Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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The Effect of Fixing Agents and Softner on Sericin Fixation of Trimethylolmelamine

트리메틸올멜라민의 세리신 정착에 있어 정착제와 유연제의 영향

  • Park, Geon-Yong (Department of Fashion Design & Textile Engineering, Chungwoon University)
  • 박건용 (청운대학교 창의융합대학 패션디자인섬유공학과)
  • Received : 2017.02.13
  • Accepted : 2017.05.12
  • Published : 2017.05.31
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Abstract

The fixing behaviors of raw silk yarns treated with melamine and formaldehyde at a molar ratio of 1:3 for trimethylolmelamine were investigated. Sericin was fixed during the fixing process, but a part of sericin I was removed simultaneously by hot water. The weight losses by fixing and the degumming losses by degumming greatly decreased with increasing concentrations of melamine and formaldehyde. The silk yarns fixed with 0.011 M melamine and 0.033M formaldehyde were significantly degummed due to the insufficient fixation of sericin and the alkaline hydrolysis of sericin by sodium carbonate during the degumming process. On the other hand, the silk yarns fixed with 0.055M melamine and 0.165M formaldehyde were degummed slightly (the degumming losses of 3-8%) due to the strong fixation of sericin, which might result from the many cross-linkages between the sericin I molecules, which were formed by trimethylolmelamine. Those fixed with the fixing solution containing 15% owf softener showed the lowest weight and degumming losses because under the condition of 15% owf softener, the cation of the softener can effectively form ionic bonds with the negatively charged side chain of aspartic acid in sericin. In addition, van der Waals' forces may be also formed between the hydrophobic tail of the softener and the hydrophobic region of sericin, which may help inhibit the removal of sericin I.

트리메틸올멜라민에 의한 세리신 정착 거동을 고찰하기 위해 멜라민과 포름알데하이드를 몰 비 1:3으로 세리신정착액을 조성하여 실크 생사를 정착시켰고, 정련에 의해 세리신 정착 거동을 살펴보았다. 정착 과정에서 세리신의 정착이 일어나는 동시에 열수에 의해 세리신 I의 일부가 제거되었다. 정착 중의 감량과 정련에 의한 연감율은 멜라민과 포름알데하이드의 농도가 증가할수록 크게 감소했다. 0.011몰 멜라민과 0.033몰 포름알데하이드로 정착한 실크 생사는 불충분한 정착과 탄산나트륨에 의한 세리신의 알칼리 가수분해로 인해 많은 정련이 일어났다. 그러나 0.055몰 멜라민과 0.165몰 포름알데하이드로 정착한 실크 생사는 강한 세리신 정착으로 인해 3-8%의 매우 적은 연감율을 보였는데 이는 트리메틸올멜라민에 의해 세리신 I 분자 간에 많은 가교결합이 형성되었기 때문으로 사료된다. 또한 15% owf 유연제의 정착액으로 처리한 경우 정착에 의한 감량과 정련에 의한 연감율이 가장 작게 나타났는데 이는 유연제의 양이온이 세리신 중의 아스파르트산의 음이온과 이온결합을 형성하고 유연제의 소수부와 세리신의 소수성 영역 간에 반데르바알스력이 형성되어 세리신 I의 제거가 다소 억제된 것으로 사료된다.

Keywords

References

  1. H. Teramoto, A. Kakazu, T. Asakura, "Native structure and degradation pattern of silk sericin studied by 13C NMR spectroscopy", Macromol., 39, pp. 6-8, 2006. DOI: https://doi.org/10.1021/ma0521147
  2. H. J. Jin, D. L. Kaplan, "Mechanism of silk processing in insects and spiders", Nature, 424, pp. 1057-1061, 2003. DOI: https://doi.org/10.1038/nature01809
  3. K. U. Sprange, "Bombyx mori silk proteins: Characterization of large polypeptides", Biochemistry, 14, pp. 925-931, 1975. DOI: https://doi.org/10.1021/bi00676a008
  4. R. Voegeli, J. Meier, R. Blust, "Sericin silk protein: unique structure and properties", Cosmet. Toilet, 108, pp. 101-108, 1993.
  5. G. Y. Park, "A study on the sericin fixation of raw silk fibers by fixing with the mixtures of various amines and formalin", J. Kor. Soc. Dyers Finishers, 21, pp. 67-72, 2009. DOI: https://doi.org/10.5764/tcf.2009.21.1.067
  6. G. Y. Park, "The sericin fixation of raw silk fabrics by fixing with the mixture of melamine and formalin", J. Kor. Fiber Soc., 46, pp.30-34, 2009.
  7. M. Lewin, E. M. Pearce, Handbook of fiber science and technology, pp. 593-658, vol. 4, Dekker, New York and Basel, 1985.
  8. K. Komatsu, "Dissolution behavior and structural characteristic of silk sericin", Bull. Sericult. Exp. Sta., 26, pp. 135-156, 1975.
  9. T. Wang, J. Wang, J. Zhou, "X-ray study on the sericin structure of cocoon silk", Fangzhi Xuebao, 6, pp. 133-134, 1985.
  10. The Key Centre for Polymer Colloids, Australian Research Council's Research Centres Program, Available From: http://discovery.kcpc.usyd.edu.au/9.5.5/9.5.5_cationic.html (accessed Jan., 25, 2001)
  11. A. K. R. Choudhury, Textile preparation and dyeing, pp. 759-776, Science Publishers, Enfield, 2006.
  12. R. Nastke, K. Dietrich, G. Reinisch, G. Rafler, H. Gajewski, "The Initial Stage of the Reaction of Melamine with Formaldehyde", J. Macromol. Sci.: Part A, 23, pp. 579-596, 1986. DOI: https://doi.org/10.1080/00222338608058497
  13. A. Berge, T. Mejdell, "Melamine formaldehyde compounds. The active species in acid catalyzed reactions", Polymer, 47, pp. 3249-3256, 2006. DOI: https://doi.org/10.1016/j.polymer.2006.02.054
  14. H. P. Wohnsiedler, "Urea-Formaldehyde and Melamine-Formaldehyde Condensations", Ind. Eng. Chem., 44, pp. 2679-2686, 1952. DOI: https://doi.org/10.1021/ie50515a053