Faculty of Education, Shimane University
ISSN:0586-9943
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Memoirs of the Faculty of Education, Shimane University. Natural science 22 2
1988-12-26 発行
洗浄による絹繊維の劣化(第3報) : 界面活性剤存在下での熱および紫外線の効果
On the permanence of silk fibers for washing(part 3) : Effects of heating and ultraviolet irradiation in the presence of surfactants
Nishikori, Sadanori
Fujii, Akira
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Silk plain Habutae immersed in SDS, ABS and Marseilles soap (NAS) solutions were irradiated by using the ACME FADE TESTER and heated at 130～160℃. The changes of their permanences by irradiation and heating were investigated.
The decrease of tensile strength by heating was restrained by ABS immersion, which was remarkable in the case of higher temperature. In opposition, it was a㏄elerated by NAS immersion.
By irradiation, the lightness of surface color of the sample was decreased, and yellow value (b) was increased.
These lightness values of their radiation samples treated with surfactants were more decreased, but there were no differrences in b value. By heating, the lightness was decreased largely, and the b value and red value (a) were both increased, especially in the sample immersed in NAS.
The ATR spectra of the samples irradiated and heated were determined. It was found that the breaking of peptide bonds of silk was accelerated by irradiation and heating, in paticular with NAS immersion.
The decrease of tensile strength by heating was restrained by ABS immersion, which was remarkable in the case of higher temperature. In opposition, it was a㏄elerated by NAS immersion.
By irradiation, the lightness of surface color of the sample was decreased, and yellow value (b) was increased.
These lightness values of their radiation samples treated with surfactants were more decreased, but there were no differrences in b value. By heating, the lightness was decreased largely, and the b value and red value (a) were both increased, especially in the sample immersed in NAS.
The ATR spectra of the samples irradiated and heated were determined. It was found that the breaking of peptide bonds of silk was accelerated by irradiation and heating, in paticular with NAS immersion.
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