[科å°ç½‘()] No matter what kind of printing method is inseparable from ink, this has become an inherent concept of people, and inkless printing technology will undoubtedly break this concept. If it can be realized, it will become a kind of New printing technology. There has been an introduction to the technology of inkless printing in the industry. Recently, the author discovered the patent on "inkless printing equipment " in the process of consulting patents, so he has a strong interest in it. Through the reading of various materials, the author has a certain understanding of the inkless printing technology, and hereby throws bricks and jade, so that everyone can discuss together.
"No ink printing equipment" patent
On July 27, 2011, the European Patent Office issued the patent "Inkless Printing Equipment" entitled "GB 2477139(A)", invented by WYRES CHRISTOPHER ANTHONY, WALKER MARTIN ROBERT, JARVIS ANTHONY N, CRIDLAND JOHN of Great Britain. In this patent, the inkless printing adopts a dry process, and an image forming material such as toner or ink is not required for printing an image, but a specific printing material, a substrate, which contains a photosensitive coloring material such as diacetylene, is required. When these photosensitive color materials are exposed to a suitable energy source (such as a laser), it is easy to change the color. In order to print the desired image, the laser beam should be selectively directed to different areas of the substrate, thereby causing the substrate to change from colorless to any color.
The core components of an inkless press
The core component of an inkless printer is a substrate marking device that is primarily comprised of a radiation source and a control system that includes three printheads, each of which is a source of radiation for emitting radiation of different wavelengths. The printhead 1 and the printhead 3 may be comprised of an array of infrared (IR) radiation/near infrared (NIR) radiation emitters, or may be comprised of a thermal contact printhead that provides radiation at a first wavelength. Thermal radiation can have a broad spectrum or be limited to a specific frequency range. Suitable thermal radiation emitters include, but are not limited to, infrared (IR) / near infrared (NIR) lasers, infrared (IR) / near infrared (NIR) Light-emitting diodes (LEDs), resistive or inductive heating elements. The printhead 2 is comprised of an array of ultraviolet (UV) emitters that provide radiation at a second wavelength, including, but not limited to, UV lasers, UV light emitting diodes (LEDs), UV lamps (eg, mercury lamps). Or xenon lamp). There are separate transmitters in each printhead that can be individually addressed and can be individually controlled by the microprocessor via a driver amplifier.
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