What are the common materials of tea packing bags?
Metal cans for the advantages of extrusion resistance, good texture, early mainly with PE bag packaging for tea packaging, but because the price is high, and easy to corrosion and rust deformation, has been gradually phased out. The metal cans within the paint smell and cover mouth closed enough should not be used alone.
Although the glass tank is strong in air resistance and damp proof, it is light, fragile, heavy and expensive. Magnetic tank or pots can be dark but with a glass jar similar fragile and heavy, if handled improperly box, easily lead to tea flavor absorption and moisture permeability, hygroscopic bag or carton rupture, tea packaging materials of these materials are not ideal.
The aluminum foil laminated bag is beautiful and elegant. It has the advantages of non light transmission, moisture resistance and good oxygen resistance. Only the price is more expensive than the PE bag, and the extrusion can be used alone. Laminated aluminum foil bag for vacuum or nitrogen or deoxidizer, with packing boxes or synthetic paper cans, the tea storage moisture, gas, light, oxygen can be improved, and low temperature storage is the best method for preservation of tea.
Synthetic paper cans are the most widely used packaging materials at present. Their advantages are economical, light and beautiful. They are breathable, breathable, and should not be used alone. It is best to use PE bags or aluminium foil laminated bags for internal packing.
PE bag (plastic bag)Polyethylene bags, or PE bags, are widely used packaging materials at present. There are two kinds of low density PE bags and high-density PE bags. The low density PE bags are breathable and breathable, while the high-density PE bags are smaller.The advantages of PE bag are economical, cheap and damp proof. Its disadvantages are light transmission and poor air resistance. It can not be used in tea packaging individually. The best can add a layer of light resistance and low permeability of the outside packaging using polyethylene bags, such as synthetic paper cans, cans and other PE bag permeability is bigger, also difficult to solve the problem of oxygen in the packaging bag, and is not the ideal packaging material.
