Eight kinds of special paper knowledge

Carbonless Paper (NoCarbon Requiredpaper)

One side of the paper is coated with microcapsules (CB). The capsule contains pigment and the other side is coated with a color developer (CF surface). When used, the CB surface corresponds to the CF surface. When the paper is pressed, the microcapsules on the CB surface are broken. The pigments escape and react with the color developing agent on the CF surface to develop color, and this principle is used to achieve the effect of replication. In general, NCR can be divided into three types: upper paper, middle paper, and lower paper, and the composition can be adjusted according to the number of copies required.

Thermal Paper

The surface of the paper is coated with a paint containing a color material. The color material undergoes a chemical reaction by heating to develop a color, and a movable thermal head can be used to develop a color in the heated area. The facsimile machine uses this principle and a combination of thermal paper to achieve the color. The power of fax appearance.

Inkjet Printing Paper (InkJetPrintingPaper)

The ink is exposed directly on the paper surface through the spray head. To achieve the characteristics of small diameter, neat edges and high density, the paper must have a fine porous structure. In the case of multi-color ink jet, in order to reduce burrs, misalignment, and print-through phenomena, it is necessary to strictly control the water absorption and water repellency of the paper surface.

Photo Paper (Plain PaperCopy, abbreviated as ppc)

The paper used in the copying machine must have dimensional stability, antistatic properties, and good carbon ink characteristics in order for the photocopying work to be smooth.

Even (di) nitrogen sensitive paper (DiazoPaper)

The positive paper sensitized paper is prepared by coating the even (heavy) nitrogen photosensitive liquid on the base paper, in order to obtain a uniform and detailed light-sensitive effect, and the base paper to be coated must be evenly interlaced, free of impurities, low in pH, high in the degree of sizing, and even in the paper surface.

Electrotic Recording Paper (Electroatic Recording Paper)

The paper surface is coated with a conductive layer and an insulating layer coating, and the voltage discharged from the needle electrode can withstand the insulation on the paper surface to form an electrostatic latent image with the conductive layer, so that the developer can adhere to the pattern when it is added, and then The hot melt is fixed on the paper to produce a clear pattern.

Optical Reading Paper (Optical Character & Mark Reader Paper)

Printed paper used on optical readers to read text, figures called QCR, reading special marks called OMR, because it uses optical absorption or reflection to read, to avoid misreading, cleanliness and smoothness of the paper Properties, abrasion resistance, dimensional stability, and high resistance to charge.

Magnetic recording paper (MagenticInkCharacterReadingpaper, MICR paper)

The surface of the paper is coated with a strong magnetic particle powder, and magnetic ink can be used to print a computer-readable paper, which is mainly used for valuable tickets, such as securities, tickets, and passes. . . Wait.

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