Foreign agricultural and sideline products fresh packaging kaleidoscope

Grain preservation in the method:

Bulgarian agricultural experts have invented a new, simple and economical method for storing grain. After harvesting of the crop, the seeds are lightly dried and then filled into a large pocket made of polyethylene material and then sealed. The grain thus preserved will not be volatile or moldy, and will be preserved until the second year of spring. The nutrient content of the grain will not be reduced at all.

Preservation bags:

A Japanese company introduced a strong sealing bag made of a plastic called “Cikron”, which has an excellent oxygen barrier and uses it to package new rice. The effect of fresh preservation is particularly good. It can keep the color, smell and taste of rice unchanged for a long time, and the carbon dioxide produced in the bag has the function of preventing insects and mildew.

Preservation of fruits and vegetables:

A U.S. company has developed a new method that keeps cut fruits and vegetables fresh. The researchers used cheese and acetylated glycerol extracted from vegetable oils to make a special covering that could prevent the transparent, edible, thin film-free slivers from sticking to the surface of cut vegetables and fruits. Dehydration prevents blackening of the fruit and prevents the intrusion of microorganisms.

Disposable plastic wrap for fruits and vegetables:

Japanese experts have developed a disposable plastic wrap for fruits and vegetables. It consists of two layers of semi-permeable nylon packaging machine 'target=_blank' and a transparent film with high osmotic pressure between the two layers. The packaging of fruits and vegetables with this cling film can slowly absorb the moisture oozing from the surface of fruits and vegetables, thereby achieving the purpose of preservation.

Edible fruit preservatives:

A British company has made a kind of edible fruit preservative. It is a translucent emulsion made of sucrose, starch, fatty acids and polyesters. It can be sprayed, painted or impregnated to cover apples, oranges, The surface of fruits such as watermelons, bananas and tomatoes has a shelf life of over 200 days. This type of fresh-keeping agent formed a layer of sealing film on the surface of the fruit, so it can prevent oxygen from entering the interior of the fruit, thereby prolonging the ripening process of the fruit and playing a role in freshness preservation. This preservative can be eaten with fruit.

Fruit fresh packing box:

A paper company in Japan produced a fresh fruit packaging box. It is sufficient to add a layer of polyethylene film on the corrugated liner of the corrugated carton, and then it is coated with a waterproof wax coating containing trace amounts of fruit disinfectant to prevent the fruit from evaporating and restraining the breath and achieve the purpose of preservation. Pack the fruit in this box to keep the fruit fresh within a month.

Electronic function forklift equipment:

Made in France an electronic function preservation equipment. Put this machine in the fruit and vegetable storage room and use it to store fresh fruits and vegetables for 75 days. The preservation machine utilizes the negative oxygen ions and ozone generated in the negative static field of the high voltage to achieve the purpose of preservation; the negative oxygen ions can purify the enzymes in the metabolic process of the fruits and vegetables, thereby reducing the respiration process of the fruits and vegetables, and reducing the generation of the fruit ripening agent ethylene; Ozone is a strong oxidant. It is a good disinfectant and bactericide. It can kill and eliminate microorganisms and their toxic substances on fruits and vegetables, inhibit and delay the decomposition of organic matter, thereby prolonging the storage period of fruits and vegetables.

Vegetable room temperature preservation:

The United Kingdom invented a high temperature storage technology for bulbs. This technology uses high temperature to inhibit the germination of bulbous vegetables. The storage room temperature is controlled at 23 °C, and the relative humidity is maintained at 75%. In this way, long-term storage and preservation can be achieved. It is reported that onions can be stored for 8 months under such conditions.

Decompression treatment method i

Japan has developed a technology for the preservation of fruits and vegetables under reduced pressure. This kind of preservation method is mainly used to reduce air pressure, cooperate with low temperature and high temperature, and use low-pressure air to circulate and other measures to create a favorable storage environment for fruits and vegetables. The low pressure in the storage chamber is generated by the vacuum pump pumping the room air. The low pressure is controlled at 100mm Hg and the minimum is 8mm Hg. The relative humidity in the air is controlled by a humidifier installed in the room, which is generally more than 90%. This method reduces the oxygen content in the room during the pumping process, keeps the respiration of the fruits and vegetables at the lowest level, and also eliminates some of the indoor gases such as carbon dioxide and ethylene, which is conducive to the long-term storage of fruits and vegetables.

Air fresh fruit and vegetable preservation method:

In order to keep fruits and vegetables fresh during the airlift process, a U.S. company invented a new method to reduce oxygen and increase nitrogen content in packaging boxes to keep fruits and vegetables fresh. This method uses a new type of air conditioning box with air-conditioning performance. This package has a special film, which can absorb oxygen molecules and allow nitrogen to pass through. After entering the package through the film in the air, the content of nitrogen in the box can be as high as 98% or more, so that the respiration of fruits and vegetables can be slowed down and the purpose of keeping freshness for a longer period of time can be achieved.

New fruit and vegetable fresh-keeping bags:

A U.S. company launched a new type of fruit and vegetable fresh plastic bag, which can extend the shelf life of fruits and vegetables and reduce the loss caused by excessive aging of fruits and vegetables. This kind of packaging bag is made of natural activated clay and polyethylene. It is like a very fine filter screen. Gases and moisture produced during the ripening process of fruits and vegetables can pass through the packaging bag. Fungus is not easy to grow in the bag, so fruits and vegetables can be made. The freshness is extended by more than 1 time.

New package shipping live shrimp i

Hakodate City Hokkaido Food Co., Ltd. has developed a special packaging for the delivery of live shrimp in order to solve the problem that it is difficult for citizens to eat live shrimp. The package uses polyethylene as the inner layer, foam styrene as the outer layer, and crushed ice between the double layers. The inner layer should prevent water leakage, and the outer layer should be prevented from being damaged by impairing the polyethylene in the movable tank where the live shrimp is moving. The seawater filled with sterilized water and the bones can be filled with oxygen, and then sealed with a lid and transported. With this method, the survival rate of live shrimp can be maintained at more than 90% even in the condition of an external temperature of up to 40 °C within 24 hours. When the outside temperature is low, the survival rate of live shrimp will be higher

Aquatic vacuum packer:

A Japanese company developed a simple vacuum wrapper that uses the suction of a vacuum cleaner to degasify aquatic products. Allegedly, just connect the household vacuum cleaner and place the upper part of the plastic bag containing the aquatic product in the wrapper. With this wrapper, different sizes of aquatic products can be vacuum-packed for small-scale aquatic product processing departments.

Water-soluble pesticide packaging film:

The Paragon Company in the United Kingdom produced a new type of polyethylene film that dissolves in water and has been used as a package for accurate quantification of pesticides before they are used in water. This kind of packaging film has no mildew, can be antistatic, can be heat-sealed, and can be colored and printed. It is a one-time use item, which can effectively ensure that the gas in the package is not leaked and can resist the corrosion of various chemical pesticides.

Corrugated carton technology research and development new achievements

Cockroaches as a traditional green packaging U material. With its advantages of light weight, high strength, easy processing, easy storage and handling, it has been widely used in the packaging and transport packaging of various products. In recent years, although the market for corrugated boxes has been affected by the emergence of recyclable plastic containers, a recent survey by the European Federation of Corrugated Board Manufacturers and the French Corrugated Cardboard Packaging Association shows that although recyclable plastic boxes are in Europe, The market share in fresh product packaging reached 31%, but corrugated cardboard packaging still holds the first place with 48.2% market share in Europe and will continue to maintain this leading position in the next few years. According to relevant experts, with the development of modern science and technology, many countries have made some new achievements in the research of corrugated box technology.

The development of emblem type corrugated cardboard

The “C” crucible is 40% lighter than solid fiberboard, while the cardboard strength is increased by 40%. This means that less packaging material can be used to achieve the same retention performance. The inner packaging product can be directly loaded. Transport packaging, eliminating the need for intermediate packaging, saving packaging costs. At present, companies in the United States, Sweden, Germany, Spain, etc. have begun to expand the production scale of F楞 and G楞, and have even begun to apply N楞 (楞高O.46mm), 0楞 (O.30mm) and other more detailed types. Corrugated paper material.

Wax cartons recycling new process

Recently, there has been a patented processing technology named XTrax. It has been proven that this technique can successfully separate the pulp fibers of the waxed carton from the wax and reduce the wax content of the paperboard to a reasonable level. In particular, this technology does not require complicated equipment, harsh operating conditions, or changes in beeswax itself. The emergence of this new technology completely solves the problem of recyclability of waxed corrugated carton boxes, and it also makes many wax-coated corrugated carton factories free from the threat of "collapse."

Corrugated box molding system

The new technology CE+P system uses the cam as the main driving force to transfer energy to the sliding crank assembly. The carton blank is transferred from a large-capacity supply hopper to a carton forming position by a plurality of adjustable collection rollers through a continuously operating vacuum supply device. Each roller is equipped with a sensor device. Once the carton blank arrives at the designated position, it is step-folded and the handles on both sides of the conveyor belt ensure that each molded carton is square. The cE+P system has a box making speed of 25 per minute.

Carton Container Management System

Since the agricultural products come from different growers and markets, the fruits and vegetables generally shipped to retailers are mixed and loaded with cartons of different sizes and styles, which can easily cause product damage. In order to solve this problem, EasyStak uses international standards to regulate two key indicators of corrugated boxes: stacking ability and mixed assembly load performance. It is not only suitable for fruit and vegetable packaging, but also can be widely used for packaging of fresh products such as yogurt, in addition, can also be used for dessert and frozen food packaging.

Tile pallets standardization

In view of the different sizes of corrugated cardboard packaging of different manufacturers, in order to better take advantage of the advantages of corrugated cardboard packaging, it has adapted to the actual conditions of the markets for fruits and vegetables in European countries. Convenient for the transfer of fresh products between European countries and group products, the European Federation of corrugated board manufacturers, with the assistance of relevant companies, has introduced the size standards for corrugated paper packaging trays for fresh products such as vegetables and fruits. The main purpose of the standardization of the size of the corrugated cardboard tray is to unify the external dimensions of the tray and optimize the stacking of the paper tray on the wooden tray.

Source: China Packaging Industry