What are the types and characteristics of flexo printing machines?

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The unit-type flexo printing machine can be easily installed with auxiliary equipment. After printing, auxiliary joint processing can be carried out, such as glazing, die cutting, etc. . It is easy to operate and maintain, has good performance, and can measure tension with a dyne pen.

What kinds of Flexo printing machines are there? What are the characteristics of each of these Flexo printing machines? Today, Deguang will lead you to explore the answers to the above questions. Interested partners may wish to take a few minutes to take a look with me.

Basic introduction of Flexo printing machine

The Flexo printing machine uses fluid ink with strong fluidity. The ink is transferred to the graphic part of the printing plate by the ink fountain rubber roller and the anilox ink transfer roller and makes it inked. The ink is transferred to the substrate, and finally, the drying side completes the printing process.

Flexo printing machine classification

The printing part is the core of the Flexo printing machine. The arrangement of the printing part directly affects the operation performance, the quality of the printed product, the printing speed, and the applicable range of printing. According to the arrangement of printing parts, the Flexo printing machine can be divided into three types: stacked type, satellite type, and unit type.

Satellite Flexo printing machine

The satellite type Flexo printing machine sometimes becomes a shared impression cylinder type Flexo printing machine. The printing units are mounted between two wall panels around a common impression cylinder. The substrate is registered around a common impression cylinder. Because the gears are directly driven, whether it is paper or film, even if no special control device is installed, the overprinting can still be very accurate, and the printing process is stable, and it is often used to print color products. Some people have predicted that satellite flexo printing will be the new mainstream of flexo printing in the 21st century.

For satellite flexo printing machines, if you want to know more, you can check out the following article: Analysis of the current situation of satellite flexo printing machine industry

Its main disadvantages are:

(1) The material to be printed passes through the printing machine once, and can only complete single-sided printing. Although the satellite-type Flexo printing machine can print on the other side through the guide roller, it is very difficult to achieve the image registration of the two-sided printing due to the excessively long route of the material belt, and its stretching deformation is increased and uneven. Therefore, on the satellite-type Flexo printing machine, the film material is generally used, and after printing, it is sealed by longitudinal hot air to make a packaging bag with patterns on both sides.

(2) The distance between the printing units of the satellite-type Flexo printing machine is too short, and the ink is easy to get dirty when the ink is not dried well. The UV and UV/EB flexo inks developed in recent years can be dried instantly after being printed by UV or UV/EB light, which basically solves the problem of smearing.

Flexo printing machine

Unit type Flexo printing machine

The unit-type Flexo printing machine consists of a line-connected Flexo printing machine, which consists of 4-8 printing units that are independent of each other and are arranged horizontally and driven by a common power shaft. The unit-type Flexo printing machine only supports one printing unit for each pair of additional plates, so the unit-type Flexo printing machine can be designed to adapt to different drum heads.

Its main advantages are:

(1) The installation and combination of the unit are convenient, and the post-press processing is easy.

(2) Suitable for short-run live printing.

(3) By changing the running route of the material belt through the guide roller, it can realize double-sided printing at one time.

Laminated Flexo printing machine

Stacked Flexo printing machine, sometimes also called stacked Flexo printing machine. The independent printing units are stacked on top of each other, arranged on one or both ends of the main wall panel of the printing press, or the printing units of various colors are installed on the rack. Each printing unit is turned by gears mounted on the main wall panel. Stacked mimeographs can print 1-8 colors, but usually 6 colors.

Stacking presses have 4 advantages:

1. The printing materials of the laminated Flexo printing machine can be widely used in rigid materials such as single-sheet paper, cardboard, corrugated paper, etc., or in the form of rolls, such as self-adhesive paper and newspapers. The viscosity of the printed material must be accurately measured with a viscosity cup.

2. Single-color, multi-color printing is possible. For web-fed printing machines, double-sided printing can be realized by changing the conveying route of the substrates of the stacked Flexo printing machine, or by means of reversing rollers.

3. It is suitable for short-run live printing units with many stations, and one machine is multi-purpose. For special printing products with small batches, urgent delivery, and many stations, the use of stacked Flexo printing machines has advantages.

4. The post-press processing capability is strong. The printing units and processing functions of the stacked Flexo printing machine can be flexibly configured according to the needs of users. The unit-type flexo printing machine can be easily installed with auxiliary equipment. After printing, auxiliary joint processing can be carried out, such as glazing, die cutting, etc. . It is easy to operate and maintain, has good performance, and can measure tension with a dyne pen.

5. At present, high-speed multi-color printing parts are standardized, components are generalized, and the degree of product serialization is relatively high, and the design is advanced. Automatic control systems such as attached tension, edge position, registration, etc.

6. The spacing between the imprinting units of the short-distance flexo printing machine is small, which is convenient for multi-color overprinting, so this machine can be used to print small prints such as trademarks and packaging boxes with high precision. The effect is also better.

Features of Flexo printing machine

The reason why the Flexo printing machine develops at a constant speed is that in addition to the technological breakthroughs in the sheet and ink, its own characteristics are an important reason for attracting users.

1. The structure of the machine is simple, so the Flexo printing machine is easy to operate and easy to maintain. The price of a Flexo printing machine with the same function is about 30-50% of an offset or gravure printing machine.

2. The causative material has strong adaptability, and the Flexo printing machine can obtain satisfactory printing results from 0.22mm plastic film to 10mm corrugated cardboard.

3. The embossing force is small, about 19.6-39.2N/square centimeter. The Flexo printing machine is especially suitable for the printing of substrates such as corrugated paper that cannot withstand excessive pressure.

4. The printing cost is low, mainly because the Flexo printing machine is cheap, the plate-making cost is low, and the printing process of the Flexo printing machine (Full process control of flexo printing)

, the medium-break rate is low, and the production cost is 30-50% cheaper than gravure printing.

5. The quality of the printed products is good. Flexo printing machine adopts anilox ink transfer roller short ink path inking system, which not only simplifies the structure of inking system, but also can realize quantitative control of film thickness. The breakthrough in high-performance photosensitive resin plate technology has greatly improved the resolution and dot reproducibility (up to 1-95%) of the Flexo printing machine printing plate. Flexo printing can achieve 300 lines/in color level draft printing, and the printing effect is comparable to offset printing and gravure printing.

Well, the above is all about the Flexo printing machine that Deguang brought to you today. The Flexo printing machine is mainly divided into three types: stack type, unit type and satellite type. Low cost, good quality printed products and popular in the market.

If you want to get more information about flexo printing machines you can check it out: How does a flexo printing machine work?

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