Chinese name: tea packaging mbth: tea packaging method 1: metal can packaging method 2: carton packaging method 3: plastic packaging overview, style, classification, method and packaging method Metal can packaging, carton packaging, plastic packaging, film bag packaging, paper bag packaging, overview China tea has a long history, and tea tasting has become an indispensable part of China people's daily life. There are six tea families in China * * *: green tea (represented by Huangshan Maoan Guapian, Hangzhou West Lake Longjing Tea, Suzhou Dongting Mountain Biluochun Duyun Maojian Xinyang Maojian), yellow tea (represented by Huoshan Huangya and Meng 'er Yinzhen), white tea (represented by Baihao Yinzhen), green tea (represented by Anxi Tieguanyin, Wuyishan Dahongpao and Frozen Top Oolong Tea) and black tea. Tea is a kind of dried product, which is easy to absorb moisture and produce qualitative change. It has a strong adsorption effect on moisture and odor, and the aroma is volatile. Improper storage of tea leaves, under the action of moisture, temperature and humidity, light, oxygen and other factors, will cause adverse biochemical reactions and microbial activities, which will lead to changes in tea quality. Therefore, there are certain requirements for what container and method to use when storing. Therefore, tea cans came into being. Style tea packaging mainly includes tin tea cans, tinplate tea cans, ceramic tea cans, glass tea cans, paper tea cans and so on. Tinplate tea cans are deeply loved by the public because of their diverse styles, exquisite printing, easy breakage and convenient freight transportation. Considering the factors such as price and manufacturing technology, most of the iron tea cans used in the market are deeply loved by the public because of their exquisite printing and novel style. Tea packaging classification is mainly divided into small packaging and gift box packaging. Small package is for the convenience of customers to make tea. According to the small package of quantitative grams, tea leaves are packaged in bubble bags. Tea gift box packaging is the main way of tea packaging. Tea is packaged as a gift through packaging materials of various materials (such as paper, wood, plastic, cloth and metal), so as to improve the brand awareness of tea and increase the added value of products. Packaging methods As tea is a special commodity, the commonly used packaging methods mainly include the following. Metal can packaging Metal can packaging has excellent anti-breakage, moisture-proof and sealing properties, and is an ideal packaging for tea. Metal cans are usually made of tinned steel plates. There are square and cylindrical cans, and there are two kinds of single-layer lids and double-layer lids. From the point of view of sealing, there are two kinds of cans: ordinary cans and sealed cans. In packaging technology, cans can be packaged with deoxidizer to remove oxygen in the package. Sealed cans are mostly air-filled vacuum packaging. Metal cans have a better protective effect on tea than composite films, and their appearance is beautiful and noble. Their disadvantages are high packaging cost, high weight ratio between packaging and goods, and increased transportation cost. The well-designed metal cans are suitable for the packaging of high-grade tea. Carton packaging Cartons are printed from white board paper, gray board paper, etc. Carton packaging prevents easy damage and has good shading performance. In order to solve the volatilization of tea aroma in carton packaging and avoid the influence of external odor, tea is usually packed in polyethylene plastic bags and then packed in cartons. The disadvantage of carton packaging is that it is easy to get wet. Now paper-plastic composite packaging box has been used to overcome the problem that cartons are easy to get wet. The packaging box made of cardboard with plastic film layer or moisture-proof coating as packaging material not only has the function of composite film bag packaging, but also has the protection and rigidity of carton packaging. If plastic bags are made into small packaging bags and put inside, the protection effect will be better. Plastic packaging Polyethylene, polypropylene, polyvinyl chloride and other plastic containers have the characteristics of elegance, beauty and good packaging and display effect, but their sealing performance is poor, so they are mostly used as outer packaging in tea packaging, and their packaging is mostly packed in composite plastic bags. The plastic composite film packed with thin film bags has the advantages of light weight, not easy to be damaged, good heat sealing and reasonable price, and is widely used in packaging. There are many kinds of composite films for tea packaging, such as moisture-proof cellophane/polyethylene/paper/aluminum foil/polyethylene, biaxially stretched polypropylene/aluminum foil/polyethylene, polyethylene/polyvinylidene chloride/polyethylene and so on. The composite film has excellent gas barrier, moisture resistance, fragrance retention and odor resistance. Because the light transmittance of most plastic films is 80% ~ 90%, in order to reduce the light transmittance, ultraviolet suppression can be added to packaging materials or printing coloring can be used to reduce the light transmittance. In addition, composite materials based on aluminum foil or vacuum aluminized film can be used for shading packaging. Aluminum foil composite packaging bag adopts metal aluminum, and its metal barrier composite plastic film is very practical, which basically meets the requirements of tea fragrance preservation. There are many packaging forms of composite film bags, such as three-sided sealing shape, self-standing bag shape, folding shape and so on. Packaging Composite film bag has good printability, so it plays a unique role in attracting customers and promoting tea sales as a sales packaging design. Paper bag packaging, also known as tea bag, is a kind of bag packaging with thin filter paper as the village material, which is put into the tea set together with the paper bag when used. The main purpose of packaging with filter paper bag is to improve the leaching rate, and also to make full use of tea powder in tea factory. Teabag is very popular in the international market because of its advantages of rapid brewing, cleanliness, standard dosage, mixed drinking, convenient slag discharge and portability, which meets the needs of modern people's fast-paced life. Early teabags generally had bag lines to meet the convenience of repeated soaking. Due to the requirements of environmental protection, teabags with bag lines have been eliminated.