The role of tea vacuum packaging machine

Tea vacuum packaging machine, it is a set of weighing, inner and outer packing machine. Vacuum packaging machine marks the birth of the domestic tea tea packaging level a big step, truly achieve the tea packaging standardization. ( 1) Moisture moisture in the tea is the tea biochemical changes of medium, low moisture content is conducive to the preservation of the tea quality. The tea water content should not be more than 5%. When long-term preservation in 3%. Otherwise the ascorbic acid in tea is easy to decompose, tea can change such as color, aroma, taste, especially under high temperature, the speed of the metamorphic to accelerate. Therefore, when the tea packaging can choose moisture-proof performance is good, such as aluminum foil or aluminum foil composite film materials on the basis of the evaporated film moisture-proof packaging for packing material. ( 2) Anti-oxidation on tea vacuum packaging machine packaging technology, inflatable packaging method or vacuum packing method can be used to reduce the presence of oxygen. Vacuum packing technology is put the tea into the tightness good soft film bags inside. Out of the air bag when packing, caused a certain degree of vacuum, then seal sealing packing method; Inflatable packaging technology is at the same time of exhaust air into the inert gas such as nitrogen, the purpose is to protect the tea color, aroma, taste stable, keeping its original quality. ( 3) Shading light can promote chlorophyll in tea and oxidation of lipid, etc, make the tea valeraldehyde, propionaldehyde odor material such as increase, accelerate the aging of tea, therefore, vacuum packaging machine in the packaging of tea tea, must shading to prevent other ingredients such as chlorophyll, lipid photocatalytic reaction. In addition, the ultraviolet ray also is the important factor causing the tea metamorphic. Solve the problem can use sunscreen packaging technology. ( 4) Choke the fragrance of the tea is easily lost, and easily affected by the peculiar smell, especially composite membrane residual solvents and electric iron processing, heat sealing processing into the smell will affect the tea flavor, making the aroma of tea. Therefore, tea vacuum packaging machine packaging tea from the packaging must be avoided when the dissipation and absorb peculiar smell from the outside world. Tea packaging materials must have certain cut off gas properties.

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