You can only rely on the skills and experience accumulated by the operators over the years. It takes at least 8 to 10 years for a reliable spot color ink dispenser to fully control the color changes during ink mixing.

Traditional color matching:

Masters usually use past experience or spot color identification to find out the approximate ink type. Some even just rely on personal feelings to determine the weight, and then use electronic Measure the required amounts and mix the ink on the palette. After mixing is completed, take out a small amount and use a scraper to scrape the ribbon on the substrate to check whether the color is correct. When a color cast is found, add a small amount of ink for fine-tuning. After completion, carefully record the amount and type of ink used on the recording paper in preparation for preparing a large amount of spot color ink.