Paper and board dye phenomena using virgin and recycled fibers | |
| Author | Chaiyaratana Archavaratana |
| Call Number | AIT Thesis no.PP-03-1 |
| Subject(s) | Paper--Drying Dyes and dyeing--Paper |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science |
| Publisher | Asian Institute of Technology |
| Abstract | Paper and Board dye phenomena using virgin and recycled fibers was studied. Evaluation is done by varying of dye dosage in different dyestuff to different raw materials. Test variables in this study were the different dyes, pH and pulp origin itself (virgin or recycled pulp). Effect of recycled pulp fines on dye process was tested using removal of fines by Bauer McNett classifier. Different pulp material has different original color properties. Selection of optimum dye for a certain pulp depends on pulp type and used pH in the process. Using anionic dye with deinked pulp will create a problem of color change or possible color reversion. Anionic yellow dye in deinked pulp will reduce L* and a* value, but will increase b* value. Using anionic orange dye in deinked pulp will reduce L* and b* value, but will increase a* value. Papermaking pH has clear effect on color change (or color reversion): at pH 4 color change is on very low level, at pH 7 color change will increase, and at pH 10 color change will become a serious problem. |
| Year | 2003 |
| 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) | Viljakainen, Esa |
| Examination Committee(s) | Malinen, Raimo;Nazhad, Mousa M. |
| Scholarship Donor(s) | Thai Cane Paper Public Company Limited |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2003 |