1, the design features of metal packaging screen printing
Packaging is a concentrated expression of product features, and it is a product's eye-catching face. A high-quality packaging can not only reflect the face of the era of science and technology, reflect the modern aesthetic, but also show the high-tech value of the product. Therefore, to improve the functional design, modeling design and decorative design of packaging, and to use appropriate technological means is the goal pursued by the packaging industry today.
At present, the use of screen printing methods to produce metal packaging graphics has become an important means, because screen printing has a unique performance, a variety of types of ink, ever-changing colors, are free to choose. Therefore, to improve the design and process level to create a new metal packaging screen printing. The specific approach is as follows:
(1) Modeling proportion: The proportion of graphic and graphic modeling of metal packaging products is closely related to the structure, overall shape and layout of the content products. With the development of the times and the change of aesthetics, the ratio of packaging modeling is also constantly increasing. Variety.
(2) Layout design: The design of the various functions of the metal packaging surface should be reasonable and provide consumers with the greatest convenience. The design of the pattern is implied by profound meaning, which represents both the nature of the product and the production unit. Pattern design should pay attention to the following aspects: 1 It should have long-term use, and should not be changed frequently; 2 Concise and eye-catching, can leave a deep impression on people; 3 Has a unique and novel style; 4 Reflect the characteristics and nature of the product .
2. Design requirements for screen printing of metal packaging
The most important thing for any job is the initial basic work. The design with screen printing as the main process, in addition to following the principles of economy and practicality, should also focus on the combination of science and craftsmanship. To ensure that the content is accurate and the layout is reasonable, appropriate decorative patterns are added to organically link the characteristics of screen printing with the aesthetics and the optical color of the material, and become an important design concept for making packaging appearance with the screen printing process. .
(1) Since the screen brush is not easy to express the effect of subtle lines, it is necessary to leave free space or overlapping parts at the two colors adjacent or at the junction, and the width of the lines and the size of the handwriting also exceed the maximum resolution of the platemaking 0.1. Mm or more.
1 In the design of color printing, the outside frame size should be as large as possible to ensure that the size and shape of the inner frame are accurate, so as to ensure that the frame does not touch the inner frame when the screen is closed.
2 When the adjacent color areas do not require space, they must be designed separately, and two rows of lights should be used. These are two differently shaped color areas, and no gaps are required in the middle.
3 The intersection of the two color blocks is not easy to print very well. This situation can be compensated by overlapping design methods. This also needs to design the secondary emission separately. The surrounding area of ​​the patch area should be slightly larger than that required by the drawing. In other words, when the two colors are adjacent, the light area is designed to be printed first, and the dark area is printed afterwards. Light color to prevent gaps in the middle.
(2) If there are more appearance requirements, whether it is the use of multi-level overprinting or multiple color screen printing, it will make the layout appear cluttered, although colorful, but lost the sense of elegance and dignity. According to the principle of darkness in the dots, the neighboring parts of the complex area are printed in the same color in different sizes, different shapes, or different densities, and they are changed in agreement. As a design, a row of photos, a print, so reducing the multiple positioning, multiple printing troubles and improve efficiency. It can not only play the role of color zoning, but also make the layout of the layout in accordance with the aesthetic style of the times, and subtly blend functional beauty with artistic beauty. Packing and printing with a proper, comfortable, strong sense of the times. Fully shows the value of the product.
(3) Emphasize the decorative effect. For those printing surfaces that are simple in content and large in space, properly accompanied by differently shaped color patches and decorative ornamentation of lines will make a few simple and boring contents vivid and lively.
(4) Select the appropriate font. Text design, Chinese, Pinyin, English, and numbers are common languages ​​for packaging designs. The design of texts not only needs to meet the needs of content functions, but also must have good craftsmanship and aesthetics. Most of the Chinese characters use Song-style, imitation idioms, and cymbals. Chinese Pinyin letters and English mostly use masculine, long, and other ligatures, and flat ligatures. Numbers are the most common symbols. The ratio of height and width directly affects the recognition effect. Height: Width is generally (5:3) ~ (3:2). Commonly used Song fonts, due to the square shape, the pen front is obvious, horizontal and vertical uneven, the font body is printed on the metal packaging below 4.2mm, will appear thin, the title of the print is also seemingly drifting; imitation of the words in the horizontal and vertical thickness, the shuttle angle, Fine fonts, small print or title effects are very good. When the character body is above 4.8mm, the bold characters are often used. The characters are dignified, the strokes are thick, and the marks on the package are sturdy and eye-catching. When a large headline or space is large, a square typeface or a variant typeface can be used. The printed version is open, bold, and has a strong sense of calligraphy.
In short, the selection of characters should be consistent with the screen printing process characteristics. After printing, it should produce a stable, thin, easy to read, and easy to distinguish effect.
(5) Use standard symbols. Some product's nominal, commonly used English letters or all kinds of symbols, such as Kg, mm, L, Ω, φ, etc., for the sake of accuracy, we try to use standard symbols directly maps. The commonly used Chinese characters do not use handwriting. Instead, the words on the letter board are put into a positive film as required, and they are pasted on the drawings, and then turned into Yin and Yang negatives to ensure the consistency of the entire font.
(6) Seriously treat each drawing, and on the premise of respecting the wishes of users, take the initiative to negotiate artistic re-creation with users, apply mature tactics and unified image to different products, and establish their own style.
(7) Take seriously the weak links in overprinting patterns. The level of craftsmanship is the technical basis for guaranteeing and representing the level of design. It is also the creation of the beauty of the product's texture, thereby enhancing the protection of the formal beauty. Therefore, screen printing should also prevent rough fabrication and damage the appearance of the image. It is often found that different manufacturers print different products on the same film. There are technical differences, there are differences in color matching, material selection, and more is the difference in the quality of the process.
(8) According to the user-supplied design sketches, conduct positive drawing, engraving or mapping, and then make a plate. Since the microcomputer has been used in the design of the system, the microcomputer design is used. The light drawing version is a relatively advanced technique, and the size of the design is also relatively accurate. If there is no advanced equipment, drawing, mapping, engraving, etc. can also be used for less demanding products.
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