· It is not a pulpless diaper. The curly pulp acquisition layer contributes to the total absorbency.
· It weighs ~34 gms and is 0.76 cms thick.
· Much of the high performance comes from the permeability of the SAP, and the wicking in the curly pulp layer.
· Mannequin testing in comparison with other Pampers and Huggies diapers showed:
o Absorbency before leakage – stomach position – Dry Max came second to Huggies Overnights.
o Absorbency before leakage – back position – Dry Max came 10th, Huggies Overnights came 9th.
o Rewet: Dry Max came 5th.
Other constructions (than Dry Max) which work well at high SAP loadings were tissue/SAP sandwiches with ADL, synthetic fibre/SAP sandwiches with ADL, air-laid SAP composites with ADL, and CoForm cores with ADL. SAP selection was key: chemistry, X-linking, size, permeability and whether layered or blended all being important construction variables.
For homogeneous blends of pulp and SAP, 37% SAP works best for absorbency; more SAP giving less total absorbency. Traditional SAP’s work better than high permeability SAPs.