The hottest intelligent packaging leads the soft p

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Smart packaging leads the soft packaging industry

our definition of smart packaging is that the packaging itself can complete some previously manual work, such as marking the date, determining the location of goods in the supply chain, displaying the status of perishable goods in the negotiation between the packaging parties, and even adjusting its own permeability to provide a better storage environment for goods

in the past, we always measured whether the packaging expired by the shelf life on the packaging. Now smart bags can automatically display the expiration time. The color changing ink on the label can remind users that the food in the microwave oven has been heated. The diaphragm in some packages can adjust the ratio of oxygen and carbon dioxide in the package with the change of temperature, so as to prolong the storage time of fresh products

and all this is just the beginning

smart boom

now, everyone is talking about smart tags, and almost everyone is dealing with smart tags. The directive issued by the U.S. Department of defense on requiring all suppliers to affix smart labels on cargo packaging and palletizing will take effect this year. This forces all packers to make every effort to develop and adopt various forms of smart label systems

however, in order to cope with the upcoming or possible situation, many companies focus on implementation rather than research and development. Many manufacturers of labels, coding and code reading systems and automatic printing and labeling machines claim that the utilization rate of smart labels has reached 90%. Other industry experts said that the figure was only about 30%. According to the survey of Freedonia group, the demand for intelligent labels in the U.S. market will reach 460million US dollars in 2007, with an annual growth rate of 14%. So far, the most profitable part comes from smart tags

technology, materials and equipment will always develop and progress. Labels are the focus of the industry today, and film is the market core of tomorrow. Today, labels are used to track the flow of goods in the whole supply chain. Tomorrow, labels will have the function of carrying and transmitting data, which will not only affect the service life of packaging, but also penetrate into everyone's life

application problems

fragile chips and antennas are the biggest problems in using smart tags. Any damage to it will make the label unusable. The assembly, printing and use of labels may cause damage. The damage is not only physical, but also the release of static electricity will destroy the data on the chip and make it unrecognizable. This is why all automatic printing and labeling will include a confirmation step to eliminate all labels that lose function after printing and ensure the successful completion of subsequent coding

in order to overcome this difficulty, suppliers have come up with the following countermeasures. Avery Dennison printer systems has developed a label printer for this purpose, which is used to print labels embedded with intelligent chips, program the chips in the labels and print variable data through thermal rotation technology. The "jump bump" technology is adopted in the label printing machine, which can automatically lift and lower the printing head, and solves the problem that the chip may be damaged in the previous label printing

appleton uses a new smartstrate label and specially designs a pocket for the chip, which not only ensures that the label has a smooth surface when printed, but also resists certain physical impact. The special coating adopted by smartstrate label can also effectively eliminate static electricity

Precisia, as a branch of flint ink, solves the problem by coating metal ink on the tag antenna to strengthen its flexibility and facilitate later printing. But the problem of chips still exists

today, labels using intelligent technology are widely used in hard packaging, such as packaging boxes and pallets, because these packages are relatively stable during transportation. The soft packaging factory is trying to transfer this technology to packaging bags, shrink sleeve labels and other forms of soft packaging, but the result is difficult to predict

chemical innovation

the upgrading solution of zhiji'nan testing machine can label is the most popular technology today. Its advantages in transportation, inventory management and recall efficiency have great appeal to the majority of packers. However, for soft packaging factories, the benefits of chemical innovation are more practical. The following two examples are innovative chemicals currently used for commercial purposes

apio company, a subsidiary of landec, developed intelmer liner, which can keep agricultural products fresh during cargo transportation and replace ice cubes that must be used previously. Intelmer liner technology uses a pressure-sensitive diaphragm to change the internal environment of the package by automatically adjusting the oxygen/carbon dioxide balance in the sealed carton. This breathable film is coated with side chain recrystallized polymer on one side. As the temperature changes, the film will also adjust the gas density. When the temperature rises, the vegetables need to breathe more, and the film will release more oxygen and carbon dioxide. This technology effectively extends the shelf life of vegetables with high respiratory rate, such as broccoli, up to 17 days. Not long ago, this technology was adopted by Chiquita brands international to extend the shelf life of bananas

bioett ab of Sweden has developed a TTB Technology (time temperature biosensor), which can monitor the packaging conditions of perishable products in the supply chain. Its core technology is the tag of biosensor, which has a passive radio frequency circuit. Biosensors respond to changes in temperature and time and increase the strength of the signal. Through the portable scanner, the signal can be saved and selected, and the change of temperature can be displayed in graphic form to help the operator control on the computer. This technology has low cost and is an effective way to manage the quality of products after leaving the factory

using special chemical materials is a way of intelligent packaging. For example, thermochromic inks can only be colored under certain temperature conditions. Manufacturers can use this ink to revise the material testing machine with some information that consumers must know under certain temperature conditions; Correction method of tension machine; Revision method of tensile testing machine. For example, sugar maple juice is heated in the microwave oven. After reaching a certain temperature, the word "hot" will be displayed on the package, so that consumers can understand it at a glance. In addition, there is also an ink that can be displayed when the temperature is too low, which can prevent the product from freezing

these smart packages not only benefit consumers, but also benefit the whole supply chain from warehouses to store shelves. Packaging with special ink can always remind staff whether the temperature of the cold chain is appropriate. The cost of ink is not high, but it can help improve the efficiency of the quality control system, especially for temperature sensitive food

time temperature indicator (TTI) is a sensory mechanism based on the principle of chemical reaction, including polymerization, enzyme reaction, diffusion, melting point, etc. Just like the fruit will change color when it is ripe, and then rot, giving off an unpleasant smell, the deterioration of food can also be reflected in the change of packaging color by using the principle of chemical reaction. In other words, the package can automatically display its shelf life from 12. The software reserves the database interface. In France, this technology has been put into commercial application, with more than 140 products using this technology

using the sensory mechanism, it can also monitor the oxygen content in the package and the air tightness of the package. The chemical sensor is placed next to the product in the package and uses ultraviolet light to display a certain color after packaging. The chemical change of the product in the package will change the originally set color

Canadian toxin alert company has developed another application method of color. The company coated a layer of special antibodies against some pathogens on the food packaging film. These antibodies also have some staining components, which can tell consumers whether there are pathogens in the packaging

there is also a polymer, which combines two layers of porous films. One layer is coated with a layer of functional polymer, which expands when it meets acid, and the other layer expands when it meets alkali. Once the pH value of the product in the package changes, the film will expand or contract accordingly, and the pump is used to adjust the pH value

looking forward to the future

some smart flexible packaging can't be commercialized instantly, but they are gradually approaching this goal. Like any other kind of progress, although the pace is small, it continues to explore between efficiency and cost, and constantly improves in failure

some of these new inventions seem too fanciful and are more suitable for laboratories than for production. However, when the molding/filling/sealing machine was launched, such doubts were also overwhelming. Now, it has swept the packaging market and become an indispensable helper for packaging users

at present, the application of intelligent label technology is still in its infancy. Some manufacturers even stick labels on cartons before goods are loaded on board, which can not give full play to the advantages of intelligent packaging. It is obvious that it tracks the value of goods in the supply chain, especially for downstream packaging production lines. Make full use of smart tags to track goods and record inventory information, and collect the operation of the packaging line, upstream packing, etc

this is true of all innovations in smart packaging. On the surface, smart packaging benefits dealers, retailers and consumers. In fact, smart packaging benefits everyone who uses it. Market research shows that consumers also like convenient, safe and self-protective packaging, because these intelligent packaging can better protect the goods they choose

source: Global flexible packaging industry

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