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What are the materials suitable for tea packaging bags

by:Supouches Packaging     2021-12-23
At present, there are a wide variety of tea packaging bags in the market. Plastic bags and aluminum foil bags are most used among many materials because of their good use characteristics. Plastic bags share common packaging bag materials for you: Generally, the materials suitable for tea packaging are: 1. PE bag (plastic bag) Polyethylene bag, or PE bag, is currently a widely used packaging material. Generally, there are two types of low-density PE bags and high-density PE bags. Low-density PE bags have greater moisture permeability and air permeability. High-density PE bags are smaller. The advantages of PE bags are economy, cheapness, and good moisture resistance. The disadvantages are that they have poor light transmission and gas resistance and cannot be individually used for tea packaging. It is best to use polyethylene bags to add a layer of external packaging that can block light and have low air permeability, such as synthetic paper cans, iron cans, etc.: PE bags have higher air permeability and it is difficult to solve the oxygen problem in the packaging bag, which is not ideal The packaging material. 2. Aluminum foil laminated bag The aluminum foil laminated bag is beautiful and elegant. Its advantages are opaque, moisture-proof and oxygen-resistant, but the price is more expensive than PE bags, and it will cause extrusion problems when used alone. The aluminum foil laminated bag can be treated with vacuum or nitrogen or deoxidizer. With packaging cartons or synthetic paper cans, the storage of tea leaves can be completely protected from moisture, gas, light, and oxygen. Storage at low temperatures is the best solution for tea. Perfect preservation method. 3. Nitrogen-filled or vacuum packaging Vacuum packaging is due to shrinkage of the packaging bag. In order to avoid re-squeezing and collision and for the sake of aesthetics, external packaging protection should be added. Nitrogen-filled packaging will expand the bag, and it should not be squeezed to avoid bursting the bag. Both require additional packaging, and the preservation also has a good effect, but the investment is more expensive. 4. Metal tin cans The advantages of metal tin cans are extrusion resistance and good texture. In the early days, they were mainly used for the outer packaging of tea with PE bags. However, due to their high price and easy corrosion and deformation, they have been gradually eliminated. The paint smell and the tightness of the lid in the metal tin cans are not enough to be used alone. It is best to use PE bags or aluminum foil laminated bags for inner packaging. 5. Glass jars, magnetic jars, wooden boxes, paper boxes Although glass jars have excellent gas and moisture resistance, they are light-transmissive, fragile, heavy, and expensive. Magnetic pots or earthenware pots can be protected from light but are similar to glass pots. They are fragile and heavy. Improper handling of wooden boxes can easily cause tea to absorb peculiar smell and moisture and breathe. Boxes or paper bags are easy to absorb moisture and break. These materials are not ideal tea packaging materials. . 6. Synthetic paper cans Synthetic paper cans are currently the most widely used packaging materials. Its advantages are economy, lightness, and beauty. Only air and moisture permeability are still high, and it is not suitable to be used alone. It is best to be used with PE bags or aluminum foil laminated bags. inner packaging. Although there are thousands of different kinds of tea packaging, plastic packaging products are the most used in the inner packaging of tea, because its sealing and moisture-proof effect are only the best. For different tea packaging bags, we have the best solutions. If you want to learn more about tea packaging bags, please click on the link to view tea packaging bags
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