Technique for producing window-open type broad safety line money paper by single-circle mesh paper machine

A rotary screen and paper machine technology, applied in paper machine, paper making, textile and paper making, etc., can solve the problems of difficult control of the upper and lower positions of the safety line, exposed lines of paper sheets, affecting product quality and yield, etc.
CN101082193AInactive Publication Date: 2007-12-05BAODING BANKNOTE PAPER CO LTD +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
BAODING BANKNOTE PAPER CO LTD
Publication Date
2007-12-05
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a technology of the single-round net paper machine to produce the fenestration-type wide safety line Bank Paper. It contains the following steps: distribute paper pulp on the round net part of the single-round net paper machine to form paper sheets. During the forming process, release the wide safety line clinging to the fenestration plate (2) of the round net part by the releasing frame (5). The paper sheets are sent from the round net part to the press part for dewatering. The press part adopts the vacuum composite pressing with three rolls and two pressure areas. The water can discharge quickly through the blanket oillets under the vacuum aspiration. Then, the paper sheets enter the dryer part to pass two groups of ten dryers for drying. After drying, the paper sheets enter the sizing part for sizing and the back dryer part for finishing. Finally, the paper sheets can achieve the better smoothness through the soft calendar and roll to the paper axis with the regulation size. The invention produces the fenestration-type wide safety line Bank Paper successfully by using the single-round net paper machine.
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Description

technical field

[0001] The invention relates to a process for producing banknote paper with a window-type wide security line, which can produce window-type banknote paper with a wide security line meeting the anti-counterfeiting and technical requirements on a single cylinder paper machine. Background technique

[0002] At present, the application of window-type wide security thread in the production of banknote paper as a popular anti-counterfeiting technology has attracted more and more attention from all over the world. The wider the security thread is, the more difficult it is to produce and the higher the anti-counterfeiting performance is. .

[0003] In the prior art, someone has used a single cylinder wire machine to produce window-type narrow security line (for example, 1.5 mm) banknote paper, yet the applicant has not heard of anyone using a single cylinder wire machine to produce window paper Type wide security thread banknote paper, wide security thread generally...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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