How to use the printability meter with the Spectrophotometer

Product Usage

The digital proofing machine before printing greatly saves the production time of the printing press; reduces the loss of paper, ink, rags, car wash water, labor and electricity; and improves the stability of spot colors.

Digital Display Offset Printing Color Display This proofing machine completely imitates the working principle of the printing press, with adjustable pressure and wide substrate. Suitable for printing, packaging and ink companies. It can accurately predict the hue of the ink. It can develop color and produce printed materials within 2 minutes. Check colors by printing solid color bars on a color display, then match specific colors to the correct color on the printer. Color matching jobs are fully converted to prepress jobs.

Professional technology

1. Four-color ink detection: It can detect the hue, gloss, and color density of the ink; start with controlling the quality of ink raw materials, so as to achieve the purpose of controlling the quality of printed products.

2. Digital display offset printing color development instrument: multi-stage color development instrument can print color bars of different colors at the same time or print the same ink color bar with different ink layer thickness, and can also print new and old inks for comparison on the same printing material. This print proofer provides effective color contrast.

3. Four-color ink detection: It can detect the hue, gloss, and color density of the ink; start with controlling the quality of ink raw materials, so as to achieve the purpose of controlling the quality of printed products.

4. Pre-press spot color approval for customers: Simple color bars can be printed for customer pre-press approval or archiving.

5. Detect the degree of discoloration of dry and wet ink: the color development instrument displays the required spot color ink strips, and after natural drying, the hue of the spot color after drying can be known. (For example: the phenomenon that purple and dark blue will turn red after drying can be ruled out before printing.)

6. With the use of ink quantifier, the usage of spot color ink can be predicted, and the loss of residual ink and storage accumulation can be greatly reduced.

7. Cooperating with relevant instruments, the characteristics of ink abrasion resistance, curing time, light resistance and heat resistance can be predicted.

8. Data management: cooperate with Spectrophotometer for color detection, and can measure the data report (Lab value) of the color bar.

Empirical color matching method

The empirical color matching method refers to the color matching based on the experience and feeling of the color matcher without a color measuring instrument. The early stage is based on the experience accumulated by the color matcher from practice, and the color matching in the middle and late stages is based on 10 basic color maps. or printing.

The color spectrum serves as a reference standard for visual color measurement. The empirical color matching method is often affected by the physiological and psychological factors of the color matcher and other objective conditions, and the product quality is difficult to maintain stability. In addition, relying on experience and feeling color matching can only be qualitative, not quantitative, and it is difficult to disseminate and communicate technology.

mechanical color matching

The mechanical color matching method is a more professional color matching method that has gradually become popular in modern times. In each link of color matching, certain machinery and instruments are used as configuration and measurement tools. By drawing curves and charts as a reference for color matching, the color matching work is relatively accurate. carried out within the range. This method changes some of the blindness of color matching in the past experience, and improves the speed and quality of color matching, but the accuracy of color matching is low and the error is large.

computer color matching    

Computer color matching has a history of about 30 years abroad, and it has been applied in many color-using departments at home and abroad. People use the connection between the color database stored in the computer and the relevant color matching software to analyze and process the color data on the sample, and through calculation, correction, and color adjustment, select the color formula that suits the requirements of the sample, and then complete the automatic printing of ink. color matching. Computer color matching requires standard color samples and the color of the prepared ink samples to be expressed in numbers, which ensures the accuracy and uniformity of each color matching, and greatly saves the color matching time. Convenience, speed, speed and accuracy are the advantages of computer color matching . However, the color matching software developed by different enterprises and companies are all developed on the basis of considering their actual production and application conditions, and there is no unified standard, which is one of the reasons why computer color matching cannot be popularized.