With the development of the market economy, the markets of various industries have developed rapidly, which has stimulated the emergence of counterfeit and shoddy products, and more and more products have become counterfeit. Companies have introduced anti-counterfeiting labels
to protect their products. Many anti-counterfeiting companies start with a printing volume of 100,000, so they will be endlessly useful. Due to unfamiliar storage characteristics, especially in summer, self-adhesive labels may have problems with curling and printing. Let's understand the reasons for these problems.
In fact, most of the self-adhesive materials are relatively adaptable in high temperature environments (except for hot melt adhesives), but in a high temperature and high humidity environment, almost all self-adhesive materials In the process of processing and use, more or less problems will occur.
Expansion coefficient problem:
Adhesive; Sandwich structure in high temperature and high humidity environment, the expansion coefficient is greater than any single-layer structure of paper or film.
The dry slurry is stored in the production unit of the dry slurry, or when the ambient temperature and humidity of the dry slurry is relatively high, the dry slurry is actually in an expanded state due to the influence of high temperature and humidity.
In this case, the thickness, length, and volume of the tape are relatively large. The slitting is controlled according to the normal tension, so that the winding tension of the non-dry rubber material becomes appropriate or standard under the current environment.
However, after the temperature and humidity control of the adhesive material collected by the processing department is stored for a period of time, the temperature and humidity of the storage environment will no longer affect the material of the dry glue. Therefore, the thickness of the adhesive material in the standard temperature and humidity environment , Length and volume are reduced compared to all predecessors. (The larger the diameter of the material roll, the more stacking, the softer the quality of the material, and the more serious the expansion and contraction coefficients).
The tightness of the reel at this time is not the standard tightness originally set. It occurs during printing on the table; the looseness of the roll is not uncommon.
The storage and division environment of dry slurry suppliers and the storage and processing environment of dry slurry processing enterprises require effective temperature and humidity control methods. In the hot summer, we must pay more attention to control the temperature and humidity of the environment.
Material—fractionation—transport—storage—printing and processing, pay attention to the temperature and humidity control of the entire supply chain. Try to reduce the temperature and humidity difference in each link, for example, try to avoid the period of high daytime temperature in summer when transporting, and transport as soon as possible. Each column is to try to find a way to control the temperature and humidity in summer: 23±1℃, within the range of 60±5%.
In the warehouse where the dry slurry is stored in the printing processing unit, the dry slurry will continue to be stored in a high-temperature and high-humidity environment without temperature and humidity control. The further expansion of the expansion coefficient increases the squeezing between the face paper, paste and bottom paper. As a result, depending on the shape of the paste and table paper, the flatness of the tissue paper deteriorates, and the printing is stained with flowers.
The above content is the reason why the self-adhesive anti-counterfeiting label rolls loose and prints as we know it today. Product companies can also express their own needs when choosing anti-counterfeiting labels, and anti-counterfeiting companies will also design according to customer needs and so on. Customized anti-counterfeiting labels, to learn more about anti-counterfeiting, welcome to consult: 400-998-0111. Shangyuan Anti-counterfeiting is at your service!
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