Low-cost high-quality paper improvement preparation process

Abstract

The invention relates to the technical field of paper making, in particular to a low-cost high-quality paper improvement preparation process, which comprises the following steps of adding an ingredient A prepared from diethylene triaminepentaacetic acid, sodium dodecyl sulfate and modified chitosan after the plant fiber raw material pulping step and before the bleaching step, and adding an ingredient B prepared from plant poly gum, pyrethrin, additive plant extracts and modified dialdehyde starch before the glue application step in the proportioning process. The process provided by the invention has the advantages that the influence of metal ions on paper pulp bleaching can be effectively reduced, so that the fiber obtains good lubrication swelling effects; paper can be more easily dried;in addition, the generation of thread fluid phenomenon can be reduced; the paper intensity is improved; meanwhile, the anti-seepage power of paper on hydration liquid can be improved; good antibacterial and insect prevention effects can be achieved; each added ingredient is nontoxic and harmless; safety and environment protection are realized; high practicability and good application prospects arerealized.

Description

technical field [0001] The invention relates to the technical field of modern papermaking, in particular to an improved preparation process of low-cost and high-quality paper. 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 ...

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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