A method of producing mechanical pulp and the mechanical...

Details A method of producing mechanical pulp and the mechanical... A method of producing mechanical pulp and the mechanical...

D - Textiles, Paper

21

B

D21B 1/02 (2006.01) D21C 5/00 (2006.01)

Patent

CA 2497904

A method of producing mechanical pulp, comprising impregnation of fiber material with an enzyme-containing aqueous liquid prior to defibration and refining of the fiber material to produce a mechanical pulp. According to the invention, said enzyme-containing aqueous liquid is a pectinase-containing aqueous liquid. The invention is also related to the mechanical pulp thus produced.

L'invention concerne un procédé de production de pâte mécanique consistant, préalablement au défibrage, à imprégner un matériau fibreux d'un liquide aqueux contenant une enzyme, et à raffiner le matériau fibreux afin de produire une pâte mécanique. Selon l'invention, le liquide aqueux contenant l'enzyme est à base de pectinase. L'invention concerne aussi la pâte mécanique ainsi obtenue.

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