Nonwoven materials , medical strengths

Strengths and limitations of nonwoven materials for medical applications... 

Olefin fiber is an important material for nonwovens (77). The geotextile market is stiU small, despite expectations that polypropylene is to be the principal fiber in such appHcations. Disposable nonwoven appHcations include hygienic coverstock, sanitary wipes, and medical roU goods. The two competing processes for the coverstock market are thermal-bonded carded staple and spunbond, both of which have displaced latex-bonded polyester because of improved strength, softness, and inertness. 

For the back belt, materials were selected to develop a strong and flexible product. The main properties of the chosen materials included flexibility, breathability, antistatic, hydrophUic and pleasant to the skin. For the first and second layers a cotton twUl material is used because this material is strong, breathable, antistatic and pleasant to the skin. Because of its properties, the material is used in the inner surface of the medical back belt where it is directly applied onto the skin. The third layer is a nonwoven polyester filling, which gives extra stability and comfort. As a fourth layer, cotton DreU material is used because of its outstanding strength and flexible properties. This material is often used in orthopaedic devices such as orthopaedic corsets and for temporary trunk orthosis because it can support and stabilize the parts of the body where it is applied. In the medical back belt it is applied in both sides of the product so that a straight posture can be achieved. Furthermore, PES tricot is used for more support and flexibility. Because of the combination of these four different materials, the stabilization and comfort can be realized by the back belt. 

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