le laser engraving area network Points
As the name suggests, these points only through the network to change its image reproduction of the opening bands-level changes. Net deep green color of the larger, color and light green, the smaller network, the network points Aoxia depth unchanged. In this connection features, similar to offset the image reproduction outlets principle. Therefore, such gravure also known as "network gravure."
It should be noted that, although the image bands for the basic principles of reproduction and offset similar, but its network structure can not point out Gravure version of the basic technical requirements, and that is: to create and retain net wall, not in the printed edition A large area of no net field wall. Therefore, from a network point of the micro-structure perspective, it is not the same as-India network.
2. Laser engraving Aoxia depth variable Point Network
This is the most typical gravure net Point, often referred to as "classic gravure" or "traditional gravure." Points of such networks only by changing the depth of its net Point Aoxia reproduction of the image-level changes in order. Deep green color network Aoxia deeper, and the color of the net shallow point Aoxia shallow area network point of the same. Point the same size as network, the network wall thickness is equivalent.
3. Laser engraving area and depth can be changed Aoxia Point Network
Electronic machinery in the electromagnetic gravure engraving machine by carving the drum often visible on the network this point, non-laser-carved gravure - the most common type of network points. Point is characterized by its network: the depth of color green open area network and Aoxia depth, light color of the net open green area and Aoxia depth of small, obviously the network wall thickness is not the same.
4. Laser engraving FM network Points
FM network will be the principle applied to gravure, can generate points gravure FM network. Point is characterized by its network: the same size, and in the Gravure version of the space on the location of random changes. Similarly, in order to tune in the image of the dark region there is no large area network without walls "," FM network point of space position should be subject to reasonable control, can not be completely random.
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