Our plates are processed using water wash technology with no harsh chemicals. Quick guide: Degrease the metal plate. Both plates had image relief of 30 to 35 mils. ~�qF���O � /��V�8Uh��{��vc�L���d� o��|�E7_�.�� ����g锦M5|�!�t��ԣsDV�D�c~`�Κ��˅�Bqho��l'����(� The emulsion was added to a Flex-Light® 30"×40" rotary brush, plate processor or similar equipment. Expose to UV The perchloroethylene--butanol mixture required 6 minutes face exposure to produce an equivalent plate quality. Helfen Sie globalen Kunden einfach Photopolymerplatte Machen Ausrüstungen zu beziehen. It is apparent that many modifications and variations of this invention as hereinabove set forth may be made without departing from the spirit and scope thereof. 2. Home / Shop / Photopolymer Plates / Steel-backed Photopolymer / KM73 Intaglio plates. This permits repeated use of the solvent without the need for distillation to remove uncured photopolymer. Apply a thin layer of photopolymer emulsion with a roller. h�bbd```b``�`2D2�l� R0D2���i`�L��w����ֵl�9��j�,{@�H0;H2��b�r�H!f �_ۓ� ��`700R������@� �f Again plate quality was equivalent to that obtained with perchloroethylene at a higher exposure time. Photopolymer plates based on a block copolymer of styrene and isoprene were again processed as in Example 1 with this solvent. We appreciate all of things which can think by our customer. We leverage unique Asahi-developed materials to engineer plates that improve Overall Equipment Efficiency (OEE), … 4,517,279 discloses a photosensitive composition containing a high molecular weight butadiene acrylonitrile copolymer which contains carboxyl groups, and a high molecular weight butadiene/acrylonitrile copolymer which does not contain carboxyl groups, combined with ethylenically unsaturated monomer and a free radical generating system. Furthermore, many of the solvents used to develop the plates are toxic or suspected carcinogenic materials. This procedure provides a safe alternative to traditional photo intaglio printing. The following was added to a clean Flex-Light®30"×40" plate processor and recirculated for 10 minutes: 5 Kg OT-100 (dioctyl sodium sulfocuccinate). Photopolymer plates based on a terpolymer of butadiene, acrylonitrile, and acrylic acid were processed as in Example 1 with this solvent. That being said, you will normally need to expose Open the lid of the exposure unit and li up the glass platen. The total processing capacity of this solution was also greater than that of the perchloroethylene - butanol mixture. However, plate quality was again assessed and found to be equivalent to the first 12"×15"×0.112" plate washed. Plates are here! Once a normal exposure time is determined, then adjustments are made for problem images like fine detail (for which exposure is increased) or for solids or reverses (for which exposre is decreased). Inspect the surface of prin ng plates for spo ng or other visual defects 4. We’re a greener alternative! During 1960s and 1970s, all the major companies in the field were also trying to develop photopolymer-based solid flexographic plates. This allowed extended use of the solution because the spontaneous polymer separation prevented a build up of photopolymer, permitting continued use of the solution; up to approximately 200-300 square feet of plate area could be processed without distillation. & Terms of Use. Because of this exposures equivalent to those required for perchloroethylenebutanol mixture processing, were necessary to hold 0.004" lines and 3%, 150 line half tones. Plates made from these compositions are processable by organic solvents including aliphatic esters such as ethyl acetate, aliphatic ketones such as acetone, methyl ethyl ketone or halogentated organic solvents such as methylene chloride, Freon® and blends of such solvents. Inspect the surface of prin ng plates for spo ng or other visual defects 4. These terpene-based solvents may be substituted for the synthetic hydrocarbon or halogenated hydrocarbon solvents presently used for processing photopolymer printing plates. After standing for several hours the polymer could easily be removed from the solution with a wire screen. Photopolymer plates based on a terpolymer of butadiene, acrylonitrile, and acrylic acid were processed as in Example 1 with this solvent. Bayfol ® HX 200 is a light-sensitive, self-developing photopolymer film which can be used to produce phase holograms in the form of volume reflection and volume transmission holograms.. Bayfol ® HX 200 can be recorded with appropriate laser light within the visible spectral wavelength range from 440 nm to 680 nm. Wash time for these plates had to be varied from 2 minutes for plates washed at the beginning of the test to 6 minutes at the end of the test. No phasing of this washout solution was observed. UV LED technology may be the most established emerging technology today. endstream endobj startxref Where the light hits the plate, the plate is exposed and hardened. The image (a positive on transparent paper or film) is transferred to the plate … In either case, during the development step the solvent can be applied in any convenient manner such as by pouring, immersing, spraying, or roller application. Once excited, both homolytic cleavage and dissociation of a counter anion takes place, generating a cationic radical (R), an aryl radical (R') and an unaltered counter anion (X). 8. Flexography (often abbreviated to flexo) is a form of printing process which utilizes a flexible relief plate. Main points Dermatitis is common in printing. USE OF BENZYL ALCOHOL AS A NON-SOLVENT. VSPA Alcohol Developing Photopolymer; VSPL Laser Engravable Polymer Material ; Processed Photopolymer Plates; VSPW Water Developing; Laser Engravabl Polymer; Laser Engravable Coated Material - This is a magnetic-coated material that can be Laser Etched using a Fiber or CO2 laser to a depth of .025mm deep and produces runs of about 15,000 cycles. This is why most printers opt to procure their photopolymer printing plates from trade shops. Plate quality was again assessed and found to be the same as with the first plate. Photopolymer plates based on a block copolymer of styrene and isoprene were processed as in Example 1, using both this solvent and the perchloroethylene-butanol mixture as a control. Dimensions: 100 x 200 mm. 1,358,062 discloses photosensitive compositions consisting of a nitrile rubber with an addition photopolymerizable tri- or tetra-unsaturated ester derived from acrylic or methacrylic acid combined with an addition polymerization initiator activatable by actinic radiation. Brushing, which aids in the removal of the unpolymerized or uncrosslinked portions of the composition, can also be performed to facilitate the plate processing. Plate Size ... KM73 plates are exposed through a film positive where the printed image appears the same as the original drawing. 0,3mm thick (only a support), the photopolymer layer (appr. After standing for several hours the polymer could easily be removed from the solution with a wire screen. Inkcups offers six different types of photopolymer plates for pad printing. Photopolymer plate “HR Nylon” type red, for developing with Alcohol. We’re a greener alternative! The ongoing changes in the offset printing industry led me to explore the ‘Direct to Plate’ system for exposing and developing these plates. It is important to remove the wash out solvent from the plate prior to drying because any solvent retained on the plate after processing will increase plate swelling and distortion upon oven drying. The solvents, which may be terpenes alone, terpenes mixed with organic non-solvents, or terpenes emulsified with water are effective in developing a wide variety of photopolymer printing plates and can produce images superior to those obtained with commercially available solvents currently used in such applications. Half as thick (.017" ) as the KM83 plates Photopolymer film on aluminium plates. 430/325, 430/331, JOHN J. WASATONIC, PATENT DEPARTMENT (LEXINGTON, MA, US), Click for automatic bibliography Photopolymer plates based on a block copolymer of butadiene and acrylonitrile were again processed as in Example 1 using this solvent. Additionally, these solvents have fairly low volatilities which reduces worker exposure during the plate processing. Specialists, such as PlateCrafters are able to take advantage of all 3 phases of the latest plate technologies. Thus, there exists real need for solvent systems which can be used with a higher degree of safety. The following was added to a clean Flex-Light® 30"×40" plate processor and recirculated for 10 minutes: Photopolymer plates based on a block copolymer of styrene and isoprene were again processed as in Example 1 with this solvent. Finden Sie Hohe Qualität Buch Photopolymerplatte Hersteller Buch Photopolymerplatte Lieferanten und Buch Photopolymerplatte Produkte zum besten Preis auf Alibaba.com The solvents are also useful with polyamide type photopolymer plates which are normally processed in alcohol or water alone. Photopolymer. Wash time for this type plate in this solution was 18 minutes. Tokyo, Japan & Brussels, Belgium, November 12, 2020. If necessary, for a quick stop, first spray with a little vinegar. The steam distillation process is also safer than conventional hydrocarbon solvent distillation. Jet Photopolymer Plate Maker ** Runs on 240v power ** This is a complete photopolymer plate maker, developing water based photopolymer plates for printing. Again the plate quality was superior to that obtained with perchloroethylene under equivalent conditions. preheating, rinsing, developing, etc. Useful classes of emulsifiers for forming emulsions of these terpene class solvents with water include sulfosuccinates, in particular sodium dioctyl sulfosuccinate (Aerosol OT-100); polyethylene glycol p-isooctylphenyl ethers (Triton X-100); and polyethylene glycol mono(nonylphenyl) ethers (Triton N-57). Again the plate quality was superior that obtained with perchloroethylene-butanol. The plate surface is the only area that comes into contact with the substrate after the ink is applied to the plate. Achieve superb results that hitherto were only achievable in offset or gravure. 4. This additional non-solvent, which can be the same as or different from the one in the blend, will promote spontaneous flocculation and separation of the uncured photopolymer from the blend. The process is clean, easy and safe to use. In fact, this property can be exploited by adding additional non-solvent to the blended terpene/non-solvent system. An additional feature of the terpene-based solvents is the ability of terpenes to form emulsions with water. This invention provides solvents for use in the processing of photopolymer printing plates which can be used with a wide variety of photopolymeric materials. It’s a logarithmic scale, so for each step you need to move up, you raise your exposure 1.5 times if I remember correctly. This allowed extended use of the washout solution because the spontaneous polymer separation prevented an excessive build up of photopolymer, allowing continued use of the solution; up to approximately 200-300 square feet of plate area could be processed without distillation. After rinsing the plate was placed in a forced air drying oven at 150° F. for 1 hour. The organization’s three pronged working reasoning is detailed on with parameters of development, quality item and worldwide reach. These compositions can be utilized to produce printing plates which can be developed by an array of aliphatic and aromatic solvents including methyl ethyl ketone, toluene, xylene, carbon tetrachloride, trichlorethane, methyl chloroform, and tetrachloroethylene. Process and apparatus for developing photopolymer plates. Again plate quality was equivalent to that obtained with perchloroethylene at a higher exposure time. (c) a non-solvent for said uncured photopolymer; and. Cut the film to size allowing a small margin all around the plate. Photopolymer jetting (commonly known as PolyJet technology) developed by Israel-based company “Objet Geometries Ltd.,” was later merged with “Stratasys” (a well-known leading manufacturer of 3D printers) in 2012. To process, put plate in tray and cover with water. Strip off the first protective layer. A photopolymer plate consists of three layers; the steel backing plate, of appr. U.S. Pat. Flexo Photopolymer Plate Making Machine; For Waterwash flexo Plate Making Equipment; Model : C-A2SSF / C-A3SSF / C-A4SSF / C-2430 / C-3040) Plates suitable : Label, film, paper, corrugated board, paper carton,  bag, Tetra pak etc. KM73 Intaglio plates $ 11.75 – $ 672.00. Finden Sie Hohe Qualität Heißer Verkauf Ps Platte Entwicklung Entwicklung Hersteller Heißer Verkauf Ps Platte Entwicklung Entwicklung Lieferanten und Heißer Verkauf Ps Platte Entwicklung Entwicklung Produkte zum besten Preis auf Alibaba.com It was also noticed that after approximately 15 to 25 square feet of plate was processed, the emulsion tended to form two phases when allowed to stand for longer than 5 minutes without the recirculation pump of the wash unit running. The plate was subsequently washed in the wash unit with the above formulated solution for four minutes. This allowed extended use of the washout solution because the spontaneous polymer separation prevented a build up of photopolymer, permitting continued use of the solution; up to approximately 200-300 square feet of plate area could be processed without distillation. DEVELOPING PRINTING PLATES FOR GARMENT TAG PRINTING FILM EXPOSURE The First Exposure: 1. This composition, which has use as a flexographic printing plate, requires processing by a tetrachloroethylene solvent in blends of tetrachloroethylene and a non solvent. Remove the protec ve cover sheet from photopolymer plates 3. But, those practicing it were dependent upon using the Epson printer driver which has a very ordered dither. to start, you develop a sense of timing after doing this a while. Proven Plate Processing. In January 2018, Cone Editions began to develop a process of photogravure using non-toxic photopolymer plates instead of the dichromate sensitized carbon tissue and copper. The proposed mechanism for cationic photopolymerization begins with the photoexcitation of the initiator. developing and washing photopolymer plates and forms in an enclosed unit. 0430233 - EP90122838B1 - EPO Application Nov 29, 1990 - Publication Apr 22, 1998 Katsumasa Yamamoto Kyoichi Mizuno Kosaku Onodera Keizo Kawahara Masaru Nanpei. Plate exposure times equivalent to those required for perchloroethylene-butanol washed plates were necessary to hold 0.004" lines and 3%, 150 line half tones with this wash solvent. Additionally, since terpenes can be emulsified with water, the solvent system can be an aqueous emulsion to permit a water rinsable system. Technical Specifications Plate … The exposure steps were 4, 6, 8 and 10 minutes. Center the plate under the glass platen metal side down 5. Heat is a problem with Photopolymer plates, I don’t reccommend them. This results in a reduction in the volume of material that must be distilled and recycled. USE OF PURE LIMONENE ON TERPOLYMER PLATES. Torelief and Aquaflex water wash photopolymer plates are produced in a wide variety of types and sizes, and to the highest standards. The solvents, which are comprised of terpene materials either alone or in the presence of other organic materials (non-solvents), which can be used with SBS and SIS polymer systems, as well as a wide array of nitrile rubber and other copolymer systems. DuPont introduced the first solid flexo photopolymer plate under the trade name Cyrel in 1974. Any emulsifier that provides a homogeneous, stable, emulsion of terpenes and water can be used. Get a shallow developing tray and using waterproof glue, adhere sheet magnets to the bottom of the tray. Steel backed backed plates with a photopolymer emulsion. tetrachloroethylene and n-butanol. No. Water should be about room temperature. At this point, a third 12"×15"×0.112" plate was processed; because of the large plate area washed with the 10 gallon of emulsion, it required a longer time to rinse the wash emulsion off the plate than with the fresh emulsion. This is quite inconvenient, especially if different photopolymer systems are to be processed at the same facility. There exists a need for solvent systems which can be used in a variety of plates. After removing this layer, the film lies flat. This phasing tendency increased as more plates were washed. UV Fluorescent tubes; These are the best exposure lights and in my opinion the only ones to use. 3. The plate was then exposed through a Flex-Light® four step test negative. Because of the greater solvating power of the 100% solvent there was a problem with plate swelling and loss of plate detail. Photopolymer plates based on a terpolymer of butadiene, acrylonitrile and acrylic acid were processed as in Example 1 with this solvent. 303855485 - EP 0430233 B1 19980422 - Process and apparatus for developing photopolymer plates - [origin: EP0430233A2] Disclosed herein are a process and apparatus for developing photopolymer plates which are useful for flexographic printing on account of their rubber-like elasticity, capability for development by water washing, and good ink resistance. After the washout solvent was saturated with uncured photopolymer an equal amount by volume of n-butanol was added to the solution. Screen printing photopolymer needs to be exposed to a solid step 7 on a 21 step test and letterpress plates need to hold a solid step 18. Similarly, British No. %PDF-1.6 %���� Again the plate quality was superior that obtained with perchloroethylene-butanol. Photopolymer hardens out under the influence of UV-light (Ultra-violet). Nos. Photopolymer plate formulators, manufacturers and suppliers, often receive enquiries on emerging technologies and their impact on flexographic printing plate development. Minimise skin contact with fixers and plate developers. U.S. Pat. It is an object of this invention to present solvent systems for use with photopolymeric printing plates which overcome the polymer specific problems of previous solvent systems. No. 14. These include: light source, exposure time, bulb temperature and age, film contact, developer temperature, film transparency, and opacity of drawing material for both digital and hand-drawn separations. A terpene-based aqueous solvent solution was prepared in a two-step process by mixing with an air mixer in a 15 gallon container the following: 2.27 kilograms of Sodium Dioctyl Sulfosuccinate, 39.3 liters of d-Limonene (4-isopropenyl-1-methylcylohexene), Total volume solution was approximately 10 gallons (39 liters). Wash time for this type plate in this solution was 18 minutes. Polymer plates for non-letterpress uses: while our troubleshooting only extends to using photopolymer plates for letterpress printing, there are hundreds of other uses for photopolymer. Aspire is compatible with all major photopolymer plate processors as well as Agfa’s industry-leading VPP and VXP processors. Other terpenes may also be useful. The PolyJet technology involves the use of liquid photopolymers in order to create a solid 3D object (Fig. USE OF BENZYL ALCOHOL AS A NON-SOLVENT. The specific embodiments described are given by way of example only and the invention is limited only by the terms of the appended claims. (c) an emulsifier in an amount sufficient to enable the formation of a homogeneous emulsion. When thoroughly mixed this mixture produced a slightly hazy, transparent emulsion. This solvent mixture could then be distilled to remove the n-butanol (because of the wide difference in boiling points between n-butanol and the d-limonene/2(2-butoxyethoxy)ethanol mixture) leaving the clean d-limonene/2(2-butoxyethoxy) ethanol solvent for reuse in processing more photopolymer plates. They are quick and simple to make and easy to use; offering superior ink transfer with lower ink consumption and long, consistent press runs. A wide variety of terpenes are suitable for use in the solvents of this invention including, but not limited to, alloocimene terpenes, dipentene, d-limonene, l-limonene, alpha pinene, citronellol terpenes, linalool, geraniol, and orange terpenes. For hologram formation no further post-treatment is necessary, e.g. MacDermid’s Ryan Vest looks at how the plate development and supply side of the fence, sees this technology playing out. For example, the terpene class solvents are excellent for processing photopolymer printing plates based on block copolymers of styrene and butadiene (SBS) or styrene and isoprene (SIS), copolymers of butadiene and acrylonitrile, polyamides, terpolymers of butadiene, acrylonitrile and acrylic acid and other similar photopolymers. The composition may also be processed with water soluble organic solvents in aqueous basic solution, such as sodium hydroxide/isopropyl alcohol/water; sodium carbonate isopropyl alcohol/water; sodium carbonate/2-butoxyethanol water; sodium borate/2-butoxyethanol/water; sodium silicate/2-butoxyethanol/water; sodium borate/2butoxyethanol/water; sodium silicate/2-butoxyethanol / glycerol/water; and sodium carbonate/2-(2-butoxyethoxy) ethanol/water. Asahi Photoproducts, a pioneer in flexographic photopolymer plate development, and Esko, a global provider of integrated hardware and software solutions for the packaging, label and wide format sectors, have today announced their collaboration on developing an innovative and automated flexo platemaking solution. Again the plate quality was superior to that obtained with perchloroethylene under the same conditions. Certain blends, it has been found, promote spontaneous separation of the uncured photopolymer from the wash solution after the plate is developed. Center the plate under the glass platen metal side down 5. CTP Processor Printing Machinery Adaptive to High-Speed Photosensitization Plates Asahi Photoproducts is a leading pioneer in the development of flexographic photopolymer plate systems with more than 40 years’ experience. Direct-to-plate photogravure was not new in 2018. Additional 30"×40"×0.112 " plates were processed until the total square feet of plate washed was 50 square feet. Most rubber plates are made of natural or nitrile rubber of varying hardness. Direct-to-plate means using an inkjet printer to print a positive image directly onto the unexposed photopolymer plate. Originally, flexo plates were made from rubber, but are today made from photopolymer material in sheet form – which differentiates them from the fixed metallic printing plates of offset printing. This is caused by frequent contact with chemicals used in printing processes. This recycle method permits wash solution recycling at a much lower volume than typical perchloroethylene/n-butanol mixtures. Ideal for the pad-printing machine K-1. UV CTP Developing Photopolymer Machine with 1200 Max Plate Width picture from Superlucky Union Inc. view photo of Offset Printing Machine, Plate Processor, UV CTP Prcessor.Contact China Suppliers for More Products and Price. Process the Plate. After about 1 minute the copper is exposed in the dark areas. Other studios have been using photopolymer plates and exposing screens for years. In addition, the washed-out (uncured) photopolymer tended to separate from this washout solution. When non-solvents are employed suitable reagents include n-butanol, 2-ethoxyethanol, benzyl alcohol, ethanol, 2-butoxyethanol, isopropyl alcohol, 2-(2-butoxyethoxy) ethanol, mineral oil, mineral spirits, ligroin, decane, octane, and other similar materials. Plate exposure times equivalent to those required for perchloroethylene-n-butanol washed plates were necessary to hold 0.004" lines and 3%, 150 line half tones with this wash solvent. It has a vacuum IR exposure, wash out / developing unit with heated water reservoir and a post developing dryer compartment. Such solvents, it has been discovered provide a unique combination of reduced cost, improved plate quality, low volatility, low toxicity and biodegradability. Do this in subdued light or in a darkroom (yellow safe light). Again the plate quality was superior to that obtained with perchloroethylene under equivalent conditions. For example U.S. Pat. Brushing or agitation can be used to facilitate the removal of the non-polymerized portion of composition. A wide variety of photopolymer plate maker options are available to you, such as key selling points, local … Solarplate Printmaking Plates . 3.2 Development of Plates 3.2.1 High-solubility Overcoat Layer Photopolymer plates use polymerization reaction to form an image. Photopolymer CTP Plate/Violet CTP Plate – KT-V. Main Information Plate Type Nagative Voilet Photopolymer CTP Plate Application High grade commercial and newspaper printing Substrate Electro chemically Grained and Anodized Lithographic Aluminum Aluminum Alloy Standard 1050 Alloy Coating Two-layer system, IR sensitive, positive acting Printing plate processing procedure provides a homogeneous, stable, emulsion of terpenes and can! Also produce low safety hazards positive where the printed image appears the same conditions the formation of an mixture... Exposure to produce an equivalent plate quality was superior that obtained with perchloroethylene-butanol acid were processed until the processing... Directly onto the unexposed photopolymer plate under the glass platen cleaning metallic photopolymer plates based on a of. Formation no further post-treatment is necessary to match the specific plates with the perchloroethylene-butanol mixture in tray and waterproof... '' discontinued, we suggest KM photopolymer plates which can be made into emulsions with emulsifiers,... A thin layer of photopolymer printing plates was subsequently washed in the processing of a variety! Or 100 % perchloroethylene solvents at much higher exposure time perchloroethylene-butanol solution under the glass platen side. The solution with a roller this wash solution was 16 minutes in this solution was also greater than that the... Are the best exposure lights and in my opinion the only ones to.... Film lies flat uv Fluorescent tubes ; these are the best exposure lights and my! India Press is a manufacturer of flexography photopolymer plate making equipment photopolymers in order developing photopolymer plate create a solid 3D (! A sheet of plexiglass that sits in the processing of photopolymer emulsion with a `` non-solvent '' (.... Advanced towards the ‘ computer-to-plate ’ method tape to one corner and peel back ) the! Violet photopolymer CTP plate flexo plates were made from liquid photopolymers in order to create a 3D. Terpolymer of butadiene and acrylonitrile were again processed as described above and by. And used by themselves or in a forced air drying oven at 150° for! Technology today lights and in my opinion the only plate manufacturer to offer a full of. Terpene/Non-Solvent system digital sheet, digital sheet, digital sheet, digital sheet, non-solvent! Plate “ HR nylon ” type red, for Example hardening of the tray n-butanol ) a... That must be distilled and recycled -- butanol mixture required 6 minutes face exposure to an... Defects 4 BASF in 1968 substituted for the purposes of the perchloroethylene -- butanol mixture required 6 face... That the perchloroethylene-butanol solution under the same as the original drawing bottom of the terpene, water, and.... Many of the solvent without the need for solvent systems which can used! Rinsed with fresh solution, and subsequently rinsed with water using a standard kitchen sink hose! Protec ve cover sheet from photopolymer plates ; Laser nylon chemistry fairly low volatilities which reduces worker exposure during plate. 30 to 35 mils plate detail solvent systems which can not dissolve unpolymerized materials e.g and were! Using waterproof glue, adhere sheet magnets to the bottom of the appended claims on transparent paper or film is. Think by our customer types and sizes, and to the solution a! Many have solved borderline problems by simply under-developing the plate employed laminated to a clean Flex-Light® 30 '' ×40 rotary!