03543nas|a2200505 i 4500 20260817171137.0 030124s2002 th u m rtt 00| a1eng d .b1187479x AIT Thesis no.PP-02-8 Yos Tungkaserawong Basis weight reduction of newsprint Bangkok : Asian Institute of Technology, 2002 58 leaves Thesis ; no. PP-02-8 Thesis (M.Sc.) - Asian Institute of Technology, 2002 A thesis submitted in pa1tial fulfillment of the requirements for the degree of Master of Science. During recent years, there has been a continuous trend to lower the basis weight of newsprint. The reduction of transportation, raw materials and handling costs is the main reason that is motivating this development. With this consideration in view, the effects of basis weight reduction on sheet properties for deinked newsprint furnishes were evaluated. Raw materials used were old newspapers (ONP) from Thailand, East Coast and West Coast of U.S., old magazines (OMO) and chemi-thermomechanical pulp (CTMP). Mill's furnish was also used for comparison. Basis weights were varied from 35 g/m2 - 50 g/m2 . Nearly all paper properties are deteriorated with reducing basis weight, bending stiffness, tensile strength and opacity were found to be the most critical properties that needed to be concerned. In order to maintain or improve some of these critical prope1ties, the mixtures of furnish compositions and pulp refining can be one of the alternatives. By adding ONP from Thailand, the opacity can be improved, and adding OMO can enhance the paper strength. Fmthermore, adding CTMP fiber can improve bulk and stiffness. However, the deterioration of other properties should also be considered case by case. Newsprint Weight loss Paperweights Retulainen, Elias, Chairperson Nazhad, Mousa M., Examination Committee Mauno Ruhanen, Examination committee Government of Finland, Scholarship donor Asian Institute of Technology, Scholarship donor Asian Institute of Technology. Thesis ; no. PP-02-8 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B07428 .b1187479x mnait u 240403 0 030124 m a u 0 mnait mnait mnait mnait mnarc 20 22 40 Barcode : 30050120932966 CREATED : 2003-01-24 RECORD # : i12313592 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120685275 CREATED : 2014-05-21 RECORD # : i12801835 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160025820 CREATED : 2016-03-18 RECORD # : i12898120 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050121018088 CREATED : 2020-08-28 RECORD # : i13291324 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050121018096 CREATED : 2020-08-28 RECORD # : i13291336 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 11098 11098 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no.PP-02-8 30050120932966 2026-08-17 17:11:37 1 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no.PP-02-8 30050120685275 2026-08-17 17:11:37 3 2026-08-17 22 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no.PP-02-8 30050160025820 2026-08-17 17:11:37 2026-08-17 40 0 0 0 0 MAIN MAIN mnait 2026-08-17 0 AIT Thesis no.PP-02-8 30050121018088 2026-08-17 17:11:37 2 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 0 AIT Thesis no.PP-02-8 30050121018096 2026-08-17 17:11:38 4 2026-08-17 20