A qualified graphic designer can not only consider the design effect of his own piece, but also take into account the effect of printing. Because the ultimate effect of graphic design needs to be reflected by the reduction of the printing press.
The highest level of design is to display the richest content with the least amount of color to be the best graphic design. The prepress design that adjusts the film to the most suitable for its production is the best printing design.
First, the color of offset printing
Offset printing is also known as offset printing. Therefore, whether the color of the offset printing can be correctly restored has the most direct influence on the dots on the printing plate (PS plate). As long as the dot density of the pattern distribution is appropriate and consistent with the needs of the design document dot, there is basically no large color error.
Factors affecting the accuracy of printing at the time of printing mainly include the accuracy of film screening, the exposure accuracy of film printing, and the main factor of the contrast ratio of step grayscale of the PS version. In order to ensure that the printing effect reaches the design effect before printing, it is necessary to consider the factors and influences such as the design of the film outlets and the exposure of the printing plate, and whether it will cause the deviation of printing color effect. Since the printing color is affected by the amount of ink on the printing plate, and the amount of ink is formed by the density of the dots, the dot is a key factor that influences the accurate reproduction of the color.
Second, the performance of graphic design and printing design
Graphic design is the preference of many young people. Graphic design is the basic skill of printing design. Without the basics of graphic design, printing design cannot be done. The basic principle of printing graphic design is that in addition to the operation of graphic design software, graphic design pattern processing. Skills, but also familiar with the basic structure of the box, the basic functional requirements of the box, the state's basic regulations on the packaging of goods. The simple graphic design is just a combination of material and common sense. For example, how to highlight the theme, how to set the main color of the color, how to rationally arrange all the necessary content within a limited range of structures, what kind of expressions the structure of the box is suitable for and so on. In addition to these basic functions, the printing plane design must also understand the basic knowledge of printing. This is the basic condition for printing. Some primary graphic designers who do not understand basic common sense in the printing process tend to appear to be very beautiful in design and hard to show results when they can be printed. For example, whether the color can be accurately restored, whether the size of the font can be clearly printed, and whether the pattern structure affects the accuracy of overprinting. These problems are that the printing design must take into account the principle of the reduction and expression of colors in the printing process. It must be considered that the color of the graphic design is a complete color, and all the colors must be divided into red, yellow, and blue when printing. The four basic monochromatic and black are monolithically stacked together in a layer to restore the color. Therefore, the pre-press graphic designers must understand how the printed graphic design can turn their own design ideas and ideas into reality and truly show it. This is a qualified printing graphic design.
Third, outlets and colors
1. Adjust the performance of the design from the principle of printing.
Design performance is the first element of the test design draft, because no matter how beautiful your draft design, but the printing conditions can not meet the requirements, it is futile, or at least imperfect, in order to achieve this goal, first of all You must know how to control the network accurately.
The depth of any color is adjusted by the number of dots in the unit. The more dots there are, the darker the color is, and the smaller the dot, the lighter the color. When the color is superposed, which color dots will appear, the color that is laminated will tend to be of which color. The color that has fewer dots will be lightened accordingly. Therefore, the dot is a color. The only medium, and the number of outlets is the main condition of the color performance status. Therefore, how to grasp the number of outlets is the most critical measure for the qualification of film production.
In the actual production process, it is necessary to carefully analyze the materials provided by the customer for production, and accurately determine whether the material and the customer's requirements are the same and what are insufficient, so that they can be effectively adjusted during production.
2. The color of the material tends.
Most of the image materials provided by most customers have different degrees of color deviation, and there is a certain gap between the intentions expressed by the customers. This is because the picture is a static object or a landscape material, regardless of a scenery photograph or a character photograph. Photos are taken in a specific environment, and these photos are affected by ambient light. In the real world, no matter if it is an artificial light source or a natural light source, changes are occurring all the time, and these changes will produce different tendencies in the color of the object. Therefore, there are deviations between the colors and the colors we need. These deviations must be adjusted according to the needs of the project when designing and manufacturing, until the adjusted colors meet the needs. These well-designed documents can be sent out of the film after they are connected to the Internet. Under normal circumstances, in addition to the field color, any pattern with different color changes cannot be restored through printing before the screen is added. The purpose of the screen is to transform ordinary photographic images into printed patterns with dots. This can be provided to the offset press to complete the color performance.
3. Adjustment of outlets
The adjustment of outlets is divided into monochrome adjustment and partial pattern adjustment. The purpose of the overall monochromatic adjustment is to adjust the overall color cast. Designers must take into account the printed material and the color cast that may occur during printing. Which color is easy to appear on any kind of paper color shift, we must adjust in advance, such as red on the yellow paper printing Will be yellowish. A 100% red would have turned into a 90% red and a 10% yellow orange. At this time, the dot density of the red net would be increased and the dot density of the yellow net of this pattern would be reduced. If you need to highlight red, you may even increase red again. At the same time, yellow will be reduced. A yellowish blue print on the paper may have a green tendency. At this time, it is necessary to increase the amount of blue and red dots and reduce the amount of dots on the yellow net. To make the final print effect bright, consider the overall grayscale. Although grayscale can enrich the level of midtones, it can also cause the overall color to become darker and less loud. The adjustment of gray scale is to increase the contrast of each color. Films with high contrast have bright effects after printing. On the contrary, the effects of film printing with small contrast are dark, although the intermediate color layers are rich, but People's feelings are always bleak. Therefore, the central gray level of a monochrome network is a key factor that directly affects the loudness of the final effect.
The purpose of partial adjustment is mainly to adjust whether a certain pattern is coordinated in the entire screen and whether it needs to be highlighted. For example, if a person's skin has a morbid, unhealthy feeling if he is yellow, he needs to increase the amount of red dots and reduce the amount of yellow dots. When he adds an appropriate amount of blue, the skin will feel red and white. It will not affect other red color values. If the red flowers are yellow, they cannot stand out. Therefore, it is necessary to increase the contrast of the red while increasing the brightness of the flowers. In short, you need to highlight a part of the color, then increase the dot and contrast of a certain part. Of course, although this method is simple, it really needs to be exquisite, and it needs considerable experience to support it.
There are occasional old boxes or other products that may be encountered because there is no original design document available. At this time, it is necessary to rely on the old product to perform color separation processing by scanning to produce film. If the output person simply depends on the computer for automatic color separation and automatic output, then the prints that you print out of the film will certainly be grayed out. There is always an old feeling. This is because the operation of the computer will not perform rational analysis. He only objectively reflects the real data. Not only did he reflect the color, he also reflected the color of the paper that had been oxidized and grayed out, and the color of the darkened pollution. Therefore, in order to give people a feeling and effect of a new product, it is necessary to remove the intermediate grayscale through manual adjustment, so as to truly reflect the design effect of the original document. The skill that this method needs to master is how much the contrast of each color needs to be increased. This also requires some experience to support.
In short, a qualified graphic design and output craftsman can not only consider his own piece of effect, but also take into account the effect after printing. Because the final effect of the printing plane design needs to be reflected by the reduction of the printing machine, the design that fully takes into account the printing effect is the perfect design. Of course, in order to take into account these factors, designers must have a solid understanding of printing.
4. Qualified film production:
The quality of the film is the most critical step of the printing effect, because all the subsequent printing processes are based on the effects of the film. Although the CTP plate making technology does not require filming, the document production is also a crucial step. To produce a qualified, high-quality film, we must first understand how the press prints the contents of the film onto paper. As the key medium on which the printing pattern is formed, the network point has become the only purpose that the offset printing film bears, so the status of the outlet is also the only indicator of film passing or not. So what kind of outlets can be considered as qualified, that is, whether the number of outlets meets the needs of the pattern in the printing performance, and whether the color needed to be expressed can be expressed completely and accurately.
Most of the common patterns are represented by the four colors red, yellow, blue, and black. Each color is represented by dots. The four colors of dots are precisely stacked together to form what we need. picture of.
The highest level of design is to display the richest content with the least amount of color to be the best graphic design. The prepress design that adjusts the film to the most suitable for its production is the best printing design.
First, the color of offset printing
Offset printing is also known as offset printing. Therefore, whether the color of the offset printing can be correctly restored has the most direct influence on the dots on the printing plate (PS plate). As long as the dot density of the pattern distribution is appropriate and consistent with the needs of the design document dot, there is basically no large color error.
Factors affecting the accuracy of printing at the time of printing mainly include the accuracy of film screening, the exposure accuracy of film printing, and the main factor of the contrast ratio of step grayscale of the PS version. In order to ensure that the printing effect reaches the design effect before printing, it is necessary to consider the factors and influences such as the design of the film outlets and the exposure of the printing plate, and whether it will cause the deviation of printing color effect. Since the printing color is affected by the amount of ink on the printing plate, and the amount of ink is formed by the density of the dots, the dot is a key factor that influences the accurate reproduction of the color.
Second, the performance of graphic design and printing design
Graphic design is the preference of many young people. Graphic design is the basic skill of printing design. Without the basics of graphic design, printing design cannot be done. The basic principle of printing graphic design is that in addition to the operation of graphic design software, graphic design pattern processing. Skills, but also familiar with the basic structure of the box, the basic functional requirements of the box, the state's basic regulations on the packaging of goods. The simple graphic design is just a combination of material and common sense. For example, how to highlight the theme, how to set the main color of the color, how to rationally arrange all the necessary content within a limited range of structures, what kind of expressions the structure of the box is suitable for and so on. In addition to these basic functions, the printing plane design must also understand the basic knowledge of printing. This is the basic condition for printing. Some primary graphic designers who do not understand basic common sense in the printing process tend to appear to be very beautiful in design and hard to show results when they can be printed. For example, whether the color can be accurately restored, whether the size of the font can be clearly printed, and whether the pattern structure affects the accuracy of overprinting. These problems are that the printing design must take into account the principle of the reduction and expression of colors in the printing process. It must be considered that the color of the graphic design is a complete color, and all the colors must be divided into red, yellow, and blue when printing. The four basic monochromatic and black are monolithically stacked together in a layer to restore the color. Therefore, the pre-press graphic designers must understand how the printed graphic design can turn their own design ideas and ideas into reality and truly show it. This is a qualified printing graphic design.
Third, outlets and colors
1. Adjust the performance of the design from the principle of printing.
Design performance is the first element of the test design draft, because no matter how beautiful your draft design, but the printing conditions can not meet the requirements, it is futile, or at least imperfect, in order to achieve this goal, first of all You must know how to control the network accurately.
The depth of any color is adjusted by the number of dots in the unit. The more dots there are, the darker the color is, and the smaller the dot, the lighter the color. When the color is superposed, which color dots will appear, the color that is laminated will tend to be of which color. The color that has fewer dots will be lightened accordingly. Therefore, the dot is a color. The only medium, and the number of outlets is the main condition of the color performance status. Therefore, how to grasp the number of outlets is the most critical measure for the qualification of film production.
In the actual production process, it is necessary to carefully analyze the materials provided by the customer for production, and accurately determine whether the material and the customer's requirements are the same and what are insufficient, so that they can be effectively adjusted during production.
2. The color of the material tends.
Most of the image materials provided by most customers have different degrees of color deviation, and there is a certain gap between the intentions expressed by the customers. This is because the picture is a static object or a landscape material, regardless of a scenery photograph or a character photograph. Photos are taken in a specific environment, and these photos are affected by ambient light. In the real world, no matter if it is an artificial light source or a natural light source, changes are occurring all the time, and these changes will produce different tendencies in the color of the object. Therefore, there are deviations between the colors and the colors we need. These deviations must be adjusted according to the needs of the project when designing and manufacturing, until the adjusted colors meet the needs. These well-designed documents can be sent out of the film after they are connected to the Internet. Under normal circumstances, in addition to the field color, any pattern with different color changes cannot be restored through printing before the screen is added. The purpose of the screen is to transform ordinary photographic images into printed patterns with dots. This can be provided to the offset press to complete the color performance.
3. Adjustment of outlets
The adjustment of outlets is divided into monochrome adjustment and partial pattern adjustment. The purpose of the overall monochromatic adjustment is to adjust the overall color cast. Designers must take into account the printed material and the color cast that may occur during printing. Which color is easy to appear on any kind of paper color shift, we must adjust in advance, such as red on the yellow paper printing Will be yellowish. A 100% red would have turned into a 90% red and a 10% yellow orange. At this time, the dot density of the red net would be increased and the dot density of the yellow net of this pattern would be reduced. If you need to highlight red, you may even increase red again. At the same time, yellow will be reduced. A yellowish blue print on the paper may have a green tendency. At this time, it is necessary to increase the amount of blue and red dots and reduce the amount of dots on the yellow net. To make the final print effect bright, consider the overall grayscale. Although grayscale can enrich the level of midtones, it can also cause the overall color to become darker and less loud. The adjustment of gray scale is to increase the contrast of each color. Films with high contrast have bright effects after printing. On the contrary, the effects of film printing with small contrast are dark, although the intermediate color layers are rich, but People's feelings are always bleak. Therefore, the central gray level of a monochrome network is a key factor that directly affects the loudness of the final effect.
The purpose of partial adjustment is mainly to adjust whether a certain pattern is coordinated in the entire screen and whether it needs to be highlighted. For example, if a person's skin has a morbid, unhealthy feeling if he is yellow, he needs to increase the amount of red dots and reduce the amount of yellow dots. When he adds an appropriate amount of blue, the skin will feel red and white. It will not affect other red color values. If the red flowers are yellow, they cannot stand out. Therefore, it is necessary to increase the contrast of the red while increasing the brightness of the flowers. In short, you need to highlight a part of the color, then increase the dot and contrast of a certain part. Of course, although this method is simple, it really needs to be exquisite, and it needs considerable experience to support it.
There are occasional old boxes or other products that may be encountered because there is no original design document available. At this time, it is necessary to rely on the old product to perform color separation processing by scanning to produce film. If the output person simply depends on the computer for automatic color separation and automatic output, then the prints that you print out of the film will certainly be grayed out. There is always an old feeling. This is because the operation of the computer will not perform rational analysis. He only objectively reflects the real data. Not only did he reflect the color, he also reflected the color of the paper that had been oxidized and grayed out, and the color of the darkened pollution. Therefore, in order to give people a feeling and effect of a new product, it is necessary to remove the intermediate grayscale through manual adjustment, so as to truly reflect the design effect of the original document. The skill that this method needs to master is how much the contrast of each color needs to be increased. This also requires some experience to support.
In short, a qualified graphic design and output craftsman can not only consider his own piece of effect, but also take into account the effect after printing. Because the final effect of the printing plane design needs to be reflected by the reduction of the printing machine, the design that fully takes into account the printing effect is the perfect design. Of course, in order to take into account these factors, designers must have a solid understanding of printing.
4. Qualified film production:
The quality of the film is the most critical step of the printing effect, because all the subsequent printing processes are based on the effects of the film. Although the CTP plate making technology does not require filming, the document production is also a crucial step. To produce a qualified, high-quality film, we must first understand how the press prints the contents of the film onto paper. As the key medium on which the printing pattern is formed, the network point has become the only purpose that the offset printing film bears, so the status of the outlet is also the only indicator of film passing or not. So what kind of outlets can be considered as qualified, that is, whether the number of outlets meets the needs of the pattern in the printing performance, and whether the color needed to be expressed can be expressed completely and accurately.
Most of the common patterns are represented by the four colors red, yellow, blue, and black. Each color is represented by dots. The four colors of dots are precisely stacked together to form what we need. picture of.