Reduction of sticky deposits by neutral deinking from recovered reduction of sticky deposits by neutral deinking from recovered paper

Belkis Sulbaran, Alma Saucedo, Hader Alzate Gil, Virgilio Zúñiga Grajeda, José Turrado Saucedo

Research output: Contribution to journalArticle in an indexed scientific journalpeer-review


Producto derivado del proyecto con radicado 265B-09/14-21
In this study, the behaviour of stickies generated in the process of obtaining pulp from a mixture of recovered office paper, newspaper, and magazine paper by neutral deinking was tested. The impact of deinking under neutral conditions and how the addition of surfactants affect- ed the process were analyzed. Adhesive deposits are contaminants generated in the papermaking process from recovered fibres and are a result of the adhesives used in the previous steps of papermaking, resins from inks, resins used as adhesives for book and magazine bind- ings, and resins used to facilitate various paper uses. In this study, the elimination of adhesive deposits using fatty alcohol ethoxylate-type surfactants and fatty acid ethoxylates using a flotation deinking process under neutral conditions was tested. Results from adhesive deposit retention tests showed that these deposits decreased as surfactants were applied, obtaining 36% elimination in the best-case scenario. INTRODUCTION
Original languageSpanish (Colombia)
Pages (from-to)6-11
Number of pages6
JournalJournal of Science & Technology for Forest Products and Processes:
Issue number6
StatePublished - 2020

Types Minciencias

  • Outreach articles

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