PAPERmaking! FROM THE PUBLISHERS OF PAPER TECHNOLOGY Volume 5, Number 2, 2019
Proceed with Development Once the physical colour standards have been selected, they can be measured on a spectrophotometer and instantly e-mailed to suppliers who can then begin their development process. Suppliers will typically use dye formulation software to quickly produce dye recipes that have been optimized to control issues such as:
x Metamerism x Repeatability x Coordination with other components Provide Samples to Retail Customer
Suppliers then communicate samples to the retail customer in either physical form or in digital form. The advantage of a digital process is that samples can be quickly compared to target standards using quality control software as a filtering tool to eliminate unacceptable samples before they are given final review. This is critical as the volume of samples typically received in any given period is substantial. Those samples that pass the numeric filtering process can then be evaluated visually using calibrated monitor technology. The samples are evaluated individually against a standard or previewed in various light sources to determine if metamerism is a problem. Prior to final approval the samples may be evaluated with other components to assess colour coordination and consistency. Depending on the volume of development work required, the savings in time and expense realized by a retailer who employs electronic communication of standards and colour submissions can be substantial. It must be noted, however, that not all materials and colours are suitable for digital color communication and will continue to be processed using existing manual methods. Care must be taken at the beginning of the process to identify these types of materials to avoid any misinterpretation of the success of the digital colour program. Ensuring Digital Colour Reliability The key to the success of the digital colour communication process is the reliability of the digital data being communicated during each step of the development cycle. Digital data can be deemed reliable when a different person can get the same results when the physical sample is remeasured at a different location on a different instrument. This is possible by careful control of the instrument, the measurement technique, the environment in which the samples are measured, and the methods employed by the person evaluating the data. Problems in any of these areas can introduce errors that manifest themselves as the wrong colour at the end of the development process. What is your company doing to streamline colour development? Do you have any questions about how you can improve the process? Send us a note at marketing@datacolor.com and let us know. To download the free ebook Fundamentals of Color click here.
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