New technology for ultra-thin superabsorbent diapers

Evonik intends to offer an innovative absorbent core technology for the production of ultrathin diapers.  Evonik is planning to sell the technology by licensing the procedure which has already been described in various patent filings, for example WO2012146748, inventor: W. Fenske et al.

The new technology places the superabsorbent particles in small pockets that are formed by laminated nonwovens which allow the diaper core to absorb fluid even faster and distribute it. This gives the diaper core a high level of stability, ensuring that the superabsorbent particles always remain at the place where they are needed. This special design, combined with an enhanced FAVOR® superabsorbent polymer, enables the diaper to be used more efficiently: Rewetting is significantly reduced, while wearing comfort is enhanced considerably.

Evonik sees considerable potential in further advancing this technology given market trend preferring ultrathin underwear-like diapers. The users of the technology also benefit from lower raw material and logistic costs.  

Superabsorbent polymers, the key raw material of modern hygiene articles, are water-insoluble, cross-linked polymers. They are capable of absorbing and storing up to 500 times their own weight in aqueous liquids, while also providing other performance characteristics such as skin dryness. The scope of applications for Evonik’s superabsorbent polymers reaches beyond baby diapers and also includes feminine hygiene and adult incontinence products as well as a broad range of technical areas.