About the printing in China

book printing is the use of plates or other means to transfer the graphic information on the original to the substrate by technology. Printing, in fact, is a color synthesis process. The yellow, magenta, cyan, black four kinds of dots superimposed on a piece of paper, forming a color pattern.

Several common color printing include CMYK, Pan tone color and RGB.
CMYK is a subtractive color mode that relies on reflective color modes. It is the basis of four-color printing, so when we finally output the work, we would turn the image into CMYK mode.
Pantone color refers to the printing, not by printing C, M, Y, K four-color synthesis of this color, but with a special ink to print the color.
RGB is the color that represents the red, green and blue channels. This standard includes almost all the colors that human eyesight can perceive, is one of the most widely used color systems.
Printing standard can not be the computer (RGB mode)color, better reference to digital proofing(CMYK mode). So, when the customers confirmed the renderings, our colleagues will make spray painting draft, to check and then make a sample .
Whatever choose hardcover book printing, softcover book printing in china, hardcover book printing in china, catalogue printing in china, children’s book printing in china, some clients don’t know how to choose the book color, we can recommend the most suitable specifications to our clients.
chinaprintingexport.com provide book printing services, including book printing, children's book printing, hardcover book printing, catalogue printing and more printing service. 
We have competitive price, high-quality book printing, eco-friendly printing material and professional sales team service on you. 
Please contact us if you needs any book printing service, of course we will get back to you asap!

How to deal with the color saturation of book printing in China

1.Depth the basic primary colors.
1)Make all kinds of solid color blocks, such as red, green, blue and other colors of the header words and logos, and the depth of the basic colors that do not require layers. General, book printing was required strong and bright colors for the words and logos by customers. In theory, it is to give full play to the maximum solid density of the offset printing ink to achieve the maximum saturation.
2)The blue sky, ocean, green leaves, lawn and other colors in landscape photography images, because in people’s minds has formed a fixed concept. Therefore, in principle, the color amount of C version should be darker on the basis of the required color amount of the hue when color processing, and green leaves, lawns and other greens are also in Y version, *** the green saturated and vivid. For the basic colors of red, green, and blue that require gradation, according to the color cast and gray characteristics of general offset printing inks, the optimal saturation configuration is:
　　Red=M95%+Y85%
　　Green=Y95%+C85%
　　Blue=C95%+M80%

2. Deep basic color keeps gradation
1) The dot gradation range of the deep basic color is 65% to 90%. Since the dots above 80% increase more, the levels are easy to merge. Therefore, the basic color of the level is needed for this area. The level should be maintained under the premise that the density of the field is sufficient, and the saturation of the field density cannot be emphasized, resulting in the level of the basic color.
The depth of the basic color that needs to be layered, the focus is to moderately reduce the color volume of more than 80% of the area, so that it is separated from the solid color block, so that the book printing in China can not only print the solid density, but also maintain the gradation.
2)The hierarchical texture in the deep basic colors is mainly represented by the main color plate, such as warm colors such as red and orange: it is represented by the Y and M color plates; the cool colors such as green and cyan are represented by the C color plate. Therefore, the layered texture of the main color version must be emphasized, and the characteristics of the layered texture of the real object must be vividly displayed.
3)The basic color of the mid-tone area is sufficient. In the mid-tone area, the dot tone value ranges from 35% to 65%, which is the main part of most objects and the key area for color processing. To adjust the basic color of this area to the best saturation, the key is to deepen it by about 5% on the basis of the required color volume of the hue. For example, safflower, the light and mid-tone M color requires a color volume of 40%. It can be deepened to 45% to make the red more saturated and vivid.

China Printing Export have advanced book printing machines,high quality standard paper material, promptly&professional sales team, fast and stable delivery service, reasonable printing price. Our rich export experience meet your custom book printing requirements very well. Our goal is to keep long term business with every clients. If you have any printing inquiry, don't hesitate to contact us by email at sales@chinaprintingexport.com

Firstly, how to calculate the spine of books printing?
1.Spine and cover dimensions
Cover size = inside page + spine + bleeding line.
For example, inside page size, standard 32 open size, width x height =140mmx203mm, spine 4mm, bleeding line perimeter set to 3mm.
So the final size: width =140*2+4+3*2=290mm, height =203+3*2=209mm.

2.Spine calculation method
Spine thickness = (P ÷2)×0.001346 × grams of paper
P number refers to the total number of pages, a piece of paper =2P, there are 32 pieces of paper made by the main, so it is 64P, the beginning of the use of 80g of paper.
Finally, the spine thickness was calculated to be 3.44576mm. Of course, there was no rounding.

Secondly, how to choose the binding way?
1.Softcover books binding
There have saddle stitched, spiral binding, perfect binding and perfect binding with sewn. The perfect binding with sewn are the most common ways which use for those more than 64pages books printing. It’s more securely and cost is more competitive.

2.Hardcover books binding
It is known by several names: case bound, hardback, sewn hardcover binding and bound book. A hardcover book has many advantages, customers can choose the cover in different materials according to their preference, such as cloth cover, leather cover, cloth and paer combined cover etc.  

No matter what kind of binding way book printing method, you need to hand it over to a professional Chinese printing company. They will choose the best book printing method for you, and provide you with a reasonable offer with high quality book printing service in China.
Chinaprintingexport.com is your reliable book printing company. We have many years of printing experience, excellent printing equipment and factories, and a professional sales team stand by.
Since 1999, with competitive prices and good printing quality, we have won the trust of many buyers around the world and become a professional export printing company in China.

What are the details that affect hardcover book printing price and quality? For the hardcover book printing in China, details are the most important factor to determine the quality of printing, as well as the measurement index of hardcover book printing price. If you want high quality printing effect, you must grasp the printing skills in the process of printing.
In hardcover book printing in China, ink is the most important factor, if you control the ink color, how to grasp the good concentration, how to control the good fineness, are matters that should be paid attention to in printing. These three are closely related, once the problem of one side, the other two sides will also be affected, such as the high fineness of the ink, the natural concentration will be high, so that the outlets of hardcover book printing will be clear, and look very full and rich. In the process of printing also want to control the flow of ink, to maintain the speed of adaptation. Such ability can make the finished product that print comes out more fluent and even, also won't appear the phenomenon of different depth.

In addition, in the water of printing is also very important, to control its ph value, if the acid is too strong, it will reduce the printing plate, and too weak, it is easy to make the layout appear blurred. Once the operator finds that the ph value is not between 3.8 and 4.6, it must be adjusted according to the specific requirements, so as to ensure the quality of printed products.

The above is the hardcover book printing in some subtle details, but far more than the above, if you can not grasp the details, then the hardcover book can not be printed to express the effect, will also make the hardcover book advertising effectiveness greatly reduced.

Chinaprintingexport.com on printing and packaging for many years, is a set of pre-press, printing, after printing one-stop printing service enterprises.The company has a professional design team, imported printing equipment, provide a full range of customized services.

How to avoid the large areas of single black K100 problem in book printing.

For book printing in China, the large area single black K100 problem will appear if you don’t pay attention.
China Printing Export will introduce to you how to solve this problem from the professional book printing company in China

For monochrome (spot color) printing:
You can print twice, but if there is a shallow net in pure black, it will be 50-70% on the original basis.
For example, the shallow screen is k60, so if it is printed twice, it should be adjusted to k35. It is best to have a standard proof for the printer to adjust.
The printed single black, that is, the effect of k100 printing is not very satisfactory, because the printer rubber-equipment reasons, this is a common problem.

For Black in four color printing:
It is recommended to add c30~40, but you can add more.
The large black color block that came out of Garland was brighter and smoother from the side.

Change the color value to C30 K100 when hardcover book printing, just c100 m100 y100 k100 is not blacker?
Don’t do that! It can't be printed at all!!!
Because the adsorption capacity of paper for ink is at most 300. It means the sum of the four values of cmyk cannot exceed 300.

Printing paper selection: 
Use high-quality parper in book printing when you are printing large areas of black.
Because good paper is not so dusty when it is printed, otherwise it is easy to dirty the plate. If the printer is careless, there will be a lot of dirty spots in the print.

The choice of printing fonts and lines: 
If you use anti-white characters when printing large areas of black, do not use too small fonts, and do not use fonts with thin strokes.
Otherwise, the printing will be blurred, especially for larger plates such as folio plates.
In the same way, the above principles also apply to the white lines, the white lines should not be too thin, otherwise the printing will be blurred.

Overprint about 40% of cyan on the large black solid part.
When using the four-color printing process, in order to ensure the correct restoration of the gradation and color, the thickness of the ink layer of each color should be strictly controlled. Usually in four-color printing, the black solid density does not exceed 1.8. Printing a large area of black solid with this density will lack a solid visual effect.

Add a little bit cyan in Black when printing.
Black solid overprint a small amount of cyan in printing. From the hue, it is still black, but the visual effect will be thicker.
Originally, when only one color of black was printed on white paper, many reasons can cause white sand holes appeared on the black solid ground, and the black and white contrast was very conspicuous.
If a cyan flat screen is overprinted, it will expose cyan dots. The contrast between black and blue is less conspicuous, and the black background color can look more uniform and beautiful.

You need to choose a reliable book printing company whatever which cover materials you want to used. A professional printing company in China, they will provide provide high quality printed products, promptly sales team and reasonable printing price for you such as chinaprintingexport.com. You can determine the specialization of a printing company through above information and get your reasonable book printing online quote.