The influence of a Fisher-Tropsch wax emulsion on the linting propensity of Newsprint

摘要

Linting is the removal of poorly bonded material from the surface of a paper sheet. This material can then be deposited on the printing press. Linting is a problem in offset printing and can reduce production efficiency. The amount of linting is influenced by the strength of fibre-to-fibre bonding on the paper surface. There is currently no standard method to determine linting. Different types of tests that all are related to testing inter-fibre bonding strength on the surface of the paper were applied here to measure linting. A Fisher-Tropsch wax emulsion was tested as an anti-linting agent. The Fischer-Tropsch wax emulsion showed great potential as an anti-linting agent and appeared to improve the fibre-to-fibre bonding strength on the paper surface when added to the wet-end during papermaking. The Fischer-Tropsch wax emulsion also appeared to show increased lint reduction when compared to a Polyamidoamine-epichlorohydrin (PAAE) resin added at the concentration recommended by the supplier for optimum performance and the same manufacturing conditions.