596098 Disclosed is a composite absorbent material (10) comprising one or more absorbent layers (6), that include superabsorbent material, and one or more reinforcing layers (4) bonded together. High frequency, or ultrasonic, mechanical vibrations are used to bond at least two of the layers together at a plurality of weld points. The weld points have a diameter of between 0.5mm and 2mm, and are spaced between 5mm and 30mm. The reinforcing layers maintain the structural integrity of the material following fluid absorption. The composite absorbent material may form the absorbent component of an absorbent wound dressing. A method of manufacture is also disclosed.
