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Beverage paper packaging classification and composition
Jan 13, 2018

In fact, pure paper packaging materials in the drink is difficult to use, we said beverage paper packaging, almost all refers to the paper composite materials. Composite paper packaging is widely used in beverages, especially non-carbonated beverages. Dairy products are the largest areas of application, fruit juice, tea and coffee are the most widely used varieties of composite paper packaging. At present, almost all the larger milk, fruit juice, tea beverage manufacturers have paper packaging products listed.

 

Typical composite paper packs used in the beverage industry include Tetra Pak and the combibond using ultra-high temperature sterilization processes, as well as International Paper or the four-nation roof packs that require refrigeration.

 

In the composite structure, the use of ultra-high temperature sterilization process Tetra Pak or Kangmei box demanding packaging materials, the general use of paper / plastic / aluminum foil and adhesive layer of seven-layer composite structure,

 

To ensure instantaneous sterilization can withstand ultra-high temperature, and strictly block the air, water intrusion. Ultra-high temperature sterilization of beverages or dairy products, also known as "sterile packaging", can be stored at room temperature, and the shelf life of up to one year.

 

In the composite structure, the use of ultra-high temperature sterilization process Tetra Pak or Kangmei box demanding packaging materials, the general use of paper / plastic / aluminum foil and adhesive layer of seven-layer composite structure,

 

To ensure instantaneous sterilization can withstand ultra-high temperature, and strictly block the air, water intrusion. Ultra-high temperature sterilization of beverages or dairy products, also known as "sterile packaging", can be stored at room temperature, and the shelf life of up to one year.

 

Ultra-high temperature sterilization beverage packaging can be stored at room temperature, very suitable for the status quo of China's cold chain is not complete, so the rapid development in our country. However, ultra-high temperature sterilization process brings convenience but also affects the taste of the beverage, will destroy or change the inherent flavor of the beverage. In recent years, therefore, paper composite packaging represented by International Paper's ridge packs has emerged as a unique force.

 

Relatively speaking, paper packaging structure of International Paper is relatively simple, because the processing technology does not need to withstand ultra-high temperature, generally 4 layers of paper / plastic structure, there is no aluminum foil layer, the barrier is not 7-storey high. Products to be refrigerated, shelf life of not more than 40 days. However, the taste of the beverage to maintain better, less loss of nutrients. Especially as China's cold chain and sales environment continues to improve, as well as consumer demand for improved beverage taste, packed in fresh paper packaging beverage in the big cities began to become popular. Although the proportion of paper-based fresh-keeping beverages can not yet be compared with that of ultra-high-temperature germicidal drinks, from the perspective of international development and the recent development trend in our country, fresh-packed drinks will be the focus of the development of China's packaged drinks in the future.

 

 

The type of green packaging material

 

1, reuse and recycling of packaging materials

 

Reuse packaging, such as beer, beverages, soy sauce, vinegar and other packaging repeated use of glass bottles. Sweden and other countries to implement polyester PET bottles and PC bottles repeated reuse of more than 20 times. Wellman in the Netherlands and Johnson in the United States carried out 100% PET container recycling.

 

Recycled packaging, such as polyester bottles after recycling, can be regenerated by two methods, the physical means refers to the direct and thorough purification of crushed, without any residual contaminants, the treated plastic and then directly used for recycling packaging containers. Chemical means refers to the recovery of PET crushed after washing with the depolymerization agent methanol water, ethylene glycol or diethylene glycol and so on under the action of a basic catalyst, the PET all de-polymerization monomer or partial depolymerization into oligomers, and then purified Re-polymerize monomers or oligomers into recycled PET resin packaging material.

 

Recycling and recycling of packaging materials, only to extend the life of plastic and other polymer materials as packaging materials, when reaching its life, still have to face the waste disposal and environmental pollution problems.


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