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NTIS 바로가기청정기술 = Clean technology, v.24 no.1, 2018년, pp.1 - 8
김태완 (서울대학교 화학생물공학부, 화학공정신기술연구소) , 박건환 (서울대학교 화학생물공학부, 화학공정신기술연구소) , 공원배 (서울대학교 화학생물공학부, 화학공정신기술연구소) , 이윤우 (서울대학교 화학생물공학부, 화학공정신기술연구소)
As the social demands for environmental pollution increase and regulations on the dyeing process wastewater are strengthened, supercritical dyeing process has been attracting attention as an alternative technology to reduce wastewater and energy consumption. In the supercritical dyeing process where...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
초임계 염색 공정이 주목받는 이유는? | 환경 오염에 대한 사회적 요구가 증가하고 염색 공정 폐수 배출에 대한 규제가 강화되면서 기존 수계 염색에서 발생하는 다량의 폐수와 에너지 낭비를 근본적으로 해결하기 위한 대안으로 초임계 염색 공정이 주목 받고 있다. 초임계 염색 공정에서는 기존 수계 염색에서 염색 용매인 물 대신 이산화탄소만을 사용하기 때문에 발생하는 폐수가 전혀 없고 미 고착 염료와 이산화탄소를 재사용 할 수 있다는 점에서 친환경적이다. | |
대부분 자외선/가시광선 분광계를 이용해 농도를 측정하는 이유는? | 분산염료의 경우 초임계 이산화탄소에 용해가 비교적 잘 된다고 해도 그 용해도는 몰분율이 10-7 ~ 10-5 수준으로 장치의 규모가 작을 경우 정량 분석 시 측정오차가 크다. 따라서 대부분 자외선/가시광선 분광계를 이용해 농도를 측정하게 된다. | |
초임계 염색 공정의 특징은? | 환경 오염에 대한 사회적 요구가 증가하고 염색 공정 폐수 배출에 대한 규제가 강화되면서 기존 수계 염색에서 발생하는 다량의 폐수와 에너지 낭비를 근본적으로 해결하기 위한 대안으로 초임계 염색 공정이 주목 받고 있다. 초임계 염색 공정에서는 기존 수계 염색에서 염색 용매인 물 대신 이산화탄소만을 사용하기 때문에 발생하는 폐수가 전혀 없고 미 고착 염료와 이산화탄소를 재사용 할 수 있다는 점에서 친환경적이다. 또한 염색 이후 추가적인 건조공정 없이 건조된 섬유를 얻을 수 있어 에너지 소비를 줄일 수 있다. |
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