Thinking about the advantages of plastic packaging

2022-05-25
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Thoughts on the advantages of plastic packaging of dairy products

with the rapid sales of dairy products, the share of plastic bottle packaging is also growing. The continuous use of HDPE or PET bottles in flavored milk, mixed fruit milk and health drinks shows the recognition of plastic bottle packaging in the dairy packaging market. Pet occupies a certain dairy packaging market because of its glass like absolute transparency and high gloss, which makes the packaging more attractive, more brand value and different

packaging requirements of dairy products

generally speaking, different dairy drinks have very different requirements for the pretreatment, outer packaging and filling technology of their products. The table in Figure 2 shows the effect of pretreatment and filling technology on the shelf life of dairy drinks

under the condition of cold chain, the standard shelf life of 10 days can be reached by using clean filling technology (or ESL milk and fermented milk with a shelf life of 21 days, such as buttermilk, yogurt and health drinks). The requirements for the protection function of milk beverage packaging in its distribution, storage and sales decrease with the decrease of temperature. The protection function mainly refers to the shelf life and pre-treatment requirements for the stability of milk beverage

aseptic filling technology suitable for non cold chain low yogurt products

UHT dairy drinks are stored and sold at room temperature, which is much more complicated. At this time, the requirements for the protection and filling technology of low acid products are extremely harsh, because under low acid conditions, bacteria and microorganisms are easy to survive and grow at room temperature

for the filling of this product, sigasbofill of SIG Beverage Machinery Division launched ABF series aseptic filling and cleaning and drying system. The aseptic technology used in the system is to use atomized hydrogen peroxide spraying technology to sterilize the packaging. The equipment integrates bottle sterilization, aseptic filling and aseptic capping or aluminum foil capping, and the maximum filling output is 12000 bottles/hour

The filling system of UHT milk has been widely used in the commercial area where UHT milk has a low flavor, such as the junction of UHT milk and pan pearl milk. An important advantage of sigasbofillabf system is that the sterile area is very small, which makes the control and maintenance of sterile area simple and safe. During the production and operation of the equipment, the bottle body is transported outside the sterile area, and only the bottle mouth is placed in the sterile area for aseptic filling. The sterilization process is to spray a mixture of atomized hydrogen peroxide and sterile air in a certain proportion in the bottle and keep it in the bottle for a certain time for oxidation; Then, the sterilization effect in the bottle is achieved through the oxidation of hydrogen peroxide. At this time, the microorganisms in the bottle are removed. Finally, the atomized hydrogen peroxide residue in the bottle is brought out of the bottle through sterile hot air. In addition, according to the adjustment and transformation of different process parameters, such as temperature, hydrogen peroxide dose and disinfection cycle, the sterilization attenuation rate of the equipment can be increased from log4 to log6

how to solve the problem of avoiding light in PET bottles of dairy products

for ESL milk and UHT milk, the barrier of light is very key. If there is no barrier to light and the product is stored in a bright supermarket freezer, milk will lose about half of its vitamin B2 nutrients in the first 12 hours. In addition, the light will also destroy the protein components in the milk, and make the milk produce a metal taste within 2 ~ 4 hours after the chemical reaction, that is, the so-called light damaged taste

for PET bottled dairy products, avoiding light is particularly important. In addition to the labeling of packaging bottles, there is also a more direct and effective lightproof packaging solution. Sig koberras found that there are many ways to improve the light barrier performance of PET packaging. Common methods include: increasing the content of titanium dioxide in PET resin and using white + Black + white multi-layer PET bottle packaging

The low transmission rate shown by

shows that the UHT milk packaged above can fully block the effect of light within its predetermined shelf life and extend its shelf life to 4 months. However, because the comprehensive cost of this scheme is higher than that of the current traditional multi-layer carton packaging (such as sig kangmeibao sterile carton packaging), only high-grade and high-priced dairy products can adopt it as their brand image

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