The basic law of packaging design: Trinity

The common factors that always change the design of a series of packaging are the trademark, the layout of the plane and the font. The three-dimensional modeling, color, and graphic content will, as product elements change, transform between commonalities and personality factors. That is, after clarifying the common elements of series packaging design, which are always the same, that is, the functions of trademarks and products, let us put the product's many elements—specifications, quantities, shapes, components, colors, prices, and packaging design elements—in a solid shape. The combination of color, graphics, and text is examined to further understand which factors form the key elements of a series of commonalities and then to design and perfect it.

Modern packaging design elements 1. The main exhibition surface design is relatively small, and at the same time it is a product image. The design picture should quickly introduce the product to the consumers and use the literal and close-up image techniques to express directly.
2. Since the main design is not a part of the overall design, the overall design of the entire package must be considered, and the composition of the whole composition should be formed through the coherence, repetition, echoing, and segmentation of text, graphics, and color.

Things to know before printing 1. Reasonable application of color paper can cause unpredictable deviations in color. Designers should know the same white paper, the degree of whiteness between them is warm or cold, it will affect the printing color changes, such as yellow printed on cold white paper will make yellow green, printed in the bias Warm red paper will be reddish. Especially for the application of colored art paper, we must be more cautious and have a good idea. In addition, paper with loose texture will absorb ink more, and there will be dull colors after printing. This means that different paper surfaces absorb ink more or less, and even the same paper is printed on different printing machines and the actual dots are also different. The humidity of the air can also affect the paper. A good designer should understand how to use the characteristics of paper to enhance the design effect. Ultimately, creativity can be truly reflected when the ink touches the paper surface. Cross-box color changes are very dangerous, especially for larger sizes. Very high quality carton. Even in the best case, indentation folding does not reach very precise levels. Due to the slight inaccuracy of the indentation, when the carton is folded, one face of the color block is folded onto the other face. Don't be alarmed at the fact that the color of the printed product is very different from the color displayed on the computer screen. The basis of printing color is based on the sampling from the printed chromatogram record and the correct data input to the computer. For high quality packaging cartons. Try not to take more than facing the imposition. Because offset printing is the transfer of ink to a rotating ink roller through a single ink fountain across the width of the printing unit. Each ink fountain is controlled and operated independently, and the enlargement of dots is unavoidable, especially for a box with a large area of ​​background color, it is more difficult to control the color uniformity of the left and right trays on the entire facing plane. For some colors that cannot be printed by four-color nesting. Such as dark red, purple and fluorescent colors, etc., should consider adding application-specific color printing. For the ground version of a large area of ​​the ground color to take the second print in order to make the background uniform. The field is not exposed, and at the same time, some techniques are used to make the picture more pleasing to the eye. For example, for a black solid version, a 30% blue print and then a black print can be used to make the black more thick and mysterious. It should be noted that the yellow ink used on the printing press is almost transparent and it is not possible to print a high concentration of yellow. Magenta must be added to increase the registration. The film can make the picture thicker, but it will make the picture a little darker.
2. Reasonable paper applications The most commonly used paper (full size) is available in two sizes: the standard paper has an area of ​​787mm and a width of 1092mm. The special paper has an area of ​​880mm and a width of 1230mm. The imported paper has a length of 889mm. , Wide are 94mm and other specifications. When printing, press the size of the machine, usually full car, drive car and four drive. Small 16 open offset car and so on. In order to avoid waste, designers must consider the size of the cartons as close to or as close as possible to the number of sheets you are going to use when you design. Clever use of the mutual insertion of the top and bottom covers of the carton and the use of insert (tongue) locations for full use of the paper.
3. Printing and other aspects of attention The number of prints is often determined by the number of prints, generally 5000 paper on the machine once for a printer (less than 5,000 count 5000) principle, four colors to 4 times 4 An imprinter. The size of the paper is based on the opening number of the machine. It is not based on the size of the carton. The printers on the four machines are basically the same as those on the machine. It is thus possible to rationally select whether to open or close the machine according to the number of prints, which is more economical. If the designer can design some color blocks that are printed in four colors to be printed by a spot color at a time, it will reduce the cost of printing and save expenses. For large-area spot color blocks and large-area field blocks, due to the need for secondary printing, the printer can count two colors. Printing gold or silver printing workers is also considered two sets of colors. Hot stamping, silver, colored gold foils and embossed stampers generally count three colors, but they are also calculated based on the area of ​​stamping. Therefore, in order to save costs when designing a picture, designers should not try to design too scattered the hot stamping parts and other parts.
The design color draft of the product packaging screen is only a blueprint on paper, and it is not the finished product packaging. It must be achieved through the above series of production processes. To achieve the desired results, designers must understand the process of plate making and printing. Modern packaging molding process: design a production printing a color, a plate printing (including rolling bumps, hot stamping, foil) a rolling box a bond forming. Printing is the most basic and important process of packaging design. The so-called printing is the use of a variety of methods, a large number of copies of the text or graphics through a printing plate. Different printing processes have different characteristics.
At present, there are mainly two methods for the printing process of paper: lead edition, copperplate printing, also known as relief printing. The printing machine of relief printing is a semi-manually operated small machine; the other is the more advanced offset printing, also Can be called flat printing, offset printing presses have a small offset press and large offset press. As the process of letterpress printing and offset printing is different due to different processes, the results achieved are also quite different. The requirements for design drafts are also different when designing. Therefore, it is necessary to consider which printing method will be used before designing, and it is in particular necessary to ascertain whether relief printing or offset printing will be used.
1. Relief printing letterpress must be based on color design. In addition, draw a black and white draft that distinguishes colors. Black and white drafts are an important part of letterpress printing. It will be used directly for photographic light. Black and white manuscripts are not drawn well or are inconsistent with the manuscript. A wrong version will affect the printing effect. Attention should be paid to the incision. The incision refers to the portion of the printed matter that is printed with a knife after printing. The general incision must be 3 mm. If the color of the artwork is to pass through without leaving a white border, 2-3 mm of bleeding should be released when drawing a black and white manuscript. In this way, after the printing is cut into finished products, white edges are not exposed, and net size lines (finished product lines) and hair size lines are drawn. Finally, you must draw a crosshair in the middle of the manuscript, up, down, left, and right to make imposition during the process of making a plate.
2. Offset printing plate The design draft of the offset plate can be directly made into a manuscript, and the color picture or color picture on the manuscript can be scanned through the computer for dot scanning. Regardless of whether it is embossing or offset printing, the carton pack has its own particularity. It must also draw the carton structure and draw the imposition map as needed. The carton structure of the carton structure is used for row knife grinding. After the carton is printed, it is necessary to use a knife mill to cut the finished product and to roll the folding line. therefore. The knife grinding pattern must be consistent with the structure of the design drawing, and the position of the structure line cannot have any error. Otherwise, due to the error of the structure line, the structure behind the rolling box will be shifted to the top or bottom, and the entire box surface will be in error. The imposition diagram is made according to the characteristics of the printing machine. If the size of the manuscript is a If you open six cars, and the machine on the car is four, then you need to make the sixteen open manuscripts into four open drawings, leaving the trimming line between the carton and the carton 3mm. You must also leave the paper on the machine, the machine to the paper about 10mm bite. It is easy to use the printing plate before the plate making, and finally it also needs to leave the raw edge of the paper to be trimmed to 10mm. In general, the knife grinding pattern and the imposition drawing can be drawn into one piece.
In short, modern packaging design must combine the creative arrangement, production, and printing technologies into one, and play a coherent role in order to complete excellent works.