Thermal Bond Nonwoven Fabric — Heat-Bonded Roll Material

The web is bonded by heat: fusible fibre or the lower-melting component of the web softens and welds the structure together. Nothing is added to the fabric, so the result is a binder-free material whose character — flat and strong, or lofty and soft — is set almost entirely by how the heat is applied.

Calendering presses the web between heated rolls, usually with an engraved pattern, giving a flatter, stronger, thinner fabric. Ultrasonic bonding applies energy at discrete points without a full heated nip, keeping more softness and allowing patterned bonding. Through-air bonding blows hot air through the web so it bonds without compression, which preserves loft and permeability. These are three different materials in practice, and the method belongs in the specification.

Thermally bonded fabrics are produced from polyester and from blends including bicomponent fusible fibre. The blend determines what melts, how strong the bond is, and how the fabric recovers after compression. Loft-critical products such as comfort and filtration layers usually depend on both the blend and a through-air bonding route.

Fibre composition, basis weight, thickness and loft, bond pattern, tensile and elongation, air permeability, recovery after compression, colour and roll dimensions all vary with the manufacturing specification. No fixed technical values, ratings or approvals are published on this page.

Send the basis weight, roll width, roll length, colour and quantity, together with the application. Where relevant, state whether loft or flatness matters more, which bonding method your process needs, the permeability or recovery you expect, and any downstream cutting, moulding or lamination step.

Allzone confirms fibre composition, bonding method and basis weight with the supplier before quoting and shares technical data for the exact material offered. No flammability rating, approval or certification is assumed on this page.