In recent two years, business has developed rapidly, and the packaging market change rapidly. The development of mask packaging market is singing all the way, and now there is a huge demand for packaging. Under the joint promotion of upstream and downstream industries, soft pack enterprises gradually focus on the category of mask.

Mask market is a very big cake. Because people's demand for quality of life is getting higher and higher, this cake is also getting bigger and bigger. For soft package enterprises, the future is full of boundless opportunities and challenges. In the face of a good market situation, soft package enterprises need to constantly improve their production level and product quality in order to occupy an important territory in the market. Today, Xiaobian shares with you the key points of the production process of mask packaging bags.

First, the characteristics and structure of facial mask bag.
Today, the high-end mask has become a trend. In addition to showing excellent performance and texture, the aluminum foil packaging bag needs a longer shelf life. Most of the mask's shelf life will exceed 12 months, and some even 36 months. Such a long shelf life, the most basic requirements for packaging are: sealing, high barrier, anti oxygen.
In view of the consumption characteristics of the mask itself and the requirements of its shelf life, the material structure and requirements of the mask packaging bag are basically determined.
At present, most of the mask structures are PET/AL/PE, PET/AL/PET/PE, PET/VMPET/PE, BOPP/VMPET/PE, BOPP/AL/PE, MAT-OPP/VMPET/PE, MAT-OPP/AL/PE, etc.
From the main material structure, aluminum coating and pure aluminum film will be used in the packaging structure.
Compared with aluminum plating, pure aluminum has good metallic quality, silver white and reflective properties; aluminum metal is soft, and can be customized to make different composite materials and thickness products, in line with the pursuit of high-end products for heavy and heavy quality, so that high-end mask can be more intuitive from the packaging.
Because of this, the mask packaging bag has changed from the beginning of the basic functional requirements to the high-end demand of performance and texture synchronously, which has facilitated the transformation of the mask bag from the aluminized bag to the pure aluminum bag.
Compared with the decorative function of the surface, the storage and protection function of the packaging bag is actually more important. But in fact, many people ignore this point.
From the analysis of raw material itself, the general mask packaging bags are mainly divided into two kinds: aluminized bags and pure aluminum bags. Aluminum bag is a high-temperature vacuum state, the high-purity metal aluminum evenly coated on the plastic film. Pure aluminum bags are compounded with aluminum foil and plastic film, which is the downstream product of aluminum industry chain, which can improve the barrier, sealing, fragrance retention and shielding properties of plastics. That is to say, the pure aluminum facial mask bag is more suitable for the market demand of the current mask packaging bags.
Two. Production control points of mask packaging bags
1. Printing
From the perspective of market demand and consumers, the mask is basically regarded as a high-end product, and it is a product that lets the color value rise. So the basic decoration requirements are different from those of ordinary food and cosmetic packaging. Then for printing, taking pet printing as an example, the overprint accuracy and hue requirements of pet printing are higher than other packaging requirements. If the national standard is the main overprint accuracy of 0.2mm, then the secondary position of the film packaging bag printing basically needs to meet this printing standard, in order to better adapt to the needs of customers and consumers' needs.
In terms of chromatic aberration, the customers of mask packaging are also stricter and more refined than the general food enterprises.
Therefore, in the printing process, for the overprint and hue, the production of mask packaging enterprises should pay special attention to control. Of course, the printing substrate also has higher requirements to meet the high requirements of printing standards.
2. Compound
There are three main aspects of compound control: Compound wrinkle, compound solvent residue, compound pitting and bubble abnormal. These three aspects are the key factors that affect the yield of mask packaging bags.
Complex wrinkling
From the above structure, we can see that the mask packaging bag mainly relates to the pure aluminum compound. Pure aluminum is rolled from pure metal into very thin film-like sheet, the basic thickness used is between 6.5-7 μ m, of course, there are some thicker ones.
The pure aluminum film is very easy to wrinkle or break in the process of laminating, especially for the automatic splicing machine, because of the irregularity of automatic bonding paper core, it is very easy to make aluminum film directly wrinkled or even dead wrinkle.
For wrinkle material, on the one hand, we can make follow-up remedy to reduce the loss of wrinkle material. When the composite glue is stable to a certain state, rewinding can be regarded as a method, but it is only a way to reduce it; on the other hand, it can be reduced from the root, such as using a larger paper core to make the winding effect more ideal.
Residual compound solvents
Because the mask packaging basically contains aluminum or pure aluminum, for the composite, aluminum or pure aluminum exists, which is unfavorable for the volatilization of the solvent. This is because the barrier property of the two is stronger than other common materials, so it is unfavorable for the volatilization of the solvent.
It is clearly stated in GB / t10004-2008 "plastic composite film and bag for packaging dry compound extrusion lamination": this standard is not applicable to plastic film and bag made of plastic material and paper base or aluminum foil. But at present, the mask packaging enterprises and most enterprises also take the national standard as the criterion. For aluminum foil bags, it is also required by this standard, which leads to some misleading. Of course, the national standard has no clear requirements. But we still need to control the solvent residue in the actual production, after all, this is a very critical control point.
In terms of experience, it is feasible to effectively improve the selection of glue, the speed of production machine, the temperature of oven, and the exhaust air volume of equipment. Of course, this aspect needs to be analyzed and improved in terms of specific equipment and specific environment.
Complex pockmarks and bubbles
This problem also has a lot to do with pure aluminum, especially when the structure of composite PET / Al is more easily presented. A lot of "Crystal Point" or similar "bubble" phenomenon will be accumulated on the composite surface. The main reasons are as follows
Substrate: substrate surface treatment is not good, easy to produce pockmarks and bubbles; base material PE crystal point is too much and too large is also an important reason, as well as the leveling of glue, ink particles are coarse, will also produce similar problems in the combination.
Machine operation: solvent volatilization is not enough, composite pressure is not big enough, glue wire roller jam, foreign matter and so on will also produce similar phenomenon.
3. Bag making
The control point of the finished product process mainly depends on the flatness of the bag and the strength and appearance of the edge sealing.
In the process of bag making, flatness and appearance are difficult to grasp. Because the final technical level is determined by the machine operation, equipment and the operating habits of the staff, the bag is very easy to scratch in the finished product process, and there are some abnormalities such as large and small sides.
For those demanding mask bags, these are definitely not allowed. In view of this problem, we may as well from the most basic 5S to manage the machine, to control the scratch phenomenon.
As the most basic workshop environment management, to ensure that the machine is clean and tidy, to ensure that there is no foreign matter on the machine, to ensure normal and smooth work, this is a basic production guarantee, to be specific to the most basic and specific operation of the machine to form good habits.
Appearance, for the edge of the requirements and edge strength will generally have requirements. The application lines need to be finer, and the edge sealing can be pressed with a smoother sealing knife. In this process, for the machine operator, is also a great test.
4. Selection of base materials and auxiliary materials
The PE used in the mask requires the selection of functional PE materials which are anti fouling, liquid resistant and acid resistant. From the aspect of consumers' usage habits, PE materials still need to be easy to tear, and for the appearance requirements of PE itself, crystal dots are the key production control points, otherwise there will be many anomalies in our recombination process.
The liquid of the mask basically contains a certain proportion of alcohol or alcohol substances, so the glue we choose should use the glue that is resistant to the medium.
3、 Conclusion
Generally speaking, mask packaging bags need to pay attention to many details in the production process, because the requirements are different from ordinary packaging, and the attrition rate of soft bags enterprises is often relatively high. Therefore, we must be very meticulous in every process operation, and constantly improve the yield. In an invincible position, the packaging enterprises can seize the opportunity and win the market in the market competition.
Our Dongguan Beite packaging materials Co., Ltd. adheres to the business philosophy of sincere cooperation, excellent quality and considerate service, which is recognized by the industry, and its products are sold all over the world. We welcome friends from all walks of life to inquire, visit our factory for investigation and guidance and business negotiation.
For more information, please visit Beite's official website http://www.dgbpk.com