Technical Support

Up-conversion process and mechanism of up-conversion luminescent materials

Its principles include excited state absorption (ESA), energy transfer up conversion (ETU), and photon avalanche (PA). Energy transfer refers to the coupling of two excited ions with similar energy through a non-radiative process, one of which transfers energy to the other and returns to a low energy state, and the other ion receives energy and transitions to a higher energy state. Energy transfer upconversion can occur between the same ions, or between different ions. Therefore, energy transfer up-conversion can [...]

What factors will affect the luminous effect of glow in dark powder printing

Glow in the dark powder printing has become very popular in recent years. Many clothing printing factories have luminous powder printing technology, and luminous clothes are also very popular in the market. Some manufacturers’ technology is not enough, so the printed products have unsatisfactory results. So what are the factors that affect the luminous powder printing effect? Some factors that determine the luminous effect of luminous powder 1.Transparency of ink The luminous effect of the luminous powder of the luminous ink depends on [...]

How to choose professional photoluminescent stone manufacturer

Photoluminescent stone is very common in life, hotels, hotels, parks or families, etc., luminescent stone has all the functions of ordinary stone, at night can also emit colorful light, colorful luminescent stone, can beautify the role of the environment, and bring great convenience for life. In China, there are many manufacturers of luminous powder, so there are many manufacturers of luminous stone. How to choose a reliable supplier of luminous products? First of all, we should test the samples. [...]

Application of thermosensitive color change powder in ink

1 selection of connecting material (resin) : 1.1 influence of viscosity and solid content of binder (resin) on color concentration and surface gloss: The choice of resin in ink oil has a very important effect on the color concentration and surface gloss of temperature-varying ink, which is more significant for black ink. Because the content of pigment in the color changing ink is much higher than ordinary ink, if the resin modulation of ordinary ink color changing ink will lead to [...]

Description of luminous effect of invisible fluorescent ink substrate

Because the red fluorescence medium in invisible ultraviolet fluorescent red ink is an organic complex, which is easily decomposed by the metal complex bonds of the fluorescent medium under high temperature and hot flashes, the luminescence period of this fluorescent ink depends on the climate and environmental conditions. Invisible ultraviolet anti – counterfeiting fluorescent red ink Because the red fluorescence medium in invisible ultraviolet fluorescent red ink is an organic complex, which is easily decomposed by the metal complex bonds of [...]

How to use glow in dark powder to achieve good results

Glow in the dark powder is a kind of luminous material. But sometimes the user can reflect to use the effect is not good, actually want to make the effect of noctilucent powder better play. Should depend on its actual situation and decide, different requirement, luminance and different use have different use method. Here is a brief introduction. 1 glow in dark powder as a kind of light storage luminous material, so luminous powder again good also have to absorb light. Electric [...]

Ultraviolet fluorescent anti – counterfeiting ink use instructions

Ultraviolet fluorescence anti – counterfeiting ink into long, short – wave fluorescence. Long – wave fluorescent ink invisible colorless or colored two. The former is usually white or colorless, printed on paper or plastic film does not show color, under ultraviolet light or detector different varieties will show different colors, red, yellow, green, blue and other different types. I. performance introduction Ultraviolet fluorescence anti – counterfeiting ink into long, short – wave fluorescence. Long – wave fluorescent ink invisible colorless or colored [...]

The difference between electroluminescence and photoluminescence

1. Electroluminescence is different from photoluminescence in that electroluminescence refers to electroluminescence and photoluminescence refers to the luminescence of photoluminescence materials. The principles of electroluminescence and photoluminescence are different. 2. Electroluminescence, also known as electric field luminescence, or EL for short, is a physical phenomenon in which the electrons excited by the electric field hit the light center by the electric field generated by the voltage applied to the two electrodes, resulting in the transition, change and compound of electrons [...]

About Invisible security printing

  It is a new type of optical imaging technology which integrates micro and nano graphic design, optical interference, stereoscopic imaging and other modern high precision manufacturing technologies into a comprehensive anti-counterfeiting printing technology Confidentiality is strong Invisible anti-counterfeiting “integrated into the printed matter, the appearance is not visible or a flat color block, security anti-counterfeiting information is not visible, need a special corresponding lens, ultraviolet light or xenon lamp to check and verify; And security information can be designed in multiple [...]

Specific operation method to improve the smoothness of powder coating

Powder coatings are one of the most environmentally friendly coatings systems due to their complete absence of organic solvents and low VOC emissions during curing. The so-called coating leveling, that is, coating coating after the construction of the formation of smooth state, leveling surface should not exist orange peel, brush marks, ripples, shrinkage cavity and other irregular form. Generally we use the naked eye direct observation method is to sample and standard samples for parallel comparison to judge the advantages [...]