Hydrophilic nonwovens easily absorb water and transport it on. Use of special product variants enables storage of the fluid. Oleophobic nonwovens are capable of absorbing high levels of oils and fats.
- Hygiene products: In these applications, nonwovens are required to quickly transport the maximum amount of fluid to the absorbent core for storage and prevent rewet.
- Wipes: The lotion applied to the nonwoven is absorbed but allows a sufficient amount to be released again during application.
- Automotive: Nonwovens used in the seat are required to quickly and reliably absorb water vapour, creating a continually pleasant micro-climate in the seat.
- Environmental applications: In this area of use, highly absorbent nonwovens are applied to assimilate oils, water or other fluids.
Hydrophilic properties are tested according to WSP 10.1. For example, capillary rise is determined by the speed of fluid absorption and its distribution. The wider the distribution throughout the material, the better the storage capacity. this property for instance, is exploited in the absorbent core of a hygiene product. Another test focuses on maximum fluid intake, determining the level of fluid the medium can store.
See also: Resistance