Process for producing optically brightened paper

Details Process for producing optically brightened paper Process for producing optically brightened paper

D - Textiles, Paper

21

H

D21H 21/28 (2006.01)

Patent

CA 2636234

The instant invention relates to a process for the production of optically brightened paper by treating the pulp suspension with an optically brightened filler composition comprising optically brightened plastic fibres, preferably polyester fibres, which leads to a surprising high lightfastness of the resulting paper.

La présente invention concerne un procédé de production de papier optiquement éclairci en traitant la suspension de pâte à papier avec une préparation de charge optiquement éclaircie comprenant des fibres plastiques optiquement éclaircies, préférentiellement des fibres de polyester, ce qui permet d'obtenir une solidité à la lumière étonnamment élevée du papier résultant.

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