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Natural-color straw pulp with improved freeness, air permeability and folding strength, and stable performance

A technology of folding endurance and air permeability, which is applied in the direction of non-woody plant/crop pulp, etc., can solve the problems of large fluctuation of pulp quality, low freeness and folding endurance, and inability of straw pulp to have stable performance. The effect of stable material data and small fluctuation of slurry quality

Active Publication Date: 2011-06-08
SHANDONG FUYIN PAPER & ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] In summary, straw pulp has the disadvantages of low air permeability, freeness and folding resistance, and large fluctuations in pulp quality; at the same time, bleaching and beating have obvious effects on the physical and chemical properties of straw pulp, resulting in the inability of straw pulp to have a stable performance

Method used

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  • Natural-color straw pulp with improved freeness, air permeability and folding strength, and stable performance
  • Natural-color straw pulp with improved freeness, air permeability and folding strength, and stable performance
  • Natural-color straw pulp with improved freeness, air permeability and folding strength, and stable performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0072] Embodiment 1-6 adopts ammonium sulfite method cooking

[0073] Table 11. Ammonium sulfite cooking parameters

[0074] Example

[0075] temperature °C

Embodiment 7-13

[0076] Embodiment 7-13 adopts caustic soda-anthraquinone method cooking

[0077] Table 12. Caustic soda-anthraquinone cooking parameters

[0078] Example

Embodiment 14-21

[0079] Embodiment 14-21 adopts kraft cooking

[0080] Table 13. Kraft Cooking Parameters

[0081]

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PUM

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Abstract

The invention relates to natural-color straw pulp with improved freeness, air permeability and folding strength, and stable performance, in particular to natural-color straw pulp and application thereof in mixed pulp and paper products. The straw pulp has the advantages that: color phase or whiteness of the straw pulp is remarkably improved; the bulk and freeness are high; and the acquired data of the sizing agent of the natural-color straw pulp is more stable because of small quality fluctuation of sizing agent.

Description

technical field [0001] The present invention relates to a kind of natural color straw pulp with improved freeness, air permeability and folding resistance and stable performance, specifically, the present invention relates to a kind of said natural color straw pulp, and their mixed pulp, Applications in paper products. Background technique [0002] In daily life, paper can be divided into cultural paper, industrial paper, household paper and special paper according to its use, among which cultural paper can be simply divided into uncoated paper and coated paper. Uncoated paper is called uncoated paper, such as newsprint, offset paper, electrostatic copy paper and writing paper, etc.; coated paper is called coated paper, such as coated paper, calendar paper, Glossy paper, glass cardboard, etc. Their manufacture includes the following steps: [0003] Pulping section: raw material selection→cooking and separating fibers→washing→bleaching→washing and screening→concentrating o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H11/12
Inventor 李洪法宋明信杨吉慧王建民毕衍金徐金香
Owner SHANDONG FUYIN PAPER & ENVIRONMENTAL PROTECTION TECH
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