Application status of the most popular printing te

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Application status of code spraying technology in plastic products

the application of identification technology is gradually going deep into every corner, ranging from heavy machinery to a wire, which can not be separated from product identification. This technology is also widely used in plastic packaging containers, plastic films, plastic pipes, wires and cables, plastic parts and other products

Han's jet star-30 is applicable to spray printing of PVC, paper and other materials

types of printing technology

at present, printing technology mainly includes ink-jet printing technology and laser printing technology

inkjet printing technology

is also a material that integrates waterproof and thermal insulation. Inkjet printing technology is also called non-contact printing. According to different working principles of inkjet printer, it can be divided into continuous inkjet printer and on-demand inkjet printer

the continuous jet printer, referred to as CIJ type for short, continuously ejects ink from a single nozzle through pressure, and breaks after crystal vibration to form ink dots; After charging and high-voltage deflection, the ink dots are scanned into words on the surface of moving objects. Most industrial inkjet systems use CIJ technology, which can reach a speed of 1000 feet per minute, much faster than the on-demand inkjet printer, but the image quality is also lower than the application of the latter technology. CIJ printing equipment manufacturers such as Domino and Videojet are leaders in this field

on demand ink-jet printer is referred to as DOD type for short. The ink supply system nozzle is composed of multiple high-precision valves. When spraying words, the valve corresponding to the type is opened and closed quickly, and the ink is sprayed out by internal constant pressure, forming characters or graphics on the moving surface. A digital signal produces a drop of ink on the paper, not a stream of ink. It can produce an effect close to photographic quality. DOD printing speeds range from 100 to 300 feet per minute. At present, many companies are developing high-speed DOD printing equipment for packaging purposes

laser inkjet technology

compared with ink inkjet technology, laser inkjet technology is a more advanced technology. This technology mainly realizes code printing by burning and etching. Burning, that is, the laser emits enough energy to remove the surface layer of plastic materials, such as the ink on the surface of printing and packaging. Etching is to use appropriate laser energy to partially melt the surface of plastic materials to form a concave groove as long as you trust us. The focused ultra-fine laser light speed is like a tool, which can remove the material on the surface of the object point by point without mechanical extrusion or mechanical stress, so it will not damage the processed objects

in addition to the general information labeling function, the anti-counterfeiting function of laser code printing technology is more significant. The application of laser code printing technology in the Chinese market has just begun, but it will win a broader market because of its high reliability, low operation cost, simple installation and operation, and precise bar code printing

in this field, Shenzhen Han's Laser Technology Co., Ltd. is one of the few leading enterprises in China. At present, the laser marking machines produced by the company mainly include YAG series and CO2 series, which are suitable for marking ABS materials, epoxy resins, PVC, bulletproof adhesives, polyurethane, glass and other materials

application in the plastic industry

compared with common printing methods such as pad printing or silk screen printing, inkjet printer has the advantages of non-contact inkjet printing, high speed and efficiency, low cost, instant inkjet printing, programmable and can change the inkjet printing content at any time. It is more and more favored by plastic product suppliers

packaging materials

nowadays, plastic has become one of the main packaging materials and is widely used in the packaging of food, beverage, tobacco, cosmetics and other products. Most of these plastic materials are PVC, PE and pet, which are the main printing objects of inkjet printer in the packaging field

packaging materials require that the printing effect should be not only clear, but also beautiful. Non contact inkjet printer and laser printer do not need to contact the product surface in the process of inkjet printing, so the inkjet printer can complete the task excellently whether it is a regular or irregular object surface, whether it is a round, square or rugged surface. In addition, plastic film is widely used in product packaging. If it is squeezed, the film will be damaged to a certain extent, which will directly affect the aesthetics of the packaging. The use of non-contact inkjet technology, there is no such worry. For example, the semiconductor pumped laser marking machine (dp-r75) of Han's laser can mark directly through the plastic film of cigarette packaging without damaging the film

as food, beverage, tobacco and other products are closely related to life, packaging materials also have relatively high requirements for hygiene. Because the laser machine does not use ink for marking, it can ensure the cleanness of products and production environment. Therefore, the application of laser marking technology in packaging materials has attracted great attention. Domino recently launched the s200b scribing laser printer mainly for PET materials. At present, the laser inkjet printer companies on the market can provide the identification scheme of pet surface materials. However, due to the transparency of PET materials, when the laser is applied to the surface and cannot change color, the effect is not significant and it is difficult to identify. The s200b scribed laser inkjet printer combines the "blue tube technology" with the laser inkjet printer to make the coding color white, showing a crystal texture, and the effect is obvious and clear

plastic pipe

there are many products in the plastic pipe industry, including drainage pipeline trough, aluminum-plastic pipe, composite pipe and rubber hose

some of the pipes are located in high temperature and high heat environment for a long time, so the identification is required to have strong resistance to sunshine, high temperature and other environments, that is, to ensure the durability of the identification. In addition, the high extrusion rate of plastic pipes also requires that the printing speed can be synchronized, while micro pipes need flexible and sophisticated printing technology

the equipment of VDJ can better meet these special requirements. Its small character ink inkjet is dedicated to helping automobile manufacturers develop and test the latest technologies and materials. The machine series is suitable for operation in high temperature and high heat production environment. The ink jet is clear, stable and wear-resistant, and the minimum character sprayed can reach 0.8mm. At the same time, the inkjet printer has the function of automatic meter counting, which can continuously and immediately print without affecting the continuous operation of the whole production process

wire and cable

code printing technology is also widely used in wire and cable industry. It is difficult to identify the brand or trademark of cable and wire products from the appearance, and genuine products can be quickly identified by printing product specifications and factory name and logo

the requirements for identification of this product are: easy to distinguish, not easy to wear, and good chemical resistance and ultraviolet resistance. There are many inkjet equipment on the market that can meet these conditions. In addition, the angle and time for printing are very free: it can be a 360 degree printing angle, or it can be printed at the bottom, side or top of the product; Whether it is in the extrusion of raw materials or in the winding of various cables, whether it is on a high-speed assembly line or on an independent pallet, it can be sprayed

requirements for ink

inkjet printing equipment has the advantages of high speed, high efficiency and low cost. At present, its application in the market is far more than laser inkjet technology. For inkjet printing equipment, the printing effect is closely related to the performance of ink. Nowadays, consumers demand faster drying speed, better anti-counterfeiting performance and more environmental protection

quick drying

the production speed of the production line continues to improve, which requires the cooperation of quick drying ink. For example, in the processing and production of cigarette packets, the ink is immediately dried after being sprayed on the product surface. At the same time, it is firmly attached to the product surface, and will not be transferred to other positions and dirty the surface of objects. This can ensure that the identification of each sprayed product is clear, complete and easy to distinguish, does not affect the whole production process, and effectively reduces the failure time

anti counterfeiting

the anti-counterfeiting function of products has been paid more and more attention by businesses. As the carrier of product identification, ink also undertakes this important task. A kind of ultraviolet visible anti-counterfeiting ink appeared in the market, which has good anti-counterfeiting property. This kind of ink will not display in normal light, and can only be seen under ultraviolet lamp

there are many researches on small character anti-counterfeiting inks in China, which can be divided into hydraulic cementitious materials and non-hydraulic cementitious materials, but there are few large character anti-counterfeiting inks. When Beijing saiteng Power Technology Co., Ltd. developed the hand-held inkjet printer, it used large character anti-counterfeiting invisible ink, which made the hand-held inkjet printer play its role to the extreme. Large character anti-counterfeiting invisible ink not only has high filtering precision, fast drying speed and strong adhesion, but also has the special anti-counterfeiting function of displaying blue light under ultraviolet radiation

environmental protection

environmental protection is also a topic of great concern to the public. Ink and solvent are highly volatile substances, which will produce more chemical toxic residues and pollute the environment. Especially for food packaging, the environmental protection of ink is more important. Its chemical composition and smell may penetrate into food through film and packaging, endangering human health. To put an end to this problem, the United States even banned the use of inkjet machines on the inner packaging of drugs. At present, dominoes, VDJ and other companies pay great attention to the development of environmentally friendly inks

in addition, in the field of food packaging, some foods also require the ink to be edible so that it can be printed directly on the food surface or on its inner packaging. For those foods that need to be refrigerated, it is required that the characters of the label can remain unchanged after the food is refrigerated at about 0 ℃, so the low temperature resistance of the ink is also very important

at present, the development of China's identification industry is in the ascendant, with a very high growth rate. At the same time, the requirements of the market for identification technology are also changing. The reliability and stability of inkjet printer equipment will be an important trend of future technology development. The speed of domestic plastic product production line is getting higher and higher, and the market of inkjet printer products with fast printing performance is undoubtedly broader

source: Vogel

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