1. Aluminum-plastic flexible packaging, aluminum-paper flexible packaging: due to opacity, it can be considered according to conventional colors.
2. Single-layer polyethylene packaging: Since it is transparent, you can consider using the color of the content as the complementary color for printing. The color of the content can be used as the pattern background or as the embellishment color (window color). It depends.
3. The color of liquid items can be used for the background color of flexible packaging, such as milk, soy milk, juice, etc.
4. The color of solid small particles can also be used for the background color of flexible packaging, such as coffee, monosodium glutamate, etc.
5. The color of solid large particles is not good for the background color of flexible packaging. For example, if it has been dried, it is recommended to leave a transparent window on the packaging, or a full-sided opaque printing on one side, and only the explanatory text on the back Make the contents transparent and visible.
6. The bar code must have a contrasting background color, and the content should not be used as the background, so as not to be read by the reader.
7. There is no hard-and-fast rule for the text, as long as the food contact surface is not printed, and the artistic text is the space for the design to play.
8. As much as possible, using more colors will look more realistic, but the cost will go up. Generally, four sets of films are produced, that is, four colors. To print realistically, seven sets of films are made, that is, using seven colors Printing, of course, is based on the premise that production costs can be afforded.
9. The color of the text is not listed separately, and it is attributed to the draft in other patterns.
10. The size of the text: The name of the product can be larger, but it still depends on the size of the packaging bag.
11. The description text can be smaller, but not less than 2.5mm, otherwise it will not be visible.
12. All the text should have a contrast with the background color so that it can be read clearly.
13. There are no hard-and-fast rules for issues such as whiteness, and they also belong to the category of design creativity.