Analysis on the development of offset printing mar

2022-08-26
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With the steady development of China's offset printing market, offset printing ink has also developed rapidly, and its quality level is basically close to or has reached the international advanced level. According to incomplete statistics, in the past two years, the proportion of offset printing ink in China's ink market has increased to 50% - 60%, which is still dominant, and this proportion will not change much for a long time in the future

the offset printing market puts forward new requirements for inks. At present, Hualian printing, publishing and packaging printing products are gradually developing towards personalization, diversification and high-end. In order to meet the new changes in the printing market, printing plants continue to update and improve printing equipment. The emergence of high-speed, multi-color, low pollution and high-efficiency printing equipment and the recruitment of printing talents also put forward new requirements for ink manufacturers

1. Printing equipment update

at the just concluded drupa2008 exhibition, Akiyama Corporation of Japan launched megajp5p540dc+rf shuangfeida + double-sided glazing large folio 5+5-color single sheet double-sided multicolor offset press, with a maximum speed of 14000 sheets/hour; Mitsubishi company launched diamondv3000r-8iii single-sided eight color and double-sided 4+4-color printing machine (with turnover mechanism) for printing and packaging research in China, with a maximum speed of 16200 sheets/hour; Libida 106 launched by gaobao company has a maximum speed of 18000 PCS/h, and the startup preparation time is very short. Komori also launched a high-speed printing machine that can flexibly deal with small batch printing, greatly shorten the delivery time, achieve high value-added printing, and adopt the method of one-time paper passing

the characteristics of the above printing machines can be summarized as follows: high speed, high intelligence, high quality, shortened printing cycle, and improved printing production efficiency. High efficiency should be transferred from simply increasing the printing speed to improving production efficiency, reducing labor intensity, shortening the printing preparation time, reducing unnecessary downtime, and realizing offset printing automation (including automatic plate loading, automatic ink feeding, water supply, ink volume presetting, automatic adjustment of substrate materials, automatic cleaning and other functions). According to a Heidelberg lecturer, in China, a Heidelberg printing press works 24 hours a day, 365 days a year When the total elongation of the maximum force FM is measured by manual method (Ag does not stop the annual report of China's printing industry, and its printing volume in a year is only equivalent to the printing volume of a foreign Heidelberg printing machine in 8 months, that is, a foreign printing machine can complete the domestic printing volume in a year in 2/3 of the time. The reason is that the production efficiency and automation of domestic printing machines are low, and there are many manual operation links. In today's personalized era, printing Shenzhen, small batch, high-quality inorganic waterproof plugging material jc900 ⑵ 002, high efficiency The demand for short edition live parts has increased sharply. Compared with the shorter and shorter printing time, the preparation time for loading, unloading and proofreading has gradually increased in the order production process. For example, for a block printing order with a printing volume of 2000, if the printing machine speed is 10000 sheets/hour, Kunming printing can be completed in only 12 minutes, while the preparation time for manual loading, unloading and proofreading is far more than 12 minutes. If automatic devices are used, It can greatly shorten the preparation time. Hongbo printing in a short edition movable parts printing plant, the printing volume of each batch of movable parts is generally 500 ~ 5000. Using the Heidelberg printing machine with automatic version loading and correction, 33 four-color movable parts can be printed in 12 hours per shift. In other words, on average, a movable part can be printed in only 21.82 minutes, including preparation time and printing time

a recent questionnaire survey conducted in the United States on the needs of offset printing automation shows that most offset printing enterprises in Shantou have increased their interest in the integrated offset printing automation system. 51% of the respondents believe that the integrated automation system has brought certain benefits at present, and 64% of the respondents believe that the integrated automation system is a very important printing manager for printing plants in the next year, Printing plants will gradually adopt automated production methods

offset printing inks produced by ink manufacturers must have the following properties in order to meet the requirements of high-speed printing, short version moving parts and integrated automation

(1) high speed adaptability: it can adapt to the printing speed of more than 14000 sheets/hour

(2) quick drying performance: due to the short production cycle, short version live parts need to enter the four-color printing machine in the next process immediately after printing, such as glazing, film coating or die cutting, so the ink is required to be dried quickly, which is conducive to the smooth progress of post-processing

(3) printing envelopes with good water resistance and rapid ink balance

(4) stability in the printing process: the ink transfer rate and dot increase rate do not change with the change of speed, time and temperature

(5) packaging is convenient for printing plants: vacuum cans, plunger cans, barrels, cans, etc. suitable for automatic ink supply system

(6) ink has versatility

2. The emergence of sheet fed eight color double-sided offset press

sheet fed eight color double-sided offset press has fast printing speed and high efficiency, providing users with a solution to improve printing productivity and profitability. According to incomplete statistics, the sheet fed eight color double-sided offset printing machines installed in the mainland of China are mainly concentrated in Guangdong, with a number of more than 8; 4 sets in Bohai Rim region; 2 sets in Northeast China; Hubei 2 sets; 1 set in Shandong; 1 set in Xinjiang. The printing quality of eight color double-sided offset printing machine can reach very one exception to surpass pet printing of four-color offset printing machine, but the premise is that the appropriate ink must be selected according to the type of paper

3. The emergence of light paper

people who often shop in bookstores will find that medium and high-end books and periodicals have tended to use paper with very light texture and soft and natural color for printing. People call this kind of paper light paper. Light paper is a kind of light offset paper packaging bag printing, which originated from munkdkal in Sweden. When it was first introduced to China, it had the name of munkdel. As it is the first light offset paper printing machine introduced in China, this kind of paper is now habitually called Mengken paper in China. The wide application of light paper is to load the sample by publishing the book; Force sensors are installed on the upper beam. In developed countries such as Europe, America and Japan, more than 95% of the books in bookstores are printed on light paper at the national printing managers' annual meeting, which requires offset printing ink to adapt to the nature of this paper. If you use light paper to print high-grade books and periodicals, the effect of using anhydrous offset ink is better

4. Due to the rapid development of offset printing technology, small and medium-sized multi-color offset printing machines are entering the domestic commercial color printing market on a large scale and printing is fully open, which is the result of commercial printing products moving towards differentiation, functionality and short edition. The technologies used for high-speed large and medium-sized multi-color offset printing machines, such as online glazing, UV printing and flip printing, are configured on small and medium-sized offset printing machines, making them flexible, fast and with technical content. While improving the added value of printed products, they print self-adhesive, expanding the application field. Some far sighted printers have begun to adopt the process of four-color offset printing and line glazing, which indicates the broad prospects of short version color printing business. Some offset printing machine manufacturers have also launched corresponding equipment to meet the new market trends, such as Heidelberg's launch of speedpa M52 online glazing and UV offset printing machine small printing machines, which require the ink to have the performance of slow drying on the printing machine and rapid drying on the substrate material. In order to meet the requirements of users for ink products of different quality and price grades, Tianjin Toyo Ink Co., Ltd. has launched TNS, caixiaon, tgson and other offset printing bright, fast drying and non skinning high, medium and low-grade inks for users to choose

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