LED Liquid Resin Acrylic Full Body Luminous Character Mold Manufacturing Technology

LED Liquid Resin Acrylic Full Body Luminous Character Mold Manufacturing Technology

LED liquid resin acrylic full-body luminous character mold production technology The luminous character fonts or patterns we undertake are generally one specification at a time. This requires us to make LED liquid resin acrylic full-body, three-dimensional luminous characters with low mold cost, convenient production, and easy to achieve the purpose. If the mold cost is too high or the cycle is too long, it will affect our profits and efficiency.

A new mold making method was finally born after I spent 28,000 taels of silver and studied the various problems in the luminous character making technology I learned. It can double the speed and efficiency of mold making, and the thickness of the characters will be uniform, without uneven luminescence. The surface, edge, and contour colors can be adjusted at will. The original core mold is not required. The mold cost is extremely low, and the outer mold material can be used many times. Friends who are making luminous characters or are thinking of investing in luminous characters, and want to improve their technology and technical exchanges, add the luminous character advertising group: 18480310 or QQ: 84879977, I will answer your related questions one by one LED resin full-body luminous characters and LED acrylic luminous characters: Reprinted from Fenglaiyi's original text Acrylic board is polymethyl methacrylate (PMMA) board, which is polymerized by 'methyl methacrylate monomer Methyl Methacrylate (MMA)'. Or it is extruded from acrylic pellets through an extruder. In the past, acrylic sheets were commonly known as organic glass. Organic glass comes from the English word Organic Glass, which means PMMA sheets made of organic compound MMA, which are as transparent and light-transmitting as glass. However, in recent years, all sheets made of transparent plastics such as PS, PC, etc. or made of inferior recycled MMA are collectively referred to as organic glass (non-optical grade). Back to its acrylic resin, the light refraction coefficient of acrylic resin can reach 1.5 to 1.6. Anyone with a little optical knowledge knows that after the light is refracted through several layers of medium layers with different refractive indices, the spectrum can be restored better. The most vivid metaphor is resin lenses. Why are imported ones so expensive? Imported ones must be coated with at least seven layers of medium refraction layers, and domestic ones can have three or four layers. There is no need to say more about the advantages of acrylic luminous characters.

Disadvantages: 1. The size of acrylic blister characters is limited by the size of acrylic sheets. According to the sheet manufacturing process, acrylic sheets are divided into cast sheets and extruded sheets. Generally speaking: the size of acrylic cast sheets is limited, with a maximum of about 2000mm * 3000mm; acrylic extruded sheets can be supplied in the form of coils, and the length is theoretically unlimited. Acrylic extruded sheets can be used to make seamless light box signs with a longer length; while acrylic cast sheets generally need to be spliced. Currently, the market is mainly supplied with cast sheets. The higher sheet price and the lower effective utilization rate are the main factors for the high market price of acrylic blister light boxes. Therefore, there is no blister for large characters! Acrylic luminous characters with large characters are all flat. 2. Acrylic luminous characters cannot achieve true full-body luminescence, and can only be said to be surface luminous characters. Acrylic luminous characters are generally made of cold-rolled sheet, aluminum sheet, stainless steel sheet, galvanized plate, and the aluminum-plastic edge is welded to Nippon as the bottom. The overall font strength is insufficient and easy to deform. 3 Moreover, the original imported board materials are too expensive, and the domestic board materials are mixed and the overall quality is not high. The overall quality of the board surface of acrylic products on the market, such as: flatness, smoothness, light transmittance, color reproduction, weather resistance, impact resistance, brittleness, discoloration, etc., varies greatly. Under the premise of pursuing profits, the price of acrylic board materials directly affects the quality of acrylic luminous characters. 4 Analysis of the brightness of LED acrylic luminous characters: The general reasons that affect the brightness of acrylic are 1. The number, type, light output, color, wavelength of LEDs, and the position of LEDs in the light box 2. Materials-the light transmittance, light reflection, light absorption, and diffusion factor of the acrylic board used 3. Font size-size, especially the thickness of the light box and the reflection factor of the paint or other attached materials used inside the light box 4. Light absorption-the influence of the LED and electrical devices inside the font on light 5. Maintenance - The intensity of light output will weaken with the increase of service life and the influence of dust accumulated inside the font. The current LED acrylic luminous characters on the market are priced at one thousand yuan per square meter. If you talk about soft and non-glaring light for less than one thousand yuan, I believe only the advertising companies themselves can say it, because the cost of LED acrylic luminous characters is mostly concentrated on acrylic sheets and light sources. The lower the price, the more you have to cut the cost of sheets and light sources. First, the material has decreased, and the transmittance, light reflection, light absorption, and diffusion factor of the acrylic sheet used have also decreased. Second, the light source has decreased, and even the best sheet is useless. In the end, it will be dark, and finally it will be soft and not dazzling! LED is a chip luminous body. Simply put, it is to apply constant pressure to the crystal, so that the molecules inside the crystal drift and stimulate light energy. From this principle, LED is a light source with soft green and environmentally friendly light without flickering. The luminous characters themselves are a kind of eye-catching signs. Bright, high-purity, warm-toned colors are highly eye-catching, and the unit of eye-catching level is the brightness of the light source.

Since the above luminous characters all have disadvantages that cannot be ignored, now a new type of LED unsaturated polyester resin luminous characters has matured and started to be introduced to the market. 1. In terms of molds, it is unlikely to start with equipment worth 100,000 yuan for acrylic luminous characters. The equipment for making resin luminous characters can be solved with one or two thousand yuan. Most of the resin luminous characters now use the hand-laid fiberglass process. The hand-laid edge of the font enhances the strength of the font on the surface, but affects the appearance of the font. Because the grid can be seen on the edge. Generally, there are several problems with the hand-laid edge: 1. The fiberglass mesh is corrugated (serious hand-laid foundation deficiency, a typical example of half-way practice) 2. There are hair or stains (solidified when the hands are dirty or there is no time to clean) 3. The font is uneven (insufficient filling or no defoaming agent added) 4. There are broken palms or faults (there are problems with the connection or the process) 5. The overall light transmittance of the edge and the surface is uneven. We use casting to form, and use a unique hollow seamless fully sealed forming process. It is truly light and high-strength, fatigue-resistant and weather-resistant, with good vibration reduction and vibration absorption capabilities, and can avoid damage caused by resonance surfaces. Because the full seal is waterproof, harmful gas-proof, and insulated, it can better protect the light source, extend the life of the light source by 20%, and truly achieve maintenance-free. Acrylic luminous characters can only be made into fonts with rigid shapes and thick strokes. Some people say that luminous characters must be made thick to look good. I think there are the following reasons: First, they are told to customers. Second, they want to move all the transformers and traditional neon lights into the font. Third, they don’t understand what Chinese calligraphy is. The thickness is determined by the length and width of the font. For luminous characters, in addition to the appearance and brightness, they also need to look at the demeanor! In China, calligraphy is the art of art. Whether it is the seal script that is as hard as iron and as flying as the characters; the official script that is simplified and turns the circle into a square; the regular script that is extremely implicit, rigorous and dignified; or the cursive script that is vigorous and reverberating, and the running script that borrows three parts from the official script and seven parts from the regular script, our molds can make it into a full-body luminous character that is transparent on the front, back and sides! 2. On the panel, we use a new type of composite light-transmitting and refractive resin material with a light refractive index of 93%.

Many websites that sell this type of luminous characters boast that they are light-enhancing light guides made of high-tech polymer compounds. I won't argue with them. What I want to correct is to replace the word "enhance" with "fold", the word "guide" with "transmit", and the light-refraction light-transmitting body. Transparency and transparency are two completely different concepts. Because acrylic is both translucent and transparent (two beauties in one), the choice of light sources for acrylic is wider than that of resin luminous characters, including traditional neon lights, cold cathodes, electrodeless lights, LEDs, and microphones. Resin luminous characters are translucent but not transparent (opaque means meaning, because a refraction layer must be formed), so resin luminous characters can only use LEDs, because LEDs are the king of short-range light sources. Therefore, the key to making resin luminous characters lies in how to master the ratio of translucency and refraction. Translucency is the key. If the light cannot be transmitted, it is useless. Light of a certain wavelength is refracted to form a uniform light within an equidistant range. This is the principle of transforming point light sources into surface light sources. Through the refraction of light, the brightness of the light source can be reasonably utilized. Whether it is the light from the LED chip or the high-voltage breakdown of the neon tube, the light radiation from the light bursting to the panel needs a sufficient distance, that is, this distance can ensure that the light is homogenized when penetrating the panel. Once homogenized, a surface light source is formed. However, the transmission of light in fiberglass is very interesting. It is a process of continuous refraction, that is, the light must be refracted, refracted, and refracted again before it can break through the surface. 3. The effect during the day is that because acrylic resin is a high-gloss shape after molding, it has a kind of effect of flying streams. Unsaturated polyester resin is matte after molding. In other words, no matter how many layers of transparent paint or varnish you spray on the surface of the resin characters, you will never achieve the feeling of acrylic flying streams, because paint and varnish are transparent, and the overall reflection is the grayish color of the resin. Therefore, the resin needs to be modified (the technology involved will not be mentioned). The modified high-gloss panel resin characters will not let the acrylic characters 4 light source, we use the new green and environmentally friendly ultra-bright LED light source packaged by foreign chips, The power consumption of LED full-body luminous characters is only 40W per square meter, which is equivalent to a fluorescent tube, only 1/10 of the traditional neon lamp, and the quality is guaranteed, and we do not compete with customers for the light source! Let me say a few more words. Now many websites selling technology have a super low-priced light source. In fact, you don’t even need to think about it. It’s just a few cents per light source. One square meter is just a few dozen yuan of light source fee, but do you dare to use it? 5. The power supply we use is a high-frequency pulse power supply originally produced by Hitachi. The DC module has a positive factor power, temperature and overload protection. In order to save transformers, many stores now often use 220 volts voltage plus resistors in series to connect LEDs. There is no voltage regulation and constant current. Not only does the resistor waste part of the power, but it also harms the service life of the LED. Secondly, use an iron core transformer to step down and rectify into DC, which has good reliability. The switching power supply currently used in large quantities on the market is highly efficient, but the quality is easily adulterated, and inferior ones are easy to burn LEDs. 6. Our company uses LED power supply strictly according to the "rules" of the electronics industry. In actual application, only 60% of the limit value is used to ensure normal performance and life. Now many advertising manufacturers are rigidly increasing the LED current in order to pursue brightness when making LED luminous characters, which is tantamount to exhausting the pond to catch fish. While pursuing maximum brightness, we take into account life and ensure safe current.