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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 beexpected to view recycling as a central part of its activities. These activities will be focused on the intensedemand 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 thisfield, about 65-70% are fibrous compositions intended to be used for packaging papermaking. Corrugatedcardboard 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 cardboardindustry and the rest of other types of paper and cardboard. Some test liner papers have low content ofmineral fillers. While recycling, fibers get damaged due to the hornification phenomena and mechanicalrefining of the pulp (with the purpose of enhancing the mechanical properties). The producer does not havemany alternatives to address this situation: to increase the quality of the pulp, to slightly refine the pulp or toadd some chemical additives that enhance mechanical properties. One strategy or alternative to this situationcould be biorefining processes of the pulp. The present work aims to biorefine a pulp made of recycledfibers with the purpose of restoring the mechanical properties of the industrial test liner or improving themand making possible the addition of mineral fillers in order to decrease the production costs. It was observedthat, at best, the tensile strength improved by 55% with regard to the original breaking length of theindustrial test liner

Editura Academiei Romane

Autor: Pèlach Serra, Maria Àngels
Delgado Aguilar, Marc
Alcalà Vilavella, Manel
Puig Serramitja, Josep
Blanco, Angeles
Mutjé Pujol, Pere
Resum: The paper industry needs to implement several concurrent strategies. In particular, the industry can beexpected to view recycling as a central part of its activities. These activities will be focused on the intensedemand 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 thisfield, about 65-70% are fibrous compositions intended to be used for packaging papermaking. Corrugatedcardboard 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 cardboardindustry and the rest of other types of paper and cardboard. Some test liner papers have low content ofmineral fillers. While recycling, fibers get damaged due to the hornification phenomena and mechanicalrefining of the pulp (with the purpose of enhancing the mechanical properties). The producer does not havemany alternatives to address this situation: to increase the quality of the pulp, to slightly refine the pulp or toadd some chemical additives that enhance mechanical properties. One strategy or alternative to this situationcould be biorefining processes of the pulp. The present work aims to biorefine a pulp made of recycledfibers with the purpose of restoring the mechanical properties of the industrial test liner or improving themand making possible the addition of mineral fillers in order to decrease the production costs. It was observedthat, at best, the tensile strength improved by 55% with regard to the original breaking length of theindustrial test liner
Accés al document: http://hdl.handle.net/2072/267507
Llenguatge: eng
Editor: Editura Academiei Romane
Drets: Tots els drets reservats. Reproduced by permission of Romanian Academy, the owner of the publishing rights
Matèria: Paper -- Fabricació
Paper -- Construction
Pasta de paper -- Refinatge
Wood-pulp -- Refining
Títol: New strategy for the production of packaging from recycled fibers
Tipus: info:eu-repo/semantics/article
Repositori: Recercat

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