printing machines

Wide Web & Narrow Web Flexo Printing: Which is Better?

In today’s competitive environment, printers need to be as competitive as possible. To be competitive, one needs to choose the right tool for the right job. Wide web flexo press and narrow web press machine both has its advantages and disadvantages. At the end of the day, it comes down to what your main goal is.

 

For instance, is your main goal to be as environmentally friendly as possible to save cost from pollution emission and to build up a good eco- friendly company image? Is your main goal speed since most of your job orders are very long runs? Is your main goal for printing labels at small quantity?

 

Printing Press Design

The primary difference between narrow web and wide web is more than just the printing width. Speed is another main difference between the two, wide web flexo press tends to run at speed above 300 meters/min, as for narrow web usually runs between 150 ~200 meters/min. The difference in press speed impacts the formulation of the inks being used. Web wide usually uses faster drying solvent when compared to narrow web. When ink viscosities on a wide web is usually around 25 secs, #2Zhan and narrow web typically are around 35 secs. The narrow web tends to transfer a thicker ink volume onto the substrate.

 

In terms of press design, wide web is dominated by the central impression design being able to hold the tightest and finest registration, and most narrow web press has a in-line design. This affected the drying designs where central impression often has in-between layer dryers and a final post dryer. As for in-inline design often only have in-between layer dryers and doesn’t have a final post-drying unit. Wide web typically uses chambered doctor blade inking system and narrow web uses fountain rollers inking system. Fountain rollers systems will cause ink to be more exposed to the open air. As result, to be more vulnerable solvent loss and pH variable due to the ink evaporation.

 

Selecting Printing Press Machine by Application

In general UV ink application are found more on the narrow web, as the cost of UV ink application is greater when compared to solvent and water-based ink application. In terms of press cost, where the higher cost curing systems needed to be added. In terms of the operating cost, where UV curing requires a lot more energy and the cost of the UV ink itself is higher. Therefore, UV application tends to be installed on the narrow web.

 

The benefit of UV ink is that it dries only under curing, where the photo-initiator within the ink goes through chemical polymerization under UV radiation. Therefore, very fine anilox could be used as the ink doesn’t plug the cells of the anilox, as result producing finer and sharper images. Another benefit of UV ink is that it does not contain solvents, in terms of VOCs emission it is much more friendly.

 

You Could Consider UV Narrow Web Press If…

  • Narrow printing width
  • End product requires higher quality images.
  • Order volume is relatively smaller.
  • More variable in print design
  • Printed product could be sold at a higher price.
  • Regulation that places high fees on VOCs emission

 

You Could Consider Solvent / Water-Based Wide Web Flexo Press If…

  • Wide printing width
  • End product doesn’t require top quality images
  • Large order volume
  • Less variability on print design
  • Printed product is more price sensitive
  • VOCs emission regulation is less mature

 

There is not an absolute better solution. Select a suitable press machine type based on the end application and the goals that you are trying to achieve.

 

If you have question or requirement of wide web flexo press and other printing presses, please do not miss Kuen Yuh Machinery Engineering Co., Ltd. – they are the professional manufacturer of specializing in a wide range of flexo machines. Now, check out their website and contact with KYMC for more printing press machine information!

 

Article Source: Kuen Yuh Machinery Engineering Co., Ltd.

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Tips to Choosing the Perfect Flat-Bed Printing Machine

A flat-bed printing machine is popular across a variety of printing niches including signage, graphics, photo shops, and others. Choosing the right flat-bed printing machine is critical to future production and operation with the machine. It will help ensure client satisfaction by producing the best possible results. There are a variety of factors to consider when making a significant investment into a business; however a few key variables stand out when selecting a printer.

 

One of the most important characteristics to consider is the resolution. There are two different ways to measure the resolution of a flat-bed printing machine. The first is to print with the highest resolution of the machine while simultaneously printing the smallest letters. The second is to not move the printed materials after they are completed. Instead, leave them in the printer and print one more time to see whether multiple prints will actually match. This will help measure the printer’s resolution in terms of gears and slide ways.

 

Most people who purchase a flat-bed printing machine will use it on and ongoing basis. This makes it essential to purchase a continuous working machine to generate maximum profit. For continuous work, the printer must not only be durable but have the features and functionality to operate continuously for at least eight hours per day. Depending upon the setup of the printer, there are a number of factors which will contribute to whether or not continuous operation is feasible.

 

A common factor many people overlook is the inks. It is important to remember that most flat-bed printing machines are designed to work with specific inks. It is important the ink can be used on a wide variety of printing material applications, provide vivid color, and dry quickly. Inks may have additional properties such as anti-scratch and water resistance depending upon the application.

 

Some printers are designed with inherent limitations such as the need for pretreatment and a limited variety of printing materials. To get the most out of a printer, it is important to have the ability to print on as many substrates as possible. A quality printer will be able to print on wood, stone, PVC, vinyl, leather, iron, acrylic, plastic, aluminum, ceramic, and crystal glass. Many of the best flatbed printers can print on a number of additional materials as well. If a material must be pretreated, it will slow down the overall print time and minimize the cost effectiveness of the device.

 

Smooth Machinery Co., Ltd. is a famous printing machine manufacturer in the heart of Asia – Taiwan. Our machines include: CNC auto reel-fed Offset machine, Letterpress machine, Silk screen printing machine, Die-cutting machine, Hot-stamping machine, Label printing machine, Label web slitters, Dryer tunnel rewinders and many other printing machine accessories are also available. If you need more information about flat-bed printing machine and other printing machines, welcome to visit our website or contact with Smooth Machinery directly!

 

 

Article Source: http://EzineArticles.com/7988136

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