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자료유형
학술저널
저자정보
안치덕 (국민대학교) 서진호 (국민대학교) 김형진 (국민대학교) 정성현 (전주페이퍼)
저널정보
한국펄프·종이공학회 펄프·종이기술 펄프·종이기술 제46권 제3호
발행연도
2014.6
수록면
20 - 27 (8page)

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Nowadays, the bleaching techniques of thermomechanical pulp(TMP) are fast developing on the strength of some benefits, mainly on low production cost and good fiber property. In this study, the optimum concentration of bleaching chemicals and the environmental load of bleaching wastes were considered to improve the bleaching efficiency of thermomechanical pulp using Korean redpine(Pinus densiflora) under the peroxide-based bleaching system. The optical property of TMP after bleaching was planned to use higher grade of paper, like printing & writting paper, not general newspaper.
The concentration of bleaching chemicals, NaOH, Na2SiO3 and EDTA, in hydrogen peroxide bleaching system, on the basis of O.D. pulp was closely influenced on the improvement of TMP brightness. Final target of bleaching efficiency was set up to above 76%-ISO brightness. The optimal target brightness of Korean redpine TMP was reached to 76.45%-ISO under the conditions of H2O2 7% with NaOH 2.20%, Na2SiO3 0.63% and EDTA 0.02%. The concentration of NaOH, Na2SiO3 and EDTA was correlated functional to the residual peroxide content of wastewater, pH value and electric conductivity of TMP fibers after bleaching treatment. The optimal bleaching conditions by controlling the addition amount of chemicals were positively contributed to the brightness stabilization and environmental load of TMP.

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UCI(KEPA) : I410-ECN-0101-2015-580-001658926