An original KAKISHIBU-KAMIKO (Outerwear made of Japanese paper to which persimmon tannin has been applied) was developed by selecting a type of persimmon tannin suitable for producing KAKISHIBU-KAMIKO as a clothing material. This development was based on the results of a study of the extraction and application of KAKISHIBU (persimmon tannin) and the work of present-day textile-dyeing artists. Eighteen prototype samples were produced by using different tannin application processes and drying processes. The samples of prototype were then compared. In this way the most appropriate production process was developed.
A stretch test of the KAKISHIBU-KAMIKO that was produced showed that the paper had stretch properties similar to those of fabric and could be used as a clothing material. Comparison of measurement data for non-tannin-applied WASHI (Japanese paper) and KAKISHIBU-KAMIKO showed that tannin application improved the strength of WASHI and gave the paper water resistance. In dress production the paper showed potential for the use of designs with creative silhouettes. Details that utilize the characteristics of the tannin-applied WASHI can be incorporated: for example, silhouettes can be created on the basis of the materials' hardness, as indicated by its bending resilience. Dress production methods can utilize the increased strength supplied by the tannin application, which is considered unsuitable for fabric.