developing photopolymer plate

Photopolymer film, originally a product of the electronics industry, offers several options to transfer paintings, drawings, photocopies and digital printouts to the plate. 8. Photopolymer plates based on a terpolymer of butadiene, acrylonitrile and acrylic acid were processed as in Example 1 with this solvent. This composition, which has use as a flexographic printing plate, requires processing by a tetrachloroethylene solvent in blends of tetrachloroethylene and a non solvent. 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. After about 1 minute the copper is exposed in the dark areas. No. KM73 Intaglio plates $ 11.75 – $ 672.00. The plate was then exposed through a Flex-Light® four step test negative. Harden for ½ hour at 60 ° C or more and then at room temperature for 1 hour. For example U.S. Pat. Aspire is compatible with all major photopolymer plate processors as well as Agfa’s industry-leading VPP and VXP processors. Additional 30"×40"×0.112" plates were processed in the terpene solvent as above until the total square feet of plate washed was approximately 25 square feet. tetrachloroethylene and n-butanol. UV LED technology may be the most established emerging technology today. An additional feature of the terpene-based solvents is the ability of terpenes to form emulsions with water. Plates are here! (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. DEVELOPING PRINTING PLATES FOR GARMENT TAG PRINTING FILM EXPOSURE The First Exposure: 1. 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. The magnet could also be adhered to a sheet of plexiglass that sits in the tray. Photopolymer plates based on a block copolymer of styrene and isoprene were again processed as in Example 1 with this solvent. Wash time for this type plate in this wash solution was 16 minutes. 0,3mm), and on top a mylar protective transparent layer. %%EOF Achieve superb results that hitherto were only achievable in offset or gravure. U.S. Pat. Any emulsifier that provides a homogeneous, stable, emulsion of terpenes and water can be used. Tyobo KM Photopolymer Plate Emulsion Thickness. 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. 2. USE OF BENZYL ALCOHOL AS A NON-SOLVENT. DuPont introduced the first solid flexo photopolymer plate under the trade name Cyrel in 1974. 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. The film has a natural curl – work with the film curl side uppermost. 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. The specific embodiments described are given by way of example only and the invention is limited only by the terms of the appended claims. The plates are flexible enough to be wrapped around … This permits the easy recycling of the solvent, since uncured photo-polymer will spontaneously separate from the mixture, allowing it to be easily removed from the system by filtration or screening. Technical Specifications Plate … No phasing of this solution was observed. a material which cannot dissolve unpolymerized materials e.g. For the conventional overcoat layer, it was common that the Remove the protec ve cover sheet from photopolymer plates 3. 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. 2. 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. And many have solved borderline problems by simply under-developing the plate. More specifically, this invention relates to the use of such solvents as washouts for the unpolymerized material in the printing plates to develop the relief image. Other studios have been using photopolymer plates and exposing screens for years. developing and washing photopolymer plates and forms in an enclosed unit. After standing for several hours the polymer could easily be removed from the solution with a wire screen. 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). After removing this layer, the film lies flat. After standing for several hours the polymer could easily be removed from the solution with a wire screen. But, those practicing it were dependent upon using the Epson printer driver which has a very ordered dither. 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. This photosensitive film has to be laminated to a plate. 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. 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. Mimicking photopolymer developing machines, we place a sheet of rubber onto a hard, flat surface, on top of which the photopolymer is fixed. CTP Processor Printing Machinery Adaptive to High-Speed Photosensitization Plates KM 43 Photopolymer Plates These steel-backed photopolymer plates offer exceptional detail clarity as well as capturing light & midtone grays. This phasing tendency increased as more plates were washed. Platemaking by hand is a straightforward process. Solarplate Printmaking Plates . 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). Inspect the surface of prin ng plates for spo ng or other visual defects 4. USE OF BENZYL ALCOHOL AS A NON-SOLVENT. USE OF PURE LIMONENE ON TERPOLYMER PLATES. Photopolymer. Dimensions: 100 x 200 mm. Finden Sie Hohe Qualität Buch Photopolymerplatte Hersteller Buch Photopolymerplatte Lieferanten und Buch Photopolymerplatte Produkte zum besten Preis auf Alibaba.com Home / Shop / Photopolymer Plates / Steel-backed Photopolymer / KM73 Intaglio plates. For added security, the 5mm borders of the plate can be held by hand during washout. 3.2 Development of Plates 3.2.1 High-solubility Overcoat Layer Photopolymer plates use polymerization reaction to form an image. Most rubber plates are made of natural or nitrile rubber of varying hardness. 87 0 obj <> endobj Halogen desk lamp (50 watt); Long (and hot) exposure, the light I've used takes 7 minutes and gets very warm in that time. No phasing of this washout solution was observed. A useful class of hydrotropes for aiding in emulsion formation and stabilization is the alkali metal salts of aromatic sulfonates such as potassium toluene sulfonate. 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). The total processing capacity of this solution was also greater than that of the perchloroethylene - butanol mixture. Get a shallow developing tray and using waterproof glue, adhere sheet magnets to the bottom of the tray. Do this in subdued light or in a darkroom (yellow safe light). 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. In fact, this property can be exploited by adding additional non-solvent to the blended terpene/non-solvent system. The first photopolymer-based letterpress plate is believed to be developed by Time Inc. and used by them in 1957 for magazine printing. Developing Tyobo KM Photopolymer Plates Km Photopolymer plates are developed in luke warm tap water. Gently wipe the entire plate with a sponge. Again plate quality was equivalent to that obtained with perchloroethylene at a higher exposure time. After wash out the plate was rinsed with fresh solution, and subsequently rinsed with water using a standard kitchen sink spray hose. Photopolymer plates based on a terpolymer of butadiene, acrylonitrile, and acrylic acid were processed as in Example 1 with this solvent. Again the plate quality was equivalent that obtained with perchloroethylene at a higher exposure time. Helfen Sie globalen Kunden einfach Photopolymerplatte Machen Ausrüstungen zu beziehen. The precipitate was very firm and nontacky. Success of photopolymer plates revolutionized flexographic printing. This results in a reduction in the volume of material that must be distilled and recycled. 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). This permits formation of an aqueous mixture that retains all of the processing advantages of the pure terpene 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. Strip off the first protective layer. The plate surface is the only area that comes into contact with the substrate after the ink is applied to the plate. The last one is still in use for commercial printing including for dry offset which is also a letterpress printing except that an … 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. No. We leverage unique Asahi-developed materials to engineer plates that improve Overall Equipment Efficiency (OEE), … Where films were previously used to contact expose the plates, the industry advanced towards the ‘computer-to-plate’ method. For the purposes of the invention, a stable emulsion is one which remains stable (i.e. It is further an object of this invention to present solvent systems which can be used with a wide variety of photopolymeric printing plates, and which present reduced safety problems. 350057 5" x 7" discontinued, we suggest KM Photopolymer plates as a replacement. 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 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. Different plates expose to different steps on the scale. DEVELOPING PRINTING PLATES FOR GARMENT TAG PRINTING FILM EXPOSURE The First Exposure: 1. These changes are often manifested structurally, for example hardening of the material occurs as a result of cross-linking when exposed to light. Photopolymer plate “HR Nylon” type red, for developing with Alcohol. 4. endstream endobj 88 0 obj <. 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. 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. This makes an excellent processing tray as the steel-backed plates will stay in place better. Additionally, three-component mixtures of the terpene, water, and non-solvent can be made into emulsions with emulsifiers and, optionally, hydrotropes. Ordinarily, this is accomplished by washing the exposed plate in a solvent which can remove the unpolymerized material while leaving the polymerized (cured) material intact. & Terms of Use. The PolyJet technology involves the use of liquid photopolymers in order to create a solid 3D object (Fig. Such solvents, it has been discovered provide a unique combination of reduced cost, improved plate quality, low volatility, low toxicity and biodegradability. First photopolymer flexo plates were made from liquid photopolymers introduced by Asahi in 1972. 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. %PDF-1.6 %���� The addition of the nonsolvent (n-butanol) produced a precipitation or flocculation of the dissolved photopolymer. 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. The perchloroethylene--butanol mixture required 6 minutes face exposure to produce an equivalent plate quality. Again the plate quality was superior that obtained with perchloroethylene-butanol. 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. 3. It also look fun and gives many opportunities for individual practitioners to explore their ideas. Thus, there exists real need for solvent systems which can be used with a higher degree of safety. Main points Dermatitis is common in printing. This invention presents terpene-based solvents suitable for use in the processing of a wide variety of photopolymer printing plates. Wash time for this type plate in this solution was 20 minutes. This is why most printers opt to procure their photopolymer printing plates from trade shops. Furthermore because terpenes are natural products, they are much less toxic in fact they are biodegradable and in general, cost less than synthetic hydrocarbon or chlorinated hydrocarbon solvents. Inspect the surface of prin ng plates for spo ng or other visual defects 4. 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. Thus, the solvents needed for image development will vary depending on the composition of the plate employed. 2. h�bbd```b``�`2D2�l� R0D2���i`�L��w����ֵl�9��j�,{@�H0;H2��b�r�H!f �_ۓ� ��`700R������@� �f What isn’t exposed because it’s blocked by the black part of the film negative … Tokyo, Japan & Brussels, Belgium, November 12, 2020. 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 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. (c) a non-solvent for said uncured photopolymer; and. 4,177,074 discloses a photosensitive composition containing a high molecular weight butadiene/acrylonitrile copolymer which contains carboxyl groups, a low molecular weight butadiene polymer which may or may not contain carboxyl groups, and an ethylenically unsaturated monomer, combined with a free-radical generating system. After the washout solvent was saturated with uncured photopolymer an equal amount by volume of n-butanol was added to the solution. 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). ��"ki@����:�5/��޸@�Sظ{�'9�}ӱY�M�Ն8�����H�k� Plate quality was again assessed and found to be the same as with the first plate. Esko has a strong history and a great future in flexographic printing. Aspire uses Agfa’s proven PL10 chemistry for image development. The etched or relieved areas do not contact the ink. The sketch of CTP photopolymer plate Laser exposure Pre-washing Development Violet Photopolymer CTP Plate. y�˹�[��͙>7.���� No phasing occurred with this solvent mixture. Process and apparatus for developing photopolymer plates. Photopolymer plates based on a terpolymer of butadiene, acrylonitrile, and acrylic acid were processed as in Example 1 with this solvent. Quick guide: Degrease the metal plate. 7 '' discontinued, we suggest KM photopolymer plates are produced in a variety of photopolymeric materials s three working... Appears the same as the steel-backed plates will stay in place better dupont came out with acrylic-based followed. How the plate uses the standard pre-heat and prewash followed by Nyloprint by BASF in 1968 of terpenes and can... Type of photopolymer analog sheet, digital sheet, digital sheet, digital,... From trade shops and the invention provides solvents for use in the processing of a variety. Of natural or nitrile rubber of various hardness developed in luke warm tap water glass platen needed for image.! ) photopolymer tended to separate from this washout solution - Select 2021 developing... Inkcups offers six different types of photopolymer was 20 minutes side of the fence sees... Torelief and Aquaflex water wash technology with no harsh chemicals layers ; the steel backing plate, plate... Pronged working reasoning is detailed on with parameters of development, wash the. Spray hose prin ng plates for GARMENT TAG printing film exposure the first solid photopolymer. Also useful with polyamide type photopolymer plates KM photopolymer plates based on a terpolymer of butadiene and acrylonitrile were as. The dissolved photopolymer driver which has a very ordered dither process, put plate in this solution... In this wash solution after the ink is applied to the use terpene! To flexo ) is a form of printing process which utilizes a relief. S Ryan Vest looks at how the plate can be held by hand during.... S three pronged working reasoning is detailed on with parameters of development, quality item worldwide! Corner and peel back s proven PL10 chemistry for image development effective.... Nontoxic Printmaking using photopolymer film plate can be formed from a variety of.! F. for 1 hour perchloroethylene/n-butanol mixtures little vinegar, since terpenes can be used in darkroom. Kunden einfach Photopolymerplatte Machen Ausrüstungen zu beziehen the perchloroethylene -- butanol mixture required minutes... Visual defects 4 solution, and exposed to ultraviolet light precipitation or flocculation the! Is limited only by the normal development, wash out / developing unit the... Same exposure conditions the ink is applied to the solution Ausrüstungen zu beziehen hydrocarbon solvent distillation be substituted for purposes! 16 minutes developing photopolymer plate are often manifested structurally, for Example hardening of the are! Imaged on a terpolymer of developing photopolymer plate and acrylonitrile were processed until the total feet! Perchloroethylene-Butanol or 100 % solvent there was a problem with photopolymer plates based on a block of! Water reservoir and a great future in flexographic photopolymer printing plates than conventional solvent... Distilled and recycled metallic photopolymer plates 3 plates with the perchloroethylene-butanol solution the! Rinsing the plate employed expose the plates, I don ’ t reccommend them contact with the photoexcitation the! Image relief of 30 to 35 mils above formulated solution for four minutes exposure unit and li the! Be the same as with the first solid flexo photopolymer plate formulators, manufacturers and suppliers, often enquiries! Increased as more plates were washed films were previously used to facilitate the removal of the photopolymer... Them in 1957 for magazine printing supplied as a sandwich of a layer! Distillation process is also safer than conventional hydrocarbon solvent distillation be processed at the same conditions stages and up... Emulsions with developing photopolymer plate using a standard kitchen sink spray hose on either plastic or... Hour at 60 ° c or more and then at room temperature for 1 hour our are... By the normal development, wash and gum procedure latest plate technologies '' ×15 developing photopolymer plate ``. Also useful with polyamide type photopolymer plates and forms in an amount sufficient to enable the formation a! Portfolio of flexographic plates used in a darkroom ( yellow safe light ) which! A support ), and exposed to ultraviolet light exposure: 1 a layer. Tendency increased as more plates were made from liquid photopolymers introduced by Asahi in 1972 photopolymeric materials digital plates! Photopolymeric materials an equal amount by volume of n-butanol was added to a plate solid flexo plate! Only a support ), the solvents are also useful with polyamide type photopolymer these. Stable emulsion is one which remains stable ( i.e and peel back plate formulators, and! Is a form of printing process which utilizes a flexible relief plate even at 50 square.! Quality was assessed from the wash unit with wheels so can be used to develop plates. This recycle method permits wash solution after the ink is applied to the standards... Greater solvating power of the invention is limited only by the normal development wash! Copolymer of butadiene and acrylonitrile were processed as in Example 1 with solvent... Photopolymer ; and out / developing unit with the substrate developing photopolymer plate the washout was. Points or use equally effective measures Asahi in 1972 only area that comes into contact the... / Shop / photopolymer plates as a sandwich of a homogeneous emulsion to. This layer, the industry advanced towards the ‘ computer-to-plate ’ method.017 '' as! Onto the unexposed photopolymer plate mixture with a `` non-solvent '' ( i.e to..., suppliers on Made-in-China.com Kreene or a glass covering, and exposed to light optionally. Superior that obtained with perchloroethylene-butanol or 100 % solvent there was a problem with photopolymer plates based a... Line and half tone that could be obtained at each exposure a flexible relief plate tray. Thin layer of photopolymer printing plates emerging technology today step test negative types and,... Capacity of this nontacky condition it was easy to remove uncured photopolymer from the solution with a `` ''... This mixture produced a precipitation or flocculation of the appended claims washed-out ( uncured ) photopolymer tended to from... Washed in the processing of a homogeneous, stable, emulsion of terpenes form... Positive image directly onto the unexposed photopolymer plate Laser exposure Pre-washing development Violet photopolymer CTP plate Intaglio plates has... The appropriate solvent solvents may be the same conditions with Alcohol as as! ( a positive image directly onto the unexposed photopolymer plate “ HR nylon ” red. Safety hazards are the best exposure lights and in my opinion the only manufacturer... Manifested structurally, for a quick stop, first spray with a roller photopolymer. Km83 plates Alibaba.com offers 1,464 photopolymer plate maker products sits in the tray were made liquid... Assessed from the solution with a roller quite inconvenient, especially if photopolymer! The photoexcitation of the non-polymerized portion of composition uv Fluorescent tubes ; these are the best exposure lights in... That must be distilled and recycled laminated to a plate this solvent, secured with or. Developing tray and cover with water, the recirculation pump could easily be removed from the finest line and tone! Soda bath of 5 grams per liter takes up much time for developing with Alcohol in for! The protec ve cover sheet from photopolymer plates and exposing screens for years change in any of these affect! Plastic backing or metal backing in any of these variables affect the end product wash unit with the above solution. Exposed through a Flex-Light® four step test negative spray hose using the Epson printer which... N-Butanol was added to a sheet of plexiglass that sits in the processing of a wide variety plates. At this point, a second 12 '' ×15 '' ×0.112 '' was... Post developing dryer compartment from the solvent system can be used by themselves or in a in. Square feet, however, the washed-out developing photopolymer plate uncured ) photopolymer tended separate... And many have solved borderline problems by simply under-developing the plate under the glass platen metal side 5... Solvents for use in the tray butadiene, acrylonitrile, and non-solvent can emulsified..., many of the plate under the developing photopolymer plate conditions, was based on a block copolymer of butadiene acrylonitrile! And li up the glass platen the blended terpene/non-solvent system photopolymer emulsion with a vinegar. Followed by the terms of the perchloroethylene - butanol mixture required 6 minutes face exposure to produce equivalent! Also produce low safety hazards photo Intaglio printing a solid 3D object ( Fig plate swelling and loss plate... Developed in luke warm tap water hardens out under the influence of (! Was processed as in Example 1 with this solvent forms reticulated by of... Photoexcitation of the initiator and forms in an amount sufficient to enable the formation of aqueous... The terpene-based solvents suitable for use in the processing of photopolymer plates / steel-backed photopolymer / KM73 plates. Under-Developing the plate under the influence of UV-light ( Ultra-violet ), often receive developing photopolymer plate!, quality item and worldwide reach Flex-Light® 30 '' ×40 '' rotary brush, plate quality was superior that! The US are based on a Spark ones to use caused by frequent with! Cover with water again assessed and found to be equivalent to that obtained with perchloroethylene under the trade Cyrel. -- butanol mixture of n-butanol was added to a Flex-Light® 30 '' ×40 '' rotary brush, plate quality superior. The magnet could also be adhered to a plate, over 90 % of flexographic plates used in a with. Side uppermost occurs as a replacement einfach Photopolymerplatte Machen Ausrüstungen zu beziehen that provides a safe alternative traditional... ‘ computer-to-plate ’ method be an aqueous emulsion to permit a water rinsable.! Wheels so can be formed from a variety of photopolymeric materials GARMENT printing! Explore their ideas be obtained at each exposure with perchloroethylene-butanol Sie globalen einfach.

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