Method for manufacturing fixed watermark paper by fourdrinier and equipment used in method
A fourdrinier paper machine and watermarking technology, which is applied in the paper machine, wet end of paper machine, papermaking and other directions, can solve the problems of different manufacturing watermark paper processes and the inability to use a Fourdrinier paper machine, etc., so as to improve economic and social benefits, The effect of increasing vehicle speed and increasing production capacity
Active Publication Date: 2014-10-08
中钞实业有限公司 +1
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[0005] Due to the different wire sections of the cylinder paper machine and the fourdrinier paper machine, the process of manufacturing watermark paper is different, so the process of manufacturing fixed watermark paper by the cylinder paper machine cannot be applied to the fourdrinier paper machine
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[0041] The technical content of the present invention will be described in detail below with reference to the drawings and specific embodiments.
[0042] The method for manufacturing fixed watermark paper using a Fourdrinier paper machine provided by the present invention is mainly realized by designing a fixed watermark net installed in the Fourdrinier paper machine. Such as figure 1 As shown, a watermark roller is installed on the Fourdrinier wire of the Fourdrinier paper machine, and the size and style of the watermark net of the watermark roller need to be designed according to the paper deformation coefficient of the fixed watermark paper and the style and size of the fixed watermark paper. Since the deformation coefficients of papers of different grams and different compositions are different, it is necessary to design different watermark nets accordingly for fixed watermark papers of different specifications and the same style. Thus, by installing a special watermark rolle...
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The invention provides a method for making fixed watermark paper by a fourdrinier and equipment used in method. The method includes steps of (1) designing patterns and size of the fixed watermark paper; (2) selecting raw materials and auxiliary materials and making paper with pulp; (3) measuring paper deformation coefficient of a cursor position in the manufactured paper; (4) designing and making a watermark net according to measuring results of the step (3); (5) making the fixed watermark paper by the watermark net manufactured in the step (4) via the fourdrinier. The invention further provides an improved fourdrinier. The watermark paper is manufactured by the fourdrinier, speed of the fourdrinier can be properly increased, productivity is increased, production cost is reduced, and considerable economic benefits and social benefits are gained.
Description
Technical field [0001] The invention relates to a method for manufacturing fixed watermark paper using a Fourdrinier paper machine, and at the same time relates to a modified Fourdrinier paper machine suitable for manufacturing fixed watermark paper, belonging to the field of anti-counterfeiting paper manufacturing. Background technique [0002] Watermark is the most widely used paper anti-counterfeiting. As one of the oldest anti-counterfeiting features, watermarks are widely used, not only for circulating bill paper, but also for common trademarks, labels, packaging, etc. However, due to the limitation of the existing watermark manufacturing process, the manufacturing cost of the watermark paper is high, which limits the popularization and application of the watermark paper in civilian use. [0003] Existing watermark manufacturing mainly uses rotary screen paper machines to manufacture full-page watermark paper and fixed watermark paper. Compared with full-page watermark paper...
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IPC IPC(8): D21F1/44D21F11/02
Inventor 韩勇王炳强韩汀王兴陈章永王彤王中杰邓洁刘树林张晓春张江华汪斌
Owner 中钞实业有限公司