Wet strength

What does wet strength mean?

Wet strength describes the ability of a paper or non-woven to remain stable and tear-resistant even when exposed to moisture. This physical property is essential for applications that come into contact with water or humidity. Wet strength is usually increased through the use of specialised wet-strength agents and selected binders during production.

Importance of wet strength in technical speciality papers and non-wovens

For LAHNPAPER, wet strength is a key quality characteristic. Many products – such as water-resistant security papers, race numbers, card materials or labels – require defined tear resistance even under the influence of moisture. By using targeted binders and additives, resistance to water and moisture is precisely adjusted.

Advantages in LAHNPAPER products:

• High strength even when exposed to moisture
• Durability in outdoor applications

Production-related aspects

The wet strength of speciality papers or non-wovens is determined by the selection of suitable fibres, binders and bonding processes.  Particularly in specialised applications, high wet strength can be crucial for the functionality of the final product. A balanced ratio of dry and wet strength ensures that the material remains versatile in use.