Comparison of Birch, Eucalyptus and Acacia pulps for offset printing | |
| Author | Andy Wibowo Alias Alan Soeparjan |
| Call Number | AIT Thesis no.PP-04-05 |
| Subject(s) | Acacia Birch Eucalyptus Paper--Printing properties Offset printing |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. PP-04-05 |
| Abstract | The printability of Acacia handsheets was studied in comparison to Birch and Eucalyptus. Sheets of Acacia, Birch and Eucalyptus were made without and with different filler dosages (10%, 15%, 20%), different consistencies (standard and head box consistency). Pine addition as much as 10% to Acacia and Eucalyptus was also studied. Pulps were also fractionated to get the fraction with same fiber length distribution and were studied. Properties that were measured are structural properties (density, formation, smoothness, air permeability), strength properties (tensile, tear, bending stiffness, surface strength), optical properties (brightness, opacity, light scattering coefficient) and print quality (ink transfer, print density, print gloss). The samples were made using the same treatment and were printed by using IGT to measure the ink requirement, print density and print gloss. Result show that Birch has the lowest ink requirement to achieve certain level of print density followed by Acacia and Eucalyptus. Pine addition increases the runnability of Acacia and Eucalyptus but the best runnability still belong to Birch. Acacia and Eucalyptus are better than Birch in term of light scattering that corresponds to opacity. Acacia sheets have the best print gloss and Eucalyptus sheets have the highest bending stiffness index. Filler promotes printability because it reduces pores variation that may increase the print evenness. Surface strength of Acacia and Eucalyptus are similar but lower than Birch. |
| Year | 2004 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. PP-04-05 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Pulp and Paper Technology (PP) |
| Chairperson(s) | Nazhad, Mousa M. |
| Examination Committee(s) | Kolehmainen, Heikki; Lehtinen, Esa; Malinen, Raimo O. |
| Scholarship Donor(s) | Government ofFinland;AIT Fellowship |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2004 |