Preparation method of paper pulp molded tableware

Abstract

The invention aims at overcoming the weaknesses of the existing preparation process of the paper pulp molded tableware, and provides an improved paper pulp molded tableware preparation process. According to the preparation process, a technological condition at a key control point of the paper pulp molded process is optimized, particularly in the pulp preparation process, a pulp-to-water ratio anda ratio of an oil-proof agent to a waterproof agent are optimized, and the technological conditions such as vacuum degree, temperature, pressure in the molding and stereotyping are controlled, so thatthe tensile strength of the product can be improved, in the mold stripping process, the tearing is unlikely to occur, the qualification rate of the product is increased, and the moisture absorption mould phenomenon can be reduced.

Description

technical field [0001] The invention relates to the field of pulp molded products, in particular to a preparation process of pulp molded products. Background technique [0002] With the rapid development of the economy, the pollution problem is becoming more and more serious. Various fast food utensils in the catering industry are also sources of pollution. Most of the early fast food utensils are made of polystyrene foam, which is easy to form white pollution. In order to solve this problem, paper has appeared instead of the material as packaging materials and fast food containers, wherein the use of pulp molding technology is currently the main method of producing pulp molded tableware. [0003] Chinese patent 99121800.0 discloses a production process of pulp molded products, including pulping, molding and shaping processes. The process is simple and the production efficiency is improved, but the tensile strength and tear resistance of the product are not enough, and there...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent 99121800.0 discloses a production process of pulp molded products, including pulping, molding and shaping. The process is simple and the production efficiency is improved, but the tensile strength and tear resistance of the product are not enough. Inconvenient to come

[0004] Chinese patent 00122895.1 discloses a production method of pulp molded products. In this method, the product blank formed by the pulp forming machine is extruded and dried in sections to obtain the corresponding product. However, the method does not disclose the size of the pulp. Proportion and specific process conditions

[0006] In view of the deficiencies of existing methods, especially the phenomenon that pulp molded tableware is prone to mildew, this application provides an optimized preparation method, which can improve the tensile strength of the product, make it difficult to tear during the demoulding process, and increase the qualified rate of the product , while reducing moisture absorption and mildew

Images