J. Technology and Education, Vol.22, No.2, pp.23-28 (2015)




田中 孝国*、江口 智之、阪下 広海、加島 敬太、高屋 朋彰、川越 大輔

小山工業高等専門学校 物質工学科 (323-0806 小山市中久喜771)



Estimation of the performance of Kanpyo desiccating tablets

made of different particle sizes


Takakuni TANAKA, Tomoyuki EGUCHI, Hiromi SAKASHITA, Keita KASHIMA,

Tomoaki KOUYA, and Daisuke KAWAGOE

National Institute of Technology, Oyama College

(771 Nakakuki, Oyama City, Tochigi Prefecture 323-0806, JAPAN)


(Received August 28, 2015; Accepted September 5, 2015 )


Kanpyo (dried gourd shavings) consists of a lot of fiber and 95% water. We noticed this structure and performed basic preparation of a new desiccating tablet. In the research thus far, the Kanpyo desiccating tablet has demonstrated the ability to absorb 50–60 wt% water. However, water seepage oozed from the Kanpyo tablets after they absorbed the water. In this study, we examined how to stop water seepage from Kanpyo tablets. First, the Kanpyo powder particles were sieved to different sizes. Next, the Kanpyo powder of each particle size was machine pressed. The water-absorbing performance of each Kanpyo tablet was confirmed in a saturated container. The results show that the most suitable particle size was less than 75 μm. Tablets with this particle size showed continued water absorption for 300 hours.

Key words: Kanpyo / dried gourd / desiccating tablet