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Surface sizing process of high strength corrugated medium paper
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A technology of surface sizing and corrugated medium paper, which is applied in paper, papermaking, textiles and papermaking, etc., can solve the problems of large return flow of surface sizing starch, affecting the sizing effect of sizing agent, and the entry of anion garbage, etc., to achieve production The process is clean and environmentally friendly, easy to implement and control, and improves the effect of use
Active Publication Date: 2018-04-03
东莞顺裕纸业有限公司
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Abstract
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Problems solved by technology
However, due to the dirty pulp in the production of high-strength corrugated core paper, there is a lot of anionic garbage, and the return flow of surface sized starch is large, causing a large amount of anionic garbage to enter the starch liquid, and the anionic garbage reacts with the cationic sizing agent that enters the surface sized starch. , affecting the sizing effect of the sizing agent, so it is necessary to improve
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Embodiment 1
[0017] The surface sizing process of high-strength corrugated medium paper includes the following steps,
[0018] Conveying the sizing starch liquid, conveying the sizing starch liquid through the pipeline;
[0019] Add a cationic surface sizing agent, and add a cationic surface sizing agent to the sizing starch liquid through the inlet pipeline of the starch feeding pump to form a cationic sizing starch liquid;
[0020] Surface sizing, the cationic sizing starch liquid is transported to the starch feeding and spraying pipe of the surface sizing machine through the conveying pipeline, and the surface sizing is carried out on the high-strength corrugated core paper;
[0021] Sizing material backflow, through the return pipeline, the excess used cationic sizing starch liquid in the surface sizing machine is transported out to form the backflow sizing material;
[0022] Add reactants, relative to the amount per ton of paper, by weight percentage, add 0.1 to 0.3% liquid aluminum ...
Embodiment 2
[0025] The surface sizing process of high-strength corrugated medium paper includes the following steps,
[0026] Conveying the sizing starch liquid, conveying the sizing starch liquid through the pipeline;
[0027] Add a cationic surface sizing agent, and add a cationic surface sizing agent to the sizing starch liquid through a starch feeding pump to form a cationic sizing starch liquid;
[0028] Surface sizing, the cationic sizing starch liquid is transported to the surface sizing machine through the conveying pipeline, and the surface sizing is performed on the high-strength corrugated medium paper;
[0029] Sizing material backflow, through the return pipeline, the excess used cationic sizing starch liquid in the surface sizing machine is transported out to form the backflow sizing material;
[0030] Add reactant, according to the weight percentage, add 0.1~1% liquid aluminum sulfate reactant to the return pipe through the metering pump, the adding point of the liquid alu...
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Abstract
The invention discloses a surface sizing technology of high-strength corrugated medium paper. The surface sizing technology comprises the following steps: conveying a sizingstarch solution, adding a cationic surface sizing agent, performing surface sizing, and reflowing and recycling a sizing material. In the surface sizing technology, anionic rubbish in the reflowed sizing material is treated and removed, so that not only is reaction between the anionic rubbish and the added cationic surface sizing agent avoided and the using effect of the cationic surface sizing agent improved, but also the problem of accumulation of the anionic rubbish in the reflowed sizing material along with the increase in the number of recycles can be avoided; treatment of the anionic rubbish is simple and convenient, and easy to implement and control; a production process is clean, environment-friendly, pollution-free, and very low in running cost; therefore, the surface sizing benefit is comprehensively improved.
Description
technical field [0001] The invention relates to the technical field of surface sizing in the clean production process of using waste paper to produce high-strength corrugated medium paper, in particular to a surface sizing process for high-strength corrugated medium paper. Background technique [0002] In order to save resources, high-strength corrugated medium paper is produced from waste carton boards. At present, high-strength corrugated medium paper is developing towards low basis weight and high strength, but the reduction of basis weight will inevitably affect other performance indicators of high-strength corrugated medium paper. In order to keep the performance indicators of high-strength corrugated medium paper unchanged, starch is used for surface sizing in the production of high-strength corrugated medium paper to improve the physical strength and moisture resistance of high-strength corrugated medium paper. With the development of surface sizing technology for hig...
Claims
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Application Information
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