Nonwoven
Also searched as: non-woven, nonwovens, needlepunch, needle-punched, spunlace, hydroentangled, spunbond, meltblown, SMS
A nonwoven is a sheet or web of fibers or filaments bonded by mechanical, thermal or chemical means rather than by weaving, knitting or interlacing yarns, used in hygiene, filtration, geotextile and apparel products.
In detail
Nonwoven manufacture has two stages, web formation and bonding. Webs are formed dry (carding or airlaying staple fiber), wet (from a papermaking-style slurry) or directly from polymer (spunbond and meltblown). Bonding then gives strength. Needlepunching drives barbed needles through the web to entangle fibers mechanically. Spunlacing, or hydroentanglement, uses fine, high-pressure water jets to give a soft, textile-like fabric common in wipes. Thermal bonding fuses thermoplastic fibers at points or throughout, and chemical bonding uses binders. Many products stack layers, such as spunbond-meltblown-spunbond (SMS) composites.
The science and numbers
Spunbond lines melt spin continuous filaments, draw them with high-velocity air, lay them randomly on a moving belt and usually bond them by calendering between heated, patterned rolls. Meltblown lines attenuate molten polymer with hot, high-velocity air into filaments much finer than spunbond; the large fiber surface area suits filtration, and electret charging improves capture efficiency and its durability. Polyolefin spunbond and meltblown fabrics dominate disposable hygiene and medical products. Thermal bonding of staple webs often uses core-sheath bicomponent binder fibers whose low-softening sheath fuses at crossings. Needlepunched strength rises with needle density and penetration depth, and hydroentanglement forces water through small orifices at high pressure to wrap fibers around one another. Basis weight, fiber orientation and bond pattern tune the final properties.
A practical example
A student takes apart a disposable face mask. The outer and inner layers are spunbond polypropylene with a regular pattern of bond points visible under a lens; the middle layer is meltblown, much finer and softer, and does most of the filtering. None of the layers contains yarn, yet each behaves as a fabric suited to its job.
What to distinguish
Nonwoven describes construction, not fiber content or durability; nonwovens range from single-use wipes to long-lived geotextiles. Some contain cellulose and may be marketed as biodegradable, but many wipes include polyester or polypropylene, so check fiber content. Wet-felted wool is sometimes grouped with nonwovens, but its cohesion comes from fiber scales rather than an engineered bonding step.
Origins and history
Felt made from wool is often cited as a forerunner, but the modern nonwoven industry grew in the twentieth century, drawing on textile carding, papermaking and, later, polymer extrusion. Bicomponent binder fibers, commercialized from the 1960s, broadened thermal bonding, and spunbond and meltblown lines turned polymer directly into fabric. A review of melt-spun fibers reports that nonwovens now account for the largest tonnage among technical textiles. The name still defines the category by exclusion, as fabrics made without weaving or knitting.
Related terms
Sources & further reading
- Materials: Melt-spun fibers for textile applications (Hufenus et al., 2020)
- Polymers: Long-lasting electret melt-blown nonwoven functional filters (Lin et al., 2023)
- PDA Journal of Pharmaceutical Science and Technology: Life cycle assessment of reusable and disposable cleanroom coveralls (2018)
- BISFA: Terminology of man-made fibres (2017)
Technical references reviewed 2026-09-22. Examples are illustrative. Industry organizations and manufacturers describe their own fields; their references are not independent product endorsements. Figures are approximate and depend on the stated test conditions.