被服に付着した油性汚れの酸化に関するモデル的研究
1982 年 33 巻 10 号 p. 521-526
詳細
1982 年 33 巻 10 号 p. 521-526
An experiment was performed on the model system to investigate the process of oxidation of sebum adhered to clothes. Lard, which consists of similar fatty acid composition to sebum and does not contain antioxidant, was used as a model substance. Test-fabrics which were soiled with lard were hung in an incubator controlled at 50°C, 40°C and 30°C for 1-60 days. The degree of oxidation of the lard extracted from the fabrics was followed through the peroxide value, carbonyl value, concentration of conjugated diene hydroperoxide, and fatty acid composition.
The results were summarized as follows;
1) No appreciable difference among the degrees of oxidation of lard adhered to cotton, wool, acrylic, and polyester fabrics was observed. From this fact, it could be considered that there was little effect in each fiber to the oxidation of lard.
2) It was recognized that the rate of autoxidation of lard on fabrics was very rapid.
3) Linolic and linolenic acids were more rapidly decomposed than oleic acid.
4) The autoxidation rate of lard on fabrics increased by twice, when aging temperature rose by 10°C
