Whiteboard is a commonly used printing paper material, which is usually used to make printed materials such as book inner pages, advertising leaflets, picture albums, and magazines.
Detection performance
It needs to detect the following main properties:
Whiteness: White board paper needs to have high whiteness to ensure bright colors and clear images of printed matter. The detection of whiteness can be carried out by measuring the reflected light brightness and chromaticity coordinates of the paper surface and other indicators.
Printing quality: The printing quality of white board paper includes indicators such as image clarity, color reproduction and printing speed. The detection of printing quality can be carried out by checking the printing effect, line clarity, color reproduction and other indicators of printed matter.
Thickness and uniformity: The thickness and uniformity of white board paper will directly affect the printing effect and quality of printed matter. The detection of thickness and uniformity can be carried out by measuring indicators such as paper thickness, density and basis weight.
Strength: White board paper needs to have a certain strength to ensure the stability and durability of printed matter. The detection of strength can be carried out by measuring the tensile strength, flexural strength, compressive strength and other indicators of paper.
Smoothness: White board paper needs to have a certain degree of smoothness to ensure the printing effect and quality of printed matter. The detection of smoothness can be carried out by measuring the glossiness, smoothness, roughness and other indicators of the paper surface.
Environmental protection: White board 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: The scope of use of white board paper is mainly on high-quality printed matter, such as inside pages of books, advertising leaflets, picture albums, magazines, etc. 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 variety and the applicable processing technology .
Surface coating: White board paper usually requires surface coating to increase its surface hardness, wear resistance and printing quality. The performance test of the surface coating can be carried out by measuring the uniformity, hardness, wear resistance, adhesion and other indicators of the coating.
Slidability: The slidability of white board paper refers to its smoothness on high-speed printing machines and its ability to not easily jam. The detection of slipperiness can be carried out by measuring the slip coefficient, surface smoothness, surface softness and other indicators of the paper.
Machinability: White board paper needs to have a certain degree of machinability to ensure that it can go smoothly during printing and subsequent processing. Machinability can be tested by measuring paper surface hardness, surface roughness, applicable processing technology and other indicators.
Anti-aging property: White board paper needs to have good anti-aging property to ensure that the printed matter is not easy to fade or turn yellow during long-term use. The detection of anti-aging properties can be carried out by measuring the pH value of the paper, the color difference value after ultraviolet radiation and other indicators.
The above performance indicators are the key content of white board paper testing, and different use requirements and standards will also affect the testing standards and methods of paper.
