In the past decade, many new technologies have emerged in flexographic printing, such as closed doctor blade box, ceramic anilox roller, gearless servo drive, UV printing, high pigment ink, thin plate printing and digital plate making technology, which ensure the steady improvement of flexographic printing quality. Flexographic Printing and Its Cost
The application field of flexographic printing in China has increased significantly in the packaging of products such as liquid packaging boxes, paper cups, folding cartons, beverage bags, milk boxes and cigarette labels. Flexographic printing technology is also used in the printing of flexible substrates such as paper, self-adhesive labels, plastic films and aluminum foil.Flexographic Printing and Its Cost
Integrating different printing technologies and processes into the on-line production of a flexographic press to obtain integrated production effect will achieve good economic benefits. Compared with single machine operation, the production cost is greatly reduced. Specifically include:Flexographic Printing and Its Cost
1. After the surface polishing and film coating processing are online, a special polishing machine can be saved, which not only reduces the equipment investment, but also saves the expenses of machine operators, and can obtain high profits.Flexographic Printing and Its Cost
2. After the integrated production of bronzing, embossing, indentation, die cutting, waste removal and other processes, in addition to the above advantages, it also saves the installation and operation site of machinery and equipment and the logistics transportation and stacking between processes, improves the labor productivity and greatly reduces the labor intensity.Flexographic Printing and Its Cost
3. Flexographic on-line production: offset printing unit, gravure printing unit and silk screen printing unit are added between the units. A printing product is mixed and printed by several different methods. Flexographic Printing and Its Cost
The product has a variety of characteristics and good picture quality, more anti-counterfeiting characteristics, simply and economically meet the requirements of customers, with less investment and good effect.Flexographic Printing and Its Cost
4. Integrated production makes the production preparation and production planning process extremely simple. The short processing cycle combined with high-speed production means a very short response time to the order, making the delivery faster, more timely and more accurate, and more favorable to attract customers.Flexographic Printing and Its Cost
Combined production reduces the cost of personnel arrangement, product storage and logistics. The elimination of excessive storage reduces the working capital used, is conducive to the investment in enterprise reproduction, and brings vitality to the operation of the enterprise.Flexographic Printing and Its Cost
Flexographic printing process is different from other printing processes. Flexographic printing shows certain advantages in production cost, economic and social benefits:Flexographic Printing and Its Cost
Flexographic printing has the strongest adaptability to printing materials. It can be widely adapted to paper, composite materials, self-adhesive, gold, silver and aluminum foil, various plastic films and even corrugated board, regardless of its thickness, thickness and surface ink absorption performance. Flexographic Printing and Its Cost
There are many kinds of printing methods that can not be compared with any other printing method. Although it is impossible to print all kinds of printing materials on one machine, as long as flexographic printing method is adopted, better printing effect can be obtained.Flexographic Printing and Its Cost
The printing pressure in flexographic printing process (because the plate is flexible and elastic) is very small (known as: zero pressure), plus the excellent stability of the ink amount on the mesh hole of the textured roller, it is possible to print excellent products. Flexographic Printing and Its Cost
For example, in 2003, China participated in the international flexographic printing quality evaluation, and the snow picture printed with 202 wire flexographic printing won the Bronze Award. In 2005, jinshengtang folding cigarette box won the silver award in the quality evaluation, which is a good example.Flexographic Printing and Its Cost
The water-soluble ink for flexographic printing does not contain organic solvents, heavy metals and other substances harmful to people, so it is called “green printing”. Water based ink is very important for the printing of food, medicine and other product packaging. Flexographic Printing and Its Cost
There are laws and regulations in Europe and the United States that the packaging and printing materials shall not contain harmful substances and shall not harm people. In recent years, I have often heard of the return of goods due to the non environmental protection of domestic packaging.Flexographic Printing and Its Cost
In late July this year, the Shanghai Television News reported that the Shanghai food quality supervision and Administration Office tested two Shanghai food processing packaging bags, announcing that the content of toluene per m2 should not exceed 3 mg, the use of packaging bags exceeding the standard is prohibited, and the printing factories exceeding the standard should stop production. The water-based ink for flexographic printing is a good way to solve this kind of problem, and its economic and social benefits are also self-evident.Flexographic Printing and Its Cost
Compared with offset plate making, the production cost of flexographic plate is considered to be much more expensive. Plate making cost, flexo is based on ××/ Cm2, offset printing is priced by each sheet according to the size of the printing drum.Flexographic Printing and Its Cost
When the format is large and there are few patterns, flexo can install the printing plate by means of local collage, which not only reduces the burden of plate material price and narrows the gap with offset printing, but also has one of the characteristics of relief printing. Lithography and gravure printing cannot be operated in this way, especially when printing large corrugated board.Flexographic Printing and Its Cost
The printing resistance of flexographic printing plate is about 500000-1 million prints, which is between 50000-100000 prints of offset printing and 300-5 million prints of gravure printing. It is more suitable for all kinds of prints in large and small batches.Flexographic Printing and Its Cost
The structure of flexographic press is relatively simple, and the format width can be designed according to the specifications of printed products.Flexographic Printing and Its Cost
The narrowest width of the narrow width machine is only 8 inches or even narrower, which is suitable for label and trademark printing. The widest corrugated board printing slotting machine has reached more than 3.6m, which is inferior to other printing machines. Flexographic Printing and Its Cost
Similarly, the price of a four-color flexographic press is only 30-40% of that of offset press and gravure press, which greatly saves the cost and is really attractive to investors.Flexographic Printing and Its Cost
The printing plate cylinder diameter of flexographic printing is variable. According to the print specification and size, it is matched with each other according to the pitch diameter of the cylinder transmission gear.Flexographic Printing and Its Cost
Therefore, the specification of cylinder diameter (also the circumference of the cylinder) is limited by the number of gear teeth. Flexographic Printing and Its Cost
The change of diameter (circumference) is graded (the grade difference is a variable of one tooth), which will also cause a small amount of waste of web paper. In recent years, with the application of servo technology gearless transmission (the drum is directly driven by the motor)Flexographic Printing and Its Cost
Its level difference is only a pulse variable, so the variable can be regarded as a stepless change in the change of printing paper length, which is conducive to saving printing materials and reducing costs. On the other hand, gearless transmission is more conducive to improving printing quality.Flexographic Printing and Its Cost
In recent years, the inflatable sleeve plate roller is being paid attention to by the flexographic printing industry. The replacement of pre pasted plate and plate sleeve has doubled the flexo plate replacement time, from 2-3 hours to 1 hour or less. Flexographic Printing and Its Cost
The replacement of the sleeve not only reduces the labor intensity, but also reduces the operation preparation time, which is to increase the printing production time, so the economic benefit is quite considerable.Flexographic Printing and Its Cost