One of the most important principles of packaging design is that the design must be achievable in production. The most closely related to flat printing is pre-press printing technology. The ever-changing computer design and pre-press printing have made traditional hand-drawn design history. Network transmission and digital printing have also opened up design ideas and enriched design methods for designers, but many new problems have emerged. Numerous "technical factors" have never been encountered by art designers in the past.
Packaging design is a systematic work, which involves many factors, such as materials, structure, graphic design and production process, etc. It is not as simple as drawing an image. Therefore, packaging design in developed countries is usually done by a small group. There are not only packaging professionals who understand materials and structures, but also graphic designers, as well as sales staff and engineers from production enterprises to participate in the opinion, and strive to make the design perfect and achieve it in production.
There are some misunderstandings in the packaging design practice of Chinese enterprises, mainly manifested as heavy plane, light structure; heavy design effect, light manufacturing process, etc. The direct cause of this problem is that the packaging design in China is mainly done by art designers. These people are almost all from the arts background, and have great limitations in the understanding of materials, structures and processing techniques. The continuous emergence of new materials and new processes can broaden the creative space of designers, but it is also a challenge. The rapid development of new design methods, printing methods and prepress technology also has a profound impact on designers' design activities. Brand-new technologies such as computer design, networked transmission and digital printing directly affect the design work of designers. Therefore, packaging designers must be aware of possible problems in the design process in the new environment. Choosing the right fonts Before using the computer for page design, you should discuss with the prepress service provider and printing staff to decide whether to use hard copy files or electronic files. If you decide to use electronic files, the font is the main factor that determines whether the design work can be displayed during output. Whether to choose TrueType fonts, PostScript fonts or Unicode fonts, you must discuss with the prepress service provider and printer to avoid problems that may occur during the output of the fonts used. If possible, convert fonts to graphics in EPS (Compressed Page Description File) files.
For prepress service providers, the general problem is the placement or page description errors caused by fonts when importing EPS files. But to avoid "nested" EPS files. EPS files containing other EPS files can cause output errors or increase output time. The problem is simplified by copying and filling elements from one EPS file to another EPS file instead of using the import or insert function. The use of inverted fonts Inverted fonts are often used, but should be used with caution. Most inverted fonts are difficult to read. Be especially careful when reversing fonts by processing color images. These images usually contain light and dark areas that make it difficult to read reversed fonts. You should refer to the output section and the technical manual for more information about trapping. Use a more prominent color in the shaded part of the font, and the dots and dots should be at least 70% or more.
In addition, to ensure that inverted fonts are readable, small or thin fonts should also be avoided. The font size shall not be less than 6 points or the finest character shall not be less than 0.007 inches. Sans serif and bold fonts are the best choices for reversing fonts. OPI or APROPI (Open Print Interface) or APR (Automatic Image Replacement) is the most accurate way to locate the page output image. If the prepress service provider supports OPI or APR, they will scan the image for you and give you a low-resolution image for positioning the page output file. When you send a job to a prepress service provider, their software will automatically match and replace low-resolution images with high-resolution images. This workflow can provide you with smaller files, which can be operated faster and easier. See the output section of the page for more information about working with OPI and APR files. The impact of post-processing on output must be taken into account during the planning and design stages. For example, what kind of laminating material should be used for special effect treatment, such as bronzing, embossing, screen printing, coating, etc.
In addition, if more post-processing is required, it should also be considered in terms of working time to allow time for completion. Printing on digital presses As the industry is gradually moving towards full digital printing workflows, digital printing has become more widespread and more widely accepted.
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