Close contact with printing outlets (2)

If there are 1.5 equal-sized dots between two dots, it is called 30% dot.

If it can accommodate 1.25 same-sized outlets between two outlets, it is called 40% outlet;

If there can be 1 dot of the same size between two outlets, that is to say, the black and white spots in the unit area are each half, that is, 50% of the outlets.

And 50% of the Internet sites are judged by the number of white spots that can hold the same size between the two white spots. Judging from the law of dot arrangement, the number of dots contained within the spacing of two white dots is exactly the same as that of 40%; 70% is the same as 30%; 80% is the same as 20%; 90% is the same as 10%.

The above situation shows that the so-called dot number is the percentage of the unit area. For example, a 10% network is 10%, 2 is 20%, and other analogies are 100% for the site layout. From a rough analysis of the positions of positive positions, if the black point is greater than the white point, 50% is the Internet point; if the black point is smaller than the white point, it is 50% or less. The larger the dot number, the thicker the printing ink will be, and vice versa. The size of the outlet area determines the layout level change. Usually the level on the screen is divided into three levels of tone, that is, the high-level level is composed of 1 to 3 percent net points, so that bright parts are formed on the screen. The intermediate tone levels represent the light and dark transitions of the picture, usually consisting of 4 to 6 percent of dots. The dark and dark pictures composed of 7 to 9 percent dots are low-key levels. The brightest place on the printing plate surface, that is, the high-light part is 10% or less.

To sum up, only by accurately understanding the number of outlets can we make better use of the changing rules of outlets to produce printing plates that meet the manuscripts and print color products with accurate colors and satisfactory quality. This is precisely the goal of quality management.

In order to have more contact with the size and actual change of the printing dots in the magnifying glass, please refer to the example image below to hopefully help you. The actual ratio may be somewhat biased and is for reference only. The actual situation is as described in the text.