Skip to Main Content
Micro and colloidal stickie pacification with precipitated calcium carbonateAuthor(s): John H. Klungness; Roland L. Gleisner; Marguerite Sykes
Source: Paper technology. (Oct. 2004): Pages 29-33.
Publication Series: Miscellaneous Publication
PDF: View PDF (707 KB)
DescriptionThe colloidal stickies which build up in mill process water during pulping are problematic and difficult to remove. The USDA Forestry Service examined precipitated calcium carbonate (PCC) as a means to ameliorate process water stickies, comparing: i) the effectiveness of PCC added directly into a slurry of deinked pulp with ii) in situ precipitation of PCC by the fibre loading method. It was found that without retention aids, fibre loaded PCC resulted in the greatest attraction of colloidal stickies to pulp - following the high-consistency refining required for fibre loading. Also, without retention aids, fibre loaded PCC was the most effective in masking stickies in handsheets. But under the conditions used, PCC, either added directly or fibre loaded, was no more effective than retention aids in removing colloidal stickies from mill water.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationKlungness, John H.; Gleisner, Roland L.; Sykes, Marguerite, S. 2004. Micro and colloidal stickie pacification with precipitated calcium carbonate. Paper technology. (Oct. 2004): Pages 29-33.
KeywordsStickies, calcium carbonate, precipitated calcium carbonate, colloidal stickies, PCC
- Micro and colloidal stickie pacification with precipitated calcium carbonate
- Lightweight, high-opacity paper : process costs and energy use reduction
- Stickie removal using neutral enzymatic repulping pressure screening
XML: View XML