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  • What Determines the Quality of a Flexographic Printing Plate? 21-04-22

    The flexographic printing plate can be considered the heart of flexographic printing as it has a decisive influence on the print results and productivity of the label printer. There are more than 40 flexographic printing plates for label printers on the market, but they all have different characteristics, printing behaviour and manufacturing processes. As a result, label printers are often faced with the extremely difficult task of selecting the right plate. With this in mind, Gallus spent several weeks studying and comparing the printing characteristics of all the top flexo printing plates. The results and evaluations ranged from the unusual to the unusable. Even if the perfect flexographic plate is not available in all areas, it is possible to identify a small number of top plates for the label press. The basics Most flexographic printing plates are now made of photosensitive polymers. Much fewer plates are made from rubber. The process of developing photopolymer printing plates involves the use of solvents, water and heat development. Most photopolymer aniline printing plates are washed off with solvents or water. Flat top dot In the printing plate industry, there is a current trend towards flat-top dot technology. The dots on these plates are flat at the top rather than rounded, which results in more consistent and accurate print results. "Conventional" digitally exposed photopolymer flexo printing plates usually have rounded printing dots. This is due to the presence of oxygen, which negatively affects the polymerisation of the photopolymer during UV exposure, causing the dots to shrink. The oxygen disrupts the polymerisation of the photopolymer, resulting in a rounded dot on top. Screening out the oxygen allows for the desired polymerisation, resulting in a flat-topped dot. There are several ways to remove destructive oxygen from the exposure process.  Four options used by plate manufacturers are listed below. 1.Laminated laser imaging films prevent direct contact with oxygen during UV-A exposure. 2.Film (laminate) is laminated to LAMS and prevents direct contact with oxygen during UV-A exposure. 3.Pre-exposure with UV-LED removes oxygen while polymerising the upper plate layer. 4.During a conventional UV-A exposure, the plate is filled with an inert gas (nitrogen) to displace oxygen. What determines the quality of a flexographic plate? All presses have their own specific requirements for flexographic printing plates. While one may be focused on very fast production times, another may only be concerned with print quality. Others may place great importance on the ecological aspects. Generally speaking, pre-press and plate handling have a strong influence on the printing result. However, the most influential factor is the plate, which is predetermined and cannot be changed by the user. During the print tests conducted, aniline printing plates from top manufacturers were printed, checked and compared under identical conditions. These test...

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  • Advantages of Flexographic Printing 21-05-10

    Flexographic printing is still the most common printing process in the label industry. Without proper plates, and therefore proper platemaking equipment, there would be no flexographic labels. Industry leaders stay on top of trends to ensure that labels are printed in the fastest time and highest quality. Printing is accomplished using flexographic plates that were originally made of natural rubber, then synthetic rubber, and now primarily made of photosensitive polymers. Flexographic printing is done on paper, cardboard or plastic film. Low viscosity liquid inks are used for printing. These include water-based inks, solvents and ultraviolet (UV) curing inks. Non-absorbent substrates (films) are mainly printed using UV and solvent-based inks, but increasingly water-based inks are used due to their ecological aspects and improved adaptability. Flexographic printing Flexographic printing or flexo printing is a technique that uses flexible letterpress plates for batch printing. The manufacturer first applies ink to the printing plate and then to the surface. It is a low-cost printing method that has come a long way since the introduction of direct laser engraving in 1970. Lithography or litho printing is a printing method that was originally based on a non-mixable material of oil and water. Lithography can be used for anything that requires vibrant colors and is printed in large quantities. However, the printing method you are using needs to be not only practical but also cost-effective. For custom printing, flexographic versus lithographic printing is a long-standing debate because it is the norm in the printing and packaging industry. But when we talk about corrugated boxes, we still need bulk. Bulk printing is a tedious task and requires some level of optimization. Factors such as the budget at hand, time constraints, print quality and how the boxes are used (shipping or retail) all come into play. Printing Process Flexo printing requires initial setup costs. flexo uses a flexible plate mounted on a cylinder. The manufacturer uses a partially submerged ink roller to apply the ink to the anilox roller. The anilox roller is a hard cylinder, usually made of steel or aluminum, with a ceramic outer layer and numerous dimples. The manufacturer uses the anilox roller to distribute the ink evenly across the flexographic printing plate. In the flexographic printing process, the ink is metered onto the surface of the plate by a chrome or ceramic engraving/etching roller with uniformly distributed cells (size, shape and depth), similar to a gravure cylinder. This roller is called "anilox". The corrugated board runs directly between the embossing cylinder and the paint rollers. Finally, the manufacturer passes the substrate through the dryer to prevent soiling. Flexographic printing can be used for everything from food wrappers to auxiliary containers, such as cereal boxes to shipping cartons. The photopolymerizable material on the flexographic plate is cros...

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  • Flexographic Product Packaging Design 21-05-10

    Digital flexographic printing is a plate-making technology that uses direct laser exposure of flexographic photopolymer plates. It has the following advantages. Advantages of digital flexographic printing ①Simple process and greatly reduced preparation time. ②Exposure time is independent of pattern type and dot density. ③Replacing the separator paper with a shaded homochromatic material eliminates dot distortion caused by separator paper handling. ④The main exposure is free from diffuse reflection of light caused by dot gain phenomenon, and clear dots can be obtained. ⑤ Realization of direct plate making without soft film does not result in a layout covered with stains and defects. According to the characteristics of digital flexographic printing plates, digital flexographic printing plates can obtain fine, clear and high-quality flexographic plates. Therefore, the use of digital flexographic plates is imperative in order to improve the quality of flexographic printing. In order to make the designed products meet the printing requirements, flexographic product packaging designers should pay attention to the following points when designing. 1. In the use of color, should try to make the color bright, bright If the design of the product is overprinted with too many colors, it will lead to dark colors. Due to the larger amount of dot expansion in flexographic printing, the loss of small dots is more serious, too many overprinted color versions of the pattern in a certain area, each color version of the dot expansion or loss, dot expansion or extinction of the phenomenon will occur. Repeated flooding, so that the picture is dim, lack of highlights and mid-tones part of the point transition is not uniform, very shameful. Therefore, in the same complete expression of the design sketch conditions, the number of printing colors should be reduced to the minimum possible, which is very beneficial for mass production printing operations, quality control and cost control. 2. Try to use spot colors to make up for the lack of four-color printing Many customers of packaging products always require designers to use yellow, magenta, cyan, black four colors in their product design overlay printing more than ten colors of manuscript, but sometimes not only can the three primary colors or the regular four colors can simply show the entire color world, additional port must have a long and short spot color, and is a long and short effective way. One-sided exaggerated overprint overlays are undesirable. Aniline presses are ideal for large area fields and spot color printing. Aniline presses are mostly six or eight colors, and only four colors can lead to idle units, and four-color printing is better than offset or gravure, compromising the quality of flexographic printing. Products. 3. Should not use too thin lines and too small text Because the flexographic printing process will be deformed, the lines are too thin, the text is easy to this phenomenon, and the edge dec...

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products
aolide brand flexographic printing plate making machine
  • Item NO.:

    ALD-1200
  • Payment:

    30% T/T deposit, 70% T/T balance before deliv
  • Market Price:

    7900
  • Product Origin:

    China
  • Color:

    silver
  • Shipping Port:

    Shanghai
  • Lead Time: 

    20 Workdays
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Product Description

1.Introduction:


a.The series equipments including washing/exposure/de-tacker/drying unit. The upper unit is washing unit, and then is exposure unit,detacker unit,drying unit. 


b.This equipment is the shell adopts # 304 stainless steel manufacturing, strong, beautiful and durable.


c.The way of wash is to rotate brush,the benefits of rotate brush is: when wash plate you also can stir solvent, makes solvent more evenly; Not only the brush pressure can be adjusted, and the pressure of solid plate of the platform also can adjust.I it helps to make more fine flexible plate. Rather than the brush of rotating machine wash plate not have this feature. 


d.Exposure using imported UVA lamp, This unit configuration radiator thermostatic tubes. Can ensure the precision of the plate making, prevent high temperature heat led to breathe in unstable conditions.


e.Light treatment unit is using imported UVC lights (if the size of the equipment is small, UVC lamp is made in China, because the lamp of no small import UVC size). Light treatment by corrosion durable drawer of epoxy board, prevent ozone corrosion of metal. This unit configuration powerful exhaust device, used for discharge light processing caused ozone.


f.Drying unit is set 2 drawer drying, the hot air circulation structure, can guarantee that all around the evenness of temperature, temperature than ≤±5℃ negative difference within. Automatic timing, automatic constant temperature, and alarm, configure automatic constant temperature exhaust function, and can effectively guarantee and the drying temperature conditions, automatic emissions caused by dry timely and penetration in the flexible plate of ozone in chemical solvents, the drying speed, the energy conservation.


g.Generally it is better to save space if you purchase this all in one plate making machine. But the large size,it needs to adopt split type machine. 


2.Size:


1200mm x 800mm,900mm x 600mm,750mm x 450mm,420mm x 300mm etc.



 If any interest,please feel free to contact me:

    Skype:szaolide001

    Whatsapp:008615051421690 

inquiry now
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