Accurate color transfer and communication in the printing industry

In recent years, the requirements for color in the printing industry have become more and more important, and the importance of color processing processes such as special color ink production and printing has also been increased. In order to meet the requirements of speed, quality, and market value, the industry must perform accurate color management and transmission through accurate color assessment. The Institute of Informatics specially held the "Precise Color Communication and Communication" Seminar on August 25. We invited Mr. Liao Guojun, Technical Manager of Data Color International (DIC), who has many years of experience in color management practice, to explain to the industry how to overcome problems. The long-standing color problem in the industry. The following is a summary report of the seminar.

Most of the traditional ink and printing industries still use the human eye to determine colors and manage colors. However, due to differences in light sources, work environments, and human eyes, they often make the human eye's judgment unreliable. The instrument measures color samples and performs color management. The color spectrometers used in the market today have gradually been replaced by spectrophotometric instruments, because the former cannot avoid the problems of long-term stability and exchangeability between machines. The advanced spectrophotometer measures the color. The spectroscopy technology brought by high technology can not only greatly improve the exchangeability between different models and different brands, but also has comparable prices and color difference.

In addition to standardized colorimetric instruments, a common color difference formula, such as CMC or CIE94, and a reasonable tolerance range should be used as the color communication channel between upstream and downstream. At the same time, with the latest screen display and correction technology, the differences between different screens can be controlled under the CIE dE 0.5. In addition to the data colorization system, users can create, change and deliver the required Image and color, and the processor can also send a confirmation of the data color sample and immediately obtain correct instructions for color adjustment. As a result, the demand for solid color samples can be greatly reduced or even used to confirm the color.

With the rapid development of the electronics industry, information globalization is no longer out of reach. In particular, the trend of computer-to-plate/printing is hitting the global printing industry. In the future, it is expected to use computer information transmission for transnational printing and publishing. Therefore, accurate computer analysis of data is absolutely necessary. We believe that the ink and printing industry will follow the trend of the times, go to instrumentalized color management and digitalized color transfer and communication, and then improve the quality of products to meet the needs of the international market.

Source: Print think tank