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Paper preparation, modification and optimization method

An optimization method and paper technology, applied in the field of modern papermaking, can solve problems such as lack of antibacterial, mildew, and insect repellent effects, inability to effectively remove metal ions, system equipment, and pipeline scaling, so as to prevent secondary pollution and reduce pulp return. Yellow, the effect of improving the whiteness of pulp

Inactive Publication Date: 2018-11-06
泾县瑞旺农业科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the other hand, the catalytic decomposition of metal ions in the existing papermaking process to hydrogen peroxide and hypochlorous acid bleaching agents affects the bleaching effect, and such as Fe 3+ The ions react with the phenolic groups in the pulp to form a deep-colored compound, which will reduce the whiteness of the pulp and increase the degree of yellowing of the pulp. Scaling of system equipment and pipelines, these metal ions cannot be effectively removed in the existing adding machine, the adsorption effect is not strong, and it is easy to cause secondary pollution
[0005] In addition, the application of sealing and packaging paper in the market is very extensive, but the sealing and packaging paper with anti-moth and moisture-proof functions are currently blank in the market, which greatly limits the choice of materials for many packaging products. The lack of effect will easily cause irreparable losses

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for optimizing paper production in this embodiment includes the same pulping process, modulation process, papermaking process and post-processing process as the existing papermaking process. The pulping process is divided into pulping of plant fiber raw materials and bleaching. The preparation process is divided into three steps of loose pulp, beating and sizing and filling. In this embodiment, the optimization difference is:

[0041] Add component A after the plant fiber raw material pulping step and before the bleaching step in the existing pulping process, stir at a stirring speed of 170r / min for 7 minutes at a temperature of 34°C, and then let it stand for 30 minutes to proceed to the next step ;

[0042] Add component B before the sizing step in the existing preparation process, and stir for 50 minutes at a stirring speed of 10r / min at a temperature of 28°C and transfer to the next step;

[0043] The component A includes the following raw materials in par...

Embodiment 2

[0054] A method for optimizing paper production in this embodiment includes the same pulping process, modulation process, papermaking process and post-processing process as the existing papermaking process. The pulping process is divided into pulping of plant fiber raw materials and bleaching. The preparation process is divided into three steps of loose pulp, beating and sizing and filling. In this embodiment, the optimization difference is:

[0055] Add component A after the plant fiber raw material pulping step and before the bleaching step in the existing pulping process, stir at a stirring speed of 180r / min for 9 minutes at a temperature of 36°C, and then let it stand for 34 minutes to proceed to the next step ;

[0056] Add component B before the sizing step in the existing preparation process, stir for 70 minutes at a temperature of 30°C at a stirring speed of 14r / min and transfer to the next step;

[0057] The component A includes the following raw materials in parts b...

Embodiment 3

[0068] A method for optimizing paper production in this embodiment includes the same pulping process, modulation process, papermaking process and post-processing process as the existing papermaking process. The pulping process is divided into pulping of plant fiber raw materials and bleaching. The preparation process is divided into three steps of loose pulp, beating and sizing and filling. In this embodiment, the optimization difference is:

[0069] Add component A after the plant fiber raw material pulping step and before the bleaching step in the existing pulping process, stir at a stirring speed of 175r / min for 8 minutes at a temperature of 35°C, and then stand still for 32 minutes to proceed to the next step ;

[0070] Add component B before the sizing step in the existing preparation process, and stir for 60 minutes at a stirring speed of 12r / min at a temperature of 29°C and transfer to the next step;

[0071] The component A includes the following raw materials in part...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to the technical field of papermaking, in particular to a paper preparation, modification and optimization method. The method includes: adding a component A composed of diethylene triaminepentaacetic acid, sodium dodecyl sulfate and modified chitosan after plant fiber raw material pulping and after bleaching; adding a component B composed of plant multi-glue, pyrethrin, modification plant extract and modified dialdehyde starch before glue applying in the process of preparation. By the method, impact of metal ions on paper pulp bleaching can be lowered effectively, good swelling of fiber can be realized, and paper is easier to dry; filament phenomena can be reduced, strength of the paper is improved, permeation resistance of paper sheets to hydration liquid is improved, and the paper has good bacteriostatic and insect-resistant effect; the added components are nontoxic, harmless, safe and environment, so that the method has high practical value and good applicationprospect.

Description

technical field [0001] The invention relates to the technical field of modern papermaking, in particular to a method for optimizing the properties of paper preparation. Background technique [0002] Papermaking is an important invention of the working people in ancient China. There are two forms of mechanism and manual. The mechanism is carried out continuously on the paper machine. The pulp suitable for paper quality is diluted with water to a certain concentration, and is initially dehydrated in the wire part of the paper machine to form a wet paper sheet, which is then dehydrated by pressing, and then dried into paper. [0003] On the one hand, because handmade paper is beaten manually, the fibers in the pulp are well preserved and the fibers of handmade paper can be arranged in various directions evenly; machine-made paper is beaten by machines, and the pulp fibers are broken. The longitudinal and horizontal distribution of fibers is uneven. For example, during wet mec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F11/00
CPCD21F11/00
Inventor 梅伟
Owner 泾县瑞旺农业科技服务有限公司
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