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画册印刷特种技术的相关知识介绍
作者:admin 来源:http://www.sdhzyw.com 发布时间:2016-3-14 16:08:55 浏览次数:365
纸张是印刷画册或是各种证券的物质基础,一些采用特殊工艺制造的专用纸基本上就具有防伪特点,在专用纸张中采用的防伪技术主要有:
Paper is printed brochures or the material basis for the various kinds of securities, some made of special paper is basically a special process anti-counterfeiting features, in special paper used anti-counterfeiting technology mainly include:
1.水印纸
1. Water marked paper
水印纸在制造过程中,可利用技术手段将所需要的标识、图案等做入纸中,这些图案平常情况下不易看出,只有对着强光才能看清,被世界各国防伪专家公认为是一种行之有效的防伪技术,大多数国家的钞票、重要的国际文件、设施图纸和各种票证也都用水印纸印刷。
Available water marked paper in the process of manufacturing, technology will be required to identify, design, such as do into the paper, the pattern is normal circumstances is not easy to see, only to the light to see, in the security experts around the world as an effective anti-counterfeiting technology, most countries money, important international documents, drawings and all kinds of tickets are using water marked paper printing.
2.安全线
2. The safety line
安全线是指在造纸过程中将一条金线或塑料线置於纸张中间。安全线更早使用的是特制金线,现在使用的是塑料线并已发展成多种多样,如微型字母安全线,荧光安全线等。其安全线的形状有直线、波浪形、锯齿形等。
Security line refers to the papermaking process will be a gold wire or plastic line in the middle of their paper. Safety is the first to use a special gold thread, now use plastic wire and has developed into a variety of, such as micro letters line, fluorescent security line, etc. The line shape with straight, wavy, serrated.
3.红蓝纤维丝或彩点
3. The red and blue filaments or color
在造纸过程中将红蓝纤维或彩色小片(点)掺入纸浆内,或在纸张未定型前撒在纸张表面,在紫外线照射下有荧光反射。红蓝纤维丝和彩点在纸张中有固定位置和不固定位置两种。
Red and blue fiber in papermaking process or color (or points) mixed with pulp dice, or in paper before finalize the design on the paper surface, there are fluorescent reflex under ultraviolet light. Red and blue filaments and the color points in the paper, which has two kinds of fixed position and is not a fixed position.
4.防复制用纸
4. The copy paper
这种纸张复印后,会浮现”复制”和”无效”的字样,可有效防止彩色复印重要文件。另一种全吸收型防复印纸外观呈蓝色或棕红色,纸上图文只有透过光才能看到,其复印件一片漆黑。
After this paper copy, can appear "copy" and "invalid", which can effectively prevent color copy of important files. Another full absorption type appearance of the copy paper is palm red, or blue paper only through the light to see by, the copy was in complete darkness.
5.无荧光专用纸
5. No fluorescent special paper
一般纸张在紫外照射下均显有荧光。于是印钞纸及一些有价证券或票据则采用无荧光的专用纸防伪。如各国的纸币、护照以及一些票证的纸基均无荧光,这样也更容易显露出附加暗记的荧光图文。
In general paper are showing fluorescence under uv irradiation. Then print ChaoZhi and some securities or instruments, the use of the no fluorescence from security. Such as paper money, passport, and some paper ticket no fluorescence, so also are more likely to show additional memorization fluorescent graphic.
例如多色串印,多色串印也称串色印刷或彩虹印刷,一般多采用凸版印刷机印刷,它是根据印品要求,在墨槽里放置隔板後,再在不同隔版里分别放入多种色相的油墨。在串墨辊的串动作用下,使相邻部份的油墨混合後再传至印版上。采用这种印刷工艺,可以一次印上多种色彩,并且中间过渡柔和。由於从印品上很难看出墨槽隔板的放置距离,故也能起到一定的防伪作用。如果在大面积的底纹印刷上采用这种工艺,其防伪作用将更为突出。
Such as multi-color printing, multicolor printing is also called chain or rainbow printing color printing, use letterpress printing more commonly, it is based on printing quality requirements, after the ink box placed partition, again in a different version of the insulation in a variety of color ink, respectively. In ink roller chain under the action of the adjacent parts of ink mixing before transfer to plate. Using this kind of printing process, can be a printed on a variety of color, and soft transition in the middle. Because it is hard to see from the print ink trough the placement of baffle plate distance, it could also play a security role. If use this process on the background of large area printing, its anti-counterfeiting effect will be more prominent.