What is Offset Printing?

Offset printing is a type of lithographic printing. It is very simple to say that offset printing is a printing method in which the graphics on the printing plate are transferred to the substrate by means of rubber (blanket). It is also the existence of blankets. name. Blanket plays an irreplaceable role in printing. For example, it can make up for the unevenness of the surface of the substrate and make the ink fully transfer. It can reduce the water on the printing plate (the role of water in printing is described later). ) To the substrate and so on. The above is just a general concept. What we usually say about offset printing may be more narrow, that is, a lithographic printing method with three cylinders (printing plate, blanket, embossing). This type of printing is called in the south of China. For offset printing.

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Offset printing is

Offset printing is an absolute dominance in China

Water and oil incompatible

There are many types of paper used in offset printing, and the properties of various papers are also different. Even for the same type of paper, the quality varies depending on the manufacturing process of each factory. The paper commonly used for offset printing is briefly described below.

Printing suitability refers to: paper, ink, printing process (embossing and

During the offset printing process, printed products and

Improving the printing endurance of the printing plate is to reduce the consumption of raw materials, reduce product production costs, and shorten

Offset printing uses a fully automatic assembly line operation, computer automatic control, printing tower cylinder rolling printing, and a conveyor belt automatically transfers optical discs. In order to avoid mixing different types of discs, add BASLER R2 automatic detection at the input end. Offset printing mainly uses different proportions of white background and four main basic colors (black, blue, red, yellow) to allocate a variety of printing colors. The depth of each color is determined by the length of the printing time, the printing pressure, and the printing temperature. The longer the printing time, the darker the color; the higher the printing pressure, the darker the color; and the higher the printing temperature, the darker the color.

1. Offset printing has the characteristics of high efficiency, high quality and low cost compared with screen printing.

2. High efficiency. Offset printing uses full automatic flow operation, automatic color matching by the machine, and automatic monitoring by the computer. It is fast and can print 15,000 pieces per hour.

3. High quality. Computer fine-tuning, accurate color matching and high position accuracy.

4. Good color effect. Printing varnish, color gloss, smooth surface, clear printing effect, not easy to fade.

5. Low cost. Offset printing uses cylinder printing, with a thin print layer and low oil consumption.

I. Letterpress printing

There are many texts, few photos and drawings, many opportunities for text changes, and a small number of prints-prints between hundreds or thousands should be printed in letterpress. The number of typographic printing should not exceed 30,000, and the electronic version of fine pictures should not exceed 70,000 or 80,000. The printed picture must use pink paper to get the perfect dots. So you can't use cheap paper to print pictures and hope to get exquisite results. When using letterpress typeset forms, the junctions of lines are easily separated and disconnected, which is a common disadvantage. In addition, when the printing pressure is too high or the surface of the pressure cylinder is too soft during printing, there will be relief-like protrusions on the back of the finished product sheet, which will greatly reduce the quality of the printed matter.

Second, gravure printing

Gravure printing is suitable for printing high-quality and expensive publications. Whether it is four-color or black-and-white pictures, gravure printing can be highly similar to photographs. Due to the high cost of platemaking and the large print volume, it is the least used of the five types of printing in Hong Kong.

Screen printing

Because the screen printing ink is particularly thick, it is most suitable to use as a special effect print. The quantity is small and the ink color needs to be thick. It can also be printed in three dimensions, such as square boxes, boxes, round bottles, cans, etc. In addition to paper, the bottom can also be printed on cloth, handlebars, plywood, plastic sheets, metal sheets, glass, etc. It is commonly used to print pennants, T-shirts, Watton boxes, soda bottles, circuit boards, etc. The above-mentioned various printing characteristics are impossible by other printing methods.

Fourth, offset printing

Offset printing is only suitable for printing plastic bags, hand drawn, and large and small plastic packaging. The input sheet of the printing machine is not a single sheet but a roll, and it should be cut sheet by sheet after printing. The fineness of printed dots and lines is far inferior to letterpress and offset printing. It can be seen that offset printing cannot be used to print books and periodicals.

Five, network printing

With the rapid development of the Internet industry and the market's familiarity and recognition of e-commerce, online printing is increasingly recognized by the market. Taobao alone's annual printing business volume is as high as 2.8 billion yuan, and the total output value of bulk e-commerce printing exceeds 40 billion yuan. Among them, business short-run printing. With the development of computer technology and the popularity of online e-commerce, online printing is increasing at a rate of more than 200% per year. It is expected that the national online printing proportion will reach 8% by the end of 2012. European and American e-commerce printing started early, accounting for 78% of the entire printing industry, and began to develop in a personalized, digital, and three-dimensional direction.

In 2011, the global printing industry output value reached 720 billion US dollars, of which North America accounted for 28%, Europe accounted for 31%, Asia accounted for 30%, and other regions accounted for 11%. Among them, the printing industry in Asia has developed rapidly, especially China has maintained a double-digit growth rate in recent years. According to the statistics of the National Bureau of Statistics as of the end of March 2012, there were 106,800 printing enterprises in the country, employing 387,560 people, and the total industrial output value exceeded 1 trillion.

Network printing solutions

(I) Commercial Integrated Printing Network Platform

Comprehensive comprehensive printing solution and DIY personalized ordering system; printing network operation, efficient business management and production management. Applicable to: Large commercial printing enterprises, which can be used as an enterprise comprehensive portal or create separate brands for separate operations.

(2) "Network Printing Platform"

Provide enterprise-specific online printing websites, including printing network ordering systems, multiple printing quotation systems, and integrated production process management. Printing enterprises, fast printing enterprises, commercial short-run printing enterprises, suitable for small and medium enterprises implementing network printing applications. Such as domestic well-known iein Yin Kung Fu online printing platform.

(3) "Personal Customization Platform".

Provide online and offline personalized product production tools, allowing customers to see what you get is a fully personalized experience; the product variety is rich, and the personalized products provided include various gift books, personalized albums, mugs, T-shirts, pillows, Mouse pads and various sculptural accessories; at the same time provide a variety of e-commerce styles and interfaces, close to customers' favorite operations and processes, attract more customers to use and order products. Applicable industries: printing industry, imaging industry, fast printing industry, and enterprises with personalized product customization requirements. ^[2]