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3nh
2025-02-19
Aerosol paint has a wide range of uses, mainly for repair, marking and graffiti. As people get to know more about aerosol paint, the requirements for various indicators of aerosol paint, especially the glossiness of the coating, are becoming more personalized and diversified. The glossiness of aerosol paint is one of the main indicators for measuring the appearance quality of the coating. This article introduces the application of gloss meter in the glossiness measurement of aerosol paint.
Aerosol Paint Film
1. Influence of pigment fineness
The finer the pigment, the better the dispersion uniformity of the pigment in the base material, which helps to form a smooth paint film. If the pigment particle size is too large, some pigment particles will protrude from the surface of the paint film during the drying process, affecting the smoothness of the paint film surface, thereby reducing the glossiness of the paint film surface.
2. Influence of pigment content
The pigment content in the paint will have a certain impact on the surface gloss of the paint film formed by spraying. The surface gloss of the paint film formed by spraying will be different depending on the pigment content in the paint. Moreover, the higher the pigment content in the paint, the lower the surface gloss of the paint film.
3. Influence of pigment type
Use different color pigments, according to the basic formula, to prepare spray paints, spray on the same substrate, and compare the paints made of different color pigments. The glossiness of the paint film surface is different. Generally speaking, the paint film surface glossiness of the spray paint made of white and black pigments is higher, while the paint film surface glossiness of the spray paint made of red, green and yellow pigments is relatively low.
4. Effect of solvent type
Different types of solvents evaporate at different speeds, and the glossiness of the paint film surface will also be different. When the solvent evaporates slowly, the paint film surface glossiness is the highest. As the solvent evaporates faster, the paint film surface glossiness decreases.
Gloss meter
Aerosol paint has a wide range of uses, mainly for repair, marking and graffiti. As aerosol paint enters thousands of households, people gradually understand aerosol paint in depth, and the requirements for various indicators of aerosol paint (especially the glossiness of the coating film) are becoming increasingly personalized and diversified. High-gloss aerosol paint is high-gloss, beautiful, and full; the coating film of semi-matte aerosol paint is relatively soft, simple and elegant, and not dazzling; the coating film of matte spray paint is even softer and less dazzling, which can avoid dangerous reflections, and can cover up defects such as scratches and dirt on the substrate, giving people a comfortable and elegant feeling.
The glossiness of a coating refers to the ability of a coating to reflect light, and is one of the main indicators for measuring the appearance quality of a coating. The glossiness of an aerosol paint is closely related to factors such as the type of resin and the groups in the resin, the type, particle size and oil absorption of the pigment, the pigment-to-base ratio, the type and amount of matting powder, the material-to-gas ratio of an aerosol paint, the spraying technique, the coating thickness, and additives. In order to ensure the color quality of an aerosol paint product, its glossiness needs to be tested, and the gloss meter is currently the most commonly used.
The gloss meter measures the gloss of the sample using the principle of light reflection. That is, the sample is illuminated under the conditions of a specified incident angle and a specified light beam to obtain a light source in the direction of the mirror reflection angle. The gloss measurement head consists of an emitter and a receiver. The emitter consists of a light source and a group of lenses, which produces an incident light beam with certain requirements. The receiver consists of a lens and a photosensitive element, which is used to receive the cone light beam reflected from the surface of the sample and convert it into an electrical signal to obtain the final test result. Using a gloss meter to measure the gloss of the aerosol paint film makes the entire measurement process more standardized. The international gloss unit GU is directly used to express the gloss value of the aerosol paint film, which reduces errors. The measured gloss value can more accurately reflect the gloss strength of the aerosol paint film.
At present, there are many brands and models of gloss meters on the market. Here we recommend the 3nhYG268 high-precision gloss meter, which has a real-time temperature compensation function. No matter what temperature environment it is in, it can ensure the stability of the instrument and make the measurement results stable and reliable. The temperature compensation function is achieved by the instrument detecting the current ambient temperature in real time, and adjusting the driving current of the light source in real time according to the detected ambient temperature, so as to ensure that under different ambient temperatures, although the luminous efficiency of the light source is changing, the luminous intensity of the light source is the same, which ensures the measurement process. If the ambient temperature changes, the measurement data is still accurate. In addition, the 3nhYG268 high-precision gloss meter can measure three angles at the same time, with a maximum range of 2000GU. The gloss meter has multiple measurement modes including basic measurement, statistical measurement, and continuous measurement, which can meet a variety of usage situations. At the same time, the gloss value can be manually input, which can be used for gloss meter measurement and gloss data transmission in paint, ink, coating, electroplating, plastic electronics, hardware and other industries.
