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details make a difference. As a very important part of the printing process, the process of making a plate determines the quality and aesthetics of the printed matter in detail. A good plate-making makes the printed matter look comfortable, it is difficult to pick out the problem; a bad plate-making will make the printed article look awkward, and the details are not relevant. If your print looks weird, and there are many problems with the details, 80% of them have problems with the plate-making process. Complying with the requirements of plate-making process can make your prints more perfect. This article will introduce the process requirements for plate making.
Plate making process requirements
1. Product classification: Product classification should be clear, such as books, calendars, cigarette packs, three-side sealed bags, middle sealed bags, middle sealed folded bags, fuse sealed bags, roll film, labels, cover film.
2. Font line: The text cannot be less than 1.5mm. Try to use isometric text. Small text lines should not be used for multi-color hollowing or overprinting. Line width ≥0.15mm when imprinting, line width ≥0.3mm when overprinting.
3. Size: A crosshair indicating the size range. Clear the cursor size and position.
4. Transitional color and shallow screen: The minimum number of transitional colors should be no less than 10%. The transitional color length should be considered as a uniform transition without obvious grid connection. 20% or less of the shallow net should be considered to use spot colors, so that the ink color is even when printing, without losing dots.
5. When the character and background color are the same color, the gap between the background color and the character color should be increased to more than 50% as much as possible to make the text easy to read.
6. Issues such as imprinting, overprinting and topping should be explained clearly.
7. The full background color considers bleeding 1-2mm, its role is to protect the finished product when cutting, so that the background color completely covers the part to be expressed.
8. The requirements for deep engraving of line version or separate engraving of hierarchical lines should be specified.
9. Increasing requirements for unit length and plate cylinder diameter: Based on the factors of ink drying and overprinting during the printing process, the printing material undergoes tensile deformation under the combined effect of drying temperature and tension, and the base film is elongated under a certain tension After the tension is removed, it retracts significantly. Therefore, the unit length can be pre-adjusted according to the material shrinkage and the process characteristics of the factory and customers. For example: PET-0.1%, BOPP-0.3%, PA-0.6%, etc. However, there are many exceptions, such as extruded composite film size will become longer, customers only allow negative deviations, etc., need to be adjusted according to specific circumstances.
Since the printing material is elongated in the longitudinal direction during the printing process, the diameter of the printing plate cylinder is gradually increased by a certain percentage to compensate for the change in the length of the printing material, so as to achieve the purpose of accurate overprinting. The increment of the diameter of the plate cylinder used in the woodware industry is 0.3mm, that is, the first color of the diameter of the same set of plate cylinders is the set value.
Workstation for Office & Home Office.
Whether working on your business career or just need a space to writing your next great novel, this desk is a must-have for your office or home office.
Types of computer desks:
1.artificial board (medium density fibreboard =MDF)
The MDF is used as the base material, and the natural veneer is pasted on the positive and negative surfaces, generally with a thickness of 20-60s. And then spray more layers of paint on its surface. The main advantage of this kind of paint board is that the limitation of furniture modeling is not big, and it can be used to make some irregular shapes such as skew and curved surface. Melamine board tends to make simple and fashionable products. The price is relatively low.
2. solid wood panels
Particleboard is mainly used as the base material, and a layer of melamine paper is pasted on the positive and negative surfaces. The industry is short for melamine board. Since the essence of its surface is a layer of paper, it can be designed into numerous colors and printed. For example, wood grain, cloth grain, concrete marble grain and so on. Of course, we can also design designs that do not exist in the natural world. In the picture, the application of the working position should be melamine board, and the desktop is plain white. The edge of the plate is generally sealed with PVC material.
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