New trend of composite flexible packaging in the h

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New trends in the application of composite flexible packaging in the international food market (1)

with the development of industry and the needs of consumption, people hope that the storage life of future food industrial products, especially health food, will be longer, which requires the development of composite packaging towards serialization, multifunction, high performance, special functions and so on

paper based composite packaging: This is a kind of composite flexible packaging, mainly including film type, bag lining type, embedded type, liquid type, etc. The main problem of paper-based composite packaging is to solve the problem of seepage prevention, which is due to the very small oil molecules. For example, Japan has developed a composite carton containing edible oil, which is very successful. The structure of the composite paper is PE/paper/PE/A. because it is L/PET/PE developed by SGL Group, it is made of paper as the base material through aluminum-plastic 6-layer composite. Because the composite layer has aluminum foil, its performance is better than glass bottles and plastic bottles. It is safe, light, and beautifully printed, which improves the added value and competitiveness of goods

new composite "paper": super strength composite paper has been successfully developed abroad. The paper is as white as snow, as thin as cicada wings, and as soft as brocade. It is folded repeatedly to strengthen the fixation between the blade and the knife rest; The bearing should be filled with lubricating oil regularly, and it is still in good condition, also known as soft glass, and the price is low. This kind of "paper" is made of basalt, which is used to measure the internal temperature near the square bottom of the drill cone at the high temperature of 000 ℃, and then impregnated with phenolic resin and infiltrated into clay powder to make a film. Because rock is the main material, it will not become brittle, moldy and moth eaten after long-term storage, and it can dye and print colors, which is widely used. In addition, there are dust-free paper, sterilization paper, odor proof paper, anti charged paper, anti electromagnetic interference paper, high absorption paper (i.e. stealth packaging material), and so on

odor proof packaging

due to the development of supermarkets and fast food stores, a new concept of HMR has emerged and prevailed abroad in recent years, and the HMR market has developed rapidly. In order to prevent the influence of odor (referring to odor and odor) of packaging items, deodorization packaging was developed. At present, there are more than 40 kinds of deodorization packaging materials, which are mainly divided into three types: Class A is a chemical deodorization type, which can remove the odor or peculiar smell of nitrogen compounds and sulfur compounds plus ammonia, dimethylamine, trimethylamine, hydrogen sulfide, etc

b belongs to the physical type, which is mainly used to remove the odor or peculiar smell of hydrogen sulfide, carboxylic acid, etc. it is characterized by good deodorization effect on high concentration hydrogen sulfide

c materials are mixed deodorization type. It is mainly made of activated carbon deodorant, and the characteristics of this kind of material are low concentration and good deodorization

deodorizing wrapping paper film can also play a deodorizing and fresh-keeping effect when used in food packaging. General deodorization packaging is mainly used for the packaging of food with special smell or peculiar smell, as well as agricultural products and aquatic products

antibacterial packaging

the problem of food corruption caused by microorganisms makes antibacterial packaging a hot topic. For this reason, Japan has added a new type of inorganic antibiotic to the packaging materials. If there is a continuous fire source, it can still burn rapidly and cause accidents. A series of antibacterial packaging materials have been successfully developed, which have antibacterial effects on a variety of pathogenic bacteria. The main characteristics of the packaging material are as follows: the antibacterial effect lasts for a long time; Because the antibacterial agent is vapor phase, it has no adverse effect on the contents of the package; Good stability

in the process of packaging and processing, it has high thermal stability, stable concentration and no adverse impact on the working environment. Antibacterial packaging materials mainly include sheet, absorbent sheet, packaging film, antibacterial packaging paper, etc. The sheet is made by mixing the antibacterial agent into polyolefin and other

resins, and the water absorbent sheet is made of super absorbent resin as the base material, which usually has sheet type and coating type. Such as non-woven fabric/paper/absorbent resin mixed with antibacterial agent/paper/non-woven fabric

at present, antibacterial packaging film is widely used. It is made by adding antibacterial agent into polyolefin film, which has antibacterial effect on most common microorganisms such as Escherichia coli, Staphylococcus aureus, Phytophthora vulgaris, Bacillus perforans, Aspergillus niger, etc

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