铜版纸是一种高品质印刷纸，以其高质量的表面光洁度和印刷效果而闻名. It is usually used for the printing of high-quality books, 杂志, 画册, greeting cards and other cultural publications, as well as high-end packaging, business cards and so on. In the manufacturing process of coated paper, a coating process is usually used to coat the surface of high whiteness paper with a layer of adhesive and white filler, so as to obtain a smooth surface and printing effect.

什么是铜版纸以及要测试哪些性能?

The detection of coated paper needs to pay attention to the following main properties:

厚度和密度: the thickness and density of coated paper will directly affect its stability and printing effect. 通过测量纸张厚度即可测量厚度和密度, 密度和基重.

光滑度: Coated paper needs to have a very smooth surface to ensure clarity and detail of text and images. The test of smoothness can be carried out by measuring the paper surface smoothness, feather height and plate crown and other indicators.

白度: Coated paper needs to have a certain whiteness to ensure the color restoration and contrast of the printed text and image. The detection of whiteness can be carried out by measuring the color and color difference of the light reflected by the paper.

光泽度: Coated paper needs to have a certain gloss to enhance the visual effect of the print. 光泽度的检测可以通过测量纸张表面的反射率来完成.

力量: Coated paper needs to be strong enough to withstand the tension and pressure in the printing process. 强度测试可以通过测量拉伸强度来进行, 纸张的撕裂强度和压缩强度.

Printing performance: coated paper needs to have certain printing performance to ensure the printing quality of printed matter. The detection of printing performance can be carried out by measuring the paper’s water absorption, 吸油量, printing clarity, color reduction and resistance to printing pollution.

环境保护: coated paper needs to meet environmental standards, 不含有害物质, 对环境无污染. Environmental protection can be tested by measuring paper volatile organic compounds, 重金属, chloride ions and fluorescence

Light brightening agent and other indicators to carry out.

粘接强度: The surface of coated paper is coated with a layer of adhesive and white filler, so its bonding strength also needs to be tested to ensure that the filler on the surface of the paper is not easy to fall off. The adhesion strength can be measured by measuring the peeling strength, cutting strength and ring compression strength of the paper.

Copper coating: copperplate paper is characterized by its surface through a layer of copper and polishing treatment, in order to obtain a good gloss and smoothness, so the quality and uniformity of copperplate paper coating also need to be tested. The detection methods include thickness measurement, surface quality detection and microstructure analysis.

The above performance indicators are the key content of coated paper testing. 不同的使用要求和标准也会影响纸张的检测标准和方法.