Few products evolve as quickly as disposable diapers, especially in mature markets such as the U.S., Western Europe or Japan, where the diaper category is extremely competitive. The same trends, after some time lag, will reach all the developing markets of the world. Here is an attempt to list some of the changes in product design. I am a fan of mathematical modeling; however, the tripod is the best analogy that I have found to simply explain how diaper core performance really works. Others may claim there are many more properties to consider. I agree; however, the tripod incorporates the most important properties. The absorbent core performance in a modern diaper is based on a tripod; it is sup ported by three key diaper design properties.
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