1. The image is hazy and blank is not clean. To solve this problem, the platen glass must first be kept clean. Wipe clean with alcohol and rub both sides. The transparency of work is not enough, the penetration of light will be affected, and the printed version will be blurred. If the film plate and glass plate are not tightly adhered to each other, it will also cause sun exposure.
Sometimes a film base is used for a long time. There are a lot of residual rubber left on the tape, the transparency will be affected, and the film and film base will not be attached so tightly. Therefore, the film base will need to be replaced after a long time. . In the case of imposition, if the two images overlap, the image will also be shammy. For example, if the leather cloth is used for a long time, aging will occur, and there will be a small amount of air leaks in some marginal areas. The PS version and the film will not stick tightly, and the printed images will also become empty. If the machine takes a long time, it is necessary to check if the vacuum of the air pump is not enough.
If the lamp is used for too long, the cutting rate will decrease and the exposure will be insufficient. When inhaling, if you can't go from the middle to the surroundings, there will be local bubbles, and the PS plate will have a partial blur. This is to check the bottom plate.
2, PS version outlets are not true. To solve this problem, check on the film. The dots on the film used in the printing shall have sufficient darkness, and the dot structure on the printing plate shall be transferred to the printing plate, and the covered portion (net point) must not pass through the light, causing the photosensitive layer of the printing plate to be sensitive. Otherwise, the dots on the printing plate will not be solid, and the dots will fall when printing. The dot faints. We know that the dots are absolutely clear. The transition between the transparent plane and the cladding with high blackness is very steep. It is a sudden change, and the edges of the dots are actually rising. The darkness of the dot is the opposite, and the blackness increases slowly from the edge. So the dot produces an edge with a large or small slope.
Dizzy dots on printing plates cause color deviations due to their unstable performance, and it is often possible to see "small dots missing" on the printing plate. To solve this problem, the film before printing should undergo a rigorous inspection, and the dots should have sufficient darkness and sufficient clear edges.
3, can not reflect the subtle part of the work. For example, a hair filament, which is on the photo, becomes blurred on the plate. This is mainly due to the lack of exposure or the concentration of the syrup in the process of washing out the small part of the wash.
Sometimes a film base is used for a long time. There are a lot of residual rubber left on the tape, the transparency will be affected, and the film and film base will not be attached so tightly. Therefore, the film base will need to be replaced after a long time. . In the case of imposition, if the two images overlap, the image will also be shammy. For example, if the leather cloth is used for a long time, aging will occur, and there will be a small amount of air leaks in some marginal areas. The PS version and the film will not stick tightly, and the printed images will also become empty. If the machine takes a long time, it is necessary to check if the vacuum of the air pump is not enough.
If the lamp is used for too long, the cutting rate will decrease and the exposure will be insufficient. When inhaling, if you can't go from the middle to the surroundings, there will be local bubbles, and the PS plate will have a partial blur. This is to check the bottom plate.
2, PS version outlets are not true. To solve this problem, check on the film. The dots on the film used in the printing shall have sufficient darkness, and the dot structure on the printing plate shall be transferred to the printing plate, and the covered portion (net point) must not pass through the light, causing the photosensitive layer of the printing plate to be sensitive. Otherwise, the dots on the printing plate will not be solid, and the dots will fall when printing. The dot faints. We know that the dots are absolutely clear. The transition between the transparent plane and the cladding with high blackness is very steep. It is a sudden change, and the edges of the dots are actually rising. The darkness of the dot is the opposite, and the blackness increases slowly from the edge. So the dot produces an edge with a large or small slope.
Dizzy dots on printing plates cause color deviations due to their unstable performance, and it is often possible to see "small dots missing" on the printing plate. To solve this problem, the film before printing should undergo a rigorous inspection, and the dots should have sufficient darkness and sufficient clear edges.
3, can not reflect the subtle part of the work. For example, a hair filament, which is on the photo, becomes blurred on the plate. This is mainly due to the lack of exposure or the concentration of the syrup in the process of washing out the small part of the wash.
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