Working principle Luminous powder, also known as luminous powder, is a kind of efficient light storage material. It can quickly absorb and store light energy, which is then released to glow in the dark. So, the glowing powder you see all the time can glow on its own without electricity. Fluorescent powder is also a very common material, but it is different from luminous powder, especially in how it works. It can glow in the dark like a glowing powder. But the point is, if there's no other light source, it can't shine on its own. Things made from fluorescent powder don't glow during the day. It can only reflect light when someone else emits it at night. So it looks like it's glowing. Application Luminous powder has a wide range of applications. Therefore, it has many social and economic benefits. People can use luminous powder in the printing industry, such as screen applique and printing paste. In the ceramic and glass industries, luminous powder can be used to make road signs, warning signs and crafts. In the plastic and leather industries, we often see luminous powder in toys, handles and other applications. However, fluorescent powder are hardly used in life or work because of the large number of chemicals it contains. For this reason, people usually choose luminescent powders over fluorescent powder Practicality Luminous powders only need to absorb light for a short period of time to glow for a long time. If the luminous powder is made of zinc sulphide, it takes only half a minute to fully absorb. But if it is a powder with a long lasting glow, it will take longer, such as 15 minutes. In addition, the cost of luminous powder is relatively low and can be very colorful according to the need. Luminous powder comes in different colors, such as yellow, blue, red and orange. The most common is white people. However, fluorescent powder are relatively monotonous and do not emit light on their own. Therefore, it is not as practical as luminous powder. As an experienced luminous powder factory, we provide a full range of services for every customer. In addition, we have professional technical guidance to help customers complete their products. So if you have any questions, pls let us know.

Traffic paint is used for road markings on roads, but also for garage entrances, car parking lots and industrial buildings. It is designed to adhere to asphalt, concrete and cement and to withstand demanding weather conditions and wear and tear. Our acrylic resins used to produce road marking paints or traffic paints offer high abrasion and weather resistance, durability, hardness, and elasticity. They also stand out for their fast solvent release, which results in short drying times. Advantages of acrylic resins They offer high adherence on asphalt, concrete or cement. Another major advantage of acrylic resins for road marking paints is that they withstand the elements very well, including extreme temperatures and the action of sunlight, as well as the frequent passage of vehicles and the spillage of gasoline or other similar products. They are also resistant to scratches and bumps, which is why they are indispensable in car parking lots, garage entrances and areas of heavy traffic. In short, they have a great durability, and dry very quickly regardless of the outside temperature - it can be somewhat slower in cold weather. This means that traffic can be resumed within a few hours after the surface has been painted. So if you are interesting this resin, pls contact us now.

Sunman offers a wide range of non-reactive polyamide resins for packaging gravure inks, flexographic inks and cold seal release lacquers. The products can be divided into the following groups: Alcohol soluble polyamide These polyamides are designed to be soluble in ethanol or a blend of alcohols, and have very good ester tolerance.  It is generally more compatible with nitrocellulose than the co-solvent or alcohol reducible types, and offer better low temperature gel resistance and recovery.  The improved compatibility with nitrocellulose allows the formulation of printing inks with high heat resistance for heat-seal applications. Co-solvent polyamide Co-solvent polyamide resin is also called Toluene soluble, Co-soluble polyamide resin or Benzene soluble polyamide resin. We can supply Toluene soluble Polyamide resin in different types, which main benefits its good stability, outstanding adhesion and water resistance, high gloss and excellent water and frozen crinkle resistance. Untreated polyamide It has excellent adhesion to untreated PE/PP, good pigment dispersion. It could be applied to printing ink which does not use nitrocellulose. M/w, it had outstanding adhesion to treated PE/PP and aluminum foil as well. as printing ink applied both to untreated and treated PE/PP, which has wide range of adaptability.

Most of Inks are composed of 20% to 40% of binders, 5% to 15% of pigments, 40% to 60% of organic solvents and 0% to 5% of additives. The binder is a binder resin, which is a component of the chain of the ink, which bonds the pigment to the material to be printed, acts as an adhesion, and makes the ink glossy. The pigment determines the type of color. The solvent dissolves the resin, adjusts the viscosity, adjusts the drying speed, and improves the wetting action on the printing material. The additive acts to improve viscosity, weather resistance, ageing resistance, and gloss. The following is a brief analysis of the difference between Surface printing ink and Reverse printing ink: Differences in printing processes The internal printing plate making process is identical to the general plate making process, but the image on the plate during surface printing plate making is a reverse image, which is a positive image after printing, while the image and text on the internal printing plate are a positive image, which is a reverse image after printing.  The printing speed of surface printing ink is slow, while the printing speed of inner printing ink is faster than that of surface printing. The printing color sequence is also different. Differences in solvents The main solvents used in surface printing inks are xylene and isopropanol.  Normally, toluene and ethyl acetate are the main solvents for ink printing.  High temperature resistant cooking ink is mainly composed of ethyl ketone and ethyl acetate. The inner printing ink solvent is suitable for high-speed printing, and the volatility of the solvent is relatively fast, with a particularly small residual amount of solvent. Currently, environmentally friendly inks use esters and alcohol solvents to dilute the ink. Difference in binders The binder for surface printing inks is mainly polyamide resin, which has good adhesion and gloss, but is not suitable for high temperature conditions, and has poor fastness when compounded (but currently we also can achieve high temperature resistance). The binder for interior printing inks is mainly chlorinated polypropylene and use NC and vinyl chloride vinyl acetate copolymer resins(VAGH resin). Differences in additives The dehydrated apples and kiwi fruit esters are often added to surface printing inks to improve adhesion, gloss, and viscosity. Various additives such as pigment dispersants, reinforcing agents, defoamers, etc. are also added to the interior printing ink. Difference in wear resistance Due to the good softness and elasticity of polyamide resin, the addition of additives improves its wear resistance and makes it more firm against external objects. The chlorinated polypropylene resin is particularly rigid and has poor wear resistance. Due to the internal printing, the requirements for wear resistance are correspondingly lower.