색지 폐지의 탈색에 의한 표백펄프의 재생방법

Development of Decolorizing Method for Color Ledger

  • 윤병태 (한국화학연구소 펄프제지연구센터) ;
  • 류정용 (한국화학연구소 펄프제지연구센터) ;
  • 신종호 (한국화학연구소 펄프제지연구센터) ;
  • 송봉근 (한국화학연구소 펄프제지연구센터) ;
  • 김태준 ((주)날코 코리아) ;
  • 전양 (충남대학교 농과대학 임산공학과)
  • 발행 : 2000.06.01

초록

This study was to get the optimum conditions on bleaching by mixing of various colored ledgers with white ledger by 50:50 ratio. This bleaching was carried out by two steps, reductive-oxidative process was shown a better brightness compared to oxidative-reductive one. Especially, in reductive bleaching using sodium hydrosulfite, the aging temperature should keep above 6$0^{\circ}C$ irrespective of aging time, alkaline condition was more effective than acid one. Final brightness after bleaching and feinting was obtained over 78% to be used by the raw pulp of tissue.

키워드

참고문헌

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