1, the color consistency. One important way to ensure color consistency is to allow customers to observe color proofs and printed proofs under standard lighting conditions and gain their approval. In order to reduce the change of color in the process of transmission and reproduction, the printing industry has specially formulated standard color observation conditions, such as a standard color observation tank (a stable light source control area for observation of proofs or other printed matter).
There are two key elements in this color observation pool: one is illumination (color temperature is 5000K); the other is neutral ash environment (MunsellN8).
It is very important to check the color on the observation tank, because the lighting conditions and the surrounding environment when we inspect colors will affect our perception of color. If there is no standard observation tank, we can also watch the proofs in non-direct sunlight.
2, the impact of lighting. When we look at the colors under different lighting conditions, we see different results. Another problem that we need to pay attention to in observing colors is metamerism. The so-called "halody" means that when the two proofs are under a certain light source, the colors presented are the same, and under the other light source, the colors presented are different.
When viewing colors, it is very important to keep the lighting conditions stable and consistent. We use a light source with a color temperature of 5000K, mainly because the light source is a mixture of red light, green light, and blue light, providing a stable and consistent viewing environment.
3, the impact of the surrounding environment. We observe whether the surrounding environment will affect the color when the proofs are printed. Near color, that is, the color similar to the proofs or printed sheets that are observed, can influence people's perception of color.
This is the so-called "critical effect", which to a certain extent reflects the importance of using a neutral environment when observing proofs. It is understood that the use of a standard gray paint (Munsell N8) in the surrounding environment can effectively reduce the influence of neighboring colors when people confirm colors.
4, paper. The subtractive method is a method of mixing colors with yellow, magenta, cyan, and black inks in a white environment (usually paper). In this color reproduction process, there is an element that has a significant effect on the printing effect of color on the machine. That is paper.
The same ink may produce different printing effects on different papers. The whiter the paper, the greater the color gamut that can be reproduced on the press. If the paper Baidu is not enough, then the color gamut it reproduces on the press is smaller.
5, spot color. Each spot color corresponds to a special type of ink (other than yellow, blue, green, and black) that needs to be printed on a separate printing unit on the press. There are many reasons why people use spot colors in print, and highlighting a company’s brand image (such as Coca-Cola's Red or Ford's Blue) is one of them, so can it accurately reproduce a spot color whether it is for customers or It is crucial for the printing factory.
Another reason may be the use of metallic inks. Metallic inks usually contain some metal particles and give the prints a metallic sheen. In addition, when the original design requirements for color exceed the range of color gamut that Huangpin Qinghuang can achieve, we can also use spot colors to supplement.
6. Convert the color to CMYK. When we convert the color of an image from RGB to CMYK, there are usually two ways to generate the halftone dots of the black ink, one is the under color removal (UCR) and the other is the gray component substitution (GCR). Which method you choose depends primarily on how much of the yellow, blue, green, and black inks will be printed in the image.
"Background removal" refers to the removal of a part of the three primary colors from yellow, magenta, and blue to form a neutral gray background, that is, the approximately black background formed by the three primary colors of the colorant, yellow, magenta, and blue, and replaced with black ink. . Background removal mainly affects the shadowed area of ​​the image, not the colored area. When the image is processed by the undercoat removal method, it is easy to have a color cast during the printing process.
The gray component substitution is similar to the under color removal, and the black ink is used instead of the gray formed by the color ink overprinting, but the difference is that the gray component substitution means that the gray component within the entire gradation range can be replaced with black. Therefore, when the gray component is replaced, the black version has a small amount of ink, and the image is mainly printed by the color ink. When the maximum replacement amount is used, the black version has the largest amount of ink, and the color version has a correspondingly reduced amount of ink. The image processed with the gray component replacement method is more stable in the printing process, but its effect depends to a large extent on the ability of the press operator to adjust the color.
7, professional terms. We think color is hard to describe, mainly because it is a kind of feeling, just like smell, taste and hearing. This feeling cannot be described in words. When we have to use words to describe colors, we often use vague vocabulary such as “dull,†“turbid,†“too warm,†or “too cold.â€
For example, what is the image is too warm? Is it said to be reddish, yellowish or magenta? Is that “too cold†mean that the image is too blue, too green or too green? We say that the image is too "flat" usually means that its contrast is not enough, and "turbid" consciousness is that the image's tone is too dark. The use of non-standard terms can lengthen the proofing period and delay the production progress of the job. Therefore, we must use professional terminology when talking about colors - this can save you a lot of time and money.
8. Printing is not an "exact match" process. What is replication? Replication is not exactly matching, but infinitely close. Printing is not an exact match, mainly because there are many color reproduction systems in the process of color reproduction. Photography is a typical color reproduction system, as is proofing and printing.
There are two key elements in this color observation pool: one is illumination (color temperature is 5000K); the other is neutral ash environment (MunsellN8).
It is very important to check the color on the observation tank, because the lighting conditions and the surrounding environment when we inspect colors will affect our perception of color. If there is no standard observation tank, we can also watch the proofs in non-direct sunlight.
2, the impact of lighting. When we look at the colors under different lighting conditions, we see different results. Another problem that we need to pay attention to in observing colors is metamerism. The so-called "halody" means that when the two proofs are under a certain light source, the colors presented are the same, and under the other light source, the colors presented are different.
When viewing colors, it is very important to keep the lighting conditions stable and consistent. We use a light source with a color temperature of 5000K, mainly because the light source is a mixture of red light, green light, and blue light, providing a stable and consistent viewing environment.
3, the impact of the surrounding environment. We observe whether the surrounding environment will affect the color when the proofs are printed. Near color, that is, the color similar to the proofs or printed sheets that are observed, can influence people's perception of color.
This is the so-called "critical effect", which to a certain extent reflects the importance of using a neutral environment when observing proofs. It is understood that the use of a standard gray paint (Munsell N8) in the surrounding environment can effectively reduce the influence of neighboring colors when people confirm colors.
4, paper. The subtractive method is a method of mixing colors with yellow, magenta, cyan, and black inks in a white environment (usually paper). In this color reproduction process, there is an element that has a significant effect on the printing effect of color on the machine. That is paper.
The same ink may produce different printing effects on different papers. The whiter the paper, the greater the color gamut that can be reproduced on the press. If the paper Baidu is not enough, then the color gamut it reproduces on the press is smaller.
5, spot color. Each spot color corresponds to a special type of ink (other than yellow, blue, green, and black) that needs to be printed on a separate printing unit on the press. There are many reasons why people use spot colors in print, and highlighting a company’s brand image (such as Coca-Cola's Red or Ford's Blue) is one of them, so can it accurately reproduce a spot color whether it is for customers or It is crucial for the printing factory.
Another reason may be the use of metallic inks. Metallic inks usually contain some metal particles and give the prints a metallic sheen. In addition, when the original design requirements for color exceed the range of color gamut that Huangpin Qinghuang can achieve, we can also use spot colors to supplement.
6. Convert the color to CMYK. When we convert the color of an image from RGB to CMYK, there are usually two ways to generate the halftone dots of the black ink, one is the under color removal (UCR) and the other is the gray component substitution (GCR). Which method you choose depends primarily on how much of the yellow, blue, green, and black inks will be printed in the image.
"Background removal" refers to the removal of a part of the three primary colors from yellow, magenta, and blue to form a neutral gray background, that is, the approximately black background formed by the three primary colors of the colorant, yellow, magenta, and blue, and replaced with black ink. . Background removal mainly affects the shadowed area of ​​the image, not the colored area. When the image is processed by the undercoat removal method, it is easy to have a color cast during the printing process.
The gray component substitution is similar to the under color removal, and the black ink is used instead of the gray formed by the color ink overprinting, but the difference is that the gray component substitution means that the gray component within the entire gradation range can be replaced with black. Therefore, when the gray component is replaced, the black version has a small amount of ink, and the image is mainly printed by the color ink. When the maximum replacement amount is used, the black version has the largest amount of ink, and the color version has a correspondingly reduced amount of ink. The image processed with the gray component replacement method is more stable in the printing process, but its effect depends to a large extent on the ability of the press operator to adjust the color.
7, professional terms. We think color is hard to describe, mainly because it is a kind of feeling, just like smell, taste and hearing. This feeling cannot be described in words. When we have to use words to describe colors, we often use vague vocabulary such as “dull,†“turbid,†“too warm,†or “too cold.â€
For example, what is the image is too warm? Is it said to be reddish, yellowish or magenta? Is that “too cold†mean that the image is too blue, too green or too green? We say that the image is too "flat" usually means that its contrast is not enough, and "turbid" consciousness is that the image's tone is too dark. The use of non-standard terms can lengthen the proofing period and delay the production progress of the job. Therefore, we must use professional terminology when talking about colors - this can save you a lot of time and money.
8. Printing is not an "exact match" process. What is replication? Replication is not exactly matching, but infinitely close. Printing is not an exact match, mainly because there are many color reproduction systems in the process of color reproduction. Photography is a typical color reproduction system, as is proofing and printing.
Premium Kitchen Knife: 5 Professional Knives set with case includes 8"Chef Knife, 8"Slicing Knife, 8"Bread Knife serrated , 5"Utility Knife, 3.5"Paring Knife. A specialized set of kitchen knives for all your chopping needs. A true cutlery organizer!
PROFESSIONAL QUALITY AT ITS BEST-Made from Superior high-Carbon stainless steel blades for precision and accuracy. Strong, durable bolster for perfect stability and control. Sharp, sturdy & practical. No rust, stains or pitting here!
A MULTI-PURPOSE KITCHEN MUST-Craft Knife Set Beautiful S/S&wooden& handles design to maximize durability and stress tolerance. Traditional Polymer handles are industrial strength. A perfect mix of design & practicality,not only under cabinet!
EASY CARE-All knives store safely in the Pakkawood Knife Block wood carving. (Please hand clean and don't use dish washer) This Knife Set with block is an essential for both professional and amateur cooks.
Kitchen Knife
Kitchen Knife,Ceramic Kitchen Knife,Non Stick Chef Knife,Stainless Steel Kitchen Knife
YANGJIANG TOALLWIN TRADING CO., LTD , https://www.kitchenknife.de