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Method for improving the properties of a paper product and forming an additive component and the corresponding paper product and additive component and use of the additive component

A technology of paper products and additives, applied in textiles and papermaking, natural cellulose pulp/paper, post-treatment modification of cellulose pulp, etc., can solve the problems of uneconomical and environmentally friendly transportation of nanocellulose, and achieve easy application, Produces good, maintained tensile strength effects

Inactive Publication Date: 2012-12-05
UPM-KYMMENE OYJ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transportation of nanocellulose with high water content is neither economical nor environmentally friendly

Method used

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  • Method for improving the properties of a paper product and forming an additive component and the corresponding paper product and additive component and use of the additive component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] In an integrated pulping process and paper mill based on figure 1 The process flow diagram provided in Form Paper Product and Additive Components.

[0049] The formulation process comprises a per se known chemical treatment step (2) of the wood raw material, wherein the chemical treatment is used to form a chemical cellulose fiber based pulp from the hardwood raw material. In the refining step (4) the chemical cellulose fiber based pulp is refined by means of at least one refining device known per se, here a conical refiner. In an alternative embodiment, in a pre-classification treatment step (3) prior to refining (4), the cellulose fiber-based pulp is subjected to a pre-classification treatment, for example by means known per se and based on screening techniques. In the separation step, ie classification treatment step (5), the fraction of fine fibers with a size less than 0.2 mm is separated from the cellulose fiber based pulp by means of per se known equipment and b...

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Abstract

The invention relates to a method for improving the properties of a paper product and to the corresponding paper product, wherein the paper product is formed from a fiber-based material. According to the invention the fines fraction is separated from chemical cellulose fiber -based pulp substantially after refining, and the cellulose fiber -based pulp from which the fines fraction has been separated is formed into the paper product in a papermaking apparatus. In addition, the invention relates to a method for manufacturing an additive component and to the corresponding additive component.

Description

technical field [0001] The present invention relates to a method of improving the properties of a paper product as defined in the preamble of claim 1, a paper product as defined in the preamble of claim 8, a method of forming an additive composition as defined in the preamble of claim 10, a method of forming an additive composition as defined in the preamble of claim 17, The defined additive components and the use of the additive components defined in the preamble of claim 18. Background technique [0002] Different processes for making paper from different pulps are known from the prior art. [0003] In addition, it is known from the prior art to improve the properties of paper by incorporation of different filling and coating materials such as pigments in papermaking. It is known that in papermaking the aim is to provide the paper with the best possible properties considering the use. For example, in conventional copy paper manufacture, the aim is to improve the dewatera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H15/02D21D99/00D21C9/00
CPCD21D99/00D21H15/02D21H11/18D21H11/00
Inventor I·卡加恩特A·贝尼埃嫩
Owner UPM-KYMMENE OYJ