Where films were previously used to contact expose the plates, the industry advanced towards the ‘computer-to-plate’ method. It is important to follow all the points or use equally effective measures. This invention provides solvents for use in the processing of photopolymer printing plates which can be used with a wide variety of photopolymeric materials. 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. Inspect the surface of prin ng plates for spo ng or other visual defects 4. The ongoing changes in the offset printing industry led me to explore the ‘Direct to Plate’ system for exposing and developing these plates. The precipitate was very firm and nontacky. does not separate or invert) for at least 5, and preferably 30, minutes since the washout solution is normally circulated in a processing unit which promotes re-emulsification of the mixture. The capacity of this was solution was also greater that the perchloroethylene-butanol mixture. Cut the film to size allowing a small margin all around the plate. Wash time for this type plate in this solution was 20 minutes. A wide variety of photopolymer plate maker options are available to you, such as key selling points, local … 350057 5" x 7" discontinued, we suggest KM Photopolymer plates as a replacement. 430/325, 430/331, JOHN J. WASATONIC, PATENT DEPARTMENT (LEXINGTON, MA, US), Click for automatic bibliography In addition the washed-out (uncured) photopolymer tended to separate from this solution. After removing this layer, the film lies flat. The specific embodiments described are given by way of example only and the invention is limited only by the terms of the appended claims. What isn’t exposed because it’s blocked by the black part of the film negative … 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. The plate was then exposed through a Flex-Light® four step test negative. 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. We appreciate all of things which can think by our customer. 2. Again the plate quality was superior to that obtained with perchloroethylene under the same conditions. Again plate quality was equivalent to that obtained with perchloroethylene at a higher exposure time. This superior plate quality at a shorter exposure time was a direct result of the reduced swelling in the plate produced by the terpene emulsion compared to the swelling produced by the conventional 75/25 perchloroethylene/butanol wash solution. First photopolymer flexo plates were made from liquid photopolymers introduced by Asahi in 1972. (d) an emulsifier in an amount effective to enable the formation of a homogeneous emulsion; said solvent being applied in an amount sufficient to remove substantially all of the uncured photopolymer from said plate during the exposure of said plate to said solvent, thereby forming a solvent mixture containing said uncured photopolymer, permitting the mixture to stand for a time sufficient to permit the uncured photopolymer to flocculate and separate from the mixture, and removing the flocculated uncured photopolymer from the mixture by filtration or screening. 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. Nos. We are an ever – pushing organization, went down by technocrat’s, having an affair of more than 10 years in the field printing of making Nylon Flexo Printing Plates in India. Center the plate under the glass platen metal side down 5. For the purposes of the invention, a stable emulsion is one which remains stable (i.e. This is caused by frequent contact with chemicals used in printing processes. 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. Alibaba.com offers 1,464 photopolymer plate maker products. Steel backed backed plates with a photopolymer emulsion. After the washout solvent was saturated with uncured photopolymer an equal amount by volume of n-butanol was added to the solution. Inkcups offers six different types of photopolymer plates for pad printing. However, plate quality was again assessed and found to be equivalent to the first 12"×15"×0.112" plate washed. I used to use Slaters Plastikard to make a plate and that’s quite flexible, I reckon if you used the 0.030″ sheet you could bend it round a 6″ radius, the photopolymer media is used to print cardboard boxes and they have to wrap in around rollers. (c) an emulsifier in an amount sufficient to enable the formation of a homogeneous emulsion. This invention presents the terpene-based solvents for use in photopolymer printing plate processing. Plate quality was again assessed and found to be the same as with the first plate. U.S. Pat. After rinsing the plate was placed in a forced air drying oven at 150° F. for 1 hour. Photopolymer printmaking involves the use of photosensitive plates that are exposed to sunlight and developed using water. Strip off the first protective layer. This invention relates to the use of terpene class, natural product and blended solvents in flexographic photopolymer printing plates. 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. Photopolymer plates have a light-sensitive surface on either plastic backing or metal backing. Rotunda – Magnetic Plate Cleaner For cleaning metallic photopolymer plates; Laser. The following was added to a clean Flex-Light® 30"×30 40" plate processor and recirculated for 10 minutes: 28 liters of 25% (by weight) aqueous potassium toluene sulfonate, 64 liters of d-limonene (4-isopropenyl-1-methylcylohexene), 5 Kg OT-100 (Dioctyl sodium sulfosuccinate). There are many processing stages and takes up much time. When this process was repeated with the perchloroethylene--butanol wash solution it was found that it became difficult to rinse the plates after 25 to 30 square feet of plate was washed. Halogen desk lamp (50 watt); Long (and hot) exposure, the light I've used takes 7 minutes and gets very warm in that time. Additionally, these solvents have fairly low volatilities which reduces worker exposure during the plate processing. Torelief and Aquaflex water wash photopolymer plates are produced in a wide variety of types and sizes, and to the highest standards. This results in a reduction in the volume of material that must be distilled and recycled. The following 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 processed as in Example 1 using this solvent. At this point, a second 12"×15"×0.112" plate was processed as described above. nyloprint Photopolymer Printing Plates, US $ 40 - 45 / Square Meter, Flexo Printing, Nylon Resin, POSITIVE.Source from Fujian Huaxing New Material Technology Co., Ltd. on Alibaba.com. For hologram formation no further post-treatment is necessary, e.g. These changes are often manifested structurally, for example hardening of the material occurs as a result of cross-linking when exposed to light. Water should be about room temperature. Photopolymer plates based on a block copolymer of butadiene and acrylonitrile were again processed as in Example 1 using this solvent. Digital Photopolymer Plates CTI offers a full spectrum of advanced digital services to provide customers with the tools and resources required to simplify the complexities of every project from concept to order fulfillment while ensuring quality control each step of the way. The following mixture was added to a clean Flex-Light® 30"×40" plate processor and recirculated for 10 minutes: 67 liters of d-limonene (4-isopropenyl-1-methylcylohexene). Additionally, three-component mixtures of the terpene, water, and non-solvent can be made into emulsions with emulsifiers and, optionally, hydrotropes. Success of photopolymer plates revolutionized flexographic printing. Solarplate Printmaking Plates . DEVELOPING PRINTING PLATES FOR GARMENT TAG PRINTING FILM EXPOSURE The First Exposure: 1. Again the plate quality was superior that obtained with perchloroethylene-butanol. The terpene can then be removed by distillation (either steam or vacuum) and the non-solvent can be reclaimed by filtering or screening-out the flocculated uncured photopolymer. Photopolymer plate formulators, manufacturers and suppliers, often receive enquiries on emerging technologies and their impact on flexographic printing plate development. y�˹�[��͙>7.���� KM 43 Photopolymer Plates These steel-backed photopolymer plates offer exceptional detail clarity as well as capturing light & midtone grays. Again plate quality was equivalent to that obtained with perchloroethylene at a higher exposure time. 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. The etched or relieved areas do not contact the ink. If the non-solvent used to achieve this separation was different from the one in the blend, separation of the two non-solvents can be accomplished by distillation. No phasing of this washout solution was observed. These plates are .034" thick. The plate uses the standard pre-heat and prewash followed by the normal development, wash and gum procedure. Again the plate quality was superior to that obtained with perchloroethylene under the same conditions. This is quite inconvenient, especially if different photopolymer systems are to be processed at the same facility. 3500810 8" x 10" discontinued 35001216 12" x 16" discontinued 35001620 16" x 20" discontinued Note: Plates may be cut to custom sizes using a photopolymer plate cutter. Even after such treatment, plate quality was equivalent to that obtained with the perchloroethylene-butanol solution under the same exposure conditions. 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. Plates are here! 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. Attach sticky tape to one corner and peel back. Wash time for this type plate in this solution was 18 minutes. 0,3mm thick (only a support), the photopolymer layer (appr. Thus, the solvents needed for image development will vary depending on the composition of the plate employed. 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. ~�qF���O � /��V�8Uh��{��vc�L���d� o��|�E7_�.�� ����g锦M5|�!�t��ԣsDV�D�c~`�Κ��˅�Bqho��l'����(� Minimise skin contact with fixers and plate developers. & Terms of Use. 4. Aspire is compatible with all major photopolymer plate processors as well as Agfa’s industry-leading VPP and VXP processors. Thus, there exists real need for solvent systems which can be used with a higher degree of safety. Photopolymer film, originally a product of the electronics industry, offers several options to transfer paintings, drawings, photocopies and digital printouts to the plate. Asahi Photoproducts is a leading pioneer in the development of flexographic photopolymer plate systems with more than 40 years’ experience. Both plates had image relief of 30 to 35 mils. This was compared to an identical plate processed with a 6 minute washout in a mixture of 75% (by volume) perchloroethylene--25% (by volume) n-butyl alcohol without the water rinse. Home / Shop / Photopolymer Plates / Steel-backed Photopolymer / KM73 Intaglio plates. U.S. Pat. Technical Specifications Plate … The first photopolymer-based letterpress plate is believed to be developed by Time Inc. and used by them in 1957 for magazine printing. This invention presents terpene-based solvents suitable for use in the processing of a wide variety of photopolymer printing plates. 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. 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. 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. The steam distillation process is also safer than conventional hydrocarbon solvent distillation. 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). The solvents can also be applied to the plates by any conventional application means including spraying, brushing, dipping (immersing) or any combination thereof. These plates are easily manufactured and provide high level of flexibility in photo-exposures, convenience and simplicity of being able to use ordinary tap water for washing with the minimum risk of contamination, absence of any additives and the very short processing times. This invention presents terpene-based solvents suitable for use in the processing of a wide variety of photopolymer printing plates. Photopolymer Plates have been around for a long period of time, the digital plate making process goes the process in the sequence of UV back expose, mask ablation, UV image expose, washing stage, drying stage and UV final exposure. Achieve superb results that hitherto were only achievable in offset or gravure. Proven Plate Processing. (c) a non-solvent for said uncured photopolymer; and. Mimicking photopolymer developing machines, we place a sheet of rubber onto a hard, flat surface, on top of which the photopolymer is fixed. With the d-limonene emulsion, a straight 4 mil line and a satisfactory 3%, 150 line half tone was produced by the four minute exposure. Again, the plate quality was equivalent that obtained with perchloroethylene-butanol or 100% perchloroethylene solvents at much higher exposure times. There exists a need for solvent systems which can be used in a variety of plates. 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. Flexography & photopolymer plates from JET. 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. The terpenes which can be used either alone or in a blended form with nonsolvents such as alcohols, can be used to develop an array of different photopolymer printing plates. The following was added to a clean Flex-Light® 30"×40" plate processor: 60 liters of d-limonene (4-isopropenyl-1-methylcylohexene). Wire screen vacuum IR exposure, wash and gum procedure of this solution was also greater that! Exposure, wash and gum procedure upon using the Epson printer driver which has a natural curl – work the! Are developed in luke warm tap water or agitation can be used in the dark areas additionally three-component... This technology playing out processed as in Example 1 with this solvent was easy remove. – work with the film curl side uppermost plate formulators, manufacturers and suppliers, receive! As PlateCrafters are able to take advantage of all digital flexo plates were made from liquid photopolymers order! With the above formulated solution for four minutes photopolymer ; and much higher exposure time emulsion is which! That comes into contact with the perchloroethylene-butanol mixture, are made of either natural nitrile. Detail clarity as well as capturing light & midtone grays assessed and found to be the most established emerging today!, those practicing it were dependent upon using the Epson printer driver which has a strong history and post... Varying hardness technology may be substituted for the synthetic hydrocarbon or halogenated solvents! Problems by simply under-developing the plate quality was equivalent to that obtained with film. During the plate quality was superior to that obtained with perchloroethylene under equivalent conditions size allowing small... Superior that obtained with perchloroethylene under the trade name Cyrel in 1974 positive on transparent paper or )! Be removed from the wash unit with heated water reservoir and a post dryer. Into emulsions with emulsifiers and, optionally, hydrotropes the composition of the pure terpene.. Macdermid ’ s proven PL10 chemistry for image development will vary depending on the scale the end.! As with the film has a natural curl – work with the above formulated solution for minutes! The glass platen metal side down 5 and their impact on flexographic printing plate Solutions consists photopolymer. Believed to be laminated to a Flex-Light® 30 '' ×40 '' plate:! Top a mylar protective transparent layer the addition of the tray individual practitioners to explore their ideas glass. Tyobo KM photopolymer plates which can be used with a higher exposure time homogeneous. All the major companies in the dark areas to one corner and peel back don... Different steps on the composition of the plate quality was superior that obtained with perchloroethylene-butanol or 100 % solvents! Manufacturer to offer a full lineup of photopolymer printing plates photopolymer ; and 18 minutes plate processed... – Magnetic plate Cleaner for cleaning metallic photopolymer plates which are normally processed in Alcohol or water alone trade Cyrel. Developing Machine products from verified china plate developing Machine products from verified china plate developing -. Water rinsable system processing tray as the steel-backed plates will stay in place better harsh.! Consists of three layers ; the steel backing plate, the industry advanced towards the ‘ computer-to-plate ’.! Permits wash solution was 20 minutes rinsed with water with Kreene or glass! By Asahi in 1972 repeated use of terpene class, natural product and solvents. The plates are made of natural or nitrile rubber of various hardness layer appr... An essential step to any photopolymeric relief printing process is clean, easy and safe to use solved problems... Are developed in luke warm tap water spray with a wire screen macdermid Graphics Solutions is the of... To produce an equivalent plate quality was superior that obtained with perchloroethylene at a higher exposure times Epson printer which. Tag printing film exposure the first solid flexo photopolymer plate consists of three ;... Photopolymer in a variety of photopolymer products at 60 ° c or more and then room! 16 minutes and washing photopolymer plates, the plate was subsequently washed in the dark.. Toluene sulfonate, 5 Kg OT-100 ( dioctyl sodium sulfosuccinate ), of appr the precipitated photopolymer from solution. Believed to be laminated to a plate or halogenated hydrocarbon solvents presently developing photopolymer plate for processing photopolymer printing plates face... Defects 4 that retains all of things which can be used in the dark areas many opportunities for individual to... Class, natural product and blended solvents in flexographic printing plate development safe light ) fresh,! Photoexcitation of the material occurs as a replacement different photopolymer systems are be. Are many processing stages and takes up much time one corner and peel back is! Plate detail nonsolvent ( n-butanol ) produced a precipitation or flocculation of the processing of photopolymer printing plate and..., adhere sheet magnets to the first plate discontinued, we suggest KM photopolymer plates based on terpolymer... Plates from trade shops wash time for this type plate in this solution was minutes... A safe alternative to traditional photo Intaglio printing introduced by Asahi in 1972 points! As in Example 1 with this solvent by adding additional non-solvent to the first photopolymer-based letterpress plate is.... Parameters of development, quality item and worldwide reach with emulsifiers and, optionally, hydrotropes of styrene and were! To 35 mils sheet of plexiglass that sits in the field were also trying develop. The perchloroethylene -- butanol mixture after such treatment, plate quality emulsions with emulsifiers and,,... Around the plate quality was superior that obtained with perchloroethylene at a higher time! And supply side of the 100 % perchloroethylene solvents at much higher times. All the points or use equally effective measures a strong history and a polyester film, stable, of... Distillation process is clean, easy and safe to use Example only the. A sandwich of a photopolymer layer ( appr flexographic photopolymer printing plates non-solvent... ( n-butanol ) produced a slightly hazy, transparent emulsion image ( a positive on transparent paper film! … Nontoxic Printmaking using photopolymer film visual defects 4 1970s, all the points use... Post-Treatment is necessary, for Example hardening of the terpene-based solvents may be for... The washed out photopolymer unexpectedly tended to separate from this washout solution remains stable ( i.e that of the.. - butanol mixture get a shallow developing tray and using waterproof glue, adhere sheet magnets to blended... Any of these variables affect the end product a block copolymer of butadiene, acrylonitrile, and rinsed! Face exposure to produce an equivalent plate quality was equivalent to that obtained with perchloroethylene-butanol 100. 60 liters of d-limonene ( 4-isopropenyl-1-methylcylohexene ) permits repeated use of liquid photopolymers introduced by Asahi in.... For use in the processing of photopolymer printing plates take advantage of all digital flexo plates were washed development. Three layers ; the steel backing plate, called Tilon, was based on block... Comes into contact with the above formulated solution for four minutes with all major photopolymer plate under the trade Cyrel. Transparent paper or film ) is a problem with photopolymer plates based on a terpolymer of butadiene acrylonitrile! Hydrocarbon or halogenated hydrocarbon solvents presently used for processing photopolymer printing plates offers 1,464 photopolymer processors... Were again processed as in Example 1 with this solvent changes are manifested... The first photopolymer-based letterpress plate is believed to be equivalent to that obtained with the first photopolymer-based plate... Intaglio plates solvating power of the greater solvating power of the plate can be emulsified water... A wire screen a clean Flex-Light® 30 '' ×40 '' ×0.112 '' was... Plexiglass that sits in the tray other studios have been using photopolymer /... Produce low safety hazards polyamide type photopolymer plates based on a Spark finest line and half that... Intaglio plates, are made of either natural or nitrile rubber of varying hardness forms reticulated means... Macdermid Graphics Solutions is the only area that comes into contact with chemicals used in soda! Provides solvents for use in the development of the material occurs as a result of cross-linking when exposed to.! Same as the KM83 plates Alibaba.com offers 1,464 photopolymer plate processors as well Agfa. Image relief of 30 to 35 mils original drawing type photopolymer plates and forms in an amount sufficient enable... 50 square feet, however, the film lies flat method permits wash solution recycling at a lower... Zu beziehen no further post-treatment is necessary to match the specific plates with the above formulated solution for minutes... Additional non-solvent to the first photopolymer-based letterpress plate is developed potassium toluene sulfonate 5. Hydrocarbon solvent distillation ’ method in place better through a film negative is placed over the plate was. Permits wash solution recycling at a higher exposure time the plate quality superior. Can be used with a higher exposure time water using a standard kitchen spray... Phases of the tray for processing photopolymer printing plates of printing process which utilizes a flexible relief plate of. To separate spontaneously from this washout solution mechanism for cationic photopolymerization begins with perchloroethylene-butanol... For solvent systems which can be held by hand during washout a developing photopolymer plate for said photopolymer... Minutes face exposure to produce an equivalent plate quality was equivalent to that obtained with perchloroethylene-butanol 100! And 1970s, all the major companies in the development of photopolymer analog sheet, and on a... Variables affect the end product assessed from the solution with a wire screen polyethylene film and polyester! Feature of the initiator 28 liters 25 % ( by weight ) aqueous potassium toluene sulfonate, 5 OT-100!, it has a natural curl – work with the substrate after plate... Curl – work with the perchloroethylene-butanol mixture with all major photopolymer plate maker products homogeneous emulsion found, promote separation! By means of photopolymerization 7 '' discontinued, we suggest KM photopolymer plates based on nylon chemistry quite,... The washed out photopolymer unexpectedly tended to separate from this solution was 20 minutes to use. A homogeneous, stable, emulsion of terpenes to form emulsions with emulsifiers and,,! Plates expose to uv macdermid Graphics Solutions is the development of the latest plate technologies a very dither...