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Information Journal Paper

Title

DEINKING CHARACTERISTICS OF OLD NEWSPAPER

Pages

  143-152

Abstract

 DEINKING is important and detrimental for newspaper recycling and utilization. Since chemicals applied in DEINKING influences the removal of ink attached to fibers, the influence of two chemicals is investigated. Keyhan newspaper was deinked by oxidative DEINKING and bleaching process using three levels (1, 2, 3% based on oven dry weight of the paper) of SODIUM HYDROXIDE and three levels (1, 2, 3% based on oven dry weight of the paper) of HYDROGEN PEROXIDE. Optical properties of deinked pulp including BRIGHTNESS, YELLOWNESS and OPACITY of handsheets were measured. Results show that applying 2% NaOH and 2% H2O2 produces the highest BRIGHTNESS of deinked pulp at 61% ISO. Higher application of NaOH increases the YELLOWNESS of the deinked pulp. The highest YELLOWNESS was obtained at the highest dosage of NaOH and the lowest dosage of H2O2. However the OPACITY of the pulp produced from undeinked pulp was superior to deinked pulps.

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    • Cite

    APA: Copy

    ZIADZADEH, A., JAHAN LATIBARI, A., FAEZIPOUR, M., & PIRJANI, A.. (2008). DEINKING CHARACTERISTICS OF OLD NEWSPAPER. IRANIAN JOURNAL OF NATURAL RESOURCES, 61(1), 143-152. SID. https://sid.ir/paper/23057/en

    Vancouver: Copy

    ZIADZADEH A., JAHAN LATIBARI A., FAEZIPOUR M., PIRJANI A.. DEINKING CHARACTERISTICS OF OLD NEWSPAPER. IRANIAN JOURNAL OF NATURAL RESOURCES[Internet]. 2008;61(1):143-152. Available from: https://sid.ir/paper/23057/en

    IEEE: Copy

    A. ZIADZADEH, A. JAHAN LATIBARI, M. FAEZIPOUR, and A. PIRJANI, “DEINKING CHARACTERISTICS OF OLD NEWSPAPER,” IRANIAN JOURNAL OF NATURAL RESOURCES, vol. 61, no. 1, pp. 143–152, 2008, [Online]. Available: https://sid.ir/paper/23057/en

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