Antifalsification paper

Antifalsification paper is a general term for special papers that are not easily counterfeited, falsified or modified but have marks or hidden marks (designs, patterns, watermarks, numbers, etc.) on their surfaces. Anti-counterfeiting is a measure taken to prevent the activity of imitation or reproduction for the purpose of deception and without the permission of the owner. Typical main safety paper and bank-note paper (bank-note paper; Currency paper). Its tensile strength, wear resistance, folding resistance is very high. It has excellent water resistance and gravure printability. With COTTON AND HEMP fibers as raw materials, after mild cooking, bleaching, beating (humidifying strength agent, such as UREa-formaldehyde resin, melamine formaldehyde resin), on a specially designed long net paper machine, after pressing watermark or security line, the paper is formed by sizing, and then the product is made by drying, pressing light and surface plastic coating. In order to improve the anti-counterfeiting performance of paper, there are a variety of special fibers (such as red and blue fiber, fluorescent fiber, magnetic fiber) in the process of paper making.

The anti-counterfeiting paper produced by liquid crystal coating can show authenticity by changing the color through temperature change. Used to make banknotes, bank checks and coupons, etc.

Product Classification

1. Fiber paper: when making paper, the red and blue colored fibers or colored small pieces (dots) are mixed into the pulp, or sprinkled on the surface of the paper before the paper is shaped, and there is fluorescence reflection under ultraviolet irradiation, so that the paper is with colored fibers different from the paper itself.

2. Anti-counterfeit holographic paper: holographic products based on paper are divided into two types: transfer type and non-transfer type. Laser anti - counterfeiting technology combined with paper made anti - counterfeiting paper. The first is transfer method: the use of holographic anti-counterfeiting technology and special equipment, the holographic image transfer method (hot stamping, composite stripping, UV light curing, etc.) partial or total transfer on paper. The second is the direct plating method: on the paper coated with polymer coating and straight aluminum plating, and then the holographic image molding. The characteristics of anti-counterfeiting holographic paper to improve the anti-counterfeiting performance are as follows:

3. Water printing paper:

Waterprinting paper is embossed, fluoroscopic, tactile image, bar code and other paper. Banknotes with watermark security technology. There are three kinds of watermark: fixed watermark, semi-fixed watermark and unfixed watermark.

4. Nuclear waterprinting paper:

It is a special anti-counterfeiting paper of super energy ion medium, which is based on the large heavy ion accelerator controlled by the state and integrates the ion micropore technology with the paper making technology. It solves the problems of anti-counterfeiting and identification difficulties of effective certificates which have been troubled for a long time.

5. Anti-counterfeiting paper with safety line: refers to a gold line or plastic line placed in the middle of the paper during papermaking. The earliest use of special metal wire, now use polyester plastic wire, miniature letter safety wire, fluorescent safety wire, magnetic wire, etc.

6. Copy-proof paper:

One is all-absorbing resistant paper, blue and brownish-red, on which the text is visible only through light and the copy is dark.

7. Carbon-free carbon paper:

Carbon-free carbon paper has three layers: the upper layer (the back of the base paper coated with a layer of microcapsule wrapped hair colorant); Middle layer (in addition to the top layer and the bottom layer of the multilayer structure, can be regarded as middle layer, middle layer of paper base paper is coated with a layer of chromogenic agent, coated with a layer of microcapsule wrapped chromogenic agent on the back); The lower layer (the front of the base paper is coated with a layer of chromogenic agent), which uses strong external pressure (such as writing) to act on the front of the upper layer, and the microcapsule on the back is broken, and the chromogenic agent contacts the front of the lower layer, and the chromogenic reaction occurs.

8. Paper with trace additives:

The addition of a special compound to pulp or to a portion of paper when sizing the surface of the paper, such as the incorporation of a very small amount of antigen-antibody into pulp or paper by means of the principle that organisms have antigen-antibody specific reactions.

9. Security paper containing UV inhibitors:

First, it can be absorbed by the paper, showing invisible marks in the dry state, and visible marks in the wet state;

Second, the application of UV inhibitors does not affect the color of the paper, dry state with ink absorption;

Third, suitable for the use of printing roller, plate or other mass production equipment, can be the secret imprint on the paper.

10. Laminated dyed forgery proof cardboard

The laminated dyed white paper board is made of multiple layers of paper pulp. The inner layer is stained, and the surface layer is no different from the white paper board. The number of dyeing layers and color sequence can be personalized design, and single multicolor fiber can be added to each pulp, which is conducive to the identification of authenticity. Because of the complexity of the process and the huge investment, it is difficult to fake.

Product use

Color surface mark or hidden secret (pattern, pattern, watermark, number, etc.), not easy to imitate, do false or change the special paper class collectively. Anti-counterfeiting is a measure taken to prevent the activity of imitation or reproduction for the purpose of deception and without the permission of the owner. High tensile strength, abrasion resistance and folding resistance. It has excellent water resistance and gravure printability. In order to improve the anti-counterfeiting performance of paper, there are a variety of special fibers (such as red and blue fiber, fluorescent fiber, magnetic fiber) in the process of paper making.