Method for fixing a mineral filler on cellulosic fibers and method for making a sheet of paper

   
   

The invention relates to a method for affixing a mineral filler onto an aqueous cellulose-fiber suspension. In this invention, the method uses as its reaction medium an aqueous cellulose-fiber suspension which is derived from papermaking and which includes at least hydrogen carbonates, carbonates or silicates of alkali and/or earth alkali metals, and the invention adds to the reaction medium a hydroxide of the filler mineral in order to precipitate the mineral filler's carbonates or silicates onto the fibers. In particular, the invention applies to papermaking.

A invenção relaciona-se a um método para affixing um enchimento mineral em uma suspensão aqueous da celulose-fibra. Nesta invenção, os usos do método como seu meio da reação uma suspensão aqueous da celulose-fibra que sejam derivadas do papermaking e que inclua ao menos carbonatos do hidrogênio, carbonatos ou silicatos do alcalóide e/ou metais do alcalóide da terra, e a invenção adicionam ao meio da reação um hydroxide do mineral do enchimento a fim precipitate os carbonatos ou silicatos do enchimento mineral nas fibras. No detalhe, a invenção aplica-se ao papermaking.

 
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