Các loại máy in flexo và nguyên tắc hoạt động của máy in flexo

Based on actual needs, ensure the use area design, the number of colors and paper sizes that flexo printers are divided into different types. Each type of printer is used for each specific purpose, suitable for all different types of prints.

Classified by number of printing colors, Flexo printers are divided into the following main types: 2-color printers, 4-color printers, 6-color printers:

 Flexo 2 color printer: The number of colors is small, so this machine is only used for simple carton packaging, the prints are only 1.2 colors and do not require too high print quality.

 4-color Flexo Printer: This is the most commonly used machine because 4 colors are easy to mix into many different shapes, creating beautiful print quality. The stacked or vertical printer can be used.

 6-color Flexo Printer: A multi-color flexo printer, this machine is often used to print colorful packaging, combined with other processing parts such as cutting machines, die-cutting machines, etc. Besides, large print speed, suitable for bulk printing.
 

Classified by printing paper sizes available: 320mm Flexo printer, 900mm Flexo printer and SBY-CB1100 paper box printer:

 320mm flexographic printer:

Relatively small size, economical price, suitable for businesses with not large factory sizes. Capable of printing from 2 colors to 10 colors depending on the needs of use and still ensure good print quality. This printer can print on many different materials like paper, aluminum film, iron film ...

Flexo printer - sheet type 900 mm:

It is a great choice for businesses that often use printing on flat media.

This printer has 4 popular models: SYB-900-2, SYB-900-3, SYB-900-4, SYB-900-5. They offer colors from 2 to 5 colors corresponding to each model, the back of these flexo printers are equal but the overall size and length vary with each model.

Boldy box printer SBY-CB1100

This printer has the popular 3-color printing feature and can only print carton boxes so it is suitable for service types such as pizza box printing or household wrap.

Rely on color printing capabilities to divide the type of flexo printer. Currently, there are devices on the market that meet the printing needs from 2 colors to 10 colors depending on the purpose of use with different characteristics.

Classify Flexo printers by design

Classified by design, Flexo printers have 2 types: Vertical printer and horizontal printer.

 Flexo printer in stacked form: This is a type of printer where rollers (ink trough, anilox, print, press) are stacked on top of each other. It can be folded on either side of the media. This type of printer has from 1 to 4 colors, if you roll the rollers on both sides of the media, you can print up to 8 colors. Thanks to this arrangement, you can print on both sides at the same time.

Flexo Flexographic Printer: For Flexo Flexographic printer, the rollers in the machine are arranged in a horizontal row, the color stations are connected in a long line. This printer can also print in multiple colors and with 2-sided printing thanks to the paper converter At the same time, users can also easily combine with other parts such as cutting machines, closing, laminating, ... with Flexo lying flat format.

The Flexo printer structure consists of many different parts, changing according to the needs of use: Input paper rolls, color stations, drying units between color stations, parts for cutting printouts after completion, ....

In particular, the most important is the color station, this is where the printed image is printed on the surface of the printing material. Each color station consists of four types of rollers (round lots): a fountain roller, anilox roller, an printing cylinder or plate cylinder, and a transfer batch. impression cylinder or impression cylinder.

Or can be divided into: Ink transfer system and printing system. In particular, the ink transmission system (including ink troughs and anilox batch) takes care of taking and transmitting ink to anilox, printing system (including batches of printing ink and printing media) is responsible for printing pictures onto materials. print.

 Metering Roller (Metering Roller): is a circular axis partly submerged in the ink trough. Effect of moving ink from ink trough to anilox shaft. Today, it is also known as the Metering Roller.

Anilox Roll (Anilox Roll): is a metal shaft with a surface with a concave and protruding surface with many small cells acting as ink wells. When ink is fed from the ink roller, ink droplets will be stored in ink wells on the anilox axis.

Devision blade (Doctor Blade): To prevent excess ink from sticking on the surface of anilox shaft, it may smudge the prints; An ink brush is used to remove ink from the surface of the anilox shaft. Squeegee sticks are made of steel or polymer.

• Plate Cylinder: Made of rubber material to attach the mold to the surface with tape, magnetic field or strong locking pins.

Flexographic Printing Plate: Made of photopolymer. Printing plates can be made by photochemical, CTP or laser etching. The thickness, stiffness or softness of the die depends on the media (paper, carton or film).