Manufacture method for cellulosic paper-plastic disk-shaped product

Abstract

The invention provides a method for manufacturing fibrous paper-plastic disc products. First, based on the raw material pulp board, according to the product size requirements, the raw material board is cut out by a cutting machine, and then the solution containing additives is applied to the embryo through a coating machine. On the material board, it is directly dried and press-molded by a hot press machine. The hot-press molding time takes about ten seconds, and finally it is sent to the edge trimmer to cut off the edge material to complete the output of the product. The present invention is mainly aimed at the manufacture of paper-plastic disc-shaped products with large side inclination angles and small depth-to-width ratios. It uses direct hot-press molding without pulping and pulp suction molding processes, reducing procedures, and saving water and electricity. , save labor, save investment and save space.

Description

technical field [0001] The invention relates to a hot-pressing production and molding process for paper-plastic products, in particular to a manufacturing method for fibrous paper-plastic disc-shaped products. Background technique [0002] Pulp molding is a three-dimensional integral molding paper product manufacturing technology. It uses pulp board as raw material, beats with water and molds paper products of a certain shape on a molding machine with a special mold. It has four advantages: (1) The raw material is fibrous pulp board or waste paper, including wood pulp, bamboo pulp, bagasse pulp, reed pulp, straw pulp or cardboard, waste box paper, white edge paper, etc., its raw material source Wide range; (2) non-toxic; (3) the production process is completed by pulping, pulp suction molding, drying and shaping, etc., which has little impact on the environment; (4) can be recycled and reused; (5) the volume ratio of foamed plastics Small, stackable, and easy to transport....

AI Technical Summary

Problems solved by technology

[0011] The above-mentioned process is a general process method for making tableware such as paper-plastic plate products, and it mainly has the following disadvantages: (1) the equipment involved is relatively complicated, resulting in high equipment investment costs; (2) a large amount of equipment will be spent in the pulping process For water resources, hot pressing is required for 60-120 seconds to evaporate water when heating, drying and shaping, and the power consumption is also very large; (3) Due to the complexity of the equipment, the required space is relatively large; (4) Because of the circulation of the pulping system Slurry and white water after slurry suction molding will produce waste water, which is not conducive to environmental protection from the perspective of environmental protection

For paper-plastic disc products with large side slope angle and small depth-to-width ratio, the above-mentioned manufacturing process is too complicated, and the production cycle is long and the investment cost is high, which is not conducive to energy saving.

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