In the same way, a total of 13 kinds of materials are planned to be sent using the results of 5 types of printed materials, among which are gray paperboard, white paperboard, and kraft paper, such as 〈2〉. In order to know the printing results of the material, all the printing conditions including printer, ink, printing plate and even roller 30n, printing pressure 45n printing speed 0.3m/s did not change. The printing plate uses only the G version, and the printing ink adjustments for each brand are 8.8 PH/21 seconds. This produces a total of 195 samples.
<square two>
The analysis of printed materials is divided into L*a*b* noise and contact angles. The contact angle is based on the ten major optical companies (FTA) 125 and 200 software. The FTA125 is a dynamic image photography system that can be printed in real time. Instant transfer of ink to material. The measurement was performed in 0.5 seconds because the ink at this time was stabilized after the transfer. The amount of ink is between 1 and 2ul.
※Discovery and results
The comparison of the average value ΔE tells us that many stories about different materials are the same for India and India. (Figure 12) Each material is compared with various standard samples of GCMI, that is, the comparison of kraft paper to kraft paper samples, etc... .... The biggest difference is related to a small amount of material and a large amount of ink. For example, 11 of the 13 materials and #2 inks have the lowest ΔE.
Material XX and #1 ink ΔE are also the lowest. The material XIX had less than 1ΔE difference between the #1 and #2 inks, while the materials XXI, #3 had the lowest ΔE, but note that the kraft paper and all ΔES exceeded 15.
<Figure 12>
When comparing the effects of variegation (Fig. 13) with the angle of contact between ink and material (Fig. 14), some interesting phenomena are worth pondering.
<Figure 13>
