1. The basic requirements of tea characteristics for packaging form
Tea is one of the three major non-alcoholic beverages in the world. According to the processing technology, it is divided into six major teas: green tea, black tea, and black tea. Tea has the characteristics of hygroscopicity, oxidative adsorption, fragility, and variability. Tea is extremely sensitive to external odors. When the airtightness of the packaging does not meet the requirements, and the polyphenols in the tea will automatically oxidize, the color of the tea soup will darken, and the fragrance of the tea itself will gradually disappear, and it will absorb the surroundings. The various smells of the environment, the taste becomes weaker, and even deteriorates and cannot be consumed. Therefore, the packaging of tea must have good sealing, shading, air-proof, moisture-proof, and anti-extrusion conditions. In order to facilitate the sale of money and meet the requirements of long-term storage , Tea usually needs to be packaged.
2. Tea packaging
At present, there are many types of containers for tea packaging on the market, including metal cans, bag-lined boxes, composite film bags, paper bags, bamboo (wood) boxes, etc. Due to the different physical properties of various packaging materials such as moisture permeability and air permeability, The effect of preventing the deterioration of tea is also very different.
1. Metal can packaging
Metal cans are made of tinned thin steel plates. The can shapes are square and cylindrical, and there are two types of single-layer lids and double-layer lids. From the perspective of sealing, there are two types of general cans and sealed cans. Generally, cans are enclosed Deoxidizer packaging method to remove oxygen in the package. Sealed cans are mostly used for inflating and real packaging. Metal cans are better than composite Pu membrane for protection of tea, and the appearance is beautiful and noble.
2. Packed in bag lined box
Bag-lined box packaging is a packaging box made of plastic film layer or cardboard coated with moisture-proof coating as the packaging material. This kind of packaging not only has the function of composite film bag packaging, but also has the protective and rigidity of carton packaging. If you use plastic bags to make small packaging bags inside, the protective effect will be better. The bag lined box is made of packaging materials with plastic film layers or cardboard coated with moisture-proof coatings. This kind of packaging has both The function of composite film bag packaging also has the protective and rigid properties of carton packaging. If plastic bags are used to make small packaging bags inside, the protective effect will be better.
3. Bamboo packaging
The tea packaged in bamboo slips is also called "bamboo tea", which has a relatively long history. The bamboo slips are simple and elegant in appearance, and some have good moisture-proof effects. The outer packaging is made with bamboo tubes, and the tea leaves sealed in aluminum paper bags are placed inside, which is not only beautiful but also Effective protection of tea
4. Horseeye tin can packaging
Horseeye tin cans are damp, protected from light, have good airtightness, and are luxurious and noble. They are ideal packaging containers and can be used for high-crystalline tea three-time packaging. However, horseeye is easy to rust, so use it for packaging The tea is best used in a sealed bag.
