In this case, spot color appears to make up for this deficiency. Spot color is printed directly by chromatography, which distributes the required ink color according to the proportion of chromatography. The color does not need point density to control, 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 the color master to find the proportion of ink. The special color printing of four-color printing pictures in Shandong printing factory generally plays an important role in books and periodicals, but it is mostly used for packaging, which makes the printing color more textured and visual impact stronger, such as cigarette packaging.

臺(tái)歷打印設(shè)計(jì)要考慮到實(shí)際尺寸與日歷寬度長(zhǎng)度的比例;設(shè)應(yīng)考慮實(shí)際尺寸的月歷與長(zhǎng)寬比:有的月歷是方形的，有縱向長(zhǎng)條的，也有橫向長(zhǎng)方形的，設(shè)應(yīng)考慮實(shí)際尺寸與長(zhǎng)寬比的關(guān)系，設(shè)計(jì)后盡量美觀。

The proportion between the actual size and the width and length of the calendar shall be considered in the design of desk calendar printing; The design shall consider the actual size of the monthly calendar and the length width ratio: some monthly calendars are square, with longitudinal strips and transverse rectangles. The design shall 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

Factors affecting flying ink

(1)油墨黏渡過(guò)大，油墨在墨輥出口處被拉長(zhǎng)，易產(chǎn)生飛墨，同時(shí)還會(huì)構(gòu)成傳墨不勻，使紙張拔毛脫粉，濟(jì)南臺(tái)歷印刷紙張從橡皮布上剝離艱難，易花版、掉版等;黏渡過(guò)小，墨層團(tuán)結(jié)不佳，易產(chǎn)生飛墨，同時(shí)易使油墨乳化，起浮臟、糊版、網(wǎng)點(diǎn)擴(kuò)展，影響印刷產(chǎn)質(zhì)量量。

(1) The ink viscosity is too large, and the ink is elongated at the outlet of the ink roller, which is easy to produce flying ink. At the same time, it will also form uneven ink transmission, which will make the paper hair and powder removal. It is difficult to peel the printing paper of Jinan desk calendar from the blanket, and it is easy to flower and drop the plate, etc; The viscosity is too small and the ink layer is not united well, which is easy to produce flying ink. At the same time, it is easy to emulsify the ink, float dirty, paste plate and dot expansion, which affect the printing output 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(shí)，版上油墨只需抵達(dá)2.8g/m2就行;但用膠版紙印刷，版上油墨少要抵達(dá)4g/m2。遇到紙張性能對(duì)油墨黏附力不好的狀況，易構(gòu)成墨輥堆墨，從而產(chǎn)生飛墨。

(2) The thicker the ink layer on the ink roller, the larger the flying ink. Proofing on coated paper, the thickness of ink layer is 1.2 μ M, the ink on the plate only needs to reach 2.8g/m2; However, when printing with offset paper, the ink on the plate should reach 4G / m2. In case of poor adhesion of paper performance to ink, it is easy to form an ink roller to pile ink, resulting in flying ink.

(3) 墨輥外表凹凸不平及外表干結(jié)龜裂時(shí)，局部油墨層加厚，墨霧量加大，易產(chǎn)生飛墨。

(3) When the surface of the ink roller is uneven and the surface is dry and cracked, the local ink layer is thickened and the ink mist is increased, which is easy to produce flying ink.

(4) 印刷速度增加，飛墨加大。

(4) The printing speed increases and the flying ink increases.

(5) 空氣相對(duì)濕度小，飛墨產(chǎn)生;濕度加大時(shí)，電荷減少，飛墨質(zhì)變小。

(5) The relative humidity of air is small, and flying ink is produced; When the humidity increases, the charge decreases and the quality of flying ink decreases.