| Author | Wang, Mei |
| Call Number | AIT Thesis no.PP-07-10 |
| Subject(s) | Paper coatings
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Pulp and Paper Technology |
| Publisher | Asian Institute of Technology |
| Abstract | Coating color and coated paper were produced by using fine ground calcium carbonate (F-GCC) (88% <1um), coarse ground calcium carbonate (C-GCC) (65% < 2um) and Aragonitic Precipitated calcium carbonate (APCC) as the main pigments, two of which mixed at different percentage in each formulation. Latex was used as binder in all 24 formulations, CMC and starch was used as co-binders in 12 formulations respectively. Brookfield viscosity of coating color and different properties of coated paper were measured in this experiment including optical properties (brightness, opacity, light scattering and gloss), surface properties (tensile properties, PPS roughness, PPS compressibility) and printability properties (ink absorption, dry pick resistance and printed gloss). The results show that pigment has major effect on the properties of coating color and coated paper, the rhombohedral shape of GCC and rod-like of APCC make different contribution while the different particle size and particle size distribution. For the pigment, results show that increasing composition of PCC, Brookfield viscosity of coating color and optical properties of coated paper increase, PPS roughness and PPS compressibility decrease. For the binders, results also show that viscosity of coating color and unprinted gloss, ink absorption of coated paper are higher on the latex/CMC binder system than that of latex/starch system. The results also show that when the calcium carbonate based coating color undergoing a linear change from different composition, the change in coating color and coating layer properties is not usually linear. |
| Year | 2007 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Pulp and Paper Technology (PP) |
| Chairperson(s) | Lehtinen, Esa; |
| Examination Committee(s) | Malinen, Raimo O.;Nazhad, Mousa M.; |
| Scholarship Donor(s) | Finland;AIT Fellowship; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2007 |