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Full characterization of stickies in a newsprint mill: the need for a complementary approach

Blanco Suárez, Ángeles and Miranda Carreño, Rubén and Negro Álvarez, Carlos Manuel and García Suárez, Concepción and García-Prol, Marta and Sánchez, Álvaro (2007) Full characterization of stickies in a newsprint mill: the need for a complementary approach. Tappi Journal, 6 (1). pp. 19-25.

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Abstract

To ensure paper machine runnability, trouble-free converting, and high quality products, stickies must be removed during stock preparation of recycled pulp. However, the stickies removal efficiency along the process is not easy to assess since there are many different types of stickies that have to be considered in mill stickies audit. Total stickies, macro-stickies, micro-stickies, and secondary stickies are quantified by different methods.
Macro-stickies allow us to monitor the removal efficiency of the process while micro-stickies and secondary stickies predict the deposition potential of the pulp under different conditions. Micro-stickies predict calcium-soap deposits and secondary stickies predict the destabilization of the dissolved and colloidal material. Cationic demand only predicts a certain type of stickies. Therefore, an integrated approach for the full characterization of stickies throughout the papermaking process is necessary.


Item Type:Article
Uncontrolled Keywords:Paper recycling, Stickies, Recovered paper, Macro-stickies, Micro-stickies, Seconary stickies
Subjects:Sciences > Chemistry > Chemical engineering
Sciences > Chemistry > Environmental conditions
Sciences > Chemistry > Analytic chemistry
Sciences > Chemistry > Paper industry
ID Code:11883
Deposited On:19 Jan 2011 12:31
Last Modified:06 Feb 2014 09:12

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