What Aspects Should You Know About Doypack Machine?

When it comes to the doypack machine, you may be unfamiliar with it. But in our daily life, when it comes to the bagged laundry liquid, bagged milk tea and bagged dried fruit snacks, you may know it well.

I guess you already know that they are related with packaging.

Yes, that’s what the doypack machine does.

With the rapid development of the FMCG market, it has also driven the rise of the food packaging industry, especially the rapid development of the doypack machine.

So this article will show you some basic information about the doypack machine.

Before knowing this doypack machine, we should figure out why the machine has become more and more popular in the packaging field.

In general, there are probably two reasons.

We should know that in the food field, soft bag packaging has always been the main packaging form of fluid and semi fluid.

However, in the past two years, customers have paid more and more attention to the portability of packaging, and the liquid food packaging has gradually become flexible, so the doypack has also well catered to the development trend and become a more popular packaging form.

Firslty, with the continuous expansion of the market, the demand of doypack machine for manufacturers has largely increased, so the machine has also been favored by more and more manufacturers.

Secondly, in the field of food packaging, doypack packaging is a relatively new form of packaging.

Compared with glass bottles and aluminum cans, the doypack packaging is way more better with soft material, and easy to carry and use while keeping standing.

Thirdly, a doypack from the doypack machine is made of PET, foil, PET or PE materials with lower cost requirements.

Nowadays, the application of doypack machines in the food field is growing, and is widely applied  in juice, beverages, drinking water, condiments and other industries.

After familiar with the development background of the doypack, we need to fully understand the characteristics of the machine. There is no one will buy a product before knowing any characteristics.

Firstly, the doypack machine adopts a transparent glass plastic cover.

During the production process, sealing and shrinking process are cleared to be displayed.

Secondly, the sealing part of the doypack machine includes glass fiber knife slot and nickel chromium alloy sealing knife with strong viscosity resistance and high temperature resistance. The sealing part is neat, without cracking and coking.

Thirdly, the doypack machine is equipped with a special roller pinhole device, which helps it fully exhaust the air in the film.

Fourthly, the doypack machine has a sliding plastic film bracket, which can cover various types of shrink films, and you can adjust them freely.

Fifthly, the doypack machine can run continuously for a long time without overheating the surrounding environment.

Sixthly, the power consumption of the doypack machine is low, and the average power consumption per hour is only 2.5KW. The temperature resistant material cutter head can withstand the test of long-term use

Seventhly, we can adjust the height of the doypack machine according to the size of the package.

Eighthly, the bottom of the doypack machine is equipped with locking casters, so we can move or display the machine at our will.

Lastly, the doypack machine is equipped with a stainless steel conveying network, that the height can be adjusted at will, and the product can be produced automatically after packaging with high efficiency.

In our daily life, most of the packages of bagged food usually are upright and smooth, which is a very important indicator for testing the packaging effect of the doypack machine, that is, the flatness of the doypack packaging.

Besides the material factor, the flatness of doypack is also related to the heat sealing temperature, heat sealing pressure, heat sealing time, cooling and other factors.

If the heat sealing temperature and sealing pressure of the doypack machine is too high, or the heat sealing time is too long, the composite film will shrink and deform.

Insufficient cooling of the doypack machine will result in insufficient shaping after heat sealing, with no internal force to support, and the bag will wrinkle, so you need to adjust the process parameters and ensure that the cooling water circulating system is in normal working condition.

The second important index to distinguish the packaging quality of the doypack machine is the symmetry of the packaging bag.

Symmetry not only affects the appearance of the doypack, but also affects its sealing performance.

The common asymmetry of the doypack machine is often reflected in the bottom material.

Due to the improper control of the bottom material tension and the unmatched tension with the main material, the bottom hole will deform or wrinkle and the heat sealing strength will be reduced.

When the round hole of the bottom material from the doypack machine is deformed, you need to reduce the discharge tension appropriately, and extend the waiting time for correction during heat sealing, so that all the intersection parts of the four layers at the bottom of the bag are well heat-sealed.

In addition, the bag type asymmetry is also related to the photoelectric tracking, feeding, cursor design, rubber roller balance, synchronization of stepping motor or servo motor and other factors of the doypack machine.

This problem needs to be solved according to the specific operation of different products and different bag making equipment.

Nowadays, the application of doypack machines in the food field is growing, and doypack is widely applied in juice, beverages, drinking water, condiments and other industries.

According to the survey, in recent years, more than billions of doypack have entered the food packaging market.

With a growth rate of about 7%, it is predicted that, driven by market demand and low-cost advantages, the market size of doypack machine will grow bigger in the next few years.