
Nonwoven fabrics are technical textiles that are manufactured using sheets or web structures bonded by means of various thermal, chemical or mechanical processes. Such fabrics can be manufactured or modified to exhibit superior properties as per requirement of certain applications. Some of the desired properties include absorbency, elasticity, filterability and flame retardancy. Various high-tech processes such as spunlaid, wetlaid and drylaid technologies are used to manufacture nonwoven fabrics in order to achieve desired characteristics in the finished products. Spunbond and meltblown are the most preferred spunlaid techniques. Spunlace and needlepunch are the other prominent types of nonwoven fabric manufacturing techniques. The characteristics of finished products also depend on the raw material used. Polypropylene, polyester, rayon, polyurethane, polyethylene, and nylon are the generally used raw materials. Among these, polypropylene is used most prominently. Polypropylene spun bond, polypropylene spun lace and polypropylene needle punch are some of the most widely used nonwoven fabrics in industrial as well as hygiene applications. Nonwoven fabric materials find use in a diverse set of industrial as well as consumer applications. Major applications of nonwoven fabric include personal care, construction, and textiles. Among these applications, personal care is the most prominent application, where it is used in the production of disposable diapers, feminine care products and adult incontinence products.