処理過程に於ける犢皮組織の変化に関する研究

Abstract

In order to investigate the relation between the period of liming and the quality of leather and gelatine, the calf skin has been soaked in the saturated lime solution at 18°C, and the leather and gelatine have been made one after another. Through the various tests, following results were obtained:(1) The calf skin was tanned rather well after it was soaked in lime solution for 6 days or 10 days, Especially that of 8 days treatment in lime solution was of the best quality as the leather, as that was proper in the grain layer and section of the leather, the tention strength being bighest. (2) Gelatine made from the calf skin after it was soaked for 20 days in lime solution, was the best in quality. The suitable period of liming of calf skin for making gelatine is from 17 days to 23 days at 18°C. (3) As the rusults of this rasearch, it was proved that what the writer maintained in the preceding chapters, was not mistaken.