Objective Evaluation Equation for Primary Hands of Top Sheet of Disposable Diapers

In order to evaluate fabric handle of top sheet of disposable diapers objectively, primary hands for the top sheet were selected and defined from the opinions of consumers (mothers) who are using disposable diapers for their children. Four primary hands such as "NAMERAKASA", "SOFUTOSA", "KOSHI" and "FUKURAMI" were defined for the top sheet and they could ex-plain 87% of the descriptions used for hand evaluation. "NAMERAKASA" is considered to be a peculiar primary hand of top sheet of disposable diapers. Objective evaluation equation (DPC M •| 1)of the top sheet using those basic mechanical parameters was developed by stepwise re-gression method with high accuracy and small errors.