With the development of optical holographic technology, a new printing process that can clearly and massively reproduce three-dimensional images on a two-dimensional carrier appeared in the printing industry in the 1980s. This new printing process is holographic printing technology. Holographic Printing (Holographic Printing) was developed based on holographic photography. In 1948, British physicist Denis Gabor invented holography. The so-called holography is a photographic method that can record and reproduce the three-dimensional information of objects. Because there was no ideal light source at that time, the development of holographic technology was basically at a standstill. It was not until the advent of the laser in 1960 that the American E • N • Leith and J • V • Pahieta made the world ’s first hologram made with laser as the light source in 1963, which confirmed Gabor ’s theory before making hologram The research and development of technology has developed rapidly. The rainbow holograms, true color three-dimensional rainbow holograms, and holographic molding techniques that have been developed successively since the late 1960s and mid-1970s to observe and reproduce images under natural light have laid the foundation for holographic printing technology. Holography is different from ordinary photography. In ordinary photography, the light reflected from various points on the scene is recorded on the photosensitive film through a camera lens or a camera lens. Only the intensity of light (that is, the amplitude of light) is recorded on the photosensitive film. Since ordinary photography only records the amplitude of the scattered light of the scene, the result is a two-dimensional image that differs greatly from the real object. Holography uses the method of optical interference to record the amplitude and phase of the scattered light waves of the object to be recorded in the form of interference fringes, that is, to record all the information of the object (such as text, patterns or the shape of the three-dimensional object) in a Carrier. To describe it simply, the hologram obtained by holography is a thin sheet covered with interlaced stripe structures that are indistinguishable to the naked eye and complex in shape. This stripe structure is usually called a grating. When the light beam illuminates the grating on the hologram at a certain angle, the object information will be released from the hologram in the form of a certain light, and the human eye will look at the reproduced light as if you are looking at the scene outside the window through the window. Realistic stereoscopic images or color-variable images can be observed from multiple sides around the hologram, which is fundamentally different from the planar images of ordinary photos. There are many methods for copying holograms, among which the copying method and the molding method are the main copying methods for holographic printing. In particular, embossed holography uses a hologram with an embossed grating as the embossing mold, and embossed the embossed grating on the surface of the film with strong plasticity, thereby realizing the printing technology of mass copying the hologram. The holographic printing process can be represented by the following block diagram: Filming hologram → copying and copying → coated conductive layer electroformed nickel plate → peeling → embossing and copying → vacuum aluminum plating → coating compound → slitting Packaging Bag,Popular Packaging Bag,Rice Packaging Bag,Plastic Packaging Bag MST Packaging Co., Ltd. , https://www.mstpack.com
MST Flexible Packaging is a manufacturer and distributor of flexible packaging bags, coffee packaging bags, food packaging bags, restaurant packaging, pouches, films, custom printed labels and other products.
We offer just in time inventory for stock and custom flexible packaging accounts. The markets we serve include industries such as coffee, tea, specialty and natural foods, agricultural, pharmaceutical, pet food and more.