Analysis of the main points of post-press processing of digital printing
Analysis of the main points of post-press processing of digital printing A few years ago, digital printing was still a new thing, and there was still a long way to go before commercial production. The quality of digital printing and the requirements of people did have a large gap, and the production efficiency was also very low. However, the speed of change and development of digital printing in recent years has completely exceeded people's imagination. Today, the production efficiency of digital printing has been greatly improved, and the range of printing materials is getting wider and wider. The printing quality and effects of some printed materials have to be amazing. Digital printing has indeed become the most attractive printing method. However, from the perspective of binding and post-press processing, there are still some problems that cannot be ignored in the post-press processing of digital printing. This article attempts to explore the post-press processing methods of digital printing in order to provide readers with some reference. The main points of binding and post-press processing: 1. Fold Because the ink color material on the digital print only adheres to the surface of the paper, the folding process is prone to breakage. Therefore, it is better to press the crease before folding. 2. Laminating Laminating the surface of digital prints, especially after printing a large area, and then laminating, will help protect the printed matter in post-press processing, especially when cutting or packaging . It is not necessarily advantageous to apply a single-sided coating to a double-sided printed product, because the uncoated side may be more prone to peeling of the printing color due to friction in subsequent processing. 3. Saddle stitch Saddle stitching is a good choice for most digital prints, especially suitable for the binding of thin books such as guides, brochures and brochures. The binding method is economical and practical, and can be carried out online with other processing methods. It can perform post-press processing of collation, folding, binding and online cutting at the same time, which can provide guarantee for the fast delivery required by digital printing. 4. Flat book When designing a flat booklet, first of all, pay attention to leave enough room for binding between the staple and the text. For example, when the hole ratio of the O-spiral is 3: 1 (referring to 3 holes per inch), you should Leave at least 3/8 inch blank; and when the line-to-hole ratio is 2: 1, at least 1/2 inch blank should be left. This blank space refers to the distance between the stitching edge and the nearest line hole edge. In order to clarify the specific position of the bookbinding process, it is best for the designer to understand the changes of the actual printing paper after the digital printing before the digital printing process, which is especially important for digital prints. Most computer design programs do not consider small changes in paper thickness after printing. In digital printing, the color material printed on the paper surface will cause the thickness of the printed sheet to change. When binding dozens of digital printed sheets, the cumulative thickness The changes may make the binding size carefully calculated by the computer meaningless. Therefore, it is necessary to grasp the sample change parameters of the actual production paper after digital printing in order to accurately measure the thickness of the book during the printing design and ensure that the post-press processing obtains a suitable binding size. 5. Wireless glue binding Similar to the wireless binding process of offset printing, the wireless binding of digital prints should also consider the amount of binding. In addition to leaving a 1 / 8-inch milling back margin on the back of the book, a 1 / 8-inch cutting volume should also be reserved on the other three sides of the book. In addition, a 1 / 4-inch glue area should be left at the bottom of the book cover to prevent glue from seeping into the next book during binding. The wireless glue binding process also requires that the printed bleeding cover should be a little larger than the text size. 6.Wireless glue binding hardcover Believe it or not, wireless glue binding hardcover processing is also an important post-press processing method in digital printing and binding. The key to the hardcover process is how to firmly bond the book block to the hard book case to produce a book that can be stored for a long time. Although the cost and time spent in wireless binding and binding hardcover seem to be somewhat unequal to digital printing for the short-term printing market, some post-press binding companies have prefabricated different colors, different styles and different commonly used digital hardcover The size of the hardcover book case is for digital printers to choose. Therefore, wireless adhesive binding hardcover has also become a commonly used binding method for digital printing. Integrated post-press processing solution The quality and speed of digital printing make it more eye-catching and become one of the increasingly widely used printing methods, and most digital prints almost need to be processed after printing to become a practical printed product, and most post-printing The processing technology can be applied to the post-press processing of digital printing. At present, the main post-press processing equipment for digital printing include folding machines, double-loop and plastic loop binding machines, wireless glue binding machines, saddle stitching staplers and collating machines. Among them, folding machine, wireless glue binding machine, saddle stitch stapler can be divided into floor type and desktop, but usually saddle stitch stapler are floor type. There are two types of collating machines, vertical and horizontal. With the explosive development of digital printing, manufacturers equipped with post-processing equipment for digital printing are increasingly active, such as Heidelberg, Mailer Martini, MBO, MBM, Baum, Duplo, Spiel Associates, Standard Finishiing, CPBourg, Southwest Plastic Companies such as Binding, James Burn International, Powis Parker, Rosback, GBR, Brackett, GBC, Best Graphics, Riso and AbDick. It should be clearly pointed out that not all printers or post-press processors can control the post-press processing of digital printing. If the company has extensive knowledge of digital printing, understands the particularity of digital printing, and has a variety of post-press processing equipment, with strong production and processing capabilities and rich post-press processing experience, then the post-press processing of digital printing is It is no longer a difficult job. Face Mist Spray,Nano Facial Mister,Face Mist Spray Use,Mist Sprayer For Face Foshan Liqia Hardware Products Co., Ltd. , https://www.liqiahardware.com