?

When manufacturing Bonded Fabric, different types of fabrics need to be bonded together in an efficient way to produce a composite material with the desired properties. This bonding process is critical as it determines the quality, stability and durability of the final product. In practice, there are several common ways to achieve this bonding between fabrics.

One common method is to use chemical adhesives. In this method, a chemical adhesive is coated or sprayed between two or more fabrics and then cured by applying heat or pressure. This method allows the adhesive to penetrate between the fibers of the fabric and form cross-links therein, thereby firmly bonding the fabric together. This method is typically used in applications requiring higher bond strength and durability.

Another common method is heat pressing. In the heat pressing process, two or more fabrics are placed together and then pressed together through the action of heat and pressure. During the heating process, the fibers on the surface of the fabric soften, allowing it to better bond with other fabrics to form a strong bond. This method is typically used where higher bond strength and larger areas are required.

Another method is melt bonding, which is particularly suitable for fabrics with melting properties, such as thermoplastic polymers. In the melt bonding process, the fabric is heated to melt it and form an adhesive layer on the surface, and then another layer of fabric is brought into contact with it and cools to form a strong bond. This method is typically used in applications requiring higher bond strength and abrasion resistance.

In addition, methods such as hot melt adhesive and mechanical lamination are available. The hot melt adhesive method involves applying hot melt glue to the surface of a layer of fabric, and then heating the hot melt glue to melt it and bond the two layers of fabric together. Mechanical lamination uses mechanical pressure to press two or more layers of fabric together, usually with appropriate heat or chemical treatments to enhance bonding and durability.