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What Problems Should Flexographic Press Printing Pay Attention to
Date:2018-12-06 Views:15
Flexo Printing Machine manufacturers today introduce to you that the drying device of the printing press is divided into two levels. One is intermediate color. They also call for the accident to keep the color layer as dry as possible before the next printing unit. In order to eliminate the solvent layer after printing with various inks, there may be accumulation in the process.

Through the research data of foreign countries, we can know that it is easier to get the desired printing results under the clean environment of flexographic press than under the poor conditions. Therefore, keeping the internal environment sanitation as far as possible can also reduce the cost greatly when using Flexo Printing Machine.

Ultraviolet lamp shall be used for flexographic press life in accordance with the manufacturer's rated life. When exceeding the rated life of 1000 - 2000 hours, even if the lamp emits light, the tube should be replaced, because the emission capacity of ultraviolet UV lamp is far from meeting the requirements.

Why Water-based Ink is Used in Flexo Printing Machine

Water-based ink, which does not contain volatile organic solvents, greatly reduces VOC (organic volatiles, the same below), thus reducing air pollution, improving the environment of printing operators, and conducive to the health of workers. It can completely eliminate some toxic and harmful substances in solvent-based ink, eliminate the harm to human body and the pollution of packaged goods, and improve the overall environmental quality. It is especially suitable for packaging and printing products with strict hygienic conditions such as tobacco, alcohol, food, beverage, medicine, children's toys and so on. In addition, it can not only reduce the fire hazards and hidden dangers caused by static electricity and flammable solvents, but also reduce the toxicity of printing surface residues, and it is convenient to clean printing equipment.

At present, there are three types of resin printing ink commonly used at home and abroad: solvent-based ink, water-based ink and ultraviolet light curing (UV) ink. Water-based ink (or water-based ink) is mainly suitable for corrugated paper, packaging paper and newspaper printing with absorption.

As far as the main components of resin printing ink are concerned, they are all composed of colorants, resins, solvents and auxiliaries. Because the resin plate printing press uses mesh roller to transfer ink, the viscosity of resin plate printing ink can not be too high, generally between 0.1 and 10.0 Pa.s.

Flexible printing, also known as flexographic printing, is a printing method that uses flexographic printing and transfers ink through screen ink roller. The photosensitive resin plate with thickness of 1-5mm is generally used for printing plate.

Because the ink used in flexographic press is green and environmentally friendly, it has been widely used in food packaging and printing with a broad prospect.

Flexo Printing Machine is agile, in addition to plate, ink skills break, its own characteristics are the main problem of recruiting users.

1. The structure of the machine is simple, so it is convenient to operate and easy to maintain. Flexographic presses of the same function cost about 30-50% of offset and gravure presses.
2. The adaptability of genetic data is strong. From 0.22 mm plastic film to 10 mm corrugated cardboard, the printing effect can be satisfied.
3. The impression force is small, about 19.6-39.2N/square centimeter, especially for the printing of the impressions which can not accept the high pressure, such as corrugated paper.
4. Printing costs are low. The main problems lie in the low price of the machine, the low price of plate making, the low rate of paper loss in the process of printing, and the production cost is 30-50% cheaper than gravure printing.
5. Good printing quality. Choosing the short-path inking system of the screen roller can not only simplify the inking system structure, but also accomplish the quantitative control of the film thickness. The breakthrough of high-performance photosensitive resin plate technology greatly improves the resolution of printing plate and the reproducibility of dots (up to 1-95%). Flexographic printing can complete 300 lines/in multi-color hierarchical printing, printing effect is very good.