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In May, Heidelberg USA began supplying Saphira Thermoplate PL for the Speedmaster 74 DI. According to the company, the ThermoPlate PL is a new type of non-burning, rinse-free version with a design capacity of 20,000 impressions, which is suitable for the short-lived requirements of the 74DI printing. After electrochemical surface treatment and anodizing, the plate has excellent printing performance and latitude. Can be plated on an existing off-board thermal platemaking machine. We have used the Saphira version on ten 74DIs. We plan to add another 15 during the year. We are positioned in the short-to-medium version but can also be used for medium and long-run printing.
On Drupa 2O00, Kodak Polystar exhibited a Thermal No-process thermal plate-free version, which is a negative plate version on an external drum thermal plate maker or on an internal drum plate maker with a suction chip mechanism Implementation of digital plate making. This version has a print volume of 50,000 impressions, which reduces the amount of assist time due to the short time between adjusting the color and ink balance. No need for preheating, developing, gluing, or baking, and bright room operation.
Kodak PolyLight launched a thermal waterless offset printing plate in Germany, bringing the advantages of the thermal printing plate to waterless offset printing. According to Kodak Polystar, this version requires shorter auxiliary time than the traditional version, which can maintain continuous high-quality printing and high returns. The use of various thermal plate making mechanisms This type of user feedback is very good in terms of print quality under conditions of 200000 impressions.
At Graph Expo 2000, PDI exhibited Eclipe thermal CTP plates for sheetfed and web printing. The users are large and medium-sized printing factories. The time for making plates is two minutes and the quantity of printing is 500,000.
Presstek exhibited Anthem thermal, surface treatment, and anodic alumina plates for CTP at Drupa 2000. According to Presstek, this version uses a patented coating technique that burns images quickly, is easy to handle, free from flushing, and meets industrial cleaning standards. At 200 lines, the dot reproduction range is from 2% to 98%, with a good balance of ink and ink, and a wide range of fountain solution and ink. The print volume is 100,000 prints. The Anthem version is best suited for platemaking on Presstek's Dimension series CTP thermal platesetters, but since this version has a photosensitivity range of 800 to 1200 nm, most thermal platemakers with corresponding gas flow devices are also suitable. After the plate is made, it only needs to be rinsed with water. It does not require baking, gluing or developing.
Products on the market Here are some of the analog and digital plates available on the market.
CitiPlate offers a variety of UV plates. The Aqua LHP series has four silver-free UV versions with different sensitivities. It can be used in UV CTP platesetters and traditional Stenographs or Linkers. The exposure time of this plate is 90% faster than the standard (single photosensitizer) UV plate. Use standard rinsing methods with prints from 20,000 to 2 million impressions. For larger print requirements, you can choose baking or UV curing. Aqua LHP products include: Aqua S, Aqua M, and Aqua Plus. These prints for sheetfed and web printing have 125,000, 250,000, and 500,000 intaglio prints, respectively; The surface plate material Aqua Duplicator has a print of 50,000 impressions.
Fujifilm's pre-finish products include: double-sided FNC-B, short-print MG MultiGrain, double-sided FN-S for medium-volume high-quality sheet-fed commercial printing, for medium volume orders The FNS-R, a sheet-fed commercial printing machine, is suitable for the ultra-long version and FNX for web and UV printing. All of these analog plates have been specially surface treated to quickly reach a vacuum when exposed, and they can be developed in the same aqueous developer to reduce design costs.
Fuji's digital plate product line includes the Brillia LP-NS, a single-faced version that was put into production in 1996. It is exposed on a 488-nm argon ion or FD-YAG 532nm plate making machine and is suitable for short and medium-length printing. The Brillia LH-N1 single-sided plate is suitable for exposure on an 830nm infrared thermal platemaking machine for long-run printing; pre-plate or post-plate-baking enables printing of more than 10 million prints. Brdiia LH-P1 is also a single-sided infrared thermal plate, suitable for medium-volume printing and does not require baking. Both Brillia LH-N1 and LH-P1 were launched on the market in 1998.
At Graph Expo, Kodak Polystar exhibited the SDE2+, a double-sided, small-size ordinary negative edition. The size is 193/8×28 inches. The feature is a very smooth, rapid exposure, mixed coating with a 35,000 impression on one side. This product is completely commercialized.
At Drupa 2000, Kodak PolyWorks exhibited DirectPrint media for in-house printing and small commercial printing companies. It is characterized by low cost and harmless to the environment. This is a pre-coated photosensitive plate version on the plate, which can reduce the cost of flushing, discharge processing and maintenance of the flushing equipment. This product has not been fully commercialized.
Lastra USA from Italy offers a single-sided pre-coated sensitization chart. The print volume is 250,000 prints. According to the company, its high-contrast coating has excellent visibility after exposure washing. Its photosensitive layer is treated with an aqueous developer and is therefore harmless to the environment. In addition, diazo photopolymer technology is used. The company's Extrerma 2G second-generation positive thermal solution is suitable for use in 830nm infrared laser diode plate makers. Electrochemical surface treatment and anodized plates provide excellent ink balance.
The bimetal PDI offers a bimetal version that has a special copper layer. According to the company, this version is more lipophilic than ordinary polymers, which means that its surface is more ink-absorbent because it requires less water The ink balance is more accurate. The company's Citation bimetal negative version is suitable for long-run printing and is available in three grades. For standard A2 size plates, copper is first plated onto a surface-treated lead plate base and coated with a negative-coat photopolymer coating; when the photopolymer is removed, the copper layer is both resistant to printing and dot expansion. It is the smallest, because the color can be adjusted quickly, and ink and paper can be saved.
PDI's Prisma 830 thermal CTP plate maintains the advantages of the bimetal plate, and it also improves the printing rate, with more than 2 million prints. Another feature is that the CTP version and the traditional version can use the same flushing equipment and rinsing fluid; there is no need to pre-bake and rinse the plate; the curve can be adjusted without replacing the original file.
Thermal CTP products In addition to the new Anthem plate, Presstek continues to provide PearlDry's thermal CTP plate, which has a photosensitivity range of 800-1200nm and can be operated in bright room without flushing, gluing, and baking.
Westenern Lithotech offers the DiamondPlate family of products, including: LX+ for sheetfed and web printing; FX-10 for form printing; and GX-2 for double-sided printing. Laser series products include LA-5 using an argon ion laser; LV-5 using a YAG laser plate-making machine; and LT-2 using a thermal laser. LT-2 is a positive plate with a photosensitivity range of 1000 to 1200 nm. The company also offers LV-1, a photopolymerized version using blue-violet light; thermal-sensitive version LT-N with a wavelength of 830 nm.
Size of the Plate Market Manufacturers worldwide produce 320 million square meters of pre-coated metal plates with retail sales of $2 billion. For the three major manufacturers - Agfa, Fuji and Kodak Poly Lighting, 40% of annual sales revenue from the plate, chemical products and processors. More than 90% of the plates currently sold are negative and positive versions of the exposures using silver halide film, and digital plates or CTP and other plates are growing in double digits.
In-flight imaging CreoScitex's replaceable polymer approach eliminates the offset plate on the offset press and sprays a flowing layer of offset material onto each printing cylinder with special materials. The Creoscitex SquareSpot thermal imaging device then converts the coating into an image. The current print volume is 20,000 prints. After the printing is complete, wash the coating off to prepare for the next time. Creo holds a basic patent for this technology. CreoScitex is working with some of the leading printer manufacturers and media providers to transform this technology into a practical commercial product within two years.
New digital offset printing plate (below)
On-machine or off-machine plate making Thermolite is a rinse-free version that can print 20,000 to 30,000 printed sheets. On-board or off-machine platemaking, light room operation. Using non-burning plate technology, grinding and anodic alumina plate base, up to 200 lines, a greater latitude. Due to the use of phase change technology, Thermolite does not require any vacuum adsorption equipment or any treatment. On the press, the ink roller took away the image layer on the Thermolite plate and quickly transferred to the previous sheets. Thermolite does not contaminate the fountain solution or the ink system, and the operator does not need to wipe or make any adjustments.