EFFECT OF ALUM-CATIONIC ROSIN CONSUMPTION LEVEL ON THE PROPERTIES OF PAPERS MADE FROM RECYCLED WHITE PAPER TRIMMINGS

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NAIJIAN F.; RESALATI H.; RUDI H.R.; JALALI TORSHIZI H.; NAZERIAN M.

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Journal: Iranian Journal of Wood and Paper Science Research Year:2017 | Volume:32 | Issue:2 Page(s): 238-250

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Title

EFFECT OF ALUM-CATIONIC ROSIN CONSUMPTION LEVEL ON THE PROPERTIES OF PAPERS MADE FROM RECYCLED WHITE PAPER TRIMMINGS

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Keywords

ROSINQ2

ALUMQ1

PAPER PROPERTIESQ1

RECYCLED FIBERSQ1

WHITE SHEETS TRIMMINGSQ1

CONTACT ANGLEQ1

Abstract

Nowadays, RECYCLED FIBERS are the main fiber source for the manufacturing of white top packaging papers. Sizing of such papers, based on the type of application, is of great importance. In this research, the effect of ALUM-cationic ROSIN consumption amount at the pH of about 6.5 on the properties of papers made from WHITE SHEETS TRIMMINGS was examined. In order to optimize the consumption, pulp suspension sizing with ALUM in six levels of 0, 4, 5, 7, 8, and 10%, and ROSIN with the ratio of 50% of ALUM based on oven dry (OD) weight of pulp was applied according to the TAPPI standard methods. Then handsheets with basis weight of about 65±5 g/m2 were prepared and their Cobb test (45 second), structural and strength characteristics were measured. Statistical analysis of the results have shown that ALUM and ROSIN consumption of about 7 and 3.5% based on OD pulp is the suitable level for internal sizing of white trimmings fiber sheets. In these ALUM-ROSIN level, Cobb value of papers decreased from 120±11.6 g/m2 to the lowest value of about 64±9.7 g/m2. CONTACT ANGLE of water droplet on the paper surface increased from 24.81o to 96.53o. Paper tensile index decreased up to 125±9.7 N.m/g by such sizing level and again increased with increasing ALUM-ROSIN level. Such phenomena can be attributed to the role of ALUM in charge neutralizing, cellulosic fines retention and improving bonding ability of paper network. Meaningful decrease of paper surface roughness from 10.34±0.54 mm in control sample to 8.23±1.37 mm in sized papers in optimized level confirmed at this assumption.

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APA: Copy

NAIJIAN, F., RESALATI, H., RUDI, H.R., JALALI TORSHIZI, H., & NAZERIAN, M.. (2017). EFFECT OF ALUM-CATIONIC ROSIN CONSUMPTION LEVEL ON THE PROPERTIES OF PAPERS MADE FROM RECYCLED WHITE PAPER TRIMMINGS. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 32(2), 238-250. SID. https://sid.ir/paper/109924/en

Vancouver: Copy

NAIJIAN F., RESALATI H., RUDI H.R., JALALI TORSHIZI H., NAZERIAN M.. EFFECT OF ALUM-CATIONIC ROSIN CONSUMPTION LEVEL ON THE PROPERTIES OF PAPERS MADE FROM RECYCLED WHITE PAPER TRIMMINGS. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2017;32(2):238-250. Available from: https://sid.ir/paper/109924/en

IEEE: Copy

F. NAIJIAN, H. RESALATI, H.R. RUDI, H. JALALI TORSHIZI, and M. NAZERIAN, “EFFECT OF ALUM-CATIONIC ROSIN CONSUMPTION LEVEL ON THE PROPERTIES OF PAPERS MADE FROM RECYCLED WHITE PAPER TRIMMINGS,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 32, no. 2, pp. 238–250, 2017, [Online]. Available: https://sid.ir/paper/109924/en

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