Glossy paper is a professional printing paper with a smooth surface and high gloss, which is often used for high-quality print production. It has good color reproduction and image clarity, and is suitable for various printing technologies, such as offset printing, digital printing, etc.
Detection performance
The detection of glossy paper needs to pay attention to the following main properties:
Gloss: Glossy paper needs to have a high degree of gloss to ensure the visual effect and quality of printed matter. The detection of gloss can be carried out by measuring the reflectivity and specular reflectivity of the paper surface.
Flatness: Glossy paper needs to have good flatness to ensure the printing effect and quality of printed matter. The detection of flatness can be carried out by measuring the smoothness of the paper surface, the height of hairiness and the convexity of the board.
Paper Strength: Glossy paper needs to have a certain strength to ensure its stability and durability. The detection of strength can be carried out by measuring the tensile strength, tear strength, folding endurance and other indicators of paper.
Color: Glossy paper needs to have a certain color to ensure the color reproduction and quality of printed matter. The detection of color can be carried out by measuring the color difference value and color uniformity of paper and other indicators.
Water absorption: Glossy paper needs to have a certain degree of water absorption to ensure its stability and printing effect during the printing process. The detection of water absorption can be carried out by measuring the water absorption speed and degree of water absorption of paper.
Water resistance: Glossy paper needs to have certain water resistance to ensure the durability and use effect of printed matter. The detection of water resistance can be carried out by measuring the time and water absorption rate of paper soaked in water.
Environmental protection: Glossy paper needs to meet environmental protection standards, contain no harmful substances, and have no pollution to the environment. The detection of environmental protection can be carried out by measuring indicators such as volatile organic compounds, heavy metals, chloride ions and fluorescent whitening agents of paper.
Scope of application: Glossy paper is used in a wide range of applications, and glossy papers for different purposes need to have different performance requirements. The detection of the scope of application can be carried out by measuring indicators such as the applicable environment of the paper, the applicable printing technology and the applicable printing variety.
Machinability: Glossy paper usually needs to be processed such as cutting, folding, and binding, so it needs to have certain machinability. The detection of processability can be carried out by measuring the performance change and loss of paper in different processing processes.
Abrasion resistance: Glossy paper needs to have a certain degree of abrasion resistance to ensure the durability and use effect of printed matter. The detection of wear resistance can be carried out by measuring the wear resistance and friction coefficient of the paper surface.
Lightfastness: Glossy paper needs to have a certain lightfastness to ensure the durability and use effect of printed matter. Lightfastness can be tested by measuring the changes in the color and gloss of the paper surface.
The above performance indicators are the key contents of glossy paper testing, and different use requirements and standards will also affect the testing standards and methods of paper.
