A three-dimensional effect poster, a beautiful postcard, and a creative design will attract you to stop and watch. Now what we are talking about is related to this, and it also attracts you. It is the three-dimensional printing that is popular nowadays and the customer demand is constantly rising.
Stereo printing is a special printing technology that prints an image on the back of the grating material, and the grating material itself gives the image a three-dimensional effect. The naked eye can directly observe the three-dimensional stereoscopic image on the two-dimensional plane image. The technical content of the three-dimensional printing is very high, the publicity effect is very good, and it can bring higher added value for the owner of this technology.
The concept of "three-dimensional" comes from the special materials used in printing. The clean optical plastic is extruded into a thin sheet, and there are a series of gratings with the same structural parameters and sizes on the surface of the sheet. According to different applications, the grating can be distributed on the surface of the sheet at a frequency of 10-200 lines / inch. The thickness of the grating sheet is generally 0.008-0.385 inches. The back of the sheet is smooth and can be used as the printing surface. This unique structure can present many fantasy effects, and the image can be printed on the back of the grating material with high resolution. As the viewing angle changes, the left and right eyes of the person can be viewed from different angles, forming a visual difference between the two eyes, and the various images formed are reflected in the brain to produce a sense of distance and three-dimensionality.
It is understood that the earliest three-dimensional project originated in the late 1920s. In 1692, the French painter GA Bois Clair used a three-dimensional method for the first time to divide two or more pictures into "stripes", and then arranged vertically at the same frequency as the observer walked past them , You will feel the change between the pictures. From the end of the 18th century to the beginning of the 20th century, this method was gradually popularized. Until the 1960s, the three-dimensional effect began to attract market attention. According to the history of three-dimensional development written by David E. Roberts, on February 25, 1964, "Look" magazine used a postcard-sized "visual panorama" for the first time, and batch printing of three-dimensional images became reality, and there were more than 8 million Copies are hot. "Look" magazine immediately launched a color stereoscopic image on April 7, 1964.
Prepress
In order to make the three-dimensional printing project progress smoothly, it is necessary for the printer to work harder in the prepress process. Here it is recommended to find a technician who is quite experienced in stereo image processing. He will teach you a lot of skills, such as the background of the image should be simple, avoid the situation of red with green, blue with yellow, black with white, avoid using The vertical or horizontal lines should be changed slightly.
There are currently many softwares on the market that process stereoscopic images. Some software can be downloaded for free on the Internet, and some software requires payment. "Some advanced options in the software can make the raster and the printed image reach a perfect match." The stereoscopic printing software manufacturers that you are familiar with include HumanEyes and Photo Illusion. HumanEyes recently introduced its PrintPro 2.0 3D stereoscopic software solution and software innovation product Creative3D. Creative3D is a three-dimensional three-dimensional design tool that can be used for personalized three-dimensional design. Photo Illusion can also provide similar software.
device
During the production process, printers need to use software for pre-press processing, and there must be enough computer space to store the final large amount of data files. In addition, the accuracy of the prepress and printing equipment must also be very high. The printer can use either a sheet-fed offset press (if it has UV function, it is more suitable for three-dimensional printing) or a digital offset press. For example, KBA Genius 52 UV printer has a maximum printing area of ​​360mm × 520mm and a maximum printing speed of 8000 sheets / hour. The machine has a wide selection of printing materials (0.06-0.8mm). Due to the use of waterless offset printing technology, the preparation time is greatly shortened and the printing quality is improved.
KBA Rapida 205 Sheetfed Offset Press
Mallard, Illinois is a printing company that combines offset printing and digital printing. It has purchased a Genius 52 UV printing machine for three-dimensional printing. Company president Bob Gay commented: "This machine greatly shortens the printing preparation time, and it is very convenient to change plates and register. We can also use 370 lines / inch high resolution printing, greatly improving the effect of three-dimensional printing. Since the company can adopt a more time-sensitive method for proofing, we can provide three-dimensional proofing documents for other printers, which has become our new business. "
material
In addition to printing equipment, printing also requires special grating materials, and different sizes need to be used for different occasions. For example: 70 lines / inch, 75 lines / inch, 80 lines / inch, 100 lines / inch grating is the most popular, suitable for the production of small and medium-sized images such as postcards, business cards, etc .; 60 lines / inch, 62 lines / inch The grating is suitable for close-up observation of small and medium-sized images or large-format images with an observation distance of 0.3-3m; the 40-line / inch grating is developed for indoor applications, and can also be applied to printed materials with a size of more than four to two. The three-dimensional effect is very ideal; the 20-line / inch grating is developed for outdoor large-scale advertising, and can also be applied to indoor advertising products. The three-dimensional effect is also very ideal, with an observation distance of 1.5-6m.
Training
Not long ago, at the 5-day three-dimensional printing technology seminar held at KBA headquarters, KBA three-dimensional printing experts and Genius 52 UV printer users were gathered. In addition, users can also seek help and suggestions for 3D printing from other channels.
In October 2004, KBA and other companies co-founded Lenstar.org, an organization that serves designers, advertising agencies, brand owners, and their printing groups. Through this innovative group, users can get help on three-dimensional printing, and there are free books on three-dimensional printing on their website.
Another training channel is a platform that provides trading services and 3D printing software. The website provides a variety of methods for producing three-dimensional images, the value of these images and the equipment required to produce these images.
Opportunities and Challenges
Recommend 3D printing services to customers is an opportunity for printers. The markets covered by 3D printing include packaging, POP display racks, art posters, and large-format printing. They are also applied to business cards, bulletin boards, mouse pads, posters, stamps, and cups. Emerging applications include labels and heating. Molded decoration, etc. Three-dimensional printing makes printers stand out from the fierce market competition.
On the other hand, printers can also benefit from 3D printing. Los Angeles Lithographix is ​​a high-end commercial printing company. In the summer of 2006, it produced the largest three-dimensional printing poster with a size of 50 inches by 80 inches, which was processed by KBA Rapida 205 printing machine. The printed content is a poster of the movie "Spider-Man II" produced by Sony Corporation. This poster describes Spider-Man flying over the city through a net. Due to the use of a three-dimensional effect, Spider-Man's right arm seems to have been extended Poster, this poster produced 350 using stereo printing technology. After this incident, Lithographix's interest in three-dimensional printing increased greatly. George Wolden, vice president of the company, said: "We are preparing to produce the 'VLFX' product on the Rapida 205 printing press. We are currently making posters for the new balanced tennis shoes. The poster size of the new balanced tennis shoes is 47 inches by 65 inches. Of tennis shoes have a three-dimensional effect, which is very powerful. In the future, we will also produce large-format three-dimensional body advertisements. "
Although three-dimensional printing combines multiple auras, three-dimensional printing is not a simple technology. Compared with plastic printing, it is more complicated and difficult, and pre-press processing requires more elaboration. In fact, three-dimensional printing has some similarities with plastic printing. In an uncontrollable environment, plastics will shrink or swell. In addition, the absorption of inks for plastics is very poor. After printing inks, the inks will not penetrate into the plastic and will only stay on its surface. Therefore, except for UV printing or other drying methods, the printing speed is very slow. Many 3D printing experts believe that using UV curing makes 3D printing easier.
For 3D printers, another challenge is time. Generally speaking, three-dimensional printing takes longer than traditional printing. It takes 3-10 working days from pre-press to printing to the final presentation of three-dimensional effect, which depends largely on the additional processing time, and Time for proofing and proofing again.
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