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Shenzhen Yuanming Technology Co., Ltd. Specializes in the production and operation of high-power UV LEDs, Ultra violet curing light source products. The production of high-power UV LED ultra violet encapsulated products have hundreds of category. The power of products range from 0.5W to 10000W. The UV LED ultraviolet encapsulated products manufactured by Shenzhen Yuanming Science and Technology Co., Ltd. have various applications, including printing presses, 3D printing, transfer Printers, ...
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How to measure UV curing lamps
How to measure UV curing lamps The use of UV LEDs as an alternative to mercury or fluorescent lamps is gaining rapid momentum for curing applications in the middle UVA range.uv curing cob This technology is environmentally friendly, with no mercury, and also offers significant advantages in terms of cost, system miniaturization and increased efficiency.uv curing cob However, proper measurement and characterization of UV curing is crucial to the successful adoption of this new technology. This article addresses the issues involved in measuring UV curing, specifically in the middle UVA range, and discusses the challenges posed by the different measurement techniques available.uv curing cob It highlights some of the advantages of UV LEDs, and explains how to achieve optimal performance using these devices.uv curing cob In this paper, the authors have investigated the effect of various carbonaceous fillers (MWCNTs and biochar) on the physico-mechanical properties of UV-LED curable acrylate networks.uv curing cob The effect of the fillers on the flexural strength and hardness of the cured polymer was assessed by means of mechanical tests, and the optical properties were evaluated through UV-Vis spectroscopy and transmittance measurements over a wide wavelength range. The results showed that the addition of carbonaceous fillers significantly increases the flexural strength of the UV-LED cured networks, but has little impact on their hardness.uv curing cob The mechanical sensitivity of the networks to shear was not affected by the presence of the carbonaceous fillers, and they maintained high transparency over a wide wavelength range, even at 1.0 wt% of biochar, despite the fact that the polymer chains are frozen in a non-equilibrium thermodynamic state after the UV-LED irradiation. Besides the physico-mechanical and optical characteristics, the researchers also studied the influence of the carbonaceous fillers on the UV-LED curing kinetics, by examining the FTIR-ATR spectra of the samples before and after exposure to UV-LED radiation.uv curing cob The authors observed that, in the case of systems containing MWCNTs and biochar at various loadings, the disappearance of the band at 1630 cm-1 (attributed to the acrylic double bonds) was a good indicator of the completeness of the conversion to oligomers, as confirmed by the fast curing rate measured under UV-LED radiation. The oligomers formed by the MWCNTs and biochar were found to have high barrier properties against oxygen diffusion, as indicated by the low oxygen permeability values obtained for the cured networks. This indicates that the UV-LED irradiation promotes the formation of oligomers with well-defined molecular architectures, which enhances the elasticity and resilience of the networks. This, in turn, increases their mechanical permeability and resistance to stress, making them an interesting material for application as an adhesive in industrial applications. The synthesis of these compounds can be easily carried out using microwave-assisted chemical vapor deposition, and the authors suggest that their application could have broad applications in the field of electronics and plastics.
The Advantages of Using a UV Curing Lamp
The Advantages of Using a UV Curing Lamp UV curing is a special process that uses light to trigger chemical or physical reactions, resulting in a harder, tougher or more stable substance.uv curing lamp smd It is used in a wide variety of printing and other processes that require a fast, reliable and repeatable cure. UV curing can be accomplished with a variety of lights including mercury-based arc lamps that generate broad spectrum UV radiation and LEDs that emit only narrow band UVA energy. The advantages of UV curing include instantaneous turn-on/turn-off, no heat, lower energy consumption and no ozone generation. This allows for a smaller footprint, faster curing and a higher uptime than conventional heat-set drying. The UV radiation from the lamp reaches the material and triggers a chemical reaction, which causes the coating to harden or bond to the substrate.uv curing lamp smd This process is much faster than traditional heat-set drying, which can take minutes to hours depending on the thickness of the material and the temperature of the ambient environment. The UV light is also less likely to distort the material because it operates at lower temperatures than a heat-set dryer. Many industrial applications use UV-curable liquid and powder coatings, especially in the printing industry where it has revolutionized production.uv curing lamp smd These coatings are photopolymerized materials with chemical photoinitiators that instantly respond to UV-light energy, starting a reaction that leads to cure. UV-curable liquids and powders are also solvent-free, allowing them to eliminate the need for a separate melt stage before the cure stage. While the UV-curable coatings are often used for labeling and packaging, they can also be applied to a wide variety of other products and materials.uv curing lamp smd These include automotive components, medical devices, pharmaceuticals and electronics. The advantages of these coatings include a faster cure time, greater durability and chemical resistance, easier application and lower cost than solvent-based alternatives. As the market for UV-curable coatings continues to grow, manufacturers are evaluating new ways to improve the efficiency and performance of their systems.uv curing lamp smd A key consideration is how to minimize the amount of heat generated during curing. One solution is to replace traditional arc-based lamps with LEDs, which operate at a fraction of the power and produce significantly less heat. The low operating temperature of LEDs makes them suitable for applications that expose heat-sensitive materials such as paper, film and wood. UV-LED curing reduces costs by eliminating the need for cooling air blowers that produce ozone and other pollutants. It also removes the need to exhaust mercury vapor from press rooms, making it a safer process for operators. It is also more energy-efficient than other curing technologies, reducing both power and heat consumption while providing better performance. The output of a UV LED curing system is measured as irradiance or exposure (energy density). Irradiance measures the intensity of the UV-lamp light at a given distance and is typically measured in mW/cm2. Exposure is the total amount of UV energy that is delivered to the product over a specified period of time and is commonly expressed in mJ/cm2. Both irradiance and exposure are highly dependent on lamp power, line speed and distance between the product and the light source. Tags: lamp uv ink curing
Talking about UV LED Wavelength and application
Wavelength classification and application fields of ultraviolet light According to the different biological effects, ultraviolet rays are divided into four wavelength bands according to wavelength: long-wave UVA, medium-wave UVB, short-wave UVC, and vacuum UVD. The longer the wavelength, the greater the penetration.   UVA Long wave UVA, with a wavelength ranging from 320 to 400 nanometers, is also known as long wave black spot effect ultraviolet radiation. Has strong penetrating power, able to penetrate glass, even up to 9 feet of water; And it exists throughout the year, regardless of whether it is cloudy or sunny, day or night.   Harm to human body: More than 95% of the ultraviolet rays that daily skin comes into contact with are UVA, so it causes the greatest damage to the skin. UVA can attack the dermis through the epidermis, causing severe damage to collagen and elastin in the skin; Moreover, dermal cells have poor self-protection ability, and a small amount of UVA can cause great harm. Over time, the skin develops problems such as looseness, wrinkles, and the appearance of microvessels.   At the same time, it can also activate tyrosinase, leading to immediate melanin deposition and the formation of new melanin, making the skin black and lacking luster. UVA can cause long-term, chronic, and long-lasting damage, leading to premature aging of the skin, hence it is also known as aging radiation.   Application field: UVA ultraviolet radiation with a wavelength of 360nm conforms to the phototactic response curve of insects and can be used to make insect traps. UVA ultraviolet rays with wavelengths of 300-420nm can pass through specially colored glass tubes that completely cut off visible light, emitting only near-ultraviolet light centered at 365nm. They can be used for ore identification, stage decoration, currency verification, and other places.  

2023

12/04

UV LED curing features and advantages
Company Profile: Shenzhen Yuanming Technology Co., Ltd. Specializes in the production and operation of high-power UV LEDs, Ultra violet curing light source products. The production of high-power UV LED ultra violet encapsulated products have hundreds of category. The power of products range from 0.5W to 10000W. The UV LED ultraviolet encapsulated products manufactured by Shenzhen Yuanming Science and Technology Co., Ltd. have various applications, including printing presses, 3D printing, transfer Printers, Screen Printers, Offset Printers, Coating Machines, Exposure Machines, UV LED Linght Sources, Spray Painting, Coating, Leather curing, Glass, Metal, Furniture, PCB Ink light-curing, as well as in agrciultural planting, fishery, crime investigation, medical, biological, cosmetic and water treatment. Food and other kinds of disinfection and sterilization. Since it’s establishment, relying on strong technical resources, specialized management and perfect supply and marketing channels, adhering to the business philosophy of "pursuing mutual development with customers" and the service tenet of "quality wins customers, honesty wins markets", the company has provided high-quality and efficient UV LED ultraviolet products, application service solution and technical support for customers, thus becoming trusted partners of customers with real value and trust. Shenzhen yuanming co., ltd. sincerely looks forward to your joining in the trading of high-power UV LED ultraviolet light products. Welcome to our company to negotiate business and looking forward to mutual growth and devlopment!   Ultraviolet (UV LED) curing principle: UV light curing system is divided into free radical system and cationic system, and the curing mechanism of different systems is different. Free radicals are mainly generated by light irradiation, which initiates polymerization and crosslinking reaction of monomers and prepolymers to achieve the effect of curing. The cationic system is a process in which the cationic photoinitiator is irradiated to generate a strong protic acid, and addition polymerization occurs to make the resin achieve a curing process.   Characteristics and uses of UV LED products: Widely used in banknote checking , UV detection , manicure , medical treatment , printing , adhesive curing , ink curing , Paint curing , etc . Large area curing , inkjet printing, curing outer coatings of wires and optical fibers , Material Irradiation Catalysis , Biological Experiments and Touch Screen Curing.   Advantages of UV LED Light Source : 1. Uniform , stable , strong illumination , shorten the curing time of products , improve production eficiency . 2. Low thermal radiation , especially suitable for liquid crystal display edge sealing , plastic substrate curing . Thin material printing , medical devices require a small heating area occasionally . 3. Low energy consumption ,10% power consumption of traditional mercury lamp curing machine , can save 90% of the electricity . 4. Reliable , the life of LED can reach more than 20000 hours , reducing the cost of consumption . 5.According to the actual application of customers , the shape and size of the luminous region of the UVLED can be customized according to the needs. 6. Ultraviolet LED light source does not need preheating and does not contain toxic mercury . Secondly , the power dissipation of the UVLED is much lower compared to traditional high - pressure mercury lamps. It takes hundreds even thousands of watts more for mercury lamps to produce the same effects and it needs to be preheated for about ten minutes . The lamp tube of mercury lamps also contains toxic substance "mercury". UV LEDs are safer and more environmental friendly choice over traditional technologies.

2022

02/21

What is UV LED light curing system?
What is UV LED light curing system? What are the characteristics of UV light curing? In recent years, UV LED light curing technology has received close attention from the world, and many industrial production fields are gradually choosing UV LED light sources to replace traditional UV mercury lights. The UV LED light curing technology is environmental friendly that realizes the concept of environmental sustainability through use of light emitting diodes. Compared with the traditional UV mercury lamps, it has more higher efficiency and low energy consumption. Following are a few features of UV LED light curing:   1. The characteristics of the UV LED light source are that it belongs to a single-band ultraviolet light, with high luminous efficiency and low energy consumption. The UV LED light source can convert electrical energy into light energy through the led chip, and can emit a single-band ultraviolet light source. 365/385/395/405nm these bands. Compared with the traditional UV mercury lamp, only a small part of the full-band ultraviolet light emitted can actually exert energy efficiency. At the same time, the mercury lamp will generate a large amount of heat energy when it is in use, resulting in a large amount of energy consumption to a large extent;   2. UV LED light curing belongs to a kind of "cold light source", which does not generate infrared band and emits a lot of thermal energy, thereby causing thermal damage to the surface of the substrate. Like some ink printing fields, chip processing, liquid crystal display packaging and other fields, UV LED light sources are basically used for product processing;   3. The UV LED light curing system adopts a unique control panel, which can be used immediately when the power is turned on. It does not need to be preheated in advance like the traditional mercury lamp curing, and there is no need to worry about the regular replacement of consumables due to the life of the lamp like the mercury lamp. . UV LED light curing can instantly light up the lamp beads, and the power (10-100%) can be adjusted at will, which not only saves energy, but also is easy to operate!   4. The maintenance cost of UV LED light source is low. Usually, the use time of a UV LED curing machine is about 25000h, which is 5-8 times that of traditional UV mercury lamp. Due to the life of the lamp beads, almost no maintenance is required, which effectively reduces the cost of equipment maintenance;   5. The UV LED light curing system is mainly divided into UV LED spotlights, UV LED line light source, UV LED surface light source, UV LED curing lamps, UV LED water cooled machine, etc. according to its use environment, and the luminous size and irradiation can be customized according to the actual working conditions Area, the irradiation position is matched with the equipment, no large-scale machinery and pipeline installation are required, it can be adapted to work in a variety of environments, and the work efficiency of the assembly line is improved.   6. As a manufacturer of UV LED curing machines, Yuanming Technology provides a complete set of curing solutions for UV curing problems in various industries. We can provide a variety of conventional models to choose from, and can also customize according to the actual use of customers. Use standard products. If you have any questions about UV LED curing, you can contact Yuanming Technology for consultation and communication. Yuanming Technology will serve you wholeheartedly.   Contact information: Whatsapp: +8613266746340 Bert or +8613554208102 Umi Email: Bert@ymleduv.com or umi@ymleduv.com

2022

03/01