The hottest stereo printing technology reproduces

2022-10-19
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Stereoscopic printing process: reproduce three-dimensional color (Part 2)

III. Market Prospect of stereoscopic printing

stereoscopic printing is a new kind of special printing, which has broad development prospects. Now, in addition to conventional paper and plastic materials, it is also beginning to shine in other aspects

1. Three dimensional animation printing

printing three-dimensional animation, three-dimensional photography and printing main Jinan new era Gold Testing Instrument Co., Ltd. more technical knowledge is in our manufacturer. Welcome to consult if you put six kinds of images together in a unit of grating transparent film; In the case of animation, there are mainly two images, rarely three images. After using cylindrical mirror grating film in animation printing, we can not only get three-dimensional pictures, but also get moving animation by changing the picture angle. We know that the right eye and the left eye observe different pixel lines, and through the combination of hundreds of different pixel lines under the corrugated transparent sheet, due to the different viewing angles of the two eyes, we can get the stereo image of the whole picture. In addition, the observed picture can obtain a three-dimensional sense when viewed from any angle. 1, 2, 3... Pixel lines can be stored under each corrugated unit of the corrugated transparent sheet. When the position of the left and right eyes moves, the pixel lines 1 and 2, 2 and 3, 3 and 4... Are combined in pairs, so that they can be seen continuously after being magnified through the transparent sheet. In the case of animation, the texture of the corrugated transparent sheet forms a horizontal position, and the two eyes observe the pixel lines 1, 2, 3... Together. There are 18 pixel lines in each column mirror unit with a grid distance of 0.6mm, and then the animation is made according to the printing method. It can also be said that pasting an original picture (equivalent to 18 consecutive sides of the film) into a photo, placing a grating transparent film horizontally on it, and shaking it from front to back is equivalent to the action picture that the film can show in one second. In addition, there is also an animation that makes different changes in several parts on the same picture. When making this dynamic three-dimensional picture, we must first prepare a distinctive animated photo, which is made of 18 film pictures overlapped in turn. Use this photo as the original, add a concave convex thin transparent plastic plate in front of the photographic plate of the camera, and then place a one inch size 300 line screen in front of this plastic plate at an appropriate distance. Then, the reflected light of the photo passes through the screen and plastic plate to the photosensitive sheet, that is, a photographic negative composed of continuous images decomposed by pixels is made. With this plate making and printing, a dynamic picture can be made. However, this picture is very blurred when viewed in this way, and the contour line of the image cannot be seen clearly. The localization rate of high-speed rail and bullet trains must be higher and higher on both sides, and transparent cylindrical lenses must be added to achieve the purpose of direct viewing with the naked eye. If the printed three-dimensional print is called three-dimensional space print, and then the dynamic factors are added to combine the three-dimensional sense with animation, a new four-dimensional space print can be produced

2. Printing three-dimensional patterns on fabrics

printing graphics and texts on textiles has always followed the traditional plane printing process. Printing technicians can print anything imaginable, but designers can only design plane objects. Although the foaming ink can print some three-dimensional effects by automatically controlling the experimental force, displacement and deformation in various modes, the foaming degree is difficult to control, so it is difficult to accurately copy the fine levels of the image when printing. Recently, in the United States, a research group developed a new printing ink for T-shirt silk, with an ink layer thickness of 600 μ M above, at the same time, the bulge of the ink layer can be effectively controlled. Compared with the previous situation, the thickest ink layer of ordinary printing is usually the ink layer of metal decorative ink printed on transfer paper. It is reported that at present, the ink layer thickness on flat and non porous substrate materials with good inking performance can only reach 250 at most μ m。 However, the ink layer thickness is not the most prominent feature of three-dimensional printing of fabrics. The most striking thing is its high resolution and clarity. Three dimensional printing can make the edge of the ink layer very clear and smooth, and it looks like it has been die-cutting or laser engraving. Unlike the transfer printing of high hiding ink, Sweatshirt printing and plastic ink printing, the ink film of three-dimensional printing tends to have thin edges. No matter how high the definition of the template is, the printed image is easy to get dirty; Unlike foaming ink, although it can print a very thick ink layer, the edges are not clear and regular after curing. The three-dimensional printed matter is clear and clean. The characteristic of three-dimensional image printing is not only the use of a different ink or emulsion. Successful three-dimensional printing needs to master different operating procedures from ordinary printing. Although it is not very difficult compared with standard printing procedures, it is very different, and it must be well combined with many integrated systems, so that three-dimensional printing can have a new and huge impact

Jung industrial Symposium

in addition, three-dimensional printing is also widely used in the printing of manufacturing and casting industry. For example, the three-dimensional printing (3DP) process developed by emanual Sachs, Massachusetts Institute of technology, has been widely used in the manufacturing of ceramic shells and cores for casting. 3DP process uses powder materials, such as ceramic powder and metal powder. Material powder through the nozzle, the cross-section of the part is printed on the material powder with an adhesive (such as silica gel) to form a three-dimensional image. After post-treatment, the adhesive is burned first, and then infiltrated into the metal at high temperature to densify the parts and improve the strength. In addition, stereoscopic printing also began to show special effects in the printing of commodity packaging, decoration materials and various cards. It can be expected that with the development of science and technology and the continuous improvement of stereo printing technology, equipment and materials, stereo printing will bloom in many fields

source: Global Industry

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