The reason why plastic packaging bags are usually printed in only 12 colors is mainly related to the following factors:
1. Limitation of printing technology
Currently common flexographic printing or gravure printing technology usually supports up to 12 colors. Although these technologies can create more shades by superimposing and mixing different colors, the number of colors used directly is usually limited to 12. This limitation helps ensure the consistency of printing quality and the clarity of the image.
2. Cost control
The more colors printed, the higher the printing cost. For each additional color, an additional printing plate is required, resulting in an increase in plate making and production costs. Therefore, printing in 12 colors can keep production costs within a reasonable range while ensuring the design effect.
3. Efficiency and time
Using more colors for printing not only increases costs, but also prolongs production time. For plastic packaging bags produced in large quantities, keeping 12 colors can speed up the production process, improve efficiency, and ensure timely delivery.
4. Color management and color matching
When designing packaging bags, a limited number of colors are usually used to ensure that the design is simple and clear while maintaining the contrast between colors. 12 colors are sufficient to meet the printing needs of most brand logos, product information and patterns without making the design too complicated or confusing.
5. Environmental protection and sustainability
Using a limited number of colors helps reduce the demand for ink. The production, use and disposal of inks have a certain impact on the environment, especially if the ink contains volatile organic compounds (VOCs) or other hazardous substances. Therefore, controlling the number of printed colors not only helps to reduce the consumption of chemicals in the printing process, but also reduces the generation of waste and promotes a more environmentally friendly production method.
6. Visual consistency and brand image
Brands often want to convey a consistent visual image through packaging design. The standardized design of 12 colors helps to ensure that different batches of packaging bags remain visually unified and avoid deviations in brand image due to excessive color changes. By limiting the number of colors, brands can better control the reproduction of colors under various printing conditions and improve the consistency of packaging.
7. Predictable production quality
The more colors there are, the higher the possibility of color deviation during printing, especially in large-scale production. Controlling within 12 colors can reduce technical problems such as color misalignment and printing ghosting, ensuring the quality and appearance of each packaging bag is consistent. This is also a quality assurance for customers, reducing unnecessary rework and waste.
8. International standards and industry practices
Some international markets and industries have specific standards or practices for packaging printing. For example, some plastic packaging bags need to meet specific environmental standards or printing specifications in international logistics, and 12-color printing has become the standard in many industries. Compliance with these regulations can help companies enter the global market smoothly and reduce compliance barriers when exporting.
Plastic packaging bags are usually printed in only 12 colors, not only for technical and cost considerations, but more for comprehensive decisions made from environmental protection, brand image, production quality and consumer experience. This approach strikes a balance between business and environmental protection, bringing more advantages to companies and customers.
