Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Application of an Organic/Inorganic Deliming Agent to Reduce the Content of Ammonia Gas

암모니아 가스 저발생을 위한 유/무기산계 탈회제 적용 연구

  • Kim, Ho Soo (Korea Institute of Footwear & Leather Technology) ;
  • Park, Min Seok (Korea Institute of Footwear & Leather Technology) ;
  • Shin, Su Beom (Korea Institute of Footwear & Leather Technology) ;
  • Kang, Chan Sol (Department of Textile Materials Engineering, Shinhan University)
  • Received : 2022.08.02
  • Accepted : 2022.08.26
  • Published : 2022.08.31
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Abstract

In this study, we used a series of organic/inorganic acids as deliming agents, alone and in combination. Additionally, deliming was conducted to obtain the optimal mixing ratio of the deliming agents (Sample IV). The heat shrinkage temperature, Ca content, and ammonia gas content were measured and evaluated. Following deliming using Sample IV, the crust was manufactured via pickling, tanning, dyeing, and fatliquoring. The optimal deliming effect was observed when the deliming agent content was 3.0%, tensile strength was 2.4 kgf/mm2, tear strength was 6.8 kgf/mm, and heat shrinkage temperature was 106 ℃. Further, the ammonia content significantly decreased from 342.6 to 4.1 ppm. The environmental impact assessment indicated that when applying the deliming agent used in this study, the total nitrogen content is ~12 times less than that of the existing deliming agent.

Keywords

References

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