Manufacturing method of environment-friendly paper product

By using waste cotton and linen and agricultural waste as auxiliary fiber raw materials, combined with low-temperature pyrolysis and environmentally friendly additives, the problems of raw material consumption and environmental pollution in paper product manufacturing have been solved, the overall quality and environmental performance of paper have been improved, and efficient resource utilization and environmentally friendly production have been achieved.

CN120844406APending Publication Date: 2025-10-28HENAN RUNKAI PAPER CO LTD
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Patent Information

Application Number
CN202511168258.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-20
Publication Date
2025-10-28

AI Technical Summary

Technical Problem

The existing paper product manufacturing process suffers from raw material dependence and resource consumption. It is difficult to balance environmental pollution and paper quality caused by the production process, especially the large consumption of virgin fibers, the lack of resource utilization of waste, and pollution and odor caused by fiber damage and chemical bleaching.

Method used

Waste cotton, linen, and agricultural waste are used as auxiliary fiber raw materials. Lignin is recovered by low-temperature pyrolysis. Environmentally friendly additives and compound bleaching agents are used to separate lignin and short fibers through low-temperature pyrolysis. The paper quality is enhanced by the addition of environmentally friendly additives, thereby achieving the synergistic effect of fibers and improving environmental performance.

Benefits of technology

It reduces the consumption of virgin fibers, lowers pollution from incineration and landfill, and improves the paper's flexibility, stiffness, tear strength, and bursting strength. It solves the problem of balancing paper quality and environmental performance, and avoids fiber damage and odors caused by chemical bleaching.

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Abstract

The invention discloses a manufacturing method of an environment-friendly paper product. The environment-friendly paper product is prepared from the following raw materials in parts by mass: 60-70 parts of a main fiber raw material, 25-35 parts of an auxiliary fiber raw material, 3-8 parts of an environment-friendly additive and 1-2 parts of a pretreating agent. By means of the components, by adding the auxiliary fiber raw materials, the environmental protection property is remarkably improved, waste cotton and linen and agricultural waste are converted into papermaking raw materials, consumption of primary fibers is reduced, meanwhile, waste recycling is achieved, and pollution caused by incineration and landfill is reduced. The auxiliary fibers and the main fibers have a synergistic effect and are matched with the environment-friendly auxiliaries to reinforce the quality of the paper, the cotton and linen fibers improve the flexibility, the agricultural waste fibers enhance the stiffness, lignin and short fibers are separated through low-temperature pyrolysis, impurities are prevented from affecting the performance of the paper, and solid powder rich in the lignin and the short fibers is recycled and reused.
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