在這種情況下專色出現,來彌補這種不足,專色是由的色譜法,根據色譜的比例分配所需的油墨顏色直接印刷,顏色不需要點密度來控制,所以整個顏色是固體,看起來更紋理。專色是金色和銀色，但實際上潘通光譜中有成千上萬種專色。如果所需要的顏色不在色譜上，也可以根據色彩大師的經驗來調整所需要的顏色，來找到油墨的比例。四色印刷圖片專版彩印一般在讀物書刊中起點綴作用，但多用于包裝，使印刷色彩更有質感，視覺沖擊力更強，如香煙包裝等。
In this case, spot color appears to make up for this deficiency. Spot color is directly printed according to the proportion of the chromatogram to allocate the required ink color. The color does not need to be controlled by point density, so the whole color is solid and looks more textured. Spot colors are gold and silver, but there are actually thousands of spot colors in the Pantone spectrum. If the required color is not on the chromatogram, you can also adjust the required color according to the experience of color masters to find the proportion of ink. Four color printing picture special color printing generally plays an important role in books and periodicals, but it is mostly used for packaging, which makes the printing color more textural and has stronger visual impact, such as cigarette packaging.
臺歷掛歷打印設計要考慮到實際尺寸與日歷寬度長度的比例;設應考慮實際尺寸的月歷與長寬比:有的月歷是方形的，有縱向長條的，也有橫向長方形的，設應考慮實際尺寸與長寬比的關系，設計后盡量美觀。
The design of calendar printing should consider the ratio between the actual size and the width of the calendar; the design should consider the actual size of the calendar and the length width ratio: some calendars are square, there are longitudinal strips, there are also horizontal rectangular, the design should consider the relationship between the actual size and the length width ratio, and try to be beautiful after design.
影響飛墨的要素：
The factors that affect flying ink are as follows
(1)油墨黏渡過大，油墨在墨輥出口處被拉長，易產生飛墨，同時還會構成傳墨不勻，使紙張拔毛脫粉，濟南臺歷印刷紙張從橡皮布上剝離艱難，易花版、掉版等;黏渡過小，墨層團結不佳，易產生飛墨，同時易使油墨乳化，起浮臟、糊版、網點擴展，影響印刷產質量量。
(1) The ink is too sticky, and the ink is elongated at the outlet of the ink roller, which is easy to produce flying ink. At the same time, it also causes uneven ink transfer, which makes the paper hairy and powdery. It is difficult for Jinan calendar printing paper to peel off from the blanket, and it is easy to print and drop; It is easy to produce flying ink, emulsify the ink, float dirty, paste plate and dot expansion, which affect the printing yield and quality.
(2)墨輥上墨層愈厚，飛墨愈大。打樣在銅版紙上，墨層厚度在1.2μm時，版上油墨只需抵達2.8g/m2就行;但用膠版紙印刷，版上油墨少要抵達4g/m2。遇到紙張性能對油墨黏附力不好的狀況，易構成墨輥堆墨，從而產生飛墨。
(2) The thicker the ink layer on the roller, the larger the flying ink. For proofing on coated paper, when the ink layer thickness is 1.2 μ m, the ink on the plate only needs to reach 2.8g/m2, but for offset paper printing, less ink on the plate needs to reach 4G / m2. When the paper performance is not good for ink adhesion, it is easy to form ink roller pile, resulting in flying ink.
(3) 墨輥外表凹凸不平及外表干結龜裂時，局部油墨層加厚，墨霧量增大，易產生飛墨。
(3) When the roller surface is uneven and the surface is dry and cracked, the local ink layer thickens and the amount of ink mist increases, which is easy to produce flying ink.
(4) 印刷速度增加，飛墨增大。
(4) With the increase of printing speed, the flying ink increases.
(5) 空氣相對濕度小，促進飛墨產生;濕度增大時，電荷減少，飛墨質變小。
(5) When the air relative humidity is low, it promotes the production of flying ink; when the air relative humidity increases, the charge decreases and the quality of flying ink decreases.
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