How do I Match color from my coreldraw file on cmyk printed sheet with a two colour offset machine.

My clients order want some specific colours. There jobs are cmyk.I have two colour machine. When we print we cannot see the final colours. How do I ensure that final result will match with coreldraw colours.

 

You have to run the job in two passes, and you need a skilled press operator. There are different theories on which order to run the colors, for example, someone might say to run K/Y first then C/M. Either way, it is possible. I used to work at a print shop that did this quite often. Read through the comments at this post for some additional input. You're not going to get as great of a result as you would running on a 4-color press. However, you can use a densitometer to measure your color throughout the run to get the most accurate results.

 

Not sure if such a thing still exists but there was once a product made by 3M called "Color Key" Color Key was made in pre press where each of the 4 colors were separated into their own sheet of a clear acetate. You then would overlay and register one sheet of acetate over another sheet, to arrive at a "progressive" viewing of a 4/c process job. These sheets of acetate were best overlayed onto the exact sheet of paper that the job would print on. There were even provisions that could be made for dot gain so that the simulation was reasonably accurate. Far better results that the Hail Mary method of just waiting and seeing what youve got after the final pass. I would suggest making some inquiries with the company that sells you your pre press supplies as even if 3M no longer makes it another company may have kept it alive.