In the new moon of the past two years, the mask market has grown by leaps and bounds, and the demand of the market has now been different. The next soft pack in the chain length and downstream volume pushes companies to generally pack mask products into the type. It is a very big cake, and it is getting bigger and bigger. For the soft package, the future is full of business needs and challenges for enterprises with unlimited business opportunities. In the face of a favorable market situation, soft packs will continue to improve their production level and product quality in order to gain an important position in the market.
Mask bag features and structure
Nowadays, high-end facial masks have become a trend. In addition to showing excellent performance and texture on aluminum foil packaging bags, they also need a longer shelf life. Most masks have a shelf life of more than 12 months, and some even 36 months. With such a long shelf life, the most basic requirements for packaging are: airtightness and high barrier properties. In view of the consumption characteristics of the mask itself and the requirements of its own shelf life, the material structure and requirements of the mask packaging bag are basically determined.
At present, the main structures of most masks 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 perspective of the main material structure, aluminized film and pure aluminum film are basically used in the packaging structure. Compared with aluminum plating, pure aluminum has a good metallic texture, is silvery white, and has anti-gloss properties; aluminum metal is soft, and products with different composite materials and thicknesses can be customized according to requirements, in line with the pursuit of high-end products for heavy texture, making high-end masks Get a more intuitive reflection from the packaging. Because of this, the basic functional requirements of the mask packaging bag from the beginning to the high-end demand for the simultaneous increase in performance and texture have contributed to the transformation of the mask bag from an aluminum-plated bag to a pure aluminum bag. Compared with the fancy decoration on the surface, the storage and protection functions of the packaging bag are actually more important. But in fact, a lot of people are ignoring this.
From the analysis of the raw materials themselves, the general mask packaging bags are mainly divided into two types: aluminized bags and pure aluminum bags. The aluminized bag is to evenly coat the high-purity metal aluminum on the plastic film under the high temperature vacuum state. Pure aluminum bags are composited with aluminum foil and plastic film, which is the downstream product of the aluminum industry chain, which can improve the barrier properties, sealing properties, fragrance retention, and shielding properties of plastics. In other words, pure aluminum mask bags are more suitable for the current market requirements of mask packaging bags.
Production control points of mask packaging bags
1. Printing
From the current market requirements and consumer perspectives, the mask is basically considered to be medium and high -end products, so the most basic decoration requires different requirements as ordinary food and daily packaging packaging. It is necessary to grasp the consumer's psychological expectations. So for printing, taking PET printing as an example, its printing accuracy and hue requirements will also be higher than other packaging requirements. If the national standard standard is 0.2mm, the secondary position of the mask packaging bag prints basically needs to meet this printing standard to better meet the requirements of customers and consumer needs. In terms of color differences, the customers of mask packaging are more stricter and more detailed than ordinary food companies. Therefore, in the printing link, the enterprises that produce mask packaging should pay special attention to control. Of course, there are higher requirements for printing substrates to meet high requirements for printing.
2. Compound
Three major aspects of composite control: composite wrinkles, composite solvents residues, composite linen points, and abnormal air bubbles. These three aspects are key factor affecting the finished product rate of facial mask packaging bags.
Compound wrinkle
From the above structure, it can be seen that the mask packaging bag mainly involves the composite of pure aluminum. Pure aluminum is extended into a very thin membrane sheet from pure metal. The thickness of the basic use is between 6.5 ~ 7 & mu; Pure aluminum membrane is very easy to produce wrinkles or discounts during the composite process, especially for automatic seasoning composite machines. During the seasoning, due to the irregularity of automatic bonding the paper core, it is easy to be uneven, and it is very easy to be very easy Wiring directly after the aluminum film is compounded, or even wrinkles. In response to wrinkles, on the one hand, we can remedy subsequent remedies to reduce the loss caused by wrinkles. Composite glue stabilizes to a certain state, it is a way to re -roll over Reduce, such as using larger paper cores to make the collection effect more ideal.
Composite solvent residue
Because the mask packaging basically contain aluminum or pure aluminum, for composite, there is an aluminum or pure aluminum, which is not good for the volatilization of the solvent. Deadly to volatilization of solvents. It is clearly stated in the GB/T10004-2008 "Plastic Composite Film, Bags-drying Composite Squeeze Extraction" standard: This standard is not suitable for plastic film and bags made of plastic materials and paper groups or aluminum foil composites. However, the current mask packaging enterprises and most companies are also subject to the national standard. For aluminum foil bags, this standard requires some misleading. Of course, the national standard has no clear requirements. But we still have to control solvent residues in actual production, after all, this is a very critical control point. As far as experience is concerned, it is feasible to effectively improve the selection of glue and the speed of the production machine and the temperature of the oven, as well as the equipment discharge volume. Of course, in this regard, it is necessary to analyze and improve specific equipment and specific environments.
Composite lines, bubbles
This problem is also very related to pure aluminum, especially when the structure of composite PET/Al is more likely to present. Many crystal dots will accumulate on the surface of the composite surface, or the phenomenon of bubble dot. There are several main reasons: substrate materials: the surface of the substrate is not good, and it is easy to produce anesthesia and bubbles; too much crystal point of the substrate PE is also an important reason. Thick particles will also cause similar problems when combining. In terms of machine operation: Insufficient solvent volatilization, insufficient composite pressure, upper glue mesh roller blocking, foreign matter, etc. will also produce similar phenomena.
3, bag making
The control point of the finished process mainly depends on the flatness of the bag and the strength and appearance of the edge. In the finished product process, the flatness and appearance are more difficult to grasp. Because its final technical level is determined by machine operations, equipment and employees' operation habits, bags are very easy to scrape the finished process, and abnormalities such as large and small edges. For a strict mask bag, these are definitely not allowed. In response to this problem, we might as well control the phenomenon of scraping from the most basic 5S aspects. As the most basic workshop environment management, ensure that the machine is clean, ensure that there is no foreign body on the machine, and ensure normal and smooth work. This is a basic production guarantee. It is necessary Go to form a good habit. In terms of appearance, there are generally requirements for the requirements of the edge and the strength of the edge. The application of the lines needs to be thinner, and the flat knife is used to press the edge. In this process, it is also a great test for the operators of the machine.
4. Selection of substrates and auxiliary materials
PE used in the mask needs to choose functional PE materials for anti -dirt, liquid resistance, and acid resistance. From the perspective of consumer use habits, PE materials also need to be easy to tear, and for the appearance requirements of the PE itself, crystal points, crystal points It is its key production control point, otherwise there will be many abnormalities in our compound process. The liquid of the mask basically contains a certain percentage of alcohol or alcohol, so the glue we choose needs to use media resistance.
in conclusion
In general, the mask packaging bag needs to pay attention to many details during the production process, because its requirements are different from ordinary packaging, the loss rate of soft bag companies is often relatively high. Therefore, each of our processes should be very detailed and continuously increase the rate of finished products. Only in this way can the mask packaging enterprise seize the opportunity in market competition and be invincible.
Post time: Oct-14-2022