Softwood craft fibre with improved whiteness and brightness and methods of its production and use

FIELD: pulp and paper industry.

SUBSTANCE: disclosed is bleached craft fiber from conifer species wood cellulose with high content of alpha-cellulose and higher brightness and whiteness.

EFFECT: invention also describes methods for production of craft fibres and products manufactured from it.

19 cl, 12 tbl, 7 ex

 



 

Same patents:

The invention relates to biotechnology; multicomponent system for mediated mediated enzymatic oxidation includes (a) an oxidation catalyst chosen from the group margantsovistyh oxidase, (b) an oxidizing agent chosen from the group comprising oxygen and oxygen-containing compounds, b) the mediator from the group of compounds containing Mn ions

The invention relates to the field of pulp and paper production and concerning the technology of bleaching of sulphate pulp from deciduous or coniferous wood, or a mixture thereof

The invention relates to the pulp and paper industry and can be used in the manufacture of bleached sulfite cellulose magnesium base for the production of paper with the increased demand for white

The invention relates to the field of pulp and can be used to produce bleached pulp without using chlorine-containing reagents, molecular chlorine, and chlorine dioxide (TCF - cellulose)

The invention relates to the pulp and paper industry and can be used in the production of bleached pulp by bleaching with ozone pre-treatment of unbleached pulp with oxygen in an alkaline medium

The invention relates to a method of processing fibrous mass of a chemical reagent and installation for its implementation and can be used in the pulp and paper industry for processing pulp bleaching reagent

The invention relates to a method for producing bleached pulp, and to a new and environmentally acceptable method for the delignification and bleaching of lignocellulosic pulp, which eliminates the need to use chlorine gas and it turns out the pulp with acceptable strength

The invention relates to a method of bleaching lignocellulosic slurry in which the slurry is treated at a pH from 1 to 7 in the presence of compounds of magnesium, after which the pulp is washed and subsequently peroxide-based bleach connection

The invention relates to a method of processing wood pulp, and more particularly, to method the oxygen delignification of unbleached pulp with getting vysokodiversifitsirovannyj pulp without undesirable influence on its durability

FIELD: pulp and paper industry.

SUBSTANCE: disclosed is bleached craft fiber from conifer species wood cellulose with high content of alpha-cellulose and higher brightness and whiteness.

EFFECT: invention also describes methods for production of craft fibres and products manufactured from it.

19 cl, 12 tbl, 7 ex

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