There are corresponding national standards for the production of signs. This is no different from ordinary light system signs. The difference is that the electroluminescent part is changed to a self-luminous material. An enterprise specializing in this product development and market development in Beijing, such as Yingguang Wannian Technology Co., Ltd., whose logo system is composed of more than 180 varieties, covering all parts of the daily fire and safety field; Dalian Luming , The world's leader in the production of luminescent materials, there are more than 100 varieties of related products developed by its pilot companies. In addition, there are more than 50 varieties of military self-luminous signs at the Institute of Aeronautics and Astronautics, and the military signs may not be seen in public publications.
The above-mentioned enterprises have accumulated rich experience in the production, market development and application of self-luminous sign systems. First of all, in the choice of production site, it is required to be clean, bright, dust-free and well-ventilated.
The production equipment generally uses a semi-automatic screen printing machine, which is conducive to the uniformity of printing colors on a large area. Using hand-coated self-luminous materials, it is difficult to ensure the uniformity of the product's luminous brightness, uniformity of light and other parameters. Therefore, the use of manual screen printing self-luminous sign systems is not recommended.
The logo is divided into indoor type and outdoor type. The printing material used in outdoor type should be able to withstand the temperature difference test and direct irradiation of ultraviolet rays; indoor type generally uses solvent ink. Many companies also try to carry out UV transformation, but some parameters of the products are still difficult to guarantee for a long time. The substrate is generally selected from PVC plates containing certain inorganic materials, with a thickness of about 1mm; outdoor products are basically steel and aluminum plates, and these two materials are not flammable. To sum up, the process of marking products is roughly as follows.
Blanking → cleaning and polishing → white bottom printing → safe color printing → white luminescent material → print varnish → detection → perforation, trimming, adhesive, framing → outer packaging
The above process is not difficult for ordinary screen printing companies to understand. Many signage companies have ready-made equipment. An umbrella color can refer to the latest national standards for labeling products, and then go to the ink manufacturer to order or prepare the ink in Baixing.
Screen printing self-luminous material is the key process, and the product must ensure that the luminous brightness, uniformity and luminous time meet the quality requirements of related products. The State Fire Administration has a special testing agency, and products must be sent to the statutory department for inspection before they can be sold on the market. Generally, they are sent to the inspection once a year. As for the guarantee of the relevant parameters of the product, self-testing can also make the product quality reach the uniform standard. Specific operation: You can make a standard light box yourself, built-in ordinary fluorescent tube, put the qualified product and the test product in the same position of the light box for comparison experiment, you can know whether the product meets the requirements on relevant parameters. In addition, there are professional measurements: luminosity food. However, it is expensive, and the average manufacturer does not need to spend a lot of money to purchase it. It should be emphasized here that when printing self-luminous materials, the second color must be embossed after drying in one color. Generally, according to the requirements, it must be embossed continuously 4-8 times. Now products generally use second-generation luminescent materials, the material diameter is not a single, but an interval, so you should pay attention to the selection of wire mesh, at the same time should be to the bottom of the manufacturer's luminescent material parameters.
The purpose of overprint varnish is to prevent smudging, and it also has a certain beautification effect. If the sign is placed in the same place on the walkway for a long time, dust will inevitably fall, and it will be easier to clean after printing with varnish.
The service life of outdoor signs is generally 5-7 years. This should be paid attention to in the selection of inks and substrates. The printing process is basically the same as indoor printing. The inks generally use two-liquid reactive inks and thermosetting inks. Overprint transparent and hard varnish to enhance the durability of the cloth used in the product.
Due to the removal of the electroluminescent part, the self-luminous escape sign system is also much more flexible in its use form. It can set up a luminous tape with a uniform width at the height of the aisle skirting, or it can be used to attach the product to the safe channel On the floor tiles, domestic professional film made in Taiwan is generally used. This kind of film is extremely wear-resistant. It can be glued and overlaid on the surface of the logo, posted on the floor tiles, and sealed with sealant around to prevent water infiltration.
In the case of thick smoke from the fire, the evacuees generally move forward, the electroluminescence time is shorter, the photoluminescence time is relatively long, up to 8-12h, the disadvantage is that the brightness of the light is not as high as the electroluminescent products, Escape does not need such high brightness, as long as it can play a role in guiding the route correctly.
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