Classification of Flexographic Printing

The flexo printing machine is currently laminated, and the unit style, satellite-style three structures.

Laminated flexographic printing machine

Stacking flexographic printing machine, also known as a stacked flexographic printing machine. The laminated is the simplest structure, the cheapest prices. It is also a flexographic printing machine with the most in the domestic printed market. The laminated (also superimposed) printing machine is an apparatus in which a plurality of extensive printing units is fitted in a layer of above. In a laminated printed machine, each print unit has its respective corresponding imprint cylinders, and its printing unit is independent of each other, arranged up and down, and covers a small area area.

There are 4 advantages of laminated printing machines:

1 can be single colour flexo printing machine, multi color flexo printing machine For the roll cylindrical printing machine, double-sided printing can be achieved by transforming the carrier, or double-sided printing can be achieved by means of a flip roller.

2 The carrier material can be a single sheet of paper, cardboard, corrugated paper and other hard materials, or a reel form, such as materials such as stasible paper and newspapers. The viscosity of the printed material must be accurately measured with a viscosity cup.

3 Post-printing workability strong printing unit and processing function can be flexibly configured according to the needs of users, and the unitary prism machine can facilitate mounting auxiliary equipment. After printing, the auxiliary joint processing can be performed, such as above, die cut, etc. Easy to operate and repair, with good use performance, can be used to measure tension due to pen.

4 Suitable short version of the mobile printing unit is more labor, one machine, less batch, special printed products that need to be used in delivery, and use such equipment with superiority.

5 Standardization of high-speed multicolor printing parts, generalization of components, and more product lines, have advanced in design. Automatic control systems such as tension, bit, and registration.

6 The spacing of the printed unit of short-range arrangement is small, easy to make 4 color flexo printing machine or 8 color flexo printing machine, so this machine can be used for trademarks, packaging boxes such as trademarks, packaging boxes, smaller printed materials, The printer is also better.

Machine group flexographic printing machine

The machine formula flexo printing equipmentis the same as the currently popular gravure printing machine, using the unit arrangement combination. At present, domestic and foreign manufacturers have proposed a platform concept, and can interchange the printing group or functional color group at this platform, which is very flexible to meet the needs of crafts. The printing substrate of the machine formula flexographic printing is wide range. It is convenient to operate, and the printing accuracy is within ± 0.2 mm. The printing speed belongs to the medium speed range, which is basically within 220 m / min. However, the width of the machine group flexographic printing machine is 400mm or less, and the industry is also known as a narrow flexographic printing machine. The unit flexographic printing machine is mainly used for the added value of the tobacco bag, the sticker, and more.

Main advantages are:

(1) The installation combination of the unit is convenient, and it is easy for post-printing.

(2) Suitable short version of the carprint.

(3) Change the running route of the material belt by the guide roller, you can achieve a printing double-sided.

Satellite flexographic printing machine

Satellite flexographic printing machine, also known as a shared imprint roller flexographic printing machine. Each printed unit is mounted between two wall panels around a shared imprint cylinder. The receiving material is laminated around the shared imprinting cylinder. Because the gear is directly driven, whether it is a paper or film, even if there is no equipment, it is still accurate, and the printing process is stable, often used to print color products. Some people have predicted that satellite printed will be a new mainstream of the twin in the 21st century.

Satellite flexographic printing equipment is a soft printing method to develop less and slowly in China. This is a big relationship with the industry's understanding and historical reasons. Satellite flexographic printing machines are imprinting roller utility printing machines, i.e., only one imprinting cylinder. This type of paper route cannot be changed, and the printed line is short. However, since the need to share the mid-shaped press cylinder is high, the machine will seem very cumbersome when the number of units is too much.

However, the advantages of satellite flexographic printing are actually very large, except for the advantages of high printing accuracy and fast speed. At the time of printing large-scale color blocks (field), there is actually a very large advantage, this is the same as the gravure printing. Since the ceramic scribe roller is used to accurately control the amount of ink, when the flexographic printing method is printed, it is only 1.2g of about 1.2g of the ink per square meter without affecting the color saturation. The gravure printing requires 3G / m2 or even higher, coupled with the use of solvents, and the actual cost of the ink is much higher than the flexo mode. Another advantage is that the user is worthy of concern - the problem of energy consumption, due to the flexographic printing structure, ink, the amount of ink, etc., does not need too much thermal energy, you can completely dry the printing after printing . So usually an 8-color flexographic printing machine, under the premise of 300 m / min, the electric heating mode used is not more than 80 kW / hour. Other printing methods usually require more than 150 kW / hour energy consumption, even higher. This can be said to be a very good news for the current domestic electricity situation is not optimistic.

Of course, the satellite flexographic printing machine has its own disadvantage. Mainly in the printing reduction, although it can be printed to the 175-wire product, the associated cost is increased, and the whole application is equipped with offset printing, gravure, etc., there is still a gap. When printing a product of a high line, it is weak. This is a gentle disease, and it is also the most important place.