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彩印的印刷标准是怎么样的?

  印刷设计说明书上的油墨密度范围可用于任何油墨叠印序列,如YMC、YCM、CMY、CYM、MCY或MYC。但是打印设计中的每一个订单都会产生相同的颜色吗?不是真的。

电竞平台  The ink density range on the print design specification can be used for any ink overprint sequence, such as YMC, YCM, CMY, CYM, mcy or myc. But does every order in print design produce the same color? It's not true.

  即使将场密度控制在绝对值范围内,印刷设计中的每一个叠印序列也会产生不同的红、绿、蓝三种叠印颜色,因为每一个印刷设计的油墨配方都有不同的性质,如油墨不透明度,会影响覆盖范围。因此,首先印刷(印刷设计)的油墨干膜表面会影响印刷(印刷设计)的湿墨附着特性。

  Even if the field density is controlled within the absolute value range, each overprint sequence in the printing design will produce different red, green and blue overprint colors, because each printing design ink formula has different properties, such as ink opacity, which will affect the coverage. Therefore, first of all, the dry film surface of printing (printing design) ink will affect the wet ink adhesion characteristics of printing (printing design).

  黄色颜料遮盖性差,品红和青色颜料遮盖性好。但黄色颜料的油墨表面可以很高。

电竞平台  The yellow pigment has poor covering ability, and the magenta and cyan pigments have good covering ability。 But yellow pigment ink surface can be very high。

  在印刷设计中色彩管理的步是确定的油墨叠印顺序和密度平衡,提供高色彩范围。

  The first step of color management in printing design is to determine the best ink overprint sequence and density balance to provide a high color range.

  许多年前,GATF协会开发了一个简单的六边形颜色图,以可视化地匹配不同的颜色。密度计通过测量色相偏差、灰度和叠印颜色,并与原色进行对比,来显示色彩的优劣。

电竞平台  Many years ago, GATF developed a simple hexagon color map to visually match different colors. The densitometer can display the quality of color by measuring the color deviation, gray level and overprint color, and comparing with the primary color.

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  例如,在六边形的颜色图中,三个单独的角是理想的油墨原色(YMC),其他三个角是叠印复合色(RGB),六边形的是中性色(白色到灰色到黑色)。油墨色彩较强,越接近每个角落,越远离中性色彩。

电竞平台  For example, in a hexagon color chart, three separate corners are the ideal ink primary color (YMC), the other three corners are the overprint composite color (RGB), and the center of the hexagon is the neutral color (white to gray to black). Ink color strong, the closer to each corner, the more far away from neutral color.

  在实际印刷设,将印刷色彩和复合色彩分布成六边形的彩色地图,提出了三种基色油墨(CMY)和复合色彩(RGB)密度、色差和灰度值。因为油墨不是理想的,六边形(不规则)的分布将不一样的大小作为整个理想的六边形颜色,但它可以用于印刷。因此,利用GAFT方法进行不规则六边形分布,显示印刷设计的三原色和复合色信息,可以得到的密度和叠印序列。

  In the actual printing design, the printing color and composite color are distributed into hexagon color map, and three kinds of basic color ink (CMY) and composite color (RGB) density, color difference and gray value are proposed. Because ink is not ideal, hexagon (irregular) distribution will be different sizes as the whole ideal hexagon color, but it can be used for the best printing. Therefore, the best density and overprint sequence can be obtained by using Gaft to display the information of three primary colors and compound colors.

  通过测量颜色覆盖面积的大小,决定了整个油墨的色彩性能和印刷设计的色彩对比强度,当然越大越好。

  By measuring the size of the color coverage area, it determines the color performance of the whole ink and the color contrast intensity of the printing design, of course, the larger the better.

  其他密度值也可以作为打印设计测量序列的一部分进行分布,如25%的彩色点、505点、755点密度值。

  Other density values can also be distributed as part of the print design measurement sequence, such as 25% color points, 505 points, 755 point density values.

  如果这些其他色调值的分布是集中的,这意味着印刷设计在控制之中;否则,分布不集中,就意味着印刷设计失控,需要进行必要的调整。

  If the distribution of these other tone values is centralized, it means that the printing design is under control; otherwise, if the distribution is not centralized, it means that the printing design is out of control and needs to be adjusted.


 
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