The tipping paper is a packaging material for cigarettes and is used as an outer packaging for filters. It is a special industrial paper. In recent years, the tipping paper has been greatly developed and innovated in function and use. The use of docking paper for tobacco factories is not limited to simple packaging, but also pays attention to decoration. The printing aesthetics of docking papers have become more beautiful. High requirements. At the same time, with the growing popularity of cigarettes in health and environmental protection, the national and cigarette factories have put forward higher requirements for the health and environmental protection of the paper and its role in the cigarette defocusing project. These have made the performance requirements of all aspects of tipping paper continuously improved, and the production and processing technology has also been continuously improved.
First, the introduction of tipping paper
The tipping paper is a kind of decorative paper obtained by printing and coating the base paper and other methods, and has the function of improving the appearance of the cigarette. The current punched tipping paper and the high-transparent forming paper also have the function of reducing the focus. The production of tipping paper is mainly the gravure printing of the base paper by using paint (paste) or ink. By printing and slitting the base paper, it can conform to the use of tipping paper in terms of appearance and internal quality. Requires that it can adapt to the working requirements of high-speed filter nozzles. In addition, in order to improve the decorative performance and air permeability of the tipping paper, some tipping papers are also hot stamped and punched after printing.
Second, the processing of the tipping paper
The basic process of tipping paper printing can be roughly divided into the steps of coating (ink) preparation, printing and finished product slitting. The coating of the tipping paper has a regular, unequal coating, also known as patterned gravure printing, which is based on the pattern required for the tipping paper, and the printing plate produced by the electronic plate making the corresponding pattern on the base paper. . Gravure roll coating is a kind of accurate coating method, and the coating amount varies with gravure dot size, groove shape, groove depth, coating solid content, paint surface tension, base paper adsorption, and coating pressure. . The groove type of the gravure roll is usually three types: a slanted groove shape, a square pentahedral cone shape, and a square hexahedral trapezoid. The order of the coating amount is oblique groove shape, trapezoidal shape, and tapered shape. The rheology of the coating is related to the clarity of the printed pattern lines. When printing clear lines, the leveling of the coating should not be too high; when printing the entire uniform coating, the leveling of the coating is required to be good, so that the dots can be closed by itself after printing. . The gravure roll does not require high tensile strength of the base paper and is suitable for printing thinner base paper. The tipping paper is printed on the paper by two consecutive printing processes, and the paint paste with certain characteristics is printed on the paper to meet the requirements and purposes required by the product. After each printing, it is dried in the drying room, and after the printing is completed, the winding is performed, and then the cutting and sorting are performed to complete the printing of the tipping paper.
In recent years, as tobacco factories have increasingly emphasized the decoration modification of tipping paper, the coating printing of tipping paper has gradually changed from simple monochrome coating to multi-color gravure printing, and the color is gradually changed from the traditional single color. Become multi-colored.
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