You know the character of tea packaging! ！ ！

As one of the world's three largest drinks, tea is particularly popular in China, and accordingly, such as food packaging bags, tea caddy tea packaging performance variety in the market. Among them, the tea food bags as tea packaging of flexible packaging products, especially important in protecting the functional sex of the tea. Generally, there are a variety of food sack on functional tea features: one is the moisture resistance of the food packaging tea. Tea products are different from general food items, the moisture in the tea is tea biochemical changes of medium, low moisture content in favor of preservation of tea and guarantee the quality of tea. However, the tea water content also shoulds not be too much ( More than 5%) , and in the tea is better to 3% when long-term preservation, otherwise the ascorbic acid in tea easy to decompose, easily lead to packing tea metamorphism. Therefore, in the tea packaging production when select material should choose moistureproof performance good materials, such as aluminum foil or aluminum foil composite film material; Secondly, oxygen resistance of tea packaging. Once the oxygen content in the tea packing too much will lead to some ingredients in tea oxidation, therefore the tea packing generally adopts pneumatic or vacuum packing to reduce oxygen content, and accordingly, the tea packing bags of food also need to consider the selection of the resistance of oxygen on select material to avoid the infiltration of oxygen in the air bags; A third is the tea food sack of resistance to high temperature. Tea at high temperature will aggravate the oxidation of some ingredients and tea metamorphic, and bags with good resistance to high temperature and low temperature preservation undoubtedly can greatly reduce the resulting packaging tea metamorphism; Fourth, the tea packing bags of food away from light. In order to avoid in the tea under the light of the chlorophyll and oxidation of the lipid material, makes tea accelerated aging, so the tea food bags should consider when select material to avoid light of packaging materials and save as far as possible when placed in the shade; Besides the above several functional selection requirements, tea packaging production but also consider the packaging resistance capability requirement, in order to avoid from the fragrance from the packaging and absorb peculiar smell from the outside world.
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