We can choose to use a 3NH gloss meter to measure gloss. The 3NH glossiness meter is an independently developed glossiness meter with independent intellectual property rights by Shenzhen San'enshi Company. It is a glossiness measuring instrument designed and manufactured in accordance with the national standard ISO2813 and the Chinese national standard GB/T 9754. It is a glossiness meter with full touch screen operation and large screen display, equipped with quality management software. It has the characteristics of easy use, stable performance, and accurate measurement. Next, let's talk about what gloss is and why we need to measure it.

Gloss is one aspect of visual perception, and considering the psychological impact of a product on consumers, it is equally important as color.

It is defined as a 'surface attribute' that gives an object an approximate glowing or glossy metallic appearance.

The glossiness of an object's surface can be influenced by many factors, such as the smoothness after polishing, the number and type of coatings used, and the quality of the substrate.

Manufacturers constantly innovate and design glossy products such as highly reflective car panels, dazzling magazine covers, and satin black fashionable furniture to maximize consumer attention.

Glossiness is important for products, therefore, it can be obtained by continuously testing each product or different batches of products to obtain glossiness values.

Gloss can also be used to measure surface quality, for example: a decrease in glossiness of a surface coating indicates that the surface may need to be reprocessed; Other factors that can cause a decrease in glossiness include low viscosity of the coating or insufficient surface coating quantity.

It is precisely because of these factors that many manufacturing industries, from automobiles, printing, furniture to food, pharmaceuticals, electronic products, etc., require gloss testing of their products.

How to measure glossiness?

The measurement of gloss is achieved by shining a certain amount of light on the surface of an object, and then quantifying the amount of reflected light. The testing method for the angle and reflection of light is determined by the surface and appearance of the object.

So when measuring gloss, it is necessary to choose the appropriate angle. The NHG268 gloss meter complies with ISO2813 and GB/T9754 (Chinese national standards), and all three angles can fully cover and measure the gloss of all surfaces.

The unit of gloss is (GU), which can be traced back to the reference standards of BAM (Germany), NRC (Canada), and NPL (UK).

Medium gloss (universal angle): 60 °

60 ° is a measurement angle applicable to all surfaces. It is also used as a reference angle for measuring surfaces with low gloss of 85 ° and high gloss of 20 °.

Low gloss: 85 °

To improve the resolution of low gloss surfaces. Gloss can be measured at an angle of 85 °. When the surface glossiness value of an object measured at 60 ° is less than 10GU, it is recommended to use an angle of 85 ° for measurement.

When measuring different gloss textures or slightly uneven surfaces at 85 °, multiple point measurements should be taken to take the average.

High gloss: 20 °

A measurement angle of 20 ° can improve the resolution of high gloss surfaces. When the surface luminosity value of an object measured at 60 ° is higher than 70GU, it is recommended to use a 20 ° angle for measurement.

The 20 ° angle (optical path) is highly sensitive to the phenomenon of surface haze on objects. Because fog shadow is a phenomenon observed on high gloss surfaces.

The San'en Light Ze Du Instrument has the following advantages:

1. 3.5-inch ultra large capacitive touch screen, high-resolution (480 * 320) full view display, fully functional touch operation;

2. Compliant with standards ISO 2813, ASTM D 523, GB/T 9754;

3. The perfect combination of aesthetic surface design and ergonomic structure;

4. Three measurement angles (20 °, 60 °, 85 °) can be measured simultaneously;

5. Three working modes and multiple functional settings can meet the different needs of customers;

6. PC quality management software has powerful functional extensions;

7. Can manually input glossiness data, convenient for customers to operate;

8. High hardware configuration, incorporating multiple innovative technologies;

9. Large capacity storage space, capable of storing 1000 basic records, 5000 statistical records, and 5000 continuous records.

Precautions

This instrument belongs to precision measuring instruments. During measurement, it is necessary to avoid drastic changes in the external environment of the instrument, such as flickering of ambient light and rapid temperature changes.

During measurement, the instrument should be kept stable, the measuring port should be tightly attached to the object being measured, and shaking and displacement should be avoided; This instrument is not waterproof and cannot be used in high humidity environments or water mist.

Keep the instrument clean and prevent liquids, powders, or solid foreign objects such as water and dust from entering the measuring aperture and inside the instrument. Avoid impact or collision with the instrument.

After using the instrument, it should be turned off and the instrument and standard board should be placed in the instrument box for proper storage.

The instrument should be stored in a dry and cool environment.

Users are not allowed to make any unauthorized changes to this instrument. Any unauthorized changes may affect the accuracy of the instrument and even irreversibly damage it.