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Ming Bo Anti-forgery ink: ink color tips

    Ink color allocation is an important work before printing, but also very abstract work.Simple subtractive primary colors, yellow, magenta, cyan adjustable out red, orange, yellow, green, cyan, blue, purple and other dozens of colors.In actual deployment process, it can not obtain tricolor ink color, this is because the ink manufacturers selected pigments, dyes do not meet the international standard color saturation, color density, brightness, three equal basic colors of ink added only tea grey, not black.Therefore, in the actual color process is inseparable from the black ink, white ink, diluent ink and additives.

    Inking process

1 master ink system, color, color saturation, viscosity, fineness index for.

2 of the proofs and customer requirements, process requirements, color, ink usage requirements for validation requirements, for each color set of color sequence arrangement, product printing, ink usage, main color blending to understand.

The 3 diluent and ink resin dissolved, the temperature deviation and diluent ratio are related, such as high temperature, diluent should adopt the slow type.At the same time, the dissolving effect, volatilizing speed also plays a very important role in the quality of printing products, therefore according to select the appropriate conditions of diluent.

Ready to do a good job of ink, thinner to 4 before printing.

5 in short time on overprinter, according to the collocation of color, the appropriate use of basic colors of ink, and a good grasp of the proportion, in accordance with the proofs of each color group ink color blending, and make the printing speed stability, a little adjustment can achieve the proof effect.In the normal printing, batch control hue is identical, the ink is difficult, such as diluent addition will affect the degree of color effect, which requires the inking personnel should have a strong sense of responsibility.

Ink notes

1 in the shade to meet the requirements of the situation, the ink color varieties less easy to control.Can use color ink do not use color ink, in accordance with the subtractive, more color spot color ink using the saturation will be lower, the corresponding increase in black composition.

2 confirm the main colors printing and the secondary color, color ink as ink, ink color ink as the other, mainly basic ink, color ink as a supplement, the deployment of spot-color ink will be faster, more accurate.

The 3 deployment of sampling and sample ink, try to use the same paper with printing paper, because the ink color will change with the different factors such as paper absorbency.Only to maintain the stability of the paper, in order to avoid color error caused by the difference of paper.

4 with the ordinary white cardboard sample or scraping, ink layer thickness will directly affect the color of ink, ink layer is thin, light color, high brightness.Site or the network cable, wet or wet dry, powder quantity is large or small, the paper surface smoothness, whiteness, ink layer thickness and so on different will cause the color difference.

The 5 tone of spot-color ink, first of all to saturated hue out of ink, a thin sample, confirm the lack of color and secondary color, and then diluting agent to the desired spot.

6 Influence Factors of spot color ink color include printing process, the water, ink quantity control, speed and printing equipment, should grasp the printing and its rules, to ensure product quality.

Master of spot-color ink, ink quantity control, the deployment of ink left the full use, not only can save material, but also on the technical level of the personal qualities, will have a corresponding increase.An excellent ink industry, plays a very important role to reduce the new ink development, innovation, color ink cost.深入了解。

    3.稀释剂与油墨树脂的溶解性、气温偏差和稀释剂的配比是相关的,如气温高则稀释剂应采用慢干型。同时,溶解效果,挥发速度对产品的印刷质量也起着非常重要的作用,因此要根据相关条件选择合适的稀释剂。

    4.印刷前要做好油墨、稀释剂的准备工作。

    5.在开机套印的短暂时间里,要根据颜色的搭配,适当利用原色墨,并把握好比例,依照样张对每一色组油墨的色相进行调配,使印刷车速稳定后,稍加调整即可达到样张效果。在正常印刷中,批量控制色相相同,对调墨人员来说难度较大,如稀释剂的添加量等会不同程度地影响颜色效果,这就要求调墨人员要具备较强的责任心。

    调墨注意事项

    1.在色调符合要求的情况下,所用油墨的色彩种类越少越容易调配和控制。能采用间色油墨就不要采用复色油墨,按照减色法,专色油墨采用的颜色越多其饱和度就会越低,黑色成分就相应增加。

    2.确认印刷品的主色调及所含的辅色调,主色调墨作为基本墨,其他墨作为调色墨,以基本墨为主,调色墨为辅,这样调配专色油墨才会更快,更准确。

    3.调配打样和小样油墨时,尽量使用与印刷所用纸张相同的纸,因为油墨的颜色会随着纸张吸收性的差别等因素而变化。只有保持稳定的纸质,才能避免因纸张的差别而造成的颜色误差。

    4.用普通白卡纸打小样或刮样,墨层的薄厚会直接影响墨迹的颜色,墨层薄,则颜色浅、亮度高。实地或网线,湿压湿或湿压干,喷粉量大或小,纸张表面的平整度及白度,墨层的薄厚等不同都会引起颜色的差别。

    5.调专色油墨,首先要调出油墨的饱和色相,打出薄薄的小样,确认不缺少主色调和辅色调后,再用冲淡剂调至所需的专色。

    6.影响专色油墨颜色因素还包括印刷工艺,水量、墨量控制,车速及印刷设备等,应把握印刷及其规律,确保产品质量。

    掌握专色油墨的调配、油墨用量的控制、剩墨的充分利用等,不仅能够节约材料,而且对个人素质、技术水平都会有相应的提高。一位优秀的调墨工,对新型油墨的开发、色彩的创新、油墨成本的降低起着很重要的作用。

 


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