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浅析包装印刷油墨颜色调配的基本常识

1、油墨颜色

1, ink color

印刷油墨的颜色取决于颜料的选择和组成。人类为了商品及商品包装的需要,开发了新油墨颜色品种和改进了传统的颜色色相的质量。

The color of printing ink depends on the choice and composition of pigment. For the needs of commodity and commodity packaging, human beings have developed new ink color varieties and improved the quality of traditional color hues.

承印物上油墨色彩往往受到它本身色度的制约及环境光线的影响。如在标准光源下是绿、红、白色等。但如果环境光线或照射条件改变了,如红光射入白色油墨墨膜上会使白色的包装印刷油墨带上红色。任何一种包装承印物体的表面装潢颜色并非一看即知。应该依据颜色色度等知识,不断研究油墨墨膜色彩变化的规律,才能印出好的产品。

The ink color on the substrate is often influenced by its own chroma and the influence of ambient light. For example, it is green, red, white and so on under the standard light source. But if the ambient light or illumination conditions change, such as red light into the white ink film will make the white packaging printing ink red. The surface decoration color of any package is not to be known at all. According to the knowledge of color chromaticity and so on, we should study the law of color change of ink film constantly, so as to print a good product.

2、印刷装潢同色异谱的概念

2. The concept of the same color spectrum in printing and decoration.

要满足包装印刷油墨颜色品种的需求,只靠现有几个颜色是不够的。必须经过一定的配色过程才能得到市场上成品彩色油墨系列化的要求。间色或复色一经印刷得到了新的颜色色相,这既符合正常的包装印刷规律,也符合配色规律。

It is not enough to meet the needs of printing and printing ink color varieties. It is necessary to pass certain color matching process to get the requirements of serialization of finished product color ink on the market. After printing, new color hues were obtained, which not only accorded with the normal law of packaging printing, but also accorded with the law of color matching.

为了实现上述的要求,提出了同色异谱颜色的概念。光谱分布不同的油墨颜色样品,对于彩色包装印刷油墨配色十分重要。即利用不同的油墨颜色可以调配出同一油墨颜色的品种。

In order to achieve the above requirements, the concept of the same color spectrum is proposed. Ink samples with different spectral distribution are very important for color matching of color package printing ink. That is, the use of different ink color can be transferred out of the same ink color varieties.

在实际配色时只能达到一定程度的近似,并可通过光谱反射率因数曲线形状去评定。两个样品的反射率因数曲线越近似,越重合,交叉点就越多,则越能够证明所调配的颜色色相接近样品。还可通过两个油墨样品色度算出色差值进行定量分析。表明它们同色异谱程度的多少。

山东印刷包装

It can only be approximated to a certain extent in practical color matching and can be evaluated by the shape of spectral reflectance coefficient curve. The more similar and coincident the reflectivity coefficient curves of the two samples, the more intersections, and the more proof that the color matched is similar to the sample. The color difference can be calculated through two ink sample chromaticity for quantitative analysis. It shows the extent of their chromatic spectrum.

3、色彩调配的基础知识

3. Basic knowledge of color deployment.

在包装印刷油墨体系中,连结料是无色或带有微色液体、折射率和水很接近,所以连结料具有一定的透明度,当加入颜、填料后,由于颜、填料阻挡了光线的射人,从而导致油墨光学性质的改变。

In the packaging printing ink system, the binder is colorless or with a slight color liquid, refractive index and water is very close, so the binder has a certain degree of transparency, when adding pigments and fillers, because pigments and fillers blocked the light from shining, resulting in changes in the optical properties of the ink.

当日光射入黄色彩印油墨墨膜时,则表示它将日光中的蓝色光谱吸收掉而发射出黄光和绿光。当反射出的黄光和绿光又遇到蓝色颜料颗粒时,往往会将其反射出的蓝光吸收只余下绿光。

When sunlight enters the yellow ink film, it means that it absorbs the blue spectrum of sunlight and emits yellow and green light. When the reflected yellow and green light encounters the blue pigment particles again, the reflected blue light will absorb only the remaining green light.

由此经过一系列的反射、折射之后只体现绿色油墨墨膜。因此,我们称这种印刷油墨颜色的混色是减差混合(互相吸收各自所需的波长,而不会被吸收的光谱反射出来),这就是混合色(或复色)的由来。

After a series of reflection and refraction, it only reflects green ink ink film. Therefore, we call this printing ink color mixing subtractive mixing (absorb each other's required wavelengths without being reflected by the absorption spectrum), which is the origin of the mixed color (or compound color).


 
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