How To Narrow The Gap Between Actual Printing And Proofing Of Small Hot Silver Stamping Magnet Box Flexo Printing

How to narrow the gap between actual printing and proofing of Small Hot Silver Stamping Magnet Box flexo printing

Printers are looking for ways to improve and simplify production processes, whether they are offsetting, flexographic or digital, in response to shrinking profit margins. One way to do this is to ensure that the finished product meets the customer's expectations, so as to avoid remaking and reprinting. This means that an accurate, high quality contract proofing is very critical.

Proofing is always a headache in flexographic printing. One could argue that the best way to show your customers what the finished product looks like is to print it. However, this approach is not easy to achieve, not only the cost is high, and the cycle time is long. With other printing processes, relatively simple inkjet proofing can often be used to simulate the effect of actual printing. And flexographic printing is special, dot expansion law and screen Angle are different from other printing methods, in addition, flexographic printing is also widely used in spot color and metal color printing.

A common problem with flexographic proofing is that the main substrate used in the proofing process is white paper, which is rarely used in the final product of the flexographic printing market. The only way to get a real proof on the actual material is to wet proof, which is beyond the cost range of many printers. The alternative technology is the use of specially developed technology, with high standard inkjet press can accurately reproduce the real printing effect.

Therefore, for flexographic printing, the technical requirements are relatively high. Printers should have a RIP capable of driving accurate and reliable output devices. The RIP of professional flexographic printing proofing system can reproduce the flexographic printing effect involving many variables, and then output a contract quality image to the proofing machine. The quality of the proofing is very important, and Epson equipment has the largest share of the proofing market because of its unparalleled quality. The Stylus Pro 4880, 7880, 9880 and 11880 are the latest of four new 8-colour printers from Epson. They all use UltraChrome K3 technology in bright magenta ink to enhance images. The print-heads also use award-winning MicroPiezo technology, which also ensures high quality proofs are produced at a reasonable cost.

FlexoProof, from GMG, recreates the performance of actual substrate materials, such as corrugated cardboard. In fact, any low-quality paper can be simulated by changing the image noise. All along, GMG's Stylus Pro printer takes advantage of the transparency and density of the UltraChrome K3 ink system, as well as the precision of its micro-piezoelectric print head technology with the precision of UltraMicro Dot ink jet.

StarProof System from Compose System has solved complex problems such as dot structure by analyzing the shape and Angle of CMYK dot. This analysis is provided by the Actual Dot system, which is capable of reproducing the original mesh and dot shapes at proofing resolution. When sent to a high resolution printer, such as the Epson Stylus Pro4880, it produces high-quality print with sharp dots, sharp images, accurate colors and fine layers.

Flexographic mesh points usually require small adjustments to the height or width of the mesh points to compensate for the expansion of the mesh points during printing. StarProof's Dot Distortion tool produces the correct mesh points based on the distortion ratio or expansion ratio of the original draft, under the control of the user, and expands the distortion points to the correct original size. StarProof also compensates for the loss of small dots during flexographic transfer during the printing process. By inputting the size value of "Dot Lost", the mesh dot smaller than this size will be removed and will not appear on the proofing proof, which conforms to the actual situation of printing.

Most Rip processes spot colors in the same way, that is, through software analysis, converting spot colors to the nearest CMYK value. Advanced Proofing unit of Xante OpenRIP Flexo is capable of proofing printing presses and proofing clients in complex or specific colors. It is also possible to change the spot color when Rip, which can reduce the amount of ink needed for overprinting, and preview the effect of limiting, overprinting, and hollowing. OpenRIP uses KoolKolor inkjet proofing technology for ICC color management and color management files for the target device to simulate the final printed product.

GMG's FlexoProof supports all standard spot color systems, such as the Hexachrome or Pantone spot color libraries, that come with the product. An image can be divided into up to 64 colors, and there is no limit to the total color separation of a printed variety. These colors are stored in the database, and users can add colors to the database as needed. With the FlexoProof solution, color opacity and associated printing order can be specified on demand, and even white backdrops can be specified as spot colors.

The early problems of adding mesh can also be solved with GMG's FlexProof. In addition to handling almost all industry standard prepress data formats, FlexoProof can also handle final 1-bit data, such as that obtained by CTP RIP. These data are used to initially retain the network information for color management, rather than go to the network information. In this way, errors such as tint discontinuity, moire and trapping can be detected before the plate is exposed.

The ability of RIP to produce high quality effects is one issue, the final proofing effect may be another. If the color is super good domain, the proof will be completely different from the imagination. The proofing machine needs to be able to output the proofing system made changes. Epson large-format printers have a strong reputation for color performance, thanks to the outstanding performance of UltraChrome K3 ink, which has some water resistance, dries quickly after printing and has excellent light resistance. Instead of using a single black, Epson UltraChromeK3 ink uses three black inks in different concentrations to achieve a more stable and accurate gray level balance, and uses less colored ink for more precise color control. In addition, the printing resolution of up to 2880x1440dpi can fully match the output effect of RIP.

Through high quality contract proofing, the gap between proofs and finished products is gradually narrowing. The closer the proof output of the proofing equipment and the final product effect, the happier the customer will be. Despite advances from specialty Rip vendors such as GMG, Xante and Compose System, as well as from Epson inkjet printers, flexo proofing is taking a big step forward, but it's not perfect yet.