(New Ink Technology and DI Presses Boost Environmental Status of Waterless Printing)
Introduction: The development of ink technology for waterless printing and the development of waterless direct imaging presses will promote the rise of waterless printing, while also broadening the future prospects for waterless printing.
New inkless printing has always advocated eliminating the emission of volatile organic components (VOC), the main component of the fountain solution in the printing shop. For this reason, Sun Chemicals has invented a new type of ink technology, DriLith W2, which enables printing shops The internal volatile organic content is almost zero. The performance of Drilith W2 is similar to that of other waterless offset inks. In contrast, it has some more outstanding features. The most important point is that the ink can be washed with water (this ink is soluble in water). Traditional solvent-based cleaning blankets and printer cleaners emit a large amount of volatile organic components (VOCs), while cleaning Drilith W2 inks have 93% water and 7% non-toxic surfactants in their cleaning agent components. Agent. Obviously, this alone can allow more printers to use waterless printing, especially in areas where the government strictly controls the amount of volatile VOCs. To a certain extent, this may change the slow development of the previous waterless printing and bring about a rapid expansion.
Dick Drong, Marketing Manager of sheet-fed printing inks at Sun Chemicals, said that the ink can be washed with water, its performance and optical characteristics can be compared with the current waterless ink products, and the ink can be printed more than traditional Offset inks have a higher density. Its drying speed is very fast, and its gloss is by no means inferior to standard waterless ink. Compared with the traditional waterless ink, its abrasion resistance within 5 minutes is better than that of conventional ink within 24 hours. In addition, even if the ink stays on the printing machine for a day or night, it will not crust, and it can even be up to 48 hours without skinning.
Drilith W2 inks use a temperature range similar to that of traditional anhydrous inks, and they perform better at higher temperatures. According to Drong, experiments have shown that under certain conditions, increased printing temperatures can result in reduced coloration, which may be advantageous for printers who cannot control the printing temperature and use waterless printing equipment.
L&E ​​Packaging is a printer of printed clothing labels and merchandise descriptions in Northern California. They are very demanding in color. Since 1992, they have used waterless printing to produce. Now they use Drilith W2 inks. Amos Communications of Ohio is also a pilot unit of Drilith w2 ink.
Another water-soluble ink formulation is the Instant Dry W2, which has been used on Heidelberg's Quickmaster DI Speedmaster Direct Imaging Press. This product was developed by Sun Chemicals in cooperation with Heidelberg. It is very different from Drilith W2. It can adapt to the high pressure characteristics and performance requirements of Quickmaster DI sheetfed presses.
Sun Chemicals (Europe) Co., Ltd., in partnership with Karat Digital Press Manufacturers, has developed a new type of water-free ink to meet the requirements of the 74 Karat press. The formulation of this ink contains a certain amount of additives necessary for resins, pigments, oils, and other inks, mainly to make the rheology and other performance characteristics of the ink suitable for the needs of digital integrated waterless offset presses.
Direct imaging presses People's attention to direct imaging presses is not accidental. The demand for cheap, high-quality, on-demand short-run print jobs has prompted the rapid development of fast-printing, high-resolution, fully automatic direct-to-press technology. According to surveys, in the United States, nearly half of all commercial prints are under 10,000 impressions, which clearly defines the market position of DI presses: 500 to 10,000 copies—filling the gap between fast toner printing equipment and conventional offset printing. Between the vacancies.
At Drupa, more than a dozen direct imaging presses were launched, half of which were GTO-DI types developed by Heidelberg and Presstek in 1991.
Today, every digital press in the world uses Pressek's PEARLdry media, and the imaging system for this printing plate is either integrated on digital presses or uses licensed technology.
The following is a brief introduction of the current or forthcoming waterless DI printers:
Heidelberg Quickmaster DI 46-4 takes only 15 minutes from pre-press debugging to the completion of 500 prints, including changing colors, cleaning, and correcting colors. The ink supply system consists of 12 cooled ink zones. Each color in the image is completed by 16 laser diodes. Presstek's polyester thermal PEARLdry version is automatically plated by an internal plate cylinder.
The Adast 705C DI has four pages and each color consists of 32 lasers with a resolution of 1016 to 2540 dpi. This printer is available in four-color and five-color models. In addition to its standard and perfect printing capabilities, it also has a liquid coater. Aluminum-based PEARLdry plates can be easily mounted on the press. Typical prepress preparation, including imaging, upper plate, upper paper, ink, plate cleaning, ink level adjustment, color registration, and color correction, do not add up to 20 minutes.
74 Karat Karat Digital Press' four-page presses use CreoScitex thermal laser diodes to directly image the aluminum PEARLdry version on the press. The imaging system includes two optical imaging heads, one on each plate cylinder and each optical imaging head has 40 diodes with an imaging resolution ranging from 1524 dpi to 3556 dpi. The entire prepress preparation process only takes about 18 minutes. One of the unique features of the 74Karat press is a keyless ink system that produces a continuous ink density.
DocuColor 400 DI This machine was developed in cooperation with Presstek and Xerox. It is a fully automated 2-page direct imaging waterless printer, which is said to print 12,000 prints per hour. There are four color and five color models, the resolution range is between 1270--2540dpi. In general, the total prepress preparation time is less than 10 minutes. The patented internal roller can hold 36 sheets of Presstek PEARLdry Plus® plates, allowing 5 plates to be imaged simultaneously in less than 20 seconds. The press uses Presstek's ProFireTM laser imaging technology, which is the fourth generation of Presstek's DI technology since the birth of GTO-DI. ProFire is the first time at last year's Drupa show that it is a single, modular thermal laser imaging device that can perform many tasks such as direct plate making, direct proofing, and direct imaging within the printing system. Laser diodes can be used 8 designs, 16 bundles, 32 bundles, 48 ​​bundles or 64 bundles. The imaging system consists of three main parts: a FirePowerTM laser diode system consisting of four laser diodes and a fast laser driver; an integrated motion system for positioning the laser; a FireStationTM digital controller and data containing a high-speed connection to Firewire server.
Ryobi 3404 DI: This product is a 2-page, 4-color, fully automatic offset press that uses the ProFire imaging system. It uses only two DI imagers and is imaged on two double plate cylinders. A three-fold version of the central impression cylinder fixes the paper to complete the entire printing process. After the paper is rotated on the cylinder for two weeks, it is taken away by the take-up system. Although the press was rotated at 14,000 inches per hour, its printing speed was set at 1500-7000 iph. The presses were imaged directly on the PEARLdry version. Surprisingly, the third sheet was genuine (a very small number of sheets), and Ryobi had already delivered the 3404 DI in December 2000.
Akiyama J print DI This compact one-color multi-color printer is the DI version of Akiyama's J-Print press, jointly developed by Presstek and Akiyama. The model targets the book printing market and is expected to debut this year.
With the advancement of ink technology and the emergence of direct printing presses and the publication of this year's U.S. Patent Office on waterless printing plate technology, the prospect of waterless printing in 2001 is very bright.
Introduction: The development of ink technology for waterless printing and the development of waterless direct imaging presses will promote the rise of waterless printing, while also broadening the future prospects for waterless printing.
New inkless printing has always advocated eliminating the emission of volatile organic components (VOC), the main component of the fountain solution in the printing shop. For this reason, Sun Chemicals has invented a new type of ink technology, DriLith W2, which enables printing shops The internal volatile organic content is almost zero. The performance of Drilith W2 is similar to that of other waterless offset inks. In contrast, it has some more outstanding features. The most important point is that the ink can be washed with water (this ink is soluble in water). Traditional solvent-based cleaning blankets and printer cleaners emit a large amount of volatile organic components (VOCs), while cleaning Drilith W2 inks have 93% water and 7% non-toxic surfactants in their cleaning agent components. Agent. Obviously, this alone can allow more printers to use waterless printing, especially in areas where the government strictly controls the amount of volatile VOCs. To a certain extent, this may change the slow development of the previous waterless printing and bring about a rapid expansion.
Dick Drong, Marketing Manager of sheet-fed printing inks at Sun Chemicals, said that the ink can be washed with water, its performance and optical characteristics can be compared with the current waterless ink products, and the ink can be printed more than traditional Offset inks have a higher density. Its drying speed is very fast, and its gloss is by no means inferior to standard waterless ink. Compared with the traditional waterless ink, its abrasion resistance within 5 minutes is better than that of conventional ink within 24 hours. In addition, even if the ink stays on the printing machine for a day or night, it will not crust, and it can even be up to 48 hours without skinning.
Drilith W2 inks use a temperature range similar to that of traditional anhydrous inks, and they perform better at higher temperatures. According to Drong, experiments have shown that under certain conditions, increased printing temperatures can result in reduced coloration, which may be advantageous for printers who cannot control the printing temperature and use waterless printing equipment.
L&E ​​Packaging is a printer of printed clothing labels and merchandise descriptions in Northern California. They are very demanding in color. Since 1992, they have used waterless printing to produce. Now they use Drilith W2 inks. Amos Communications of Ohio is also a pilot unit of Drilith w2 ink.
Another water-soluble ink formulation is the Instant Dry W2, which has been used on Heidelberg's Quickmaster DI Speedmaster Direct Imaging Press. This product was developed by Sun Chemicals in cooperation with Heidelberg. It is very different from Drilith W2. It can adapt to the high pressure characteristics and performance requirements of Quickmaster DI sheetfed presses.
Sun Chemicals (Europe) Co., Ltd., in partnership with Karat Digital Press Manufacturers, has developed a new type of water-free ink to meet the requirements of the 74 Karat press. The formulation of this ink contains a certain amount of additives necessary for resins, pigments, oils, and other inks, mainly to make the rheology and other performance characteristics of the ink suitable for the needs of digital integrated waterless offset presses.
Direct imaging presses People's attention to direct imaging presses is not accidental. The demand for cheap, high-quality, on-demand short-run print jobs has prompted the rapid development of fast-printing, high-resolution, fully automatic direct-to-press technology. According to surveys, in the United States, nearly half of all commercial prints are under 10,000 impressions, which clearly defines the market position of DI presses: 500 to 10,000 copies—filling the gap between fast toner printing equipment and conventional offset printing. Between the vacancies.
At Drupa, more than a dozen direct imaging presses were launched, half of which were GTO-DI types developed by Heidelberg and Presstek in 1991.
Today, every digital press in the world uses Pressek's PEARLdry media, and the imaging system for this printing plate is either integrated on digital presses or uses licensed technology.
The following is a brief introduction of the current or forthcoming waterless DI printers:
Heidelberg Quickmaster DI 46-4 takes only 15 minutes from pre-press debugging to the completion of 500 prints, including changing colors, cleaning, and correcting colors. The ink supply system consists of 12 cooled ink zones. Each color in the image is completed by 16 laser diodes. Presstek's polyester thermal PEARLdry version is automatically plated by an internal plate cylinder.
The Adast 705C DI has four pages and each color consists of 32 lasers with a resolution of 1016 to 2540 dpi. This printer is available in four-color and five-color models. In addition to its standard and perfect printing capabilities, it also has a liquid coater. Aluminum-based PEARLdry plates can be easily mounted on the press. Typical prepress preparation, including imaging, upper plate, upper paper, ink, plate cleaning, ink level adjustment, color registration, and color correction, do not add up to 20 minutes.
74 Karat Karat Digital Press' four-page presses use CreoScitex thermal laser diodes to directly image the aluminum PEARLdry version on the press. The imaging system includes two optical imaging heads, one on each plate cylinder and each optical imaging head has 40 diodes with an imaging resolution ranging from 1524 dpi to 3556 dpi. The entire prepress preparation process only takes about 18 minutes. One of the unique features of the 74Karat press is a keyless ink system that produces a continuous ink density.
DocuColor 400 DI This machine was developed in cooperation with Presstek and Xerox. It is a fully automated 2-page direct imaging waterless printer, which is said to print 12,000 prints per hour. There are four color and five color models, the resolution range is between 1270--2540dpi. In general, the total prepress preparation time is less than 10 minutes. The patented internal roller can hold 36 sheets of Presstek PEARLdry Plus® plates, allowing 5 plates to be imaged simultaneously in less than 20 seconds. The press uses Presstek's ProFireTM laser imaging technology, which is the fourth generation of Presstek's DI technology since the birth of GTO-DI. ProFire is the first time at last year's Drupa show that it is a single, modular thermal laser imaging device that can perform many tasks such as direct plate making, direct proofing, and direct imaging within the printing system. Laser diodes can be used 8 designs, 16 bundles, 32 bundles, 48 ​​bundles or 64 bundles. The imaging system consists of three main parts: a FirePowerTM laser diode system consisting of four laser diodes and a fast laser driver; an integrated motion system for positioning the laser; a FireStationTM digital controller and data containing a high-speed connection to Firewire server.
Ryobi 3404 DI: This product is a 2-page, 4-color, fully automatic offset press that uses the ProFire imaging system. It uses only two DI imagers and is imaged on two double plate cylinders. A three-fold version of the central impression cylinder fixes the paper to complete the entire printing process. After the paper is rotated on the cylinder for two weeks, it is taken away by the take-up system. Although the press was rotated at 14,000 inches per hour, its printing speed was set at 1500-7000 iph. The presses were imaged directly on the PEARLdry version. Surprisingly, the third sheet was genuine (a very small number of sheets), and Ryobi had already delivered the 3404 DI in December 2000.
Akiyama J print DI This compact one-color multi-color printer is the DI version of Akiyama's J-Print press, jointly developed by Presstek and Akiyama. The model targets the book printing market and is expected to debut this year.
With the advancement of ink technology and the emergence of direct printing presses and the publication of this year's U.S. Patent Office on waterless printing plate technology, the prospect of waterless printing in 2001 is very bright.
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