コラーゲン繊維の性質に関する研究

Abstract

In this experiment the recovery of collagen fiber from dried hide was tried. The process of the recovery of co11agen fiber was as follows. 1. Dried hide→Wet back→Liming and deliming→Enzyme treatment→Acetone treatment→Seating→Fiber disintegration→Collagen. fiber (Process 1). 2. Process 1+additional mechanical loosening treatment applied on acetone wetted material. 3. Process 2+additional chemical loosening (reliming after enzyme treatment).Comparing the above-mentioned three processes on the recovery percentage and length of fiber obtained, it was observed that dried hide required not only mechanical fiber bundle loosening such as beating but also a special chemical loosening treatment such as reliming after enzyme treatment (Process 3) to be well disintegrated into fiber, in contrast to salted material which. was previously reported to be loosened satisfactorily by the beating process only.Examining the effect of periods of liming and reliming on the recovery percentage, length and mechanical strength (tensile strength and elongation at break) of fibers recovered through Process 3, the most suitable conditions were considered to be a combination of either liming 1 day and reliming 4 days or liming 2 days and reliming 2 days.