How can color aberration be reduced in printing?

During the printing process, it is necessary to maintain the balance of water and ink, and let go of the plate paper when stopping halfway.

The whiteness of the paper increases. Reduce grayscale.

There are many ways to prevent kraft paper color cast, but there are also many places that need to be paid attention to, such as the design and color selection of the manuscript, can not display the color of the pin or printer to require the printing color, the design should be compared with the professional color spectrum, and the CMYK value of the color spectrum is used to define the color, and the RGB mold can not be used to dismantle the virtual loss color. Important colors need to be printed with colors.

Some colors themselves are very easy to cause color casts, and this color should not be used as much as possible, such as dark green, dark purple, coffee, and other four-color superimposed colors. Do not use RGB colors or multi-color overlays when printing text, as it may lead to blurring of the text.

It is normal for there to be a color difference between the design draft and the printed matter.

It is required that before the proofing is issued, there must be a signature of the customer. By comparing both parties, these errors can be reduced or eliminated to a great extent. In this regard, it is recommended that when printing some important printed materials, this information will be marked at the back for reference only, and the company does not assume any responsibility for errors in printed materials, so as to eliminate joint and several liability caused by typographical errors.

When dispensing the film, it should strive to form it at one time and minimize the patch. Of course, the garbled characters or font changes that occur due to font replacement when the film is released can be avoided if the relevant personnel are serious and responsible.

Chromatic aberration, generally there will be, the range of chromatic aberration includes 2 situations: 1 is the chromatic aberration of the display, 2 is the chromatic aberration of printing, if the chromatic difference in these 2 is very large, you can imagine how big the range of chromatic aberration is. In addition: many printing machines themselves are of poor quality, if the printing plant in order to save costs to use cheap ink, as well as irregular paper, color difference is unavoidable, in other words, color difference is not your problem, and the range of color difference is very wide, can not be avoided, generally in the printing industry to stipulate that the color difference is 3%.

Let's talk about how to reduce chromatic aberration:

1. In the process of using color, individuals should understand what the color should look like in practice, so they must know it in their own hearts, and try to use less masks in PS in the production of manuscripts, because masks are easy to cause color differences in reality. There is also the purity of the color, we all know that printing is four-color printing, in some colors are brighter or more pure, it is recommended not to use 4 colors, for example, I usually, when it is not necessary, the K color value is 0, for example, a little darker can be appropriate M or C value according to the situation, black K = 100 is often used in text.

2. What is particularly important is the choice of machine, the gap between imported machines and domestic machines is very large, so there are certain colors that should be avoided on domestic machines as much as possible, such as brown. This color is difficult to grasp on the domestic machine, (because the printing machine is artificially operated, some of the captain's personal identification color ability and we are still different, in the so-called he thinks it looks good, we don't think, this is difficult to avoid, if the customer requirements are relatively high, it is recommended that you stare at the machine printing, so that the color you can grasp here, because the color in the printing can still be slightly adjusted).

3. There is also the choice of paper yards, the degree of ink absorption is different for different paper materials, so there is a difference in printing the same design draft on different papers, such as the common Ou Xue paper. His ink absorption ability is relatively strong, and it is a rough surface, so the color of the printing is gray, while the copper paper, the surface is smooth and the color is good, so the color is printed brighter.

All of the above can cause color difference, you have to see where the problem occurs, the color difference of the Mac machine is small, I also use the PC assembly machine, the color difference will be there when printed, and I will also have the color difference when I use the Mac machine, so there will be color difference between the physical and virtual manuscripts, but we only pursue to reduce the color difference to the minimum.

Suggestion: often browse more printing knowledge on the Internet, in fact, this thing is very related to their own experience, no matter what kind of machine printing, as long as you understand in your heart that this color value is printed in the domestic machine and imported machine, what degree can be reached, it is OK, now the Internet is very complete, such as light gray about what is the color value and so on, and so on, when you have enough experience, you can grasp these color differences, I hope to help you, because I typed word by word, I will talk about how much first, I wish you a gradual growth.

If the color difference is too large it must not be accepted, if the color difference is not obvious, it may be able to persuade the customer not to return, the paper version of the thing, put it for a long time will fade, change color, and need to re-send the sample when producing again, in the printing industry, it is generally necessary to use the color card, use the international standard color number to color, colorimetry, color matching, so that the error rate will be a little lower, in addition to worrying about the color difference, the high requirements can be selected to a color light box, colorimeter and other high-end color instruments to detect, monitor.

Why are you so worried? What we can do, what we can say is clear, some people just don't understand, from our professional point of view, this is a matter of loss, and the result is infinitely magnified in them, grabbing a little tail and holding on. There are still very few such people, no matter how flexible they are, they don't have to care about the problem of not being offended, and they will love it in the future!

Any time the same picture is printed, the effect will not be the same! I am speechless when I encounter this kind of customer. That's what I've met today

There will definitely be color difference that is the same paper in different batches will have a slight difference, and it is quite real to see in strong light. And in terms of thickness, different brands of paper of the same style will be slightly different, especially the very light yellow is very easy to appear color difference, but it will not affect the use. However, there is generally no error when cutting business cards.

In the future, if it is indicated in advance to the customer, it should be indicated in the contract that there is a tolerance of 5% error.

There will definitely be this color difference, there will be color difference on the front and back of the same box of business cards, there is no way to solve it, according to the color system said by the landlord, it is normal to print light yellow or light white, this customer is too demanding, give up.

y4 gives too little, and the combination cannot be less than 10

About the color difference mainly depends on the combined printing or special printing, if it is the combined printing, see what color Dagong is based on the color chasing, if chasing the K value, the whole page color K value will be high, the normal error range is 25%; The special edition is printed with the color of the main body, and the error range is 15%. Customers don't understand we have also encountered, most of us will express clearly before, or sign a contract before, meet a surprisingly high demand for customers, we will recommend to go to the digital fast printing shop, encounter can't explain, don't know how to pretend to understand, we really can't help!

Personal Summary! Don't ask me how I know! It's all tears! Their family has handled the problem of color difference very well, and you can ask if you need to print!

Such customers don't want to make it clear that they are to pick thorns, I also do printing, some customers are quite good and reasonable, some just want to save a few money, the above said that the color difference of 10 percent is not visible, damn I don't understand the size of the cut, now is the wave knife can not guarantee that there is no error, because the knife is very advanced, but it is in the operation of the color difference imposition printing no way. The paper is not easily changed by the printing house, and even if it is replaced, it will not be obvious. I often do loss-making business, but now I don't want to do it and want to do something else, because we basically can't control the quality, I can't do it, I used to run a printing press.

It means that the technology of your printing plant is not up to par, the error of 1mm is actually very abnormal, and the color is actually 10% error and is basically invisible to the naked eye.

If that's what you're talking about, then it's the guest who is in trouble with you.