The most fashionable beer cans

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Refurbished beer cans

tinned beer is light, convenient to transport, carry and open, leading the trend of fashion consumption. It is one of the fast horses of beer packaging (bottled, tinned and barreled)

the manufacturing of domestic aluminum two-piece cans began in 1985, with an investment of US $300million and the introduction of 13 cans production lines, with a production capacity of 11billion aluminum cans. In 2003, there were 2billion cans for tinned beer, an increase of more than 8%, higher than the growth rate of bottled beer of 5%, reflecting the expansion of the domestic high-end beer market

Budweiser and Qingdao are the largest beer brands, with 200million cans and 400million cans respectively. Among them, Budweiser tins are rare in the world and the only corrugated cans in China, showing the uniqueness of the world's largest beer company. Tsingtao Beer took the lead in launching 500ml cans in China. Through packaging innovation, it can better meet the needs of consumers for different capacity specifications

with tinned beer becoming more and more popular with consumers, the domestic can making industry has come out of trouble. Foreign aluminum cans such as ball, crown, Rexam, Pacific, United and Shanghai Baoyi steel cans have jointly carved up the domestic beer metal container market

aluminum cans are mainly used

aluminum materials have good processability and printing adaptability, and are suitable for high-speed and continuous automatic production. Aluminum cans are rust free, corrosion-resistant, light tight, fresh-keeping and flavor preserving. The products are light in weight, safe in transportation and storage, easy to carry and use, and waste cans and old cans can be recycled, which is conducive to environmental protection. Domestic breweries with more than 200000 kiloliters are basically equipped with tinning lines to produce cans of beer. Tinned wine has excellent sealing performance, is clean and hygienic, and can retain the fresh flavor of beer to a great extent within the shelf life of 12 months, so it has attracted more and more young and middle-aged consumers in cities

ten processes are required for aluminum cans to be made into 0.28mm cans from coiled materials: Cup punching, stretching, thinning stretching (three times), cutting, primer, printing, closing and flanging. The technological process is as follows: the cup making machine makes the aluminum sheet into a cup, the stretching machine stretches and thins the cup into a white can, and the washing machine cleans the white can. The coater applies a layer of primer on the surface of the white can. It is convenient to obtain the experimental data of various materials. The external printing machine prints the can body according to the design patterns of different customers, the external printing oven dries the printed pattern of the can body, and the can is internally coated by the internal spraying machine, and the internal drying oven dries and internal spraying, The wax applicator applies wax along the edge of the tank mouth, and the necking machine and flanging machine finally close and flanging. Each finished tank needs to pass the light inspection program. The computer light inspection machine will automatically remove unqualified products, and the qualified cans will finally enter the automatic stacker for packaging. The speed of domestic can factories is above 900cpm

packaging process

the packaging process of tinned beer is simpler and easier to control than bottled and barreled beer. The main equipment of an automatic tinning line is composed of destacker, wine can sealing machine, sterilizer, packing machine/sealing machine, and the filling speed can reach 1000cpm, which is comparable to the tinning factory

the technological process of beer Canning is as follows: the destacker unloads the empty cans of the code layer from the plastic tray, pushes them onto the plastic chain plate, enters the washing machine, rinses them with 80 ℃ hot water, dries them, and achieves sterility. Then, CO2 isobaric filling is adopted, and carbon dioxide is used to replace the air in the tank. After filling, carbon dioxide is sprayed to foam the tank mouth, and the cap is quickly sealed. The automatic quantitative instrument is used to detect the liquid level, followed by pasteurization (spray sterilization). The tins after filling are dried by the air dryer, and then the production time is sprayed on the bottom of the cans by the inkjet printer

according to the packaging form, different packing machines are used: the single die-cutting paperboard is a wrapping type, the earpiece is pressed onto one large side of the paperboard, the mechanical rod lifts the other large side and both sides in turn to wrap, and the hot sol quickly binds the manufacturer's seams and covers. Wrapped type is widely used in domestic breweries and provided by kisters company in Germany. There is also a kind of knock down (the manufacturer's joint is a molded box glued in the carton factory). The suction cup of the packing machine adsorbs the large surface into a hollow, and the mechanical rod is pushed inward into the earpiece, and then bonded. This packing method is highly efficient and widely used abroad. The wrapping packing machine can also pack the thermoplastic film with paper bracket. At this time, the packing machine needs to be equipped with a set of PE film cutting, wrapping system and heat shrinking furnace. If there is printing on the surface of PE film, it is necessary to configure photoelectric eye device. After automatic packing and bonding, OPP sealing tape is generally no longer used in the listening box. The typical 355ml tins are 24 cans, 18 cans and 12 cans, mainly depending on the habit of consumers to buy the whole box

before and after filling

modern beer technology widely uses computer recognition system and digital display instruments to assist in mechanized filling operation, so as to ensure that beer quality is not affected in the filling process. The hearing remover can automatically detect the following manufacturing defects of the cans: oil, liquid, deformation, foreign matter, and odor, and remove the unqualified containers from the line

the inner wall of the earphone is washed with clean brewing water after liquid detection before washing

the air earphone is flushed with CO2, prepared for pressure, and then filled with wine; After the wine filling is over, it will be subject to pressure relief, bubble breaking, and then sealed and capped. The tolerance of 355ml internal volume should be controlled within ± 8ml, and CO2 should be within 2 Between 85, og is 10 0, the average control of TPO is lower than 134ppb. Wine filling and sealing are closely linked, and KHS is the majority of machine suppliers

heuft liquid level detector is used to detect the volume in the ear, automatically take samples, and record the number of filling defects of each wine valve

beer sterilization process is divided into three parts: heating up, 62oc sterilization temperature and cooling down. Improper sterilization affects beer flavor, and the quality indicators that should be controlled are: PU (), MPT (141 ± OC), BOT ≤ 27oc

the liquid level detection after sterilization is controlled by a filtec weight meter, which automatically picks out the tinned wine with insufficient liquid level

printing defects mainly include fuzzy printing, missing printing, wrong printing and unequal printing positions. Vediojet is the main inkjet machine suitable for small character high-definition inkjet

style renovation

for canned applications, foreign countries have developed various forms of packaging. If it can be used in the domestic market, it will consolidate and improve the high-end status of tinned beer, promote sales, protect the environment and consumer safety. The packaging forms with innovative significance mainly include:

◆ can surface embossing: a kind of special-shaped cans, add an embossing machine in the forming process section of the cans, and make the surface of the cans become uneven and personalized by installing different molds. You can also use special ink to print embossed visual effects, but there is no convex and concave feeling when holding the can

◆ temperature change effect: the beer pattern or logo is printed with temperature sensitive ink caused by low temperature, and it starts to display within a certain temperature range, which can not only remind consumers of the best drinking condition, but also play an anti-counterfeiting role

◆ film printing: PE film flexographic printing is adopted and then attached to the white tin. The effect is the same as that of metal printing, but flexographic printing is bright, flexible and environmental friendly

◆ sot environmental protection cover: sot refers to that the pull ring on the hearing cover will be hidden and attached to the cover after the cover is opened, so that the cover can be recycled together with the tank body, and at the same time, consumers can be protected from accidental stabbing by the pull ring

◆ dust prevention on the cover: due to the continuous complaints of consumers about the hygiene of the cover of tinned wine, a dust-proof composite film on the cover is sealed on the tank cover after filling and capping to prevent dust pollution

◆ TPV products produced by aluminum dawn group have sold well in bottle making cans in domestic and foreign markets: aluminum bottles and cans invented in Japan are to make metal containers suitable for glass bottle filling lines. The lower part of the bottle is in the shape of a tin, and the upper part has a bottleneck. For surface printing, a preprint film sleeve is attached to the surface of the bottle

◆ paper cans: the can body is made of paper and aluminum foil, and the can cover is made of plastic with pull rings. Due to pressure resistance, it is not applied to beer packaging at present

◆ combined packaging: various forms of tins combined packaging include hicone plastic tape, shrink film wrapping, die-cutting cardboard wrapping and die-cutting cardboard connector. If the order quantity is large, machine packaging can be used, and if the order quantity is small, manual packaging is more economical

◆ hand holed boxes: hand holed boxes with 12, 18 and 24 cans are provided with hand holes on the side of the carton, which is convenient for consumers to pick up when buying the whole box. In order to enhance the strength of the hand hole, a kind of heat soluble PVC fabric with a surface layer is used, which is bonded in advance on the corrugated board line of the carton factory

food canning trend

according to the news of a technical meeting at the packaging exhibition/food processing machinery exhibition, EZO is at the forefront of this trend. Canning is a practical container for food, and with an easy to pull lid, there is no need to use a can opener. Cost will be a problem, but supporters of easy cover cite research findings that consumers are willing to pay an extra 6 to 8 cents per package

"60% to 65% of European canned foods use easy pull lids, which is 80% in the German market," said Jeff deliberty, marketing manager of Silgan closures in Downers Grove, Illinois, USA. "in the Asian market, EZO penetration is about 60%

but in the U.S. market, the share of easy to pull lids only accounts for 35% of cans. Deliberty predicts that this figure will reach 60% in 2008. He predicts that the key areas of transformation will be pet food, soup/chili/pasta, and fruits and vegetables

while most of the discussion still focuses on the rigid metal pull covers, the new generation of easy pull covers, including peelable foil, some of which can be processed in ultra-high pressure containers. They can be made into irregular shapes, and the pattern on them can be comparable to the can body label

new technologies currently being discussed include:

◆ the "spike" can is vacuum packed and resealable before opening

◆ square cans, well packed and have a good shelf publicity effect

◆ self heating cans can realize small-scale exothermic reaction

◆ spiral top cans

◆ it can be used as a can for heating steel bowls in a microwave oven at the same time

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