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New strategy for the production of packaging from recycled fibers

The paper industry needs to implement several concurrent strategies. In particular, the industry can be expected to view recycling as a central part of its activities. These activities will be focused on the intense demand of chemical and biochemical strategies to enhance bonding within paper and paperboard. Nowadays, on average, 55% of fibrous compositions for papermaking are made of recycled fibers. In this field, about 65-70% are fibrous compositions intended to be used for packaging papermaking. Corrugated cardboard is one of the most significant examples, since it is made of fluting (internal part) and test liner (external part). In test liner mills, fibrous compositions are made of 50% paper cuts from the cardboard industry and the rest of other types of paper and cardboard. Some test liner papers have low content of mineral fillers. While recycling, fibers get damaged due to the hornification phenomena and mechanical refining of the pulp (with the purpose of enhancing the mechanical properties). The producer does not have many alternatives to address this situation: to increase the quality of the pulp, to slightly refine the pulp or to add some chemical additives that enhance mechanical properties. One strategy or alternative to this situation could be biorefining processes of the pulp. The present work aims to biorefine a pulp made of recycled fibers with the purpose of restoring the mechanical properties of the industrial test liner or improving them and making possible the addition of mineral fillers in order to decrease the production costs. It was observed that, at best, the tensile strength improved by 55% with regard to the original breaking length of the industrial test liner

© Cellulose Chemistry and Technology, 2016, núm. 3-4, 449-454

Editura Academiei Romane

Author: Pèlach Serra, Maria Àngels
Delgado Aguilar, Marc
Alcalà Vilavella, Manel
Puig Serramitja, Josep
Blanco, Angeles
Mutjé Pujol, Pere
Date: 2016
Abstract: The paper industry needs to implement several concurrent strategies. In particular, the industry can be expected to view recycling as a central part of its activities. These activities will be focused on the intense demand of chemical and biochemical strategies to enhance bonding within paper and paperboard. Nowadays, on average, 55% of fibrous compositions for papermaking are made of recycled fibers. In this field, about 65-70% are fibrous compositions intended to be used for packaging papermaking. Corrugated cardboard is one of the most significant examples, since it is made of fluting (internal part) and test liner (external part). In test liner mills, fibrous compositions are made of 50% paper cuts from the cardboard industry and the rest of other types of paper and cardboard. Some test liner papers have low content of mineral fillers. While recycling, fibers get damaged due to the hornification phenomena and mechanical refining of the pulp (with the purpose of enhancing the mechanical properties). The producer does not have many alternatives to address this situation: to increase the quality of the pulp, to slightly refine the pulp or to add some chemical additives that enhance mechanical properties. One strategy or alternative to this situation could be biorefining processes of the pulp. The present work aims to biorefine a pulp made of recycled fibers with the purpose of restoring the mechanical properties of the industrial test liner or improving them and making possible the addition of mineral fillers in order to decrease the production costs. It was observed that, at best, the tensile strength improved by 55% with regard to the original breaking length of the industrial test liner
Format: application/pdf
ISSN: 0576-9787
Document access: http://hdl.handle.net/10256/12948
Language: eng
Publisher: Editura Academiei Romane
Collection: Reproducció digital del document publicat a: http://www.cellulosechemtechnol.ro/pdf/CCT3-4(2016)/p.449-454.pdf
Articles publicats (D-EQATA)
Is part of: © Cellulose Chemistry and Technology, 2016, núm. 3-4, 449-454
Rights: Tots els drets reservats. Reproduced by permission of Romanian Academy, the owner of the publishing rights
Subject: Paper -- Fabricació
Paper -- Construction
Pasta de paper -- Refinatge
Wood-pulp -- Refining
Title: New strategy for the production of packaging from recycled fibers
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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