The application of laser holographic logos in the field of packaging and printing is increasing year by year, and the anti-counterfeiting of cigarettes, wine, medicine, cosmetics and other products is inseparable from laser holographic logos. Laser holographic printing, or laser rainbow holographic printing, is a high-tech printing process using optical technology. It can not only reproduce the main image of the original, but also show the different side shapes of the original with the change of the viewing direction. The laser holographic image uses the principle of white light diffraction grating to make the image effect changeable, colorful, colorful and colorful. , Obvious levels, vivid and realistic, high content of information and technology, high production and replication technology of laser holographic images, requires professional talents, complicated processing technology, expensive equipment, and the image itself has the characteristics of being difficult to imitate, so it was The era has been widely used in the field of anti-counterfeiting. At present, with the introduction of high-tech such as encryption holography, three-dimensional holography and true color holography, as well as the popularization and application of molded holograms made of tamper-evident and hot stamping types of anodized aluminum films, the security of laser holographic materials has been increased . Laser holographic materials are a new type of high-tech materials, which are widely used in packaging and anti-counterfeiting printing. The raw materials used for laser holographic film are mainly PVC, PET, OPP, BOPP, etc., the varieties are laser aluminum coating, laser transparent glazing film, laser bronzing paper, laser transfer paper and other series, the colors are gold, silver, red, blue, Green, black, etc. The laser holographic material combines the laser holographic image anti-counterfeiting technology with good anti-counterfeiting effect with hot stamping, molding and other printing decoration technologies, so that the product can increase the anti-counterfeiting performance while improving the decoration effect. In addition, the laser holography technology is combined with other technologies to produce high-tech products such as laser holography plus fluorescent anti-counterfeiting film, flexible transparent laser holographic anti-counterfeiting film, nuclear secret anti-counterfeiting laser holographic film, etc., which further improves the quality and anti-counterfeiting of the laser holographic film effect. The laser hologram is made according to the principle of laser interference and using spatial frequency coding. The application of laser holographic logos in the field of packaging and printing is increasing year by year, and the anti-counterfeiting of cigarettes, wine, medicine, cosmetics and other products is inseparable from laser holographic logos. At present, a variety of laser holographic materials have been developed and applied to different packaging and anti-counterfeiting printing fields. However, because the laser holographic logo printing not only has printing content, but also involves high-tech fields such as lasers, it is impossible to start some problems in printing, which affects the printing speed and product quality. The following is a brief introduction Knowledge of laser holographic logo printing. Laser holographic logo printing is a kind of anti-counterfeiting printing technology developed using laser holographic imaging technology. A three-dimensional model is irradiated from a different angle with a laser and the reference light split from the laser. The light reflected by the model forms an interference fringe containing the holographic information of the model through a slit. This interference fringe is recorded on a photosensitive film, turned into a nickel plate, and then pressed on an aluminum-plated film to reproduce the holographic pattern of the model under ordinary light. This is the production principle of laser holography. The first laser holographic film logo was used for whiskey. Later this logo became popular all over the world and was widely used in anti-counterfeiting printing on various tickets, credit cards, product packaging, etc. Laser holographic materials are contemporary high-tech products that combine molded holographic technology with optical, chemical, mechanical, and vacuum technologies. Laser holographic molding technology belongs to a kind of holographic grating technology. It uses the principle of laser holography to quickly reproduce the entire process of imaging objects or materials of multi-level printing equipment. The production technology of laser holographic packaging materials is high, the equipment is sophisticated, the process is complex, and the products are easily damaged after processing. Therefore, it has high decorative and ornamental value, and thus makes the packaging have a good anti-counterfeiting effect. Laser holographic materials expand the technology and uses of laser embossed holography, transferring vivid and dazzling three-dimensional holographic images and various colorful holographic grating patterns to various plastic films and paper-based materials. In addition, with the development of science and technology, encrypted holography (using special optical coding technology to encrypt in holographic images), three-dimensional holography (holographic images taken with a special three-dimensional object model as the target) and true color holography (using high-tech technology The application of new laser holographic materials, such as the image technology that reproduces the color of the objective object, has added the decorative effect and anti-counterfeiting performance of the product. [next] At present, there are several types of laser holographic film image materials: the most common laser holographic films are polyester film (PET), polypropylene film (OPP), polyvinyl chloride film (PVC) and water-washed film. Manufacturers can purchase different materials according to application requirements, and the application scope of different materials varies. (1) PET laser holographic film Due to the stable materials, good printability and environmental protection requirements, PET laser holographic film is currently the most widely used and most used material. It can be laminated with cardboard and made into various packaging boxes and Bags, etc., can also provide various types of flexible packaging market, such as food flexible packaging or hose packaging. Transparent PET laser holographic film can be made into molded packaging. At the same time, PET laser holographic film is also often used for printing into self-adhesive labels, or as gold and silver wire, powder, etc. (2) OPP laser holographic film In general, OPP's printability is not as good as PET and PVC materials, which makes it greatly restricted in the application of packaging printing. However, through the improvement of the surface treatment technology of OPP materials, the printing suitability of OPP laser holographic film has made great progress, and customers can easily achieve beautiful printing. The transparent OPP laser holographic film is also a good glazing material, which can bring a completely different feeling to the printed matter. In addition, OPP laser holographic film is also an ideal material for flexible packaging. (3) PVC laser holographic film Although the use of PVC is restricted in European and American countries with strong environmental awareness, it still has quite a lot of applications in printed products due to its very ideal printability. PVC laser holographic film is more often made into various Christmas ornaments, Spring Festival couplets, greeting cards, etc. Enthusiastic Latin American people also use a lot at carnivals. The shiny laser holographic luster can add to the festive atmosphere, so it also Very popular with consumers. Gauss International (4) Laser holographic washing film The laser holographic washing film is made of PET laser holographic film, OPP laser holographic film and PVC laser holographic film. The so-called washed film is to use sodium hydroxide to remove the anodized aluminum on the film surface, so that in addition to the laser holographic gloss, the film surface also presents a unique transparent pattern or specific trademarks, graphics, etc., which can be used directly as wrapping paper or bonded After being made into cartons, bags, book covers, etc., it is not only beautiful, but also has anti-counterfeiting effect, it is mainly suitable for brand packaging. (5) Nuclear secret laser holographic film As a high-tech anti-counterfeiting technology, nuclear track anti-counterfeiting, together with “heavy ion microporous anti-counterfeitingâ€, is called two “nuclear weapons†in the field of anti-counterfeiting. Nuclear track anti-counterfeiting technology is to use a nuclear reactor and other nuclear materials to irradiate the plastic film to form track damage in the plastic film, and then form the nuclear track micro-hole anti-counterfeiting pattern required by the fine trademark logo through imaging technology. Finally, after the post-commodity processing, the nuclear track micro-hole anti-counterfeiting logo or other forms of nuclear track micro-hole anti-counterfeiting technology products are obtained. It has the advantages of high technology content, difficult to imitate, easy to identify, low production cost and good compatibility with other technologies. It can be described as a trend that guides the development of anti-counterfeiting today and in the future. Nuclear track anti-counterfeiting technology products can perform multiple identifications to improve the reliability of common identification. And has the first-line and second-line anti-counterfeiting functions. For example, the excellent performance of the first-line anti-counterfeit identification polymer nanomaterial VCC-nuclear track anti-counterfeiting, as long as a drop of water or a water pen is used, ordinary consumers can directly and easily check the authenticity of the goods. At present, it has been widely used in packaging trademarks of famous tobacco, alcohol, audio-visual, books and periodicals, high-end brand-name products, etc .; it is also widely used in the anti-counterfeiting of passports, cards and tickets. Combining the nuclear track with the laser holography technology, that is, the anti-counterfeiting encrypted image of the nuclear track formed on the laser convergence film, can greatly improve the anti-counterfeiting effect of the laser hologram film. In addition to laser holographic films, there are currently other laser holographic materials. [next] (1) Laser holographic paper Can be divided into membrane stickers and pure paper. The film sticker is made of laser holographic PET or OPP film attached to different types of paper. The laminated cardboard not only has better stiffness, is not easy to tear, and the film surface is waterproof. Laser holographic pure paper directly prints the laser hologram pattern on the paper through advanced embossing technology. Its biggest feature is that it conforms to environmental protection. Whether it is laser holographic film stickers or pure paper, it is suitable for printing with general ink or UV ink. In addition to being an excellent carton, book and magazine cover or poster material, it also has a good effect on gift wrapping paper, chewing gum, soap and other packaging. In addition, the label is another major field of application of laser holographic paper. In order to meet the needs of this market, laser holographic paper has launched laser holographic wet strength paper. Although it is also pure paper, it will not be affected by low temperature or humid climate. Destroyed, and can be made into an automatic washing label, so it is particularly suitable for use on the labels of recycled wine bottles and refrigerated food. (2) Laser holographic bronzing foil Laser holographic bronzing foil is the holographic laser processing of thin foil with hot stamping function to form two-dimensional, three-dimensional, dot matrix, spiral, synthetic hologram and other images. It has high gloss, colorful and variable colors, which overcomes Common bronzing technology has defects such as monotonous form, low quality and lack of anti-counterfeiting effect. The laser holographic bronzing foil includes ordinary bronzing foil and transparent laser holographic bronzing foil. In the laser holographic bronzing foil, different holographic effects can be combined with each other. At the same time, dual channels, partial aluminum plating, color separation effect, micro lettering can also be added , Hidden information and other anti-counterfeiting elements, in the surface finishing of printed products and paper, with effective high-level anti-counterfeiting means to achieve its unique copyright protection. In addition, the laser holographic bronzing foil dyeing layer is a grating, and it is not the pigment that displays the color or image, but the holographic pattern formed by the tiny pits (grating) on ​​the surface of the transfer layer after the laser beam is applied. Anti-counterfeiting effect, the application scope of the gold foil is mainly for the packaging of price tickets, tobacco and alcohol, medicine, fashion, clocks, computer software, etc., and the special surface decoration after label printing. In addition, there are laser holographic scratch gold foil, suitable for The password protection of lottery tickets, telephone cards, etc., also has the effect of anti-counterfeiting and decoration. (3) Laser holographic cold foil It uses printing and laminating technology to transfer the laser holographic foil to the substrate. It breaks the traditional process of traditional hot stamping relying on hot pressing to transfer gold foil, and uses a new technology-cold pressing technology to transfer gold foil, which not only solves the difficult process problems in hot bronzing printing, but also avoids making metal plates The pollution caused to the environment during the process can also save a lot of energy. Cold foil has the advantages of fast printing speed, short production cycle, wide material application, high printing accuracy, good anti-counterfeiting effect, cost savings, full use of original equipment, improved production efficiency, and environmental protection printing requirements. The latest technological achievements in the industry. The laser holographic cold foil can also be transparent and cold foiled to achieve the unity of anti-counterfeiting and brand identity. (4) Laser holographic aluminum foil It is to print a laser holographic image on the common aluminum foil, thereby improving the anti-counterfeiting function and appearance of the packaged product. It has good processing adaptability and other characteristics on packaging, which is very suitable for mechanized production. The main application object of aluminum foil is pharmaceutical packaging. Because of its excellent light-shielding, moisture-proof, gas-barrier and taste-retaining properties, it plays an almost absolute protective role against the light, gas, humidity, and taste of medicines, thereby greatly improving The shelf life of the drug is over. However, the general aluminum foil has no anti-counterfeiting function, and the laser holographic aluminum foil has an additional laser holographic processing process, so that counterfeiters cannot easily obtain or copy the same material, so it can improve the anti-counterfeiting performance of drugs. Box Filter Ningbo Ifilter Purification Equipment CO.,Ltd. , https://www.ifiltor.com
Characteristics of laser holographic printing technology and application of holographic materials
Laser holographic printing, or laser rainbow holographic printing, is a high-tech printing process using optical technology. It can not only reproduce the main image of the original, but also show the different side shapes of the original with the change of the viewing direction. The laser holographic image uses the principle of white light diffraction grating to make the image effect changeable and colorful. Laser holographic materials are a new type of high-tech materials, which are widely used in packaging and anti-counterfeiting printing.