The tea bags commonly used materials have?

Tea health achievements in recent years popular people attention, some merchants in order to promote the tea sales, emphasized on packaging marked curative effect, easy cause the tea products should be based on general food, health food or medicine to deal with doubts and disputes. This tea industry improved field for the tea packing label should return to the essence of tea is the daily habits of natural health products, prevent needless controversy. Now tea packaging label does not have strict rules, is mainly due to the tea business mostly from produces, self-control, the situation, but clear signs tea varieties, manufacturing date, origin, manufacturers and the way of drinking will help tea promotion and branding. Generally applicable to the tea packaging materials include: a, PE bag ( Plastic bag) Polyethylene bag or PE bag packaging materials for which has been widely used now, generally have low density PE bag with high density PE bag two kinds, low density PE bag of moisture permeability, gas permeability is bigger, high-density PE bag is small. PE bag for economy, the advantages of cheap, well protected against dampness is beautiful, its shortcomings is pervious to light, poor gas proofness, not a single application to tea packaging. Application of polyethylene bag packaging is best able to add a layer resistance and permeability is low packing light, such as synthetic paper cans, tins: PE bag of permeability is bigger, also difficult to deal with the sack oxygen, is not the ideal packaging material. Two advantages, metal tin metal tins for extrusion resistant, simple sense is good, the early main cooperate with PE bag of the inner packing for tea packaging, but the price is expensive, rust corrosion and easy deformation, has gradually become obsolete. Metal tins of paint smell and unfavorable use alone enough in sealing. Three cans of synthetic paper, synthetic paper cans is now the most widely used packaging materials, its advantages to economy, light and beautiful, breathable, moisture permeability is still high, also should not be used alone, had better cooperate with PE bag or aluminum foil laminated bag to do the inner packing. Four aluminum foil, aluminum foil laminated bag laminated bag is beautiful and easy, its advantage is not pervious to light, well protected against dampness, resistance, excellent oxygen is a PE bag expensive, alone have extrusion problems. Aluminum foil can be laminated bag vacuum or nitrogen filled or deoxidizer processing, packaging cartons or synthetic paper cans, gas storage well protected against dampness, resistance is related to tea, avoid light, no oxygen can improve the processing, low temperature storage was the most complete preservation tea again. Five, glass jar, magnetic pot, wooden box, carton glass jar is excellent resistance gas well protected against dampness, but pervious to light, fragile, heavy, expensive. Magnetic cans or jars can avoid light but fragile, heavy likewise with the glass jar, wooden box, if handled properly, can easily lead to tea absorption odor absorption and air, cartons or paper bags easy to moisture absorption is broken, and these materials are not ideal tea packaging materials. Six, nitrogen filled or vacuum packaging vacuum packaging because bags will shrink, to avoid squeezing collision and beautiful again, appropriate and protective packaging. Nitrogen-filled packaging will get a bag, nor extrusion in order to avoid blasting bag. Both need to add the outer packing, preservation is good, but the price is more expensive.