Proposal and Validation of Method for Measuring Vacant Space Distance in Worn Sanitary Products : Measurement of Vacant Space Distance in Worn Sanitary Napkins

Abstract

In this paper, we propose a new method that measures the vacant space distance between the human body and sanitary products. The proposed method obtains the vacant space distance by subtraction between human body front surfaces and sanitary products back surfaces. In the developed measurement device, the back surface of sanitary products is measured using a laser displacement transducer on the inside of a partial human body model made of wire netting, and the vacant space distance is obtained by subtracting the front surface of the human body from the back surface of the sanitary products. To evaluate the method we measured the vacant space distance between the human body and sanitary napkins. Evaluation experiments proved that the proposed method is capable of obtaining vacant space distance changes by the differences of weight, crimping, and absorption for sanitary napkins. (Received 28 October, 2011 ; Accepted 10 January, 2012) *1 Faculty of Textile Science and Technology, Shinshu University, 3-15-1, Tokida, Ueda, Nagano 386-8567, Japan *2 Unicharm Corporation, 1531-7, Wadahama, Toyohama-cho, Kanonji, Kagawa 769-1602, Japan Proposal and Validation of Method for Measuring Vacant Space Distance in Worn Sanitary Products -Measurement of Vacant Space Distance in Worn Sanitary NapkinsYosuke Horiba , Shigeru Inui , Tomoyuki Nakamura , and Hiromi Teraoka *2 一般報文 衛生用品装着時における空隙量計測方法の提案と評価 -生理用ナプキン装着時の空隙量計測118 SEN’I GAKKAISHI (報文)Vol.68, No. 5 (2012) (48) mm程度に達する生理用ナプキン(以下,ナプキン)を対象 として,提案する空隙量計測手法の有効性を検証する.