Paper gloss meter is an instrument specially used to measure the surface gloss of paper, coated paper, printing paper, film, etc. The following is a detailed introduction to the selection points and precautions of the paper gloss meter.
select points
Measuring range: different paper, coated paper, printing paper, film and other materials have different surface gloss, so it is necessary to select a gloss meter according to the measuring range. Generally speaking, the measurement range of paper gloss meter is between 0~1000 GU.
Accuracy: Accuracy is one of the key points in the selection of paper gloss meter. Generally speaking, the higher the accuracy, the more expensive the price. For general paper, coated paper, printing paper, film and other materials, the accuracy of ±1 GU can meet the requirements. For high-grade paper, coated paper, printing paper, film and other materials, it is necessary to choose a gloss meter with higher accuracy.
Repeatability: Repeatability refers to the difference between the results of multiple measurements of the same sample under the same conditions. The lower the repeatability, the more accurate the measurement. Therefore, when choosing a paper gloss meter, attention should be paid to choosing a product with good repeatability.
Display mode: The display mode of the paper gloss meter is divided into two types: digital display and analog. The digital display gloss meter has the characteristics of accurate reading and automatic calibration, and is suitable for industries that require high gloss. The analog gloss meter is suitable for industries that do not require high gloss, because its accuracy is relatively low.
Size: The size of a paper gloss meter directly affects its portability and operability. In general, smaller gloss meters are easier to carry and operate.
Precautions
Before measuring, the gloss meter should be warmed up to ensure that it has reached a stable state.
When measuring, it should be operated according to the instructions of the gloss meter, such as keeping the instrument level, measuring under the same light conditions, etc.
During the measurement process, avoid collisions between the gloss meter and other objects, so as not to affect the measurement results.
Before measurement, the sample should be treated, such as removing stains, dust, etc.
