Paper cup lid and its manufacturing process

Abstract

The invention discloses a paper cup cover and a manufacturing technology thereof. The paper cup cover comprises, by mass, 90-95 parts of bagasse pulp, 0.5-1 part of tea polyphenol, 0.5-1 part of sodium alginate, 0.5-1 part of titanium dioxide, 3-8 parts of diatomite and 0-1 part of water. A manufacturing technology of the paper cup cover includes the steps of (1), dissolving the sodium alginate into water so as to obtain a sodium alginate water solution; (2), pulping and defibrinating the bagasse pulp; (3), under the condition of stirring, adding the sodium alginate water solution obtained in the step (1) into slurry obtained in the step (2) with uniformly mixing; (4), under the condition of stirring, sequentially adding the titanium dioxide, the diatomite and the tea polyphenol with uniformly mixing; (5), injecting a mixture into a mould of the cup cover and heating to dry for 2-3 minutes at 185-200 DEG C in the pressing and closing state of the mould; (6), trimming edges by an edge trimmer. The paper cup cover is energy saving, environment friendly and excellent in strength performance.

Description

technical field [0001] The invention relates to the technical field of manufacturing technology of plant fiber molded products, more specifically, it relates to a paper cup lid made of plant fiber and its production process. Background technique [0002] my country's sugarcane production is second only to Brazil and India, and is the third largest sugarcane plantation in the world. Sugarcane occupies an important position in my country's agricultural economy, and its output and output value are second only to grain, oilseeds and cotton, ranking fourth. Due to the strong adaptability of sugarcane, the planting area of ​​sugarcane in my country has increased year by year in recent years. [0003] Sugar cane is mainly used to make sugar, and my country is one of the main sugar producing countries in the world. As the main by-product of the sugar industry, bagasse is used in papermaking, animal feed, etc., and the added value of the product is low. The patent document (refere...

AI Technical Summary

Problems solved by technology

[0004] However, the strength performance of the paper cup lid produced by the production process described in the reference document is not high, and needs to be strengthened

This is because the paper cup lid is made of bagasse pulp, reed pulp, and wheat straw pulp bonded by coagulant polysaccharide agent, and the binding ability between bagasse pulp, reed pulp, and wheat straw pulp is not strong.

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