Flexographic water-based ink printing on paper bowls
Date: Nov 24 2023 From: Star Color
As a common catering container, paper bowls have a huge market demand, including the catering market, social activities market, food packaging market and family life market.With the continuous improvement of consumers' demand for health, convenience and environmental protection, the market demand for paper bowls as an environmentally friendly and convenient catering containers will continue to grow.
Usually, some patterns will be printed outside the paper bowl, such as the manufacturer's logo, publicity information, or other design patterns, how to judge the printing ink outside the paper bowl is printed with safe and environmentally friendly ink？
Observe the printing effect:The paper bowl printed with water-based ink has a clear, bright and colorful printing effect.The paper bowl printed with inferior ink may have problems such as blurring and uneven color.
Smell the smell:Paper bowls printed with water-based ink do not contain volatile organic compounds, so there is no pungent odor.Paper bowls printed with traditional ink may emit pungent chemical odors.
Inspection identification:Some water-based ink printed paper bowls will be marked on the packaging "use food-grade water-based ink", or at the bottom of the paper bowl marked "environmental protection" and other words, can be judged by these signs.
Of course, the above is only a preliminary view, and can not be 100% identified, and the real safety and environmental protection, in line with food grade paper bowls are generally printed with flexographic water-based ink.
Flexographic water-based ink is an environmentally friendly printing material, which is often used to print paper packaging materials, labels, paper bags, posters and other products.However, whether it is suitable for printing paper bowls needs to consider many factors.
First of all, the printing paper bowl needs to use food-grade ink, which is because the ink will come into contact with food, and if the ink contains harmful ingredients, it will have an impact on human health.Therefore, flexographic water-based inks need to be selected to ensure that they meet food safety standards, such as the European Union Framework regulations and the United States FDA standards.
Secondly, the printing paper bowl also needs to consider its high temperature resistance.Paper bowls are usually used to load hot drinks, hot soup and other foods, so the ink needs to be resistant to high temperatures to avoid transfer during heating.When choosing flexographic water-based ink, you need to check its product manual to understand its high temperature resistance and the corresponding heating conditions.
In addition, because the paper bowl is easy to be soaked in liquid, it is necessary to choose water and grease resistant inks.This can ensure that the ink will not fall off, shift and other phenomena when in contact with the liquid, affecting the quality of the print.
It should be noted that even if flexographic water-based ink meets the above standards, it does not mean that it can be directly used for printing paper bowls.During the printing process, other materials such as auxiliaries may be used, and the safety of these materials also needs to be evaluated.Therefore, while selecting the ink, it is also necessary to consider the safety of the materials involved in the entire printing process.
Flexographic water-based inks also need to meet the following specific requirements in order to get the best results when printing paper bowls:
Strong adaptability:Flexographic water-based inks must be able to adapt to a variety of paper materials and work well in different printing machines and printing conditions.
Easy to process:Flexographic water-based inks need to have good fluidity and wettability in order to distribute quickly and evenly on the plate during the printing process and to dry easily after printing.
Good color and gloss:Printing paper bowls usually need to have bright, long-lasting colors and a good gloss, flexographic water-based inks need to be able to achieve these effects on paper bowls.
Good stability：Flexographic water-based inks need to have stable properties so that there is no change in quality or degradation during long-term storage or use.
RU
EN
CN
