About two months ago my client put in an order for copies of her color swatch book. It was the first time the current commercial printing shop had done the job. To be safe, we had asked the printer to produce a complete, untrimmed set of all colors used in the 22 master print books as a test. Each swatch had the CMYK percentages noted below the solid color as well as my client’s proprietary name for the hue.
To determine if there would be a perceptible color shift once the sheets had been laminated in the final press run, we had the custom printing vendor produce one set of laminated, untrimmed swatches (as many as would fit on an approximately 12” x 18” press sheet) and one set of unlaminated swatch pages. I had seen in prior iterations of this job produced by another printer that some of the colors in the blue range had shifted slightly. I wanted to make sure that if there were color problems, they could be definitively attributed to either the custom printing or the lamination.
So we thought we were ready to go, once my client and her business partners had approved the test sheets. We also thought this would be a good way to ensure consistent color if we should ever need to change commercial printing vendors. After all, the prior printer had gone out of business just after one of my client’s reprints: hence the need to move the job.
Read more at https://www.printindustry.com/blog/2018/08/book-printing-what-do-you-do-in-an-emergency/