2024 Author: Beatrice Philips | [email protected]. Last modified: 2024-01-09 13:15
Knowing everything about photoluminescent film is very important for safety in large buildings and for other purposes. It is necessary to figure out why a luminescent light-accumulating film is needed for evacuation plans, what is remarkable about the self-adhesive film glowing in the dark and other types of this material. Among other things, the scope of application of such products deserves a separate discussion.
What it is?
Already by the name, you can understand that this is a type of film that emits a bright light even in complete darkness. Luminescence is provided by a special substance known as photoluminophor, which absorbs the energy of visible light; then it will glow for a long time in the absence of external illumination. The volume of the phosphor in the material used is directly related to the intensity and duration of the glow. Experts note that a special coating also perceives ultraviolet rays and uses them to nourish … The glow of the film (or rather the afterglow) can last from 6 to 30 hours; this indicator is influenced by both the volume of the phosphor and the duration of the previous "recharge".
During the first 10 minutes, the glow is as intense as possible . Then the brightness level gradually decreases. Usually developers provide for some specific intensity of the "threshold". In accordance with it, the material will glow evenly until the "charge" is exhausted.
The protection of the luminous layer is also provided for.
Structurally, these products consist of:
- from a polymer layer (extinguishing aggressive substances and mechanical stress);
- phosphor components;
- main part (PVC);
- glue;
- bottom substrate.
Contrary to popular claims, photoluminescent films do not contain phosphorus. There are no radioactive components in it either. Therefore, this type of designation is completely safe for human and animal health. The transparency of the material will allow you to clearly see all images and symbols. Excellent illumination is guaranteed even in a smoky room.
Pros and cons
In favor of the photoluminescent film is evidenced by:
- excellent mechanical strength;
- absolute level of security;
- unsurpassed environmental properties;
- resistance to many mechanical influences;
- impermeability to water;
- profitability;
- ease of use.
The color does not change even with long-term use . There is no need to specially prepare the surface for the application of the material. And when it is applied, there is no need to wait to dry or do anything else. The used photoluminescent film can be removed without tearing.
The operability is ensured even in the absence of power supply; photoluminescent film does not have any noticeable drawbacks.
Views
Photoluminescent film can be designed for printing … This type is very popular when obtaining evacuation systems. Screen printing is used along with digital ink. There is also a luminescent laminating film. This solution allows for faster light accumulation compared to common PVC products. The afterglow in the dark will last longer and will also increase the operating time.
Modern light-accumulating (also known as light-accumulating) film has been used since the mid-1980s. An exceptionally transparent type of coating is used for lamination. Even small details of the image can be easily seen through it. Direct screen and solvent printing usually means the use of white opaque luminous film.
It should be noted that the intensity of light energy can vary greatly depending on the specific task and the phosphor used.
A widespread solution is the FES 24 . Such films are completely opaque. They are intended for direct printing using specialized inks. Later, the coating is applied to any solid base. FES 24P has completely different properties - it is a completely transparent and comfortable material; it is possible to laminate with such a tool already initially ready-made images and designations.
The default coating thickness is 210 microns. When using a self-adhesive backing, the thickness increases to 410 microns. In terms of efficiency, the films are not inferior to such a proven solution as phosphoric paint. Moreover, in terms of safety, they are much more attractive. PVC-based products contain relatively little phosphor and can last no more than 7 years; in the outdoor environment, modifications intended for lamination are more often used.
Applications
The range of photoluminescent films is quite large. Therefore, it can be applied in a wide variety of areas:
- for evacuation plans in residential and public buildings;
- for evacuation signs on trains, planes, ships, buses and so on;
- when issuing billboards;
- in light decorations;
- in the signal marking;
- in special safety symbols;
- when decorating premises;
- as illumination of interior elements.
The lamination film can also be used on highways. E It is often applied to trucks to improve traffic safety. A special coating is also used for road signs to ensure their visibility. Safety signs with a glow effect can be applied to facades, in various parts of corridors, on information stands, in offices, on the walls of staircases and in production halls.
Safety symbols may be of a warning nature. They are used where blasting operations are in progress, where heavy equipment, toxic substances or high voltages are used. Also, with the help of photoluminescent film, it is convenient to demonstrate the prohibition of a particular action, indicate the direction of the emergency exit. Light-accumulating products are suitable for creating signs and souvenirs. With their help, sometimes cars used by taxi services and other organizations are trimmed.
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