What does the row of colored dots on a Yoplait yogurt container stand for?

Question

I have been eating this brand of yogurt for years and have always wondered this.

Answer 1

And during the processing there is an electric eye on the line to make sure lids and packaging has been properly, coded and processed.

As certain product are made in large amounts, and the machines that process, package and date stamp things it is common for the use of coloured dotd or lines to allow them to track things through out the entire run of a porduct, like say strawberry, or bluebery yougarts would have different codes, printing the labels is done outside the factory, these are tracking code dots.

Answer 2

The colored dots are registration marks to help the printer get the color plates lined up in the label printing process.

When a printed sheet is 'in-register', it means that all the plates - Cyan, Magenta, Yellow and Black, in the case of a four color process job - are lining up accurately on the printing press and producing a clearly defined color image.

If a job is out of register, there will be a blurring at the edges of images that are made up of more than one color.