Manufacturing process of environment-friendly packaging tin

Abstract

The invention provides a manufacturing process of an environment-friendly packaging tin. The manufacturing process includes: selecting bamboo growing over three years; cutting off the bamboo, reversing a bamboo joint to form a bamboo tube with an open end and a closed end; drying the cut bamboo at the temperature not higher than 80 DEG C until the water content is below 4%; and making a cork out of dried cork wood, ensuring the diameter of the cork to be slightly larger than that of the open end of the bamboo tube matching with the cork, clamping the cork to reduce the diameter of the cork, pushing the clamped cork to a preset position at the open end of the bamboo tube, and releasing to allow the cork to naturally expand and plug the bamboo tube. The manufacturing process is simple, airtightness is high, the manufacturing process is especially suitable for packaging tea, foods requiring vacuum package and the like, and pollution of the foods in the packaging tin can be prevented effectively. The environment-friendly packaging tin is truly environment-friendly.

Description

【Technical field】 [0001] The invention relates to a manufacturing process of a packaging can. 【Background technique】 [0002] At present, most of the tea and food packages used on the market are packaged in packaging bags made of composite plastic film. Since the packaging of this type of packaging involves high-temperature packaging technology, it is well known that the composite plastic film will be released under high temperature conditions. Harmful gas will be released, which will pollute the food in the package, especially tea, which has a strong adsorption capacity and is easy to absorb harmful gas, and the pollution will be more serious. At present, there are paper packaging bags on the market, but for moisture-proof and anti-leakage considerations, manufacturers often install a non-breathable layer in the paper bag, such as a plastic film layer, which will also pollute the inside of the package when it is packaged at high temperature. food. In addition, the white p...

AI Technical Summary

Problems solved by technology

The wall of this kind of packaging box is made of vertical bamboo strips, the process efficiency is low, and the sealing performance is not good, so it is not suitable for the packaging of tea and some foods

[0005] In short, the packaging containers of bamboo materials currently retrieved are all further processed into various parts of the box body using bamboo strips, bamboo chips or bamboo skins, and then combined into packaging containers, which is not only complicated in process and high in cost, but also The process may also use non-environmentally friendly materials, and the sealing performance is not good, so it is not suitable for the packaging of tea and certain foods

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