How to arrange printing color sequence

In color printing, how to reasonably arrange the color overprinting sequence is an important subject studied by process technicians. An important role of printing is to copy manuscripts artistically, which requires the printing workers to have a certain degree of artistic appreciation and master the ability to express color changes. Improper color sequence arrangement may cause the color deviation, color mixing and reverse overprinting of the printed matter; scientific color sequence arrangement will make the color of the printed matter more close to the original, and even strengthen a certain color atmosphere to make the level clear, the dots clear, and the overprint accurate. The colors are real, natural and harmonious.

There are three reasons why the color sequence needs to be arranged: the effect of ink overprinting and the shortcomings of the ink color itself, the quality of the paper, and the human's ability to recognize colors. The most fundamental reason is the incomplete transparency of the printing ink itself, that is, the hiding power of the ink itself. The post-printing ink has a certain covering effect on the first-printed ink layer, so that the color displayed by the printed matter always focuses on the latter color, or on the mixed color of the back color and the front color.

The starting point for choosing the color sequence is to flexibly arrange the color sequence according to the specific conditions of the original and the current process conditions, taking care of the main aspects (such as tone reproduction, color reproduction, graphic clarity, printing uniformity and printing repetition rate, etc.) .

The principle of arranging the color sequence in the following points is for reference of the peers.

1. Arrange the color sequence according to the content and characteristics of the original. Printing is a means to express the graphic design of the layout, and the emotional components reflected in each color are also different. Therefore, the arrangement of the color sequence must first consider the content and characteristics of the original. When designing graphic layouts, editors have often chosen the tone of layout colors. This tone represents the overall feeling of the entire hue and becomes the dominant color during printing. In terms of chromaticity, those based on red, orange, and yellow are called warm colors; those based on green and blue are called cool colors. Due to the hiding power of ink, black and cyan are printed first mainly in warm tone, and magenta and yellow are printed later in cold tone; Everyone hopes that the ripened watermelon crumbs are red, and they don't want to see the prints appear purple or green. Different color sequences have different color shift effects. Therefore, the colors that need to be enhanced in the color atmosphere of the picture can be printed in the last color.

2. Arrange the color sequence according to the transparency of the ink. Ink with good transparency, after the two colors are overprinted, the color of the lower ink layer can pass through the upper ink layer to achieve better subtractive color mixing and display the correct new color. If the yellow ink used is transparent yellow, the transparency order of the four inks is: yellow> magenta> cyan> black. Generally speaking, ink with poor transparency is printed first, and ink with good transparency is printed after.

3. Arrange the color sequence in favor of overprinting. Due to the objective defects such as paper deformation and expansion, we can arrange the main colors of the printing products with relatively high register requirements to be printed in two adjacent color groups. For example, the two-color machine can be printed in the same unit at one time to avoid paper stretching and other problems caused by the existence of paper. The large area of ​​the field can be arranged for post-printing to avoid problems such as smudging during paper handover. In addition, the single-color machine superimposes the second color after the first color is “dry”, while the multi-color machine is a “wet-press-wet” process, so the ink viscosity and the amount of ink should be controlled. That is, arrange the ink with high viscosity to print first, and the ink with low viscosity to print afterwards. This is very important, otherwise it will cause the disadvantage of reverse overprinting.

4. Consider the nature of the paper to arrange the color sequence. Poor quality paper, considering its low whiteness and smoothness, loose fibers, poor ink absorption, and easy to powder and fluff, can be printed with yellow ink to make up for the above defects of the paper. When printing at night, due to the recognition of the human eye, weak color inks with low lightness should not be arranged in the first color printing. The order of lightness of the ink is: white <yellow <orange <green <green <red <blue <purple.

5. Consider process factors such as plate making. When printing, the screen angles of adjacent two color groups differ by at least 30 °, which is beneficial to prevent color deviation and moire.

6. Consider the color sequence according to cost. Cheap black and cyan inks are printed first, and high-priced magenta and yellow inks are printed first.

Generally, a large-scale landscape-dominated picture (cold tone is the keynote), with black, magenta, cyan, and yellow as the color sequence. Arrange black printing first, and black is used to outline the outline, which is convenient for other colors to be overprinted. The transparent yellow final print can be used to adjust the brightness of the entire screen to form shiny, vivid colors. The picture (warm tone) generally dominated by characters adopts black, cyan, magenta, and yellow sequences. Ink with poor transparency is printed first and will not cover other colors. The magenta and yellow backprints make the character's face rosy, rich in color, and realistic in effect.

Color printing is a combination of technology and art. When we arrange the printing color sequence, we should properly consider it from an artistic perspective, which can make the printed matter more artistically appealing and meet the needs of readers.

Animal series keyrings, a variety of types, can be customized according to customer needs of different animal series keyrings. Its main materials are wool fabric and polypropylene cotton filler. There are four main types of plush fabrics. The first common yarn, made of BOA material, can be divided into light yarn, usually straight yarn, and can be divided into yin and Yang yarn in different directions. And matte gauze is matte color, basically without both yin and yang. The second kind of yarn is called special yarn. It has sheets and long short wool. The length of wool is controlled at 4-20 mm. The third kind is called wool, wool grows in the range of 20-120 mm, can do any wool growth in the range of 20-45 mm, more than 45 mm is only 65 mm and 120 mm, belongs to long hair, wool is straight, not easy to curl. The fourth type is curly hair, usually granular hair, wool or curly hair. Polypropylene cotton, commonly known as baby cotton, hollow cotton, also known as cotton, chemical fiber man-made materials polypropylene, polypropylene (a plastic optical density, special attention to polyester can not be confused) from the technological differences: mainly hollow fiber and two kinds, respectively: good elasticity of products, smooth feel. The Plush key chain produced by our company is beautiful and generous, durable, three-dimensional, bright and compact. Products can be made according to customer requirements of different specifications, colors, thickness, grade, packaging, etc. Marks can be customized, is a good choice for promotional gifts. Animal series Keyrings can not only decorate your life, but also highlight your nobility. What kind of Keychain a person uses, you can see his personality, life and hobbies, you can also see who can bring you good luck.

Major description:
1. Cloth ordering: in modern society, there is a clear division of labor, and manufacturers have their own responsibilities for the manufacturing of cloth and the production of doll products. Production problems tend to occur in non-factory processes. For this reason, it is particularly important for us to control the quality of materials. We strictly select several fixed material cooperative factories, which not only ensure the richness of material color, but also control the stability of material quality.
2. Making knife mold: the time required for making the knife mold of plush dolls is short, and it only takes a few hours from the start of making to the official use of the knife mold. Come on! Low price! Fashion! It has become an important factor for most companies to choose plush dolls as promotional gifts, conference gifts and event souvenirs.
3. Fabric opening: there are four ways to open the plush doll: punching machine, laser, electric shearing, and thermal shearing. Punch material opening needs to unfold the whole roll of cloth lamination first. The more layers there are, the lower the material opening cost will be. In the industry, generally, the 28 to 33 layers shall prevail. The factory will be subject to the 28 floor, in each process in strict accordance with the standard implementation to ensure the large cargo and sample effect of the anastomosis.
4. Electric embroidery and silk-screen printing: electric embroidery and silk-screen printing are the main presentation forms of logo or pattern on the customized figures; Silk-screen printing is a printing process, most of the cases are not necessarily electric embroidery looks high-grade. However, electrical embroidery cannot completely replace silk screen printing. For example, small and complex patterns or logo electrical embroidery cannot be realized. Only silk screen printing can show fine and clear patterns. For example, some parts of the requirements to make patterns at the same time to avoid the hardening of the parts affect the appearance (electrical embroidery will lead to the hardening of the parts), then also need to choose the process of electrical embroidery to show the logo or pattern. Of course, we don't have to worry about which process to choose to show our logo. We will provide professional solutions according to the actual situation.
5. Stitching and cutting: stitching is a process of stitching all cut pieces together, which is one of the most important processes in all processes. Whether the sewing process is strictly in accordance with the standardization will directly affect the smoothness of the appearance of the doll; Our factory has established strict sewing standards. A. Sewing seam 45 mm, uniform stop, needle spacing 12 inches. B. Fine needle with 11# needle and 402 fine thread. C. All point positions and bone positions must be aligned and shall not be exploded.
6, rolling cotton: cotton seems to be a simple process, in fact, is a very important process; Indeed, it is very easy to learn cotton, a new master as long as five minutes can learn to cotton. But it's not easy to do the simple job of making cotton well. Cotton is not only to cotton into the doll's shell inside, cotton also needs to be flushed evenly, to ensure that the finished product is a round full appearance. Simple things can be repeated to become an expert, to become a cotton expert needs at least three years to accumulate; And I plant all the cotton puncher is more than five or six years of experts.
7, sewing manual: sewing, manual, is the final process of plush toys finished products; Each doll in the cutting stitching stage will leave a position without stitching, the position is commonly known as leather or cotton left mouth position, as the name suggests is reserved for leather and cotton. And this position can only wait until the cotton is finished after the manual suture.
8. Product quality inspection: the product quality inspection is the last quality control link. After the product passes the quality inspection, it becomes the final product to be delivered to the customer. As a product quality inspector, I need not only the carefulness to find out product defects comprehensively, and the technology to repair defects, but more importantly, a sense of responsibility and a mindset that customers will not be satisfied if I am not satisfied.

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