PROCESS FOR MANUFACTURING PAPER

The invention relates to a process for manufacturing paper and board comprising providing a suspension comprising cellulosic fibres and at least a sizing agent, dewatering said suspension thereby forming a paper-web, whereby an aromatic-containing cationic vinyl addition polymer, and an anionic poly...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: HANS E. JOHANSSON-VESTIN
Format: Patent
Sprache:eng ; spa
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Beschreibung
Zusammenfassung:The invention relates to a process for manufacturing paper and board comprising providing a suspension comprising cellulosic fibres and at least a sizing agent, dewatering said suspension thereby forming a paper-web, whereby an aromatic-containing cationic vinyl addition polymer, and an anionic polymer having a weight average molecular weight in the range of from 6,000 up to about 100,000 selected from the group consisting of vinyl addition polymers and condensation polymers is added to the suspension. La invencion se relaciona con un proceso para fabricar papel y carton, que comprende proporcionar una suspension que comprende fibras celulosicas y cuando menos un agente de apresto, deshidratacion de la suspension, formando de esta manera una trama de papel, mediante lo cual un polimero de adicion de vinilo cationico que contiene aromatico, y un polimero anionico que tiene un peso molecular promedio en peso en la escala de 6,000 hasta aproximadamente 10,00 seleccionado del grupo que consiste en polimeros de adicion de vinilo y polimeros de condensacion se anade a la suspension.