A Survey of Digital Printing High Simulation Technology

One, digital printing high simulation goods sensation in Beijing

In July 2005, Beijing in mid-summer coincided with the intense heat and heat. People went to the Beijing Dongzhimenwai Happy Art Center, <Best of the National Palace Museum jointly organized by Beijing Shenghong Rainbow Plate Printing Co., Ltd. (hereinafter referred to as Shengcai Rainbow) and Beijing Yidingxuan Culture Company. The simulation art exhibition shows the coolness of classical culture on a hot summer day.

St. Rainbow uses advanced digital printing technology to realize the perfect reproduction of classical cultural gems. Many famous paintings are vividly reproduced in terms of size, texture, ink and color, and they make people feel like they are satisfied with the authenticity and pleasure of authentic works. . Mr. Xu Bangda, an expert in the appraisal of cultural relics, praised this batch of works as “very well printed, and it can be very real”.

Then in August at the inaugural "Couric Cup" digital print works grand prix, "The Forbidden City collection of books and paintings simulation" series of St. Rainbow was awarded the grand prize. The judges commented: This series of works is an organic combination of new materials (with coated rice paper and silk enamel) and new technology (digital inkjet technology HCC color management) in ancient calligraphy and painting reproduction, which has brought the simulation replication to a new level. Not only achieve "likeness", that is, the dry and wet shades of ink are displayed properly, the color arrangement corresponds to the matching of traditional Chinese paintings, and the texture of rice paper and silk is the same as the true traces, and it achieves the "likeness in words", maintaining the original charm and reflecting and reflecting the works. Connotation.

Immediately after the third Asian Printing Grand Prix unveiled in Bangkok, Thailand in November, the copy of "The Lotus Pictures of the Palace Museum High-Simulation Paintings" copied by St. Rainbow and the "Sheng Shangyi Oil Painting of the Oil Painting Emulation" were jointly obtained as inkjet digital printing products. Quality Gold Award. The judges commented: The level of digital printing simulation artwork is amazing.

The above series of activities have caused a stir in Beijing artists, collectors, art lovers, publishing and printing circles and news media. Mr. Yang Xin, former deputy dean of the Palace Museum and a famous cultural relics appraiser, believes that the first grade national cultural relics produced by the National Palace Museum are highly regarded by simulation technology and are sold in limited quantities. Therefore, the significance of art appreciation From the point of view of the appreciation of the preservation value of the collection, it is worthwhile to collect the replicas of the artworks of the Forbidden City. Nowadays, the high-level simulations of National Palace Paintings and Calligraphies of the National Palace Museum have attracted the attention of collectors and enthusiasts, and have become favorites.

As an old printing worker engaged in printing and copying for 58 years, I was thrilled to see these works of art with advanced digital printing technology to achieve high simulation reproduction. These artworks have fulfilled the ideals pursued by several generations of printers, enabling people to appreciate the treasures of paintings hidden deep in the Court for hundreds of years. Seeing authentic artworks is not only a great enjoyment of art appreciation, but also an opportunity to analyze the fine prints.

Second, a variety of simulation technology shines

In order to better simulate the reproduction of China's calligraphy and painting gems, several generations of print and copy workers have made arduous efforts to continuously explore, study and practice, adopt different printing processes, and use different printing materials for simulation copying, and in each history There are new developments and enhancements at the stage, which step by step approach the original effect. In fact, the modern digital high-simulation replication technology is inherited and developed in China's traditional simulation replication technology. E.g:

1. It was recently discovered in Jinan that the “Jurao” photographic plate that reflects the printing technology level more than 80 years ago was a relatively advanced technology at that time. It is based on a glass plate, coated on the glass plate a sensitized plate made of a sensitized adhesive made of heavy chrome salt and gelatin, and is made into a printing plate by close exposure (stencil printing) with a photographic film. The printing process technology is used for the printing of precious picture paintings and rubbings.

The distinctive features of the Feiluo printing are lifelike vividness, the ability to preserve the country's brush-ink charm, and a certain amount of printing. However, its plate-making technology is very demanding and it mainly relies on manual tracing. If there is no superb craftsmanship, it will be difficult to reproduce with high quality.

2. The woodblock watermark of Beijing Rongbaozhai is a unique traditional printing technology in China. It is a kind of tracing and copying of manuscripts, carving a number of sets of color plates on hardwood boards, overprinting with rice paper and water-soluble paints from version to version, and being able to realistically reproduce the original works. It is still loved by people today. However, due to manual operation, long production cycle, high cost, and difficult process technology, it can only be printed as a few fine prints.

3. With the advancement of technology, the use of offset printing technology to replicate, the advantage is that you can print in batches. For this reason, from the 1950s onwards, our country's printing workers constantly researched and practiced, making the copying of the national treasure paintings reach a high degree of simulation. E.g:

In 11959, Beijing Xinhua Printing Co., Ltd. celebrated the tenth anniversary of the founding of China, and printed a large-scale high-end album “China” as an innovative technology for the plant’s dedication. It used photo-separation and offset printing to print on Xuan paper and printed a妃 图 , , , , , , , , , , , , , , , , , , , ,.

The 21201 factory and the Chinese printing company all specially organize scientific and technological personnel to conduct research and production. Xuan paper simulation of Chinese painting using electronic color separation and offset printing technology has produced many paintings of the paintings of the Forbidden City and famous modern painters, which has increased the degree of simulation to a new level. Level.

3 Since the 1950s, the Shanghai Fine Arts Printing Factory has been researching and practicing the limited printing of the offset printing process of Xuan Paper simulation Chinese painting, and has successively produced more than one hundred kinds of masterpieces of “Shanghai Museum Collection Painting” and modern famous painters. Won the international gold medal. They printed on rice paper with a 3001pi high screen that was visually recognizable, maintaining the original charm. In the South, there was a chant of "printing Chinese paintings and going to the art factory."

In the 1980s, the Shenzhen Tianming Fine Arts Printing Company conducted in-depth research and produced a series of products of “Xuan Paper Chinese Painting Simulated Printing”, both from the improvement of process technology and from the degree of simulation. And they applied for a new concept and printed a new method on rice paper to apply for a patent and commercialized it and made a contribution.

5 At the same time, I must mention that Shenzhen Huaxin Plate Printing Co., Ltd., which uses rice paper to imitate Chinese paintings to achieve outstanding results, has copied many of its famous paintings with a high degree of simulation, and has been well received by artists and the printing industry. They make full use of a variety of shades of black and gray to represent the brushwork charm of Chinese paintings, and make full use of the three primary colors and the method of configuring spot colors to expand the color space range and make them correspond to the special colors of Chinese paintings, achieving the simulation of offset printing on rice paper. The new height of the copy.

6 In the field of copying of artificial artworks abroad, the Japanese Black Art Club is best known. The ancient replica of the offset printing technology developed by the company in cooperation with the Taipei Palace Museum reached a very high level and enjoyed a high reputation. Its characteristics: First, a special camera to the scene to shoot high-precision, high-quality, large-size color reversal film; Second, the use of special paper and silk cloth; Third, the use of computer plate, the use of 8-12 color spot color The color printing overprinted the printing plate; the fourth is the use of 3001pi high screen printing, which is consistent with the continuous adjustment feeling of the ink painting; the fifth is the 1:1 copy of the original size, and it is put together with the original to be true and false.

In summary, domestic and foreign printers have made unremitting efforts for the replication of high-simulation artworks. However, due to the limitations of process technology, they are technically difficult, the process is complicated, the production cycle is long, the cost is high, and some are not. The perfect place for further development and research.

Third, digital printing high simulation technology dominates

Modern high technology has increased the level of simulation and copying of national treasures and paintings in the collection of the National Palace Museum to an unprecedented level, so that a simple and quick method can be used to achieve a perfect reproduction of cultural treasures. Through high-fidelity products, more of the treasures of the Forbidden City have come out of the “deep” to meet the broad masses of people, further embodying his cultural values. At the same time, more people can get to know top art from a distance, learn more about Chinese traditional culture, improve the level of art appreciation and their own cultural tastes.

Sheng Rainbow creatively applied modern advanced digital inkjet high-fidelity replication national treasure level painting and calligraphy, made important contributions, gave us many new enlightenment and fresh experience in the promotion and application of this new technology. There are five major features:

1 using advanced input devices

The input is the first pass of the copy, and all the necessary information must be obtained from the original when scanning. For this purpose, Saint-Rainbow uses a large-format physical scanner from the company Cruuse, Germany, and scans the original with a maximum size of 1. 8mx lm and a maximum accuracy of 451dpi. This is a key technology for high-simulation copying. It can finely scan the original color gradation information and provide high-definition scanned image files for art reproduction, thus reducing the number of originals by reprinting the second original and scanning with the second original. Causes the loss of color hierarchy information.

2. Take advantage of digital inkjet technology

Use the Epson pro 9800 Digital Inkjet Printer. One is to use its advantages of FM network, its 1440dpi FM network can not see the network under the 10 times magnifying glass <the continuity of the tone is very similar to the printing effect of the Fei Luo printing. The second is the use of "Century Iris K 3 "8-color pigment ink, its color gamut is wide, the color space is larger than the color gamut of ancient paintings, and the color stability is good, it can reach 70 years and 80 years without fading. At the same time it has three-color black (black, light black, pale black) and Chinese painting ink match, especially the selection of thick black, density of up to 2.30, can fully display the concentration of coke-black printing on rice paper, and faint Black is conducive to the reproduction of light gray.

3. Develop polymer coating materials

One of the biggest difficulties in using digital inkjet printing technology for high-fidelity copying is how to print on rice paper, silk and canvas. There are two types of rice paper for painting, and Sheng Xuan is able to infiltrate the ink. It is suitable for thick pens; Neither has inkjet printability. If the coating is not subjected to special treatment, there will be ink diffusion, dot diffusion, poor resolution, and the density will not go up. In particular, the black ink has a low density and low color saturation and cannot be printed. Only through the special treatment of the coating, mastered the printability of rice paper and silk enamel, can we control the ink and shade of Chinese painting that ink-jet printing displays. Therefore, we must first break through the bottleneck of the material. The head of the scientific research leader of Shengcai Co., Ltd. Zhou Xiangli led the scientific research personnel to inquire a large amount of information, to find suitable materials and manufacturers throughout the country and overseas. After more than a year of trials and amendments to the coating formula, a major breakthrough was finally achieved. A polymer polymeric coating that meets ink jet printability was developed, and advanced nanotechnology was used to optimize the coating. The granularity ensures a higher contrast in printing density, wider color gamut and more saturated colors. There are three key technologies for coating materials:

(1) Coarse and fine degree of coating coating. The so-called nanotechnology refers to the technique of measuring the thickness of coating particles. It relates to the absorption of ink and the amount of water seepage and must reach a moderate absorption. Absorption is too much, color infiltration, resulting in low density, saturation is not enough; if the absorption is too little, the coloring is not strong, water resistance is not good, the ability of anti-ultraviolet radiation is poor ' After repeated studies and experiments, through nanotechnology, the most achieved Good particle fineness and absorbency.

(2) Anti-seizing and waterproof properties of the coating. Researchers use standard color scales, high-dose inks, and high-intensity UV lamps for lightfastness testing to achieve optimal lightfastness. And to make the coating waterproof and color