Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
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Half-degumming Behaviors of Raw Silk Yarns Degummed with Soap and Alkalis

비누와 알칼리에 의한 실크 생사의 반숙정련 거동

  • Park, Geon-Yong (Dept. of Fashion Design & Textile Eng., Chungwoon Univ.)
  • 박건용 (청운대학교 패션디자인섬유공학과)
  • Received : 2010.06.03
  • Accepted : 2010.09.15
  • Published : 2010.12.27
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Abstract

To investigate the half-degumming of raw silk, the degumming was carried out with soap or sodium carbonate or sodium bicarbonate and some mixed agents at $80^{\circ}C$ for 15 and 30 minutes. With soap of 20~25%o.w.f. degumming losses were about 7~12%. Degumming losses with sodium carbonate of 2~5%o.w.f. were about 6~15%. And about 6~12% wright losses were observed in the degumming with sodium bicarbonate of 20~30%o.w.f. In the degumming with the mixed degumming agents of soap and sodium carbonate, degumming losses were 9~15% with 5%o.w.f. soap and 2~5%o.w.f. sodium carbonate. Sodium carbonate was more effective on the removal of sericin from raw silk than soap. During drying generally half degummed silk yarns stuck together to result in harsh and hard lumps by the adhesion and solidification of the residue sericin of partially degummed silk. Sodium hydrosulfite in degumming agent effectively protected the adhesion of half degummed silk yarns.

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References

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  2. Effect of Processing Conditions on the Homogeneity of Partially Degummed Silk Evaluated by FTIR Spectroscopy vol.26, pp.1, 2013, https://doi.org/10.7852/ijie.2013.26.1.054
  3. Half-Degumming of Raw Silk Yarns Degummed after Fixing Sericin with Formaldehyde vol.49, pp.5, 2012, https://doi.org/10.12772/TSE.2012.49.5.301
  4. Effect of Surfactant on Homogeneity of Partially Degummed Silk Fiber vol.28, pp.1, 2014, https://doi.org/10.7852/ijie.2014.28.1.19