目前，数字印刷发展迅速，特别是喷墨印刷，主要使用水性油墨。数码印刷中存在网点放大问题。喷墨打印的网点扩展主要有光学网点扩展和物理网点扩展。光学网点膨胀主要是由于光线在纸张内部的物理反应引起的，而物理网点膨胀主要是由于油墨在纸张上的扩散和渗透引起的。印刷厂会对纸张的哪些方面考量？下面济南书刊杂志印刷厂家为您分析：

At present, digital printing is developing rapidly, especially inkjet printing, which mainly uses water-based ink. There is a problem of dot amplification in digital printing. The dot expansion of inkjet printing mainly includes optical dot expansion and physical dot expansion. Optical dot expansion is mainly caused by the physical reaction of light inside the paper, while physical dot expansion is mainly caused by the diffusion and penetration of ink on the paper. What aspects of paper will the printing factory prioritize? Below is an analysis by Jinan book and magazine printing manufacturers for you:

1.白度和色差

1. Whiteness and color difference

由于大小和造纸工艺的差异，纸张形成色差。白度是纸张的一项重要光学性质。当光线照射到纸张上时，会发生反射、折射、散射和吸收。通过测量这些光在特定条件下的通过量，可以得到纸张的光学性质。

Due to differences in size and papermaking process, paper forms color differences. Whiteness is an important optical property of paper. When light shines on paper, reflection, refraction, scattering, and absorption occur. By measuring the amount of light passing through under specific conditions, the optical properties of the paper can be obtained.

纸的白度主要是通过以定长光波为中心在样品上的反射率来测定的。这种方法没有考虑人眼的视觉特性。因此，在印刷中使用对应的值来表示纸张的颜色，不仅可以直接反映纸张的白度和色差，而且与人眼对颜色的视觉一致。

The whiteness of paper is mainly measured by the reflectivity of the sample centered on a fixed length light wave. This method does not take into account the visual characteristics of the human eye. Therefore, using corresponding values to represent the color of paper in printing can not only directly reflect the whiteness and color difference of the paper, but also be consistent with the human eye's visual perception of color.

2.光谱反射率

2. Spectral reflectance

当纸张的底色不是纯白色时，纸张上印刷色块的颜色可以说是油墨的颜色与纸张的颜色混合后的综合颜色。这样，纸张的底色就会出现色差。

When the background color of the paper is not pure white, the color of the printed color blocks on the paper can be said to be the combined color of the ink color and the paper color. In this way, the background color of the paper will show color difference.

在这种情况下，印刷厂的工作人员一定要对原稿的内容和颜色进行分析，并采取一些措施来纠正颜色，纸张的干扰。

In this case, the staff of the printing factory must analyze the content and color of the original manuscript and take some measures to correct the color and eliminate paper interference.

为了满足光谱颜色管理的研究趋势，印刷工厂需要纸的颜色特征参数，利用反射率在可见光波长范围内代表纸张和印刷的颜色，和研究之间的关系的反射率光谱反射率的纸张和印刷。

In order to meet the research trend of spectral color management, printing factories need color characteristic parameters of paper, which use reflectivity to represent the color of paper and printing within the visible light wavelength range, and study the relationship between reflectivity and spectral reflectance of paper and printing.

结果表明:纸张的光谱反射率与单色印刷的光谱反射率线性相关，而与多色印刷的光谱反射率线性无关。

The results indicate that the spectral reflectance of paper is linearly correlated with the spectral reflectance of monochrome printing, but not linearly correlated with the spectral reflectance of multicolor printing.

通过分析黄色、品红、青色油墨的光谱反射曲线，印刷厂可以找到不同的反射率高反射点和低反射点的每一种颜色的墨水的总和除以高反射点和低的反射率反射点相应的墨水非常接近的点面积率墨水。因此，可以用归一化方法预测青色、品红和黄色的网点面积值。更多相关事项就来我们网站https://www.sdhzyw.com咨询！

By analyzing the spectral reflection curves of yellow, magenta, and cyan inks, printing factories can find the sum of inks of each color with different reflectivity high and low reflection points divided by the point area ratio ink that is very close to the corresponding ink with high and low reflectivity reflection points. Therefore, normalization methods can be used to predict the dot area values of cyan, magenta, and yellow. For more related matters, come to our website https://www.sdhzyw.com consulting service