As a special class of commodities, due to their own and objective conditions of the limitations, the packaging of tea is different from the packaging of other general commodities. Today, the commonly used tea packaging methods are mainly the following.
2.1 metal cans
Metal cans packaging breakage, moisture, sealing performance is very excellent, is the more ideal packaging for tea. Metal cans are generally made of tin-plated sheet steel, can shape in the square and cylindrical, etc., the cover has a single layer cover and double cover two kinds. From the sealing up points, there are two kinds of general cans and sealed cans. In packaging technology, general cans can be sealed into the deoxidizer packaging method to remove the oxygen in the package. Sealed cans are more inflatable, vacuum packaging. Metal cans of tea protection is better than composite film, and the appearance of beautiful, noble, the disadvantage is the high cost of packaging, packaging and commodity weight ratio is high, increasing transportation costs. Exquisite design of metal cans suitable for high-grade tea packaging.
2.2 carton packaging
Carton is made of whiteboard paper, grayboard, etc. After printing and molding, carton packaging to prevent easy breakage, shading performance is also excellent. In order to solve the carton packaging tea aroma evaporation and from the outside world from the influence of odor, generally use polyethylene plastic bag packaging tea and then loaded into the carton. The disadvantage of carton packaging is susceptible to moisture, now in the past few years the emergence of paper-plastic composite boxes, to overcome the problem of moisture susceptibility of the carton, this inner layer of plastic film layer or coated with moisture-resistant coating of cardboard as packaging materials for the production of the box, both with the composite film bag packaging features, but also with the carton packaging with the protection, rigidity and other properties. If you use a plastic bag inside as a small bag, the protective effect is better.
2.3 Plastic Molding Container Packaging
Polyethylene, polypropylene, PVC and other plastic molding containers have a generous, beautiful, packaging and display effect is good, but its sealing performance is poor, in the tea packaging, more as the use of outer packaging, packaging, more than one composite film plastic bag package.
2.4 composite film bag packaging
Plastic composite film has a lightweight, unbreakable, good heat sealing, price is suitable and many other advantages in packaging is widely used. Composite film for tea packaging there are many kinds of, such as moisture-proof cellophane/polyethylene/paper/aluminum foil/polyethylene, biaxially oriented polypropylene/aluminum foil/polyethylene, polyethylene/polyvinylidene chloride/polyethylene, etc., the composite film has an excellent gas barrier, moisture resistance, aroma retention, odor protection, etc.. Since most plastic films have a light transmittance of 80% to 90%, in order to reduce the transmittance, UV inhibition can be added to the packaging material or the light transmittance can be reduced by printing and coloring. In addition, aluminum foil or vacuum aluminized film can be used as the base material of the composite material for light-shielding packaging. Composite film bag packaging in a variety of forms, there are three-sided sealing shape, stand-up pouch shape, folding shape, etc.. As the composite film bag has good printability, with its sales packaging design, to attract customers, promote tea sales more unique effect.
2.5 paper bag packaging
Also known as the bag of tea, this is a thin filter paper for the village material bag packaging, with the paper bag together into the tea set. The purpose of the filter paper bag packaging is mainly to improve the leaching rate, but also to make the tea factory's end of the tea to be fully utilized. Due to the bagged tea has brewing fast, clean and hygienic, the amount of standard, can be mixed, convenient slagging, easy to carry, etc., to adapt to the needs of modern people's fast-paced life, in the international market is very popular. Early bagged tea generally have bag line to meet the convenience of multiple steeping, due to consider the requirements of environmental protection, nowadays gradually popular without bag line of bagged tea.
2.6 Iron Box Packaging
Today people also utilize iron boxes for tea, which will prevent tea from getting damp under certain conditions, and is also a more popular tea box.