Establishing the Techniques to Relate Paper Machine Issues To Colloidal Microstickies

摘要

Since the increased use of recycle fiber into the paper making process the industry has desired the ability to relate runnability issues associated with the quality of the incoming recovered paper. A new technology that measures colloidal organic solids has been developed by IPST at Georgia Tech. The new technology which is based on a combination of fractionation and measurement of total organic carbon (TOC) has the potential for on-line effective measurement of micro-organic accumulation and is currently being validated under mill scale conditions for packaging, newsprint, and tissue paper grades. This paper will review how the accumulated colloidals from pulping and recirculation in the process can be related to paper machine runnability. The colloidal organic material manifests itself in visible ways such as stickies, deposition onto the machine (wires, foils, and felts), sheet holes, build-up on scanners and poor runnability. The objective of this paper is to show how protocols can be established for monitoring this dynamic colloidal organic solids and relating these measurements to paper machine runnability.