Soya-bean milk and milk for breakfast, juice for lunch and wine for dinner all belong to the category of liquid food. Liquid food is involved in every aspect of people's lives, so the market demand is high. Today, we summarize the common materials and shapes of liquid packaging.
Glass bottle
The main characteristics of glass packaging containers in the packaging industry are: non-toxic, tasteless; Transparent, beautiful, good barrier, airtight, rich in raw materials, low price, and can be used for many times. And has the advantages of heat resistance, pressure resistance, cleaning resistance, both high temperature sterilization, but also low temperature storage.
The beverage can be better stored, the gas will not be lost in the process, and then there will be no impact on the taste, taste more delicious, popular with consumers. Beer, liquid condiments and so on choose glass containers for filling.
cans
Cans are light in weight, small in size, not easy to break and easy to carry. Food cans can be moisture-proof, waterproof, dust-proof and corrosion-proof. The separation of dust, water and other liquid materials; Prevent packaging from contamination and erosion; Prevent uv penetration, ambient temperature change, protect the packaging from sunlight and uv damage.
Liquid food packaging comes in two cans and three cans, and there is a new aluminum BC can. The two cans are mainly made of aluminum alloy, which are mainly used for the packaging of carbonated drinks. The three cans are mainly tin-plated thin steel plates (tinplate), which are mostly used for beverage packaging without carbonate gas.
Aluminum BC cans are made from the material aluminum, which is more lightweight. It can more effectively isolate sunlight and oxygen, lock up fresh, prevent drinks from spoilage, but also more suitable for long-distance transportation, reduce damage rate, so it has been the focus of more enterprises who want to layout high-end drinks.
Composite plastic bag
Composite plastic is a common material in liquid beverage market, which is convenient to carry and low price.
Liquid food commonly used plastic materials include PE, BOPP, LDPE, BOPA and so on, this material composite plastic bag has high strength, impact resistance, burst resistance, good barrier, good rigidity can stand, stress cracking resistance, good sealing characteristics, can ensure the safety of liquid food in the process of transportation and storage.
Common composite structures include BOPA/LLDPE, BOPA/ enhanced BOPP/LLDPE, PET/BOPA/ enhanced BOPP/LLDPE, etc. The material of the bottom of the independent bag can be BOPA/LLDPE. The inner layer is modified PE, which has good sealing pollution resistance. Strengthening BOPP increases the mechanical strength of the material and strengthens the barrier performance of the material. PET improves the water resistance and mechanical strength of materials.
Compound plastic bag common bag type is mainly independent bag, shaped bag, eight side sealing flat bottom bag, liquid food packaging bag will generally add suction mouth or imitation suction mouth, which is not only convenient for liquid food dumping, add mouth after the product can be repeated sealing, means that can be repeatedly unsealed.
Standing bag is the most common type of liquid packaging, can stand on the shelf, has a good display effect. Shaped bag is the deformation of the self-reliance bag, the shape is more unique, beautiful, usually designed to product-related modeling or bottle modeling, promote consumers to buy.
