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Who knows the technical characteristics of intelligent packaging?

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It’s better to know the application of intelligent packaging

the automatic efficiency is more than 98%, accurate and efficient. It can automatically give an alarm and put on the bag automatically due to abnormalities; Opening; charge; Calibration; delivery; Palletizing.

[Abstract] the characteristics and functions of intelligent technology in packaging are studied. Aiming at the current international popular intelligent packaging, according to the characteristics of its technology, it is divided into functional material intelligent packaging, functional structure intelligent packaging and information intelligent packaging. The technical difficulties of various packaging R & D are analyzed, and it is pointed out that the development of new intelligent packaging technology in China has broad prospects

the development of packaging technology is developed with the development needs of commodity circulation. For commodities, packaging mainly plays the role of protection, isolation, quantification, decoration and description, which is also the function and characteristics of traditional packaging. With the development of market economy and the progress of technology, people add more intelligent technology components to packaging to meet the requirements of increasingly complex circulation system and users’ needs for product functions, so that it has functions that traditional packaging technology can not achieve. Therefore, it is of great practical significance to understand and study intelligent packaging technology to adapt to the development of China’s packaging industry and global economic integration

intelligent packaging includes: functional material type intelligent packaging, functional structure type intelligent packaging and information type intelligent packaging. It is embodied as follows: actively intervene and ensure the quality and circulation safety of commodities by using new packaging materials, structures and forms; Use information collection, management, control and processing technology to complete the optimal management of transportation packaging system

1 Characteristics and development of functional material intelligent packaging technology

functional material intelligent packaging refers to the application of new intelligent packaging materials to improve and increase the functions of packaging, so as to achieve and complete the purpose of specific packaging. At present, the developed material type intelligent packaging usually adopts photoelectric, temperature sensitive, humidity sensitive, gas sensitive and other functional materials, which can “identify” and “judge” environmental factors. It can identify and display some important parameters such as temperature, humidity, pressure, sealing degree and time of packaging micro space. This is a promising functional packaging, which is particularly important for packaging products that need long-term storage

the intelligent packaging of this material has a wide range of uses, the technology has developed very rapidly, and many products with mature technology have appeared. American optical coating test center and PA technology company have developed a plastic film that will change color under the action of external force. The film is coated with reverse interference coatings of different wavelengths. Under normal circumstances, the coating is bright. Once used, the coating begins to peel off, the film turns gray, and the peeling part will also produce patterns, which provides a warning signal that the package has been unsealed. This material is very suitable for packing and sealing. American International Paper Company uses an ultra-thin soft battery developed by Israel energy paper company () for the packaging of some consumer products. This new battery can be “printed” on the packaging of products like ink to add light, sound and other special effects, which can enable manufacturers to more effectively attract consumers through product packaging. This kind of packaging materials also include new conductive polymer materials developed in the 1990s, such as polyaniline (Pan) film, poly (ethyl) thiophene (peot), poly (M triple) thiophene (MPTP), poly (butyl) thiophene (PBTH), poly (3-alkyl) thiophene (P3AT), etc; Structural (conjugated) conductive polymers also invented poly-p-phenylene (PPP), polyacetylene (PPV), polyacetylene (PDA), polybenzobenzene (PAS), polythiophene acetylene (PTV), polybutylene (ppb), etc. These conductive polymer materials mainly adopt composite application methods, such as PPy PPA, PTP pan, pan pet and PPy PET composite films. Their properties are greatly improved and their conductivity can reach the level of silver and copper. These conductive polymer materials have good conductivity and stability, and some also have heat resistance, electrochromism, photoelectric conversion characteristics, nonlinear optical characteristics, electromagnetic wave absorption characteristics and catalysis. Therefore, they are widely used in anti-static packaging, electromagnetic shielding packaging, intelligent observation window of packaging, stealth packaging, selective breathable film and so on

the intellectualization of this material broadens the application scope of packaging. The successful development of a material often leads to the improvement of multiple functions of packaging and achieves twice the result with half the effort. However, due to the large R & D investment and long cycle of new intelligent materials, they are often used as long-term research plans

2 characteristics and development of functional and structural intelligent packaging technology

functional and structural intelligent packaging means that the packaging has some special functions and intelligent characteristics by adding or improving some packaging structures. The improvement of functional structure often starts with the safety, reliability and some automatic functions of packaging. This structural change makes the use of packaged goods more safe, convenient and concise

the most representative of this functional and structural intelligent packaging is automatic heating and automatic cooling packaging [6]. These two kinds of packaging increase the partial structure of packaging and make the packaging have partial automatic function. Automatic heating packaging is a multi-layer, seamless container made by injection molding. The inner layer of the container is divided into multiple intervals to allow the product to heat itself. Its heating principle is: when the user takes down the foil on the container and presses the bottom of the container, the water and limestone in the container will produce chemical reaction and release heat energy, so as to heat the product. The automatic cooling package has a condenser, an evaporation grid and a package of desiccant made of salt. During cooling, the steam and liquid generated by catalysis will be stored at the bottom of the package. This technology can also be applied to ordinary containers. It can reduce the temperature of the items in the container to 17 ℃ in a few minutes. These two kinds of intelligent automatic packaging are suitable for field workers, such as adventure, cycling, fishing lovers, etc

by purposefully changing the packaging structure, the safety of packaged goods can also be greatly improved. The safety of packaging is mainly developed for minor children and people with mental retardation and disabilities. This kind of packaging is called child safety packaging (CRP) [2-3]. Children’s safety packaging has more complex structure and higher cost than ordinary packaging, but some data show that this kind of packaging significantly reduces the harm of packaging to children and ensures children’s safety. At present, the main structural features of children’s safety packaging on the market are as follows: 1) press twist cap: This is a composite bottle cap, which is completed by pressing and twisting at the same time. 2) Open the cover: This is also a popular child protective
cover. When in use, the cap shall be aligned with the mark (arrow) on the bottle, and then lift the lug of the cap at the notch of the bottle flange to open the package. 3) Blister packaging: in order to prevent children from opening ordinary blister packaging, it is required to tear the adhesive paper on the back from the corner, or press out the contents from the back (press · thtough package, PTP). 4) Labyrinth cover: This is a packaging form opened by intelligence and skill. 5) Pull out cap: the cap seal is composed of two inward protruding tongues (1 ~ 2mm high and 2 ~ 3mm long) and an inner plug at the lower part of the outer cap. A certain amount of force needs to be added for drawing action to overcome the friction between the inner plug and the bottle mouth. These movements are difficult for children to complete. 6) Single dose drug anti child packaging: This is a single dose drug packaging that can prevent children from taking it by mistake. 7) Bayonet piece child proof bottle is a bayonet type cover, which is simpler than the labyrinth type cover, and its principle is similar to the socket type lamp holder. The environmental protection agency regulations published by the United States in 1981 pay enough attention to the above factors and the structural performance of bottles and closures, and make corresponding provisions: after the initial test, if there are changes in packaging shape, material, capacity, closure material or cover liner, it is necessary to conduct another test to confirm its protection to children’s safety

the change of packaging structure can be used to improve the reliability of packaging and play the role of intelligent anti-counterfeiting [2-3]. This kind of packaging is also called “tamper evident packaging (TEP)”. It is a kind of packaging in which the internal products can be removed only by opening or destroying a display or obstacle. Once the display or obstacle is broken, it provides visual evidence to subsequent consumers that the original product packaging has been disturbed (see the definition of 21cfr211.132 in the Federal Register of the U.S. Food and Drug Administration on November 5, 1982). The most typical structure of this kind of packaging is the destructible cover, formerly known as pilfer proof cap. This metal or plastic cover can provide visible traces of the damage of the seal. It is widely used in the packaging of OTC drugs, beverages, food and so on. At present, there are mainly two forms to destroy the cover. One is open or tear type, and the other is vacuum type. It can also be supplemented with inner sealing materials (see inner sealing of bottle mouth) to achieve the purpose of revealing theft and opening

functional structure intelligent packaging makes the packaging have certain intelligent functions by changing some structures and devices of the packaging. This structural change has the characteristics of low development cost and obvious functional effect, and can be used as the main goal of short-term development

3 characteristics and development of information-based intelligent packaging technology

information-based intelligent packaging technology mainly refers to a new technology that mainly reflects the contents of packaging, its internal quality and the information of transportation and sales process. This technology includes two aspects: first, the information recording and performance of the impact of the surrounding environment on the internal quality of goods during storage, transportation and sales; Second, production and sales information. The technologies that record and reflect this information involve chemical, microbiological, kinetic and electronic technologies. Information intelligent packaging technology is one of the most dynamic and promising packaging technologies

the information-based intelligent packaging technology that reflects the quality of goods mainly uses chemical, microbial and kinetic methods to record the changes in the quality of packaged goods in the life cycle [1]. Generally speaking, the information of commodity deterioration caused by the change of commodity storage environment and packaging internal environment is mostly recorded by chemical and microbial methods, while the information of serious falling and dumping during transportation can be recorded by kinetic calculation and displayed by chemical methods. In terms of recording the changes in the environment inside the package, the intelligent packaging indicator developed by VTT Biotechnology Laboratory in Finland has achieved substantial results. The key significance of this indicator lies in its ability to directly give information about food quality, packaging and reserved space gas, packaging storage conditions and so on. The freshness indicator directly indicates the microbial quality of food through the reaction of new and old generation during microbial growth. It includes: leakage indicator and preservation indicator

the leakage indicator studied by this organization is specially designed for O2 leakage detection of map (modified atmosphere packaging). The indicator is based on oxygen sensitive dyes and is suitable for map food quality control. The agent also contains oxygen absorbing components

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