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Natural-color straw pulp with improved color phase, opacity and freeness, and stable performance

A freeness and transparency technology, used in non-woody plant/crop pulp and other directions, can solve the problems of straw pulp being unable to have stable performance, low freeness and whiteness, and large fluctuations in pulp quality, and achieve hue or whiteness. The effect of improvement, small fluctuation of pulp quality and stable pulp data

Active Publication Date: 2011-08-10
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 poor drainage, poor opacity, low freeness and whiteness, and large fluctuations in pulp quality; at the same time, bleaching and beating have a significant impact on the physical and chemical properties of straw pulp, resulting in straw Pulp cannot have stable performance

Method used

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  • Natural-color straw pulp with improved color phase, opacity and freeness, and stable performance
  • Natural-color straw pulp with improved color phase, opacity and freeness, and stable performance
  • Natural-color straw pulp with improved color phase, opacity and freeness, and stable performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0071]Embodiment 1-6 adopts ammonium sulfite method cooking

[0072] Table 11. Ammonium sulfite cooking parameters

[0073] Example

Embodiment 7-13

[0074] Embodiment 7-13 adopts caustic soda-anthraquinone method cooking

[0075] Table 12. Caustic soda-anthraquinone cooking parameters

[0076] Example

Embodiment 14-21

[0077] Embodiment 14-21 adopts kraft cooking

[0078] Table 13. Kraft Cooking Parameters

[0079]

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PUM

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Abstract

The invention relates to natural-color straw pulp with improved color phase, opacity and freeness, 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 opacity 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 hue, opacity and freeness and stable performance, specifically, the present invention relates to a kind of said natural color straw pulp, and their use in mixed pulp and paper products in the application. 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 or copying i...

Claims

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Application Information

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