On the packaging of tea 0

Talking about the packaging of tea

the definition of packaging in GB "general terms of packaging" is "the general name of containers, materials and auxiliary materials used according to certain technical methods in order to protect products in the circulation process, facilitate storage and transportation, and promote sales. It also refers to the operation activities of applying certain technical methods in the process of containers, materials and auxiliary materials used to achieve the above purpose". Tea packaging actually refers to a system with specific functions used to ensure the smooth realization of the use value and value of tea products in the circulation process. As a beverage store, tea enters the hands of consumers as a terminal product. The most basic requirements of its packaging are sealing, avoiding light, gas and humidity. Therefore, exquisite packaging of tea, ensuring the original taste and convenient carrying and use are the driving forces that directly stimulate consumers' desire for purchase. At present, tea packaging is more representative of the characteristics of the times and the symbol of social progress, from the past bulk paper bags, plastic bags and cans to the current popular high-end exquisite gift paper boxes (cans) and aluminum foil exquisite bubble packaging. The dazzling, colorful and diverse tea packaging has become an important part of tea culture and a scenic spot for urban merchants. This article only gives a brief introduction to the development and performance of tea packaging. Tea packaging before the reform and opening up before the reform and opening up, tea was in the era of national unified purchase and marketing. Tea packaging mainly includes wooden cases, tins, paper bags, bamboo cans, porcelain cans, tin cans, etc. 1.1 wooden case wooden case is the oldest and most commonly used packaging container, which is used for the outer packaging of tea. The wooden box has good rigidity and cushioning performance, and can resist bending and cracking. There are wooden tea boxes and plywood tea boxes. Wooden tea boxes are export tea boxes used in China in the 1950s and 1960s, and they use more wood. Plywood tea boxes lined with kraft paper and aluminum foil are mainly used for exporting tea. Specification of tea box: 350 × three hundred and fifty × 350 mm, 460 × four hundred and sixty × 460 mm, 400 × four hundred × 600mm, 400 × five hundred × 600mm, etc., and the latter two are international standard boxes. Nowadays, due to the reduction of wood resources and the increase of costs, wooden boxes have been gradually replaced by cartons. 1.2 tin tin tin is a traditional small package of tea, which is made of tinplate. The shapes of tea pots are round, square, rectangular, flat, hexagonal and so on. Tin can be reused. This kind of packaging has a good effect on protecting the color, aroma, taste and shape of tea. The size and specification of iron ear capacity are 50g, 100g, 250g, 500g, 1000g, etc. The appearance decoration is dominated by geometric patterns and landscape pictures, with font names and advertising words. 1.3 paper bags paper bags are mainly made of kraft paper and aluminum foil. Kraft paper is used as the lining. Advanced high molecular material enterprises account for more than 30% of the number of new material enterprises. They are characterized by flexibility, firmness and elasticity, strong burst resistance and good water resistance. Aluminum foil has light blocking and waterproof properties, smooth surface and good printing effect. Paper bags are light in weight, can be converted into bundles, convenient to transport and carry, low in price, and widely used. Specifications include 200 g, 250g, 500g, etc. Its disadvantages are not strong sealing, easy to damage and inconvenient to reuse. 1.4 porcelain pot porcelain pot packaging used to occupy a certain proportion in tea packaging. Using it to package tea not only does not lose the color, aroma and taste of tea, but also is not easy to mildew. Its unique shape is also a good art. Porcelain pots include Jingdezhen porcelain pots, which are as white as jade, as thin as paper, as bright as a mirror, and as loud as sound, as well as simple and elegant Yue porcelain and Jian porcelain pots; According to the shape, there are tripod type porcelain pots, treasure gourd, old longevity type porcelain pots, etc. there are a wide variety of exquisite, elegant and colorful. However, ceramics as containers have the disadvantages of fragility and weight, and now they are less and less used. 1.5 tin can tin can is a traditional high-grade tea packaging container. There are not many varieties. The common ones are gourd shaped, cylindrical, etc. Tin cans are excellent for preserving the quality and flavor of tea, because tin has a strong resistance to various natural corrosion, and the ability to retain fragrance is particularly strong. In 1745, after the Gothenburg of the Swedish east india company hit the reef and sank, it was salvaged to sea in 1984, more than 230 years later. It described the arduous current situation of a resource-based city such as Jixi City, Heilongjiang Province. 370 tons of tea on the ship were submerged in the sea, and more than 1000 kilograms of tea remained intact due to tight tin cans. However, because tin cans are too bulky, low strength, and high cost, a tin can packed in pairs costs dozens of yuan, so this kind of packaging is difficult to develop. Tea packaging after the reform and opening up, especially since the 1990s, with the rapid development of science and technology, the scientific and technological content of tea packaging is increasing, and the packaging is developing in the direction of exquisite, practical, novel and diverse. At present, tea packaging in the market has broken through the original traditional mode, with the emergence of cartons, paper cans, metal cans, lined bags, composite film bags, bamboo (wood) boxes, glass cans and so on. 2.1 cartons and cartons are processed with corrugated cardboard as raw materials. They have the advantages of low cost, portability, easy processing, easy storage, recyclability and so on. They are generally used for large packaging with lined bags, and also generally used as the outer packaging box of cans and boxes. The box surface can also print patterns, words, marks, etc. of goods according to different requirements. Corrugated boxes have gradually replaced wooden boxes and metal boxes. At present, they are mostly used in packaging materials for transporting tea, which are also equipped with mold correction and adjustment devices on the machine head. They are mainly used in tea processing plants. The carton specifications are designed by the manufacturers according to their needs. The common ones are: 400 × four hundred × 600mm, 400 × five hundred × 600mm, 460 × four hundred and sixty × 460 mm, 435 × four hundred and thirty-five × 435 mm, 470 × three hundred and eighty × 470 mm, 410 × three hundred and eighty × 450 mm, etc. When loading tea, it is lined with a kraft paper bag and aluminum foil bag, or a polyethylene plastic bag. 2.2 metal cans packaging metal cans are made of tinned steel sheets or galvanized steel sheets. The cans are octagonal, cylindrical, flat, etc. there are two kinds of single-layer covers and double-layer covers. From the perspective of sealing, there are two types: general tank and sealed tank. Generally, the tank is packed with deoxidizer to remove the oxygen in the package. The sealed tank can be used for vacuum packaging. The protective effect of metal cans on tea is better than that of composite films, and the appearance is beautiful and noble. 2.3 the bag lined box (can) packaging box is paper composite, the upper and lower covers of the can are paper covers or metal (iron or aluminum) covers, and the can body is made of offset paper/paper aluminum foil/polyethylene, etc. In addition, there is a kind of teapot. The top cover of the pot is an easy pull cover (aluminum). The tea bags are loaded one by one from below, and then nested tightly from the bottom with a hard plastic cover. When it is enabled, the pull cover can only be opened from above. These packages not only have the function of composite film bag packaging, but also have the protective, rigid and other functions of carton packaging. They have a strong fresh-keeping effect, which can be comparable with iron cans, and the price is lower than iron cans. The properties of moisture-proof, rust proof, fragrance preservation and heat insulation are better than traditional iron cans. They combine paper, plastic and metal, and have the advantages of beautiful appearance, firmness, lightness, convenient use, economy and environmental protection. If you don't put tea in small bubble bags, it's best to cover the box with plastic bags to increase the protective effect. Its shapes include round cans, four corner cans, six corner cans, octagonal cans, flat paper cans, etc. Specifications include 50g, 100g, 200g, 250g, 500g, etc. The outer package is a gift box that can be used as a gift. The gift box is generally packed in two cans, four cans and six cans, plus an outer box and a handbag. 2.4 bamboo (wood) boxes are mostly used as gift packaging. This kind of container is usually finely made, and the surface is printed with beautiful patterns, which has good decoration. At present, wooden packaging is widely used. Wooden packaging is antique and unique in shape. It applies various artistic means such as carving, inlay, calligraphy and so on. There are many works of famous artists, which are very rich in traditional Chinese culture, have strong market appeal, and have a certain collection value. In addition, there are independent art picture frames and electronic music gift boxes with electronic music lighting effect on the keys. The main disadvantage of bamboo (wood) box packaging is that the sealing effect is poor, which is not conducive to the long-term preservation of tea. Therefore, aluminum foil laminated bags are often used as the inner packaging, or tin foil is used on the inner packaging of wooden boxes, or tea is first packed in cans, and then bamboo (wood) boxes are used as coats, so as to ensure the sealing of tea as much as possible. The relatively high price of bamboo (wood) boxes is also one of the reasons that hinder their promotion. 2.5 there are many kinds of composite films for packaging tea in composite film bags, such as stretched polypropylene/polyethylene, moisture-proof cellophane/polyethylene/paper/aluminum foil/polyethylene, biaxial stretched polypropylene/aluminum foil/polyethylene, etc. the composite film has excellent gas resistance, moisture resistance, fragrance retention, odor resistance, etc. At present, polyester/aluminum foil/polyethylene composites are better used in the market, followed by stretched polypropylene/aluminum foil/polyethylene composites. These are commonly known as aluminum foil composite films, which are the best in moisture-proof, oxygen barrier, aroma retention and shading properties in daily tea small packages. The packaging forms of composite film bags are various, including three side sealing shape, self-supporting bag shape, folding button shape, etc. In addition, the composite film bag has good printing and coloring performance and good heat sealing performance. It has a unique effect when used for sales packaging design. Therefore, many tea packages are packaged with composite film bags. 3 unique oolong tea packaging in recent years, oolong tea packaging is original and unique. It is a kind of packaging with the fastest progress, the highest artistry and the best added value. Generally, sterile packaging, nitrogen filling or vacuum packaging are used. Taiwan Oolong tea and Minnan oolong tea are curly, tight and spherical in shape. Tight packaging can ensure the original shape and is not easy to break. Most of them are vacuum packed in composite aluminum foil bags, which is conducive to the preservation of quality for a long time. At present, general vacuum packaging machines are divided into different models according to the maximum packaging capacity, such as 1.5kg, 2.5kg, and z-axis 5kg for the gantry mechanism column. Each model can be packaged with one bubble (7G, 10g) and 50g, 100g, 250g, 500g, 3kg, 5kg and other bagged tea respectively. Northern Fujian oolong tea (such as Wuyi rock tea, cinnamon, Narcissus) and Guangdong oolong tea are twisted and long because of their shape. If vacuum (negative pressure) packaging is used, the tea is easy to break, and most of them are packed in composite aluminum foil bags and polyethylene bags under normal pressure. At present, the medium and high-grade tea packages of Oolong tea in Southern Fujian and oolong tea on the table are generally packed in small bubbles (vacuum pumping with composite aluminum foil bags), with one bubble narrow bags (which can contain 7g-8g of tea) being the most common. At the same time, there are also one bubble wide bags (which can contain 8g-10g of tea), and there are one or two small gaps on the composite aluminum foil bags, which are convenient for tearing the small bubble bags when they are used; In order to show the noble "identity" of their tea, some tea leaves are packed in plastic bubble bags, and then put into composite aluminum foil bags to vacuum. This packaging method has several advantages. First, it is convenient to drink. One bubble bag (wide bag or narrow bag) means the amount of tea used at one time without weighing; Second, it is convenient to carry. It is convenient and fashionable to go out or get together with friends and take it out with you; Third, it is easy to store, and the packaging with this independent structure will not affect other teas in the process of use; Fourth, improve the value of tea products. After such small bag packaging, the grade and taste are obviously improved, giving people a sense of elegance. It is also one of the necessary inner packaging forms of gift tea (oolong tea) today. Practice has proved that small bubble bags are recognized by oolong tea consumers