“製革”就是用動物的皮,經過化學處理以後,使其變爲柔軟,並且長期不變質,以供作各種的用途。我們都知道,皮革是人們生活的必需品,尤其在國防上和在工業上,缺少了它根本就不行的。從原始即有製革起,以至於現代的製造,原理是相同的,不過其所用的方法,一則是用的原始的手工製造方法,一則是除了利用現代化的機器之外,尚 “Tanning” is the use of animal skins, after chemical treatment, making it soft, and long-term deterioration, for a variety of purposes. We all know that leather is a necessity for people’s lives, especially in defense and industry, and it is simply not possible without it. From the beginning to the end of tanning, the principle of modern manufacturing is the same, but the method used is one of the original hand-made methods. In addition to the modern machine,