纸币防伪防伪线

为了鉴别钞票的真伪，我们总是有意识地透过光线来检查。看什么主要看两种防伪技术的应用，一是水印，二是钞票中间防伪线的情况。今天给大家简单介绍一下 安全线程防伪的情况。

At present, almost 90% of Chinese and foreign banknotes use Security thread anti-counterfeiting. This technology can be said to be one of the most popular and effective anti-counterfeiting technologies. The security thread is actually in the process of making banknotes. In the paper, special metal wires or polyester plastic wires of different colours, microprinted wires or fluorescent wires are embedded in specific positions of the paper. A full or interrupted (windowed) line can be seen buried in the paper base when viewed in the light. The shape of the line is generally straight, but there are also wavy, zigzag and so on.

The history of security thread-Security thread anti-counterfeiting supplier

In the early 1930s, Stanley Chamberlain, general manager of the Bank of England's banknote printing plant, cooperated with the Porter Company to experiment with adding anti-counterfeiting security threads to banknotes, so it was also called "Chamberlain Line". This thread is flexible, resistant to folding, not easy to break and can be adapted to high-speed paper machines. The security line was quickly recognized as a method of public identification. The thread was patented in 1935 and first applied to a pound note issued by the Bank of England on March 29, 1940.

Types and Changes

1. Fully buried security thread-Security thread anti-counterfeiting supplier

The safety thread can be divided into two categories due to its different papermaking processes: one is the fully buried safety thread, and the other is the window opening type safety thread. Modern banknotes basically use the above two methods to release them into banknotes, sometimes using one (fourth and fifth edition RMB), and sometimes using both at the same time (Denmark, Macau).

The fully buried safety line appeared earlier than the windowed safety line in time, and the shape in different periods was also different. There were various changes over time. The safety line itself became more complicated and the anti-counterfeiting effect was more prominent.

In the 1960s and 1970s, many western developed countries mostly adopted a black metal security line, such as West Germany, Italy, Austria and so on. Since the 1980s, a large number of countries have successively used this kind of security line. Including the fourth edition of the renminbi, which was only used in the mid-to-late 1980s.

In the 1970s and 1980s, many changes were also made to the fully buried safety line. For example, the red polyester safety line in Thailand made beneficial changes to the material and colour. Of course, there are also changes in the shape of lines, etc. The most representative is the 50 pounds in circulation in the 1980s. The safety line in the middle is a straight line on the left and a wavy line like a zigzag on the right. The process is more complex. The safety thread is produced on equipment developed by the Bank of England in cooperation with the UK Atomic Energy Agency, and the contour edges are made with a controlled laser beam.

Since the 1990s, there have been many changes in the fully buried safety line. Microtext and hollow text have been added to the safety line. Magnetic safety lines and fluorescent safety lines have also appeared in large numbers. The two dollars are different safety lines in the early and mid-1990s The thread, especially the security thread, not only increases the miniature national flag pattern, but also the security thread of each denomination presents a different colour under ultraviolet light, which is blue, orange, green, yellow and red in order from 5 to 100 dollars. relatively characteristic.

全埋式防伪线采用大量带有微型字符的防伪线，光线观察清晰可辨。造假者很难满足这样的工艺要求，因此具有良好的防伪效果。“马达加斯加银行”交替出现在微缩文字中，表面被打断，但实际上，纸基中埋藏着一条完整的安全线。

在灯光下可以观察到瑞典克朗上完全掩埋的安全线。镂空文字细腻，清晰度和透光率都很高，很容易被大众识别。瑞典安全线的复杂性是显而易见的。

法郎上的安全线也很有特点。到目前为止，我只看到了法郎上带有“黑点标记”的安全线，我也在藏友的留言中证实了我的猜测，这是一条腰带。带有磁性编码的磁性安全线。

共兴线带机械 是一家成立于2001年的公司，是一家专业生产各种防伪线的公司。公司产品广泛应用于护照、证件、证件等产品的装订。本产品具有自主知识产权。公司技术和研发实力雄厚，是中国电子护照防伪装线材的唯一供应商。我公司生产的防伪装绑线强度好，不易折断，防伪系数高，多重防伪，表面光滑，操作方便。现在很多印刷企业都在使用我公司的捆扎线来提高产品质量，加强防伪。普通缝纫线。公司愿为客户开发生产各种高难度的捆扎线和各种编织绳。真诚携手、共赢、共享，上海共兴皮带机械有限公司愿与您携手共进！