Do you have to pay attention to and master the printing design? How to identify the number of outlets?
The outlets are the basic units for realizing that printed products can reflect the level of the publication surface and the level of lightness (darkness). It plays a role in determining the print color, gradation, and image outline in printing. Therefore, when the plate is made, only the dot size is accurate to faithfully reproduce the original color, ensuring that the printing process achieves good results.
Because the degree of shade of the printed page is expressed by the size of the dot, the dots of different sizes are commonly referred to as “becomes†in the process. Only with an accurate understanding of the concept of the dot number, can we better use dots to print the prints closest to the original color. Therefore, understanding the number of outlets is the knowledge that print operators and quality inspectors should master. There are two ways to identify the dots:
One is to use the density meter to measure the dot density of the dot, and then converted into the dot area percentage, such as: the dot density of the dot is 0.3, the dot area is 50%, this method is more scientific and accurate;
Another method is to use a magnifying glass to visually measure the ratio of the dot area to the blank area. This method is more intuitive and convenient, but due to experience, the error is large, specifically:
The identification of the number of points within 50% of the dots is based on the number of black and white dots that can accommodate the gap between the two edges.
That is, within the gap between the two black dots on the opposite side, three equally sized black dots can be placed, which is a 10% dot.
If within the distance between two outlets, it can accommodate two equally large outlets, called 20% outlets;
If there are 1.5 equal-sized dots between two dots, it is called 30% dot.
If there are 1.5 equal-sized dots between two dots, it is called 30% dot.
If there can be a single dot of the same size between two outlets, that is, half of the black and white dots per unit area, that is, 50% of 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.
The outlets are the basic units for realizing that printed products can reflect the level of the publication surface and the level of lightness (darkness). It plays a role in determining the print color, gradation, and image outline in printing. Therefore, when the plate is made, only the dot size is accurate to faithfully reproduce the original color, ensuring that the printing process achieves good results.
Because the degree of shade of the printed page is expressed by the size of the dot, the dots of different sizes are commonly referred to as “becomes†in the process. Only with an accurate understanding of the concept of the dot number, can we better use dots to print the prints closest to the original color. Therefore, understanding the number of outlets is the knowledge that print operators and quality inspectors should master. There are two ways to identify the dots:
One is to use the density meter to measure the dot density of the dot, and then converted into the dot area percentage, such as: the dot density of the dot is 0.3, the dot area is 50%, this method is more scientific and accurate;
Another method is to use a magnifying glass to visually measure the ratio of the dot area to the blank area. This method is more intuitive and convenient, but due to experience, the error is large, specifically:
The identification of the number of points within 50% of the dots is based on the number of black and white dots that can accommodate the gap between the two edges.
That is, within the gap between the two black dots on the opposite side, three equally sized black dots can be placed, which is a 10% dot.
If within the distance between two outlets, it can accommodate two equally large outlets, called 20% outlets;
If there are 1.5 equal-sized dots between two dots, it is called 30% dot.
If there are 1.5 equal-sized dots between two dots, it is called 30% dot.
If there can be a single dot of the same size between two outlets, that is, half of the black and white dots per unit area, that is, 50% of 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.
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