Laser engraving has advantages.

1. Comparison between laser engraving and manual engraving

Laser engraving plate making completely imitates and optimizes the design of manual plate making. After the laser engraving plate was put into the market, within ten years, the engraving had a slope of 0.3MM, and the light attenuation at the corner of the engraving was automatically compensated by software upgrade. Improve the speed of automatic engraving. Basically, hand-carved plate making will be eliminated. In addition, laser engraving plate-making completely eliminates the engraving errors and the inevitable engraving errors in manual engraving. The manuscript is good, because of a mistake in hand lettering, the whole layout is scrapped. If not found in time, often the whole batch of cartons will be scrapped. Laser engraving is the use of software, the original input automatic engraving, there is no engraving error. It turns out that more than 20,000 manual engraving and plate-making practitioners in the Pearl River Delta have basically disappeared, and they have all changed careers.

Second, the comparison between laser engraving plate making and resin plate making.

Low one-time investment in laser engraving and plate making. A 2-meter photosensitive flexible dryer is not less than 400,000 yuan, and a laser engraving machine is about 40,000 yuan.

Resin plate has a high production cost. The average price of resin plate in Pearl River Delta region is 1.25 yuan /in2, and the average price of laser engraving plate is 0.32 yuan /in2. Although mass production in resin plate can reduce the production cost to 0.90 yuan /in2, it is not possible for any enterprise. Even if it can be done, the cost is much higher than that of laser plate making.

Laser engraving plate-making has low energy consumption and no pollution, and resin plate processing has high pollution. Although it is better to have a plate-making liquid recovery device than not, the recovery rate of plate-making liquid cannot be 100%, and pollution is inevitable.

The size of laser engraving can be infinite, and the production site only needs more than 10 square meters, while the working site of resin printing machine can not be less than 40 square meters. The smell is pungent during production, and the production site must be isolated independently. In addition, the machining size is limited by the model. The 2-meter photosensitive flexographic printing machine can only produce resin plates within 2 meters. 5. Laser engraving plate-making adopts a slope of 0.3MM, and its durability is basically close to that of resin plate. Only the resin plate printing below No.7 is obviously better than the laser engraving plate.

Third, the practical application of laser engraving plate and photosensitive resin plate in corrugated box packaging industry

At present, in the economically developed areas of the Pearl River Delta and the Yangtze River Delta, photosensitive resin plates and laser engraving plates are more popular. Because of its high flexibility and clear marks, resin plate occupies 30% of the market in the carton industry, while laser engraving plate-making has completely accepted 70% of the original hand-carved plate-making market. 90% of corrugated boxes belong to transport packaging, and the printing marking requirements are generally around 40 lines, while the carton printing machinery can only reach below 80 lines at most, and color offset printing is generally used above 80 lines. Laser engraving can be used for electrical packaging between transportation packaging and sales packaging. Because of the habitual reasons of some factory operators, most of them are printed with resin now.

4. Competition and prediction between laser engraving plate and photosensitive resin plate with low energy consumption, environmental protection and economy

In the application of electrical appliances and food packaging between transportation packaging and sales packaging, the use of laser engraving plate making is more important than economic reasons. In the practice of printing carton packaging marks, high resolution can be obtained by using elastic air cushion or sponge pad when printing, and the printing effect can be improved by 10-20 lines. At present, many carton packaging enterprises have tried this method and achieved good results. On this basis, it is more prudent to use resin plates for some smaller text patterns and laser engraving for text patterns above the seventh character. Example: Zhuhai Doumen Chiba Paper Co., Ltd. adopted this method when manufacturing Gree air-conditioning export packaging cartons, except that the characters and patterns below No.7 are made of resin, the rest are laser carved. So as to reduce that plate-making cost unde the condition of ensuring the quality. If all photosensitive resin plates are used, a set of plates is not less than two or three thousand yuan, and laser engraving is the main way, supplemented by photosensitive resin plates, and a set of plates is only 500 yuan. Enterprises should do everything possible to reduce production costs and pay attention to the environment is more valuable.

5. Diversified competition of plate-making technology

Competition not only provides more choices for carton packaging industry, but also greatly reduces costs and improves economic benefits for carton packaging industry. Before laser engraving appeared, the average price of photosensitive resin was 5 yuan /in2. At that time, almost every industrial zone in the Pearl River Delta had photosensitive resin plate production and processing points, and there was a trend of spread. After the laser engraving plate was put on the market, the price of photosensitive resin plate dropped sharply, and the production scale was reduced to 1.25 yuan /in2 today. The benefits brought by plate-making competition to carton packaging industry are obvious. To sum up, the competition of corrugated box packaging enterprises in printing plate technology will continue in the future, and the competition between laser engraving and photosensitive resin plate will continue and be more exciting. According to the forecast of experts in corrugated paper packaging and carton industry. In the future, photosensitive resin will completely withdraw from the printing plate of transport packaging cartons. Between the transportation and sales packaging of printed products, photosensitive resin version still has a weak advantage. About 60% of them use photosensitive resin plate, and 40% use laser engraving plate. The situation that the original photosensitive resin version unified the rivers and lakes has undoubtedly become history.

At present, the printing plates in the carton packaging industry generally occupy 75% of the market, and there is a trend of continuous extension. Although photosensitive resin has high stability and high-definition printing effect, the cost problem is the bottleneck restricting its development. Even if the cost can be reduced, environmental protection is the most critical issue that restricts its development. Therefore, economical and environmentally friendly laser engraving plate making is the development direction of printing plate materials in carton packaging industry in the future.