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What are the performance requirements of tea packaging bags?

It is well known that tea contains various components such as ascorbic acid, tea tannins, tea compounds, aromatic oils, proteins, catechins, lipids, vitamins, pigments, pectin, enzymes and minerals, which are all highly susceptible to moisture, Oxygen, temperature, light and environmental odors will deteriorate due to the influence of oxygen, temperature, light and environmental odor. Tea farmers and tea merchants attach great importance to this in tea packaging. It is requi that the packaging bag of tea not only has a beautiful appearance and a generous design, but also has the ability to protect from light and moisture. , blocking the role of air and oxygen, in addition to the first time, it is necessary to ensure that the materials of the packaging bags are food-grade materials, which will not produce peculiar smell, which will affect the tea itself. Therefore, how to choose a good tea packaging bag is also every time. This is a problem that both tea farmers and tea merchants are very concerned about. Guangdong Industrial Co., Ltd. has been engaged in the production of packaging bags for more than 10 years. I also know very well about tea packaging bags. How to choose the tea packaging bags that are suitable for my products? Our company solves the confusion for tea merchants and tea farmers one by one. 1. Tea needs to be moisture-proof, and tea packaging bags need to be moisture-proof! Moisture in tea leaves is the medium for the biochemical changes of tea leaves, and low moisture content is conducive to the preservation of tea quality. If the tea can be sto for a long time and the color, fragrance and taste of the tea will not change, the water content in the tea should not exceed 6%, otherwise the ascorbic acid in the tea will be easily decomposed, and the color, fragrance and taste of the tea will change. Therefore, when choosing packaging bag materials, it is best to choose aluminized materials with good moisture resistance or composite bags materials based on pure aluminum materials to facilitate moisture resistance. 2. Tea is anti-oxidation, and the tea packaging bag should be isolated from air and oxygen! Excessive oxygen content in tea can lead to oxidative deterioration of certain components in tea, such as ascorbic acid, affecting the taste, color and shelf life of tea. Therefore, in terms of packaging technology, vacuum packaging can be used to uce the presence of oxygen, so that the oxygen content in tea packaging can be effectively controlled below 1%. The specific operation of vacuum packaging technology is as follows: put the tea into a soft film packaging bag with good air tightness, remove the air in the bag during packaging, create a certain degree of vacuum, and then seal the packaging, the purpose is to isolate air and oxygen, Protect the color, aroma and taste of tea leaves to remain stable and maintain their original quality. 3. Tea needs to be shaded. Tea bags should be shaded! Light can promote the oxidation of chlorophyll and lipids in tea, increase the odor substances such as valeraldehyde and propionaldehyde in tea, and accelerate the aging of tea. Therefore, when packaging tea, light must be blocked to prevent chlorophyll, lipid, etc. Other components undergo a photocatalytic reaction. In addition, ultraviolet rays are also an important factor in causing the deterioration of tea leaves. To solve this kind of problem, the tea leaves can be completely sealed. On the appearance design of the tea packaging bag, the color that covers a large area is completely used, and no transparent window is left, so that the tea leaves can be completely sealed! 4. The tea bag can block the air. The aroma of tea leaves is easily lost, and it is easily affected by external odors, especially the residual solvent of the composite film and the peculiar smell decomposed by electric ironing and heat-sealing treatment, which will affect the flavor of tea leaves and affect the aroma of tea leaves. Therefore, food-grade packaging bag materials must be used for packaging tea bags, and food-grade benzene-free and ketone-free inks are used for printing, so as to ensure that the tea packaging bags have no peculiar smell and will not damage the taste of the tea itself! food bags, food packaging bags

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