1, aluminum - plastic flexible packaging, aluminum - paper flexible packaging: due to opaque, you can follow the conventional color to consider.

2, single-layer polyethylene packaging: because it is transparent, you can consider the color of the contents of the printing as a complementary color, the contents of the color can be used as a pattern background, or as a dotted color (window color) can, as long as your design style Depending on.

3, the color of liquid items can be used for soft packaging background color, such as milk, soy milk, fruit juice and so on.

4, the color of solid small particles can also be used for soft packaging background color, such as coffee, monosodium glutamate and so on.

5, solid large particles of the color of the goods is not good for the background color of the flexible packaging, such as dried candied fruit, this package is recommended in the packaging on the transparent window, or single-sided printing full version of opaque color, the back only printed instructions text, Make the content transparent.

6, bar code must have a contrast background, can not use the content as a background, so as not to read the reader can not read.

7, the text is actually no tough rules, as long as the contact with the food does not print the surface can be printed, the art of art is designed to play the space.

8, as much as possible, with the color will appear more realistic, but the cost to go up, and generally the lowest four sets of film, that is, four-color, in order to print realistic, it is best out of seven sets of film plate, That is, with seven-color printing, of course, the premise is that the cost of production can bear the case.

9, the text of the color is not listed separately, attributed to other patterns together in the draft.

10, the size of the text: the name can be larger, but still depends on the size of the bag, you can also art processing, that is, to do some text deformation and the like.

11, the text can be smaller, but the minimum can not be less than 2.5mm, or invisible.

12, all the text should be contrast with the background color, so that can be clearly readable.

13, exposed white and other issues are not tough requirements, but also belong to the scope of design creativity.