It is more suitable for novices to print the basic knowledge of printing
Printing is an ancient and important art and craft that is used in all walks of life. For novice or novice printers, understanding the basics of printing is the first step to get started. Printing basics include the history and development of printing, common printing techniques, printing materials and tools, and common printing terms. What Li Qiu Yuan shares with you here is the second issue about the basics of printing.
1. Overprinting
Overprint printing is a printing method that achieves complex color effects and patterns by superimposing multiple colors or images on the same sheet. Overprint printing can be achieved by overlaying different plates or by using color mixing techniques. In overprint printing, each layer of color or image needs to be printed with a separate plate. During each printing process, the printer adds another layer of color or image in place, gradually superimposing it to create the final effect. By precisely aligning and controlling color gradations, you can create colorful patterns and details.
Overprint printing is often used to produce complex illustrations, patterns, posters, albums, magazine covers, and other prints that require multiple colors or layers. It can achieve rich color transitions, gradients, and blending effects to make prints artistic and appealing.
2. Overprinting
Overprinting is a printing method in which multiple printing colors are overprinted layer by layer on paper to create a desired pattern or image. In overprint printing, each layer is printed using a separate plate or color ink. During the printing process, each color layer is printed in the appropriate position, and the upper layer of color will cover or pass through the lower layer of color, gradually superimposing to form the desired effect. By controlling the order in which the printed colors and layers are overlayed, a wide variety of colors and image effects can be achieved.
Overprint printing is often used to create color prints such as books, magazines, posters, brochures, and packaging boxes. It enables rich color variations, shading adjustments, and detailed expressions. Overprinting printing can also use special inks and printing techniques, such as metallic inks, fluorescent inks, luminescent inks, etc., to enhance the visual effect.
3. Die-cutting
Traditional die-cutting is a cutting process for post-processing of printed matter, and the die-cutting process can make the printed matter or other paper products into a die-cutting knife plate according to the pre-designed graphics for cutting, so that the shape of the printed matter is no longer limited to straight edges and right angles. The traditional die-cutting production is a die-cutting process in which the die-cutting knife is combined into a die-cutting plate according to the pattern required by the product design, and the printed matter or other plate-like blanks are rolled and cut into the required shape or cut under the action of pressure. The indentation process is to use a crimping knife or a crimping die to press out the line marks on the sheet through the action of pressure, or use the rolling wheel to roll out the line marks on the sheet, so that the sheet can be bent and formed according to the predetermined position.
4. Bleeding
In printing, bleed refers to a situation where an image or design extends beyond the final trim size at the edge of the print. The so-called trim size refers to the size of the final print after cutting. The bleeding is to ensure that the print does not leave any white edges or unprinted areas after trimming. Due to factors such as how the printing press works, it is difficult to extend the color to the area outside the trim line. Therefore, designers usually need to extend the background or image to the area outside the trim line when making printed documents, usually adding a certain bleed area on the basis of the trim size, and the common bleed size is usually 3mm or 5mm.
5. Proofing
Proofing refers to the process of printing and producing the negative film made by photographic method or electronic color separation machine and properly trimmed, and printed into a proof or using other methods to display the plate-making effect before printing. The purpose is to confirm that the setup, handling and operation in the printing production process are correct, and to provide customers with samples of the final print, which is not required to be exactly the same as the final print in terms of visual effect and quality. Proofing can be roughly divided into three methods, namely, proofing machine proofing, (toner) simple proofing, and digital proofing. Proofing, that is, a small amount of trial printing of printed matter, is the process of printing map samples separately according to the specified colors of each color printing plate through the proofing machine.
6. Post-press processing
Post-press processing refers to a series of processing and processing processes carried out after the printing of printed matter. It is carried out to further enhance the quality and functionality of printed matter. Post-press processing includes many different techniques and methods, such as folding, perfect binding, hot stamping, lamination, embossing, etc