Calculating ink coverage based on weight

Ed asks,

“We are creating a program to quote customer requirements as quickly and accurately as possible but we are stuck with ink / printing issues.

Is there a conversion that may help us translate grams of ink to square centimeters / inches of printing?”

Your ink supplier should be able to tell you how many sq. in. or sq. cm. a pound or gram of ink will cover. This will change depending on the viscosity, substrate, anilox roll volume, ink manufacturer and ink type. So in your calculator (estimator) you may want to provide the option to select from a pre-programmed list of inks, or allow the estimator to enter a pounds per inch or grams per centimeter variable.

Then of course you’ll need to know the sq inches of coverage for each color. You could simply calculate the area of the sheet and then assign a light, medium, or heavy coverage variable to simplify the calculation of inches of coverage.

– Ralph

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