With the development of packaging printing, the close combination of anti-counterfeiting technology and printing technology is of great significance in combating fake and shoddy products and regulating the market order. The printing ink anti-counterfeiting technology has a very good development situation, and its application range has become increasingly widespread, and its benefits have also been getting better and better. Taking an anti-counterfeiting ink with a wide range of applications as an example, it has been combined with many disciplines (such as optics, chemistry, electromagnetics, spectroscopy, etc.) to develop integrated ink anti-counterfeiting technology.
Anti-counterfeiting ink is a kind of special printing ink made by adding special anti-counterfeiting material to the ink's binder material. At present, the most widely used anti-counterfeiting inks are classified into 7 categories: (1) ultraviolet laser fluorescent inks; (2) sunlight-induced color-changing inks; (3) thermal security inks (thermochromic security inks or temperature-change security inks); (4) ) Chemical reaction color change ink; (5) Intelligent machine read security ink; (6) Multi-function or comprehensive security ink (laser holographic plus fluorescent security ink); (7) Other special inks (such as OVI light refraction security ink, etc.). These inks are characterized by the implementation of different external conditions (mainly using light, heat, spectral detection, etc.) to observe the color change of ink samples to achieve anti-counterfeiting purposes.
The research was conducted by representatives from China Mint Co., Ltd., Beijing Deli Technology Co., Ltd., Shanghai Longchen Industry Co., Ltd., Tianjin Jinda Chemicals Trade Development Co., Ltd., and Bidiao Guoan Anti-counterfeiting Technology Co., Ltd. The basic death can meet the needs of the domestic market. Domestic light-variable ink has the characteristics of dynamic color change and is difficult to reproduce. China's 1999 version of 100 yuan used the anti-counterfeiting technology of the factory-variable ink. The anti-counterfeiting mark has never been copied by others in more than three years. At the same time, this light-variable ink is also widely used in various types of securities, trademarks, certificates, notes and product packaging printing anti-counterfeiting. However, at present, imported security printing ink still occupies a considerable proportion. For example, train tickets printed by the Ministry of Railways have caused huge losses to the country due to fake tickets and altered tickets. It is said that it is equivalent to the Beijing-Guangzhou line and the Beijing-Harbin line. The total income of the ticket. Recently, the Ministry of Railways decided to change the number of new tickets, with a total of more than 700 million printed tickets each year and 700 tons of paper, of which the ink is designed to use thermal inks from Mark Sensing, the company's heat. Sensitive technology and ink rank the world's advanced level and are widely used in various anti-counterfeiting labels such as coinage, certificates, and cigarette packets. An important reason for relying on imports is that there is still a certain gap between domestic anti-counterfeit inks in terms of variety and quality compared with foreign advanced levels.
The development trend of anti-counterfeiting inks is: In the aspect of gravure inks, the goal is to increase production efficiency, reduce costs, enhance environmental protection, and improve gravure raised hand; in light variable inks, in order to improve the light change effect and reduce costs Objectives: In the area of ​​thermal inks, the goal is to improve the performance of the heat-sensitive materials and the sensitivity to discoloration; in the area of ​​ultraviolet laser fluorescence, the goal is to develop the system, that is, to develop detection instruments and related technologies when developing inks, in order to improve Machine-readable anti-counterfeiting performance; In the infrared ink, with the development of a unique infrared transparent, infrared absorption material as the goal. These are also the focus of security ink innovations.
The hand is the second face of a woman, from the hand can judge a woman's identity, cultivation and life quality. If you don't care carefully, others will see the signs of time from your hands. And the foot is a microcosm of the human body, and more and more people have been working with facial care.
We only have very few sebaceous glands on the backs of our hands, so it's easy to dry out, and it's a smart woman's idea to keep hand cream handy. Apply it every time you wash your hands to replenish moisture and nutrients. You can use all the high-quality hand protection products that are commonly available on the market. This does not mean that you can use them freely. If the back of the hand is tight and there are small fine lines, it is necessary to choose mild products, such as those containing glycerin, mineral oil, lanolin and other moisturizing ingredients. If you find yourself with itchy, peeling skin, look for products that contain soothing ingredients like mint and chamomile and moisturizing ingredients like minerals and glycerin. The best time to care is also in the evening, before going to bed with almond cream hand cream, then wear a pair of thin plastic gloves, better for the skin to absorb nutrients.
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