| 摘要 |
The purpose of the present invention is to provide a security fiber capable of being uniformly with a paper stock having hydrophilicity, whereby the binding strength between the security fiber and the paper stock is enhanced, and the security fiber can be well mixed with the paper stock during a paper making process for making security paper, so the security fiber has a uniform distribution in the paper stock. In addition, the purpose of the present invention is to provide a security fiber, which is not damaged while being mixed with the paper stock for the security paper, leads to the simplification of the manufacturing process, and has uniform colored quality. To achieve these purposes, the present invention provides a security fiber comprising: a first cellulose fiber layer; and a first print layer formed on the first cellulose fiber layer using at least one of materials that are excited by non-visible light to emit light in a visible light region or absorb and reflect infrared light. In addition, a first print protection layer and a first anti-static agent layer are further formed on the first print layer, and a second anti-static agent layer is further formed below the first cellulose fiber layer. According to the present invention, the dispersibility of the security fiber in a solution is improved and the binding strength of the security fiber with a paper stock is enhanced, so the surface of the finally produced security paper can be smoothened. In addition, the present invention can provide a security fiber which has a reduction in the damage of the security fiber, which may occur during the mixing with the paper stock for the security paper, leads to the simplification of the manufacturing process, and has uniform quality at the time of mass production. |
