1 AIT Asian Institute of Technology

Starch, soy protein, CMC, and PVOH as OBA carriers, and their effect on final coated paper properties

AuthorXiao, Na
Call NumberAIT Thesis no.PP-07-9
Subject(s)Paper coatings

NoteA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Pulp and Paper Technology
PublisherAsian Institute of Technology
AbstractNow days, LWC has been a hot topic for Chinese paper industry. With fast development, both the quality and technology have increased fast. In the coating technology, the thickeners and co-binders have a great influence on the final coating quality. The objectives of thesis are: 1. Comparisons of different substances chosen function as thickeners and co-binders. 2. To research how the chosen substances function as a carrier for OBA.3. To compare their effects on final coated paper properties. CMC, Soy protein, starch and PVOH are used as main binders and thickeners to make comparison. The composition of pigments or main binder kept constant in all the formulations, while the dosage and type of Starch, soy protein, CMC and PVOH were varied according to the formulation. Properties of the coating colors and coated paper properties were tested. Final conclusions and recommendations are given as PVOH: best activator for OBA, better surface properties, but higher price. Higher viscosity brand of PVOH, worse surface properties, higher ink absorption. CMC: good co-binder and effective adjuster for water retention, good OBA carrier, lower price. Starch: better viscosity activator, good OBA carrier, lower ink absorption. Soy protein: good water holding capacity, higher Pick Strength.
Year2007
TypeThesis
SchoolSchool of Environment, Resources, and Development (SERD)
DepartmentDepartment of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB))
Academic Program/FoSPulp and Paper Technology (PP)
Chairperson(s)Lehtinen, Esa;
Examination Committee(s)Malinen, Raimo O.;Nazhad, Mousa M.;
Scholarship Donor(s)Finland;AIT Fellowship;
DegreeThesis (M.Eng.) - Asian Institute of Technology, 2007


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