High definition enamelled paper possessing safety line and its making process

Abstract

The invention relates to a high definition copper paper board with a secure line and a manufacturing technique thereof. The copper paper board is formed by coating a high solid content dope combined by a white pigment and a cementing compound evenly on a base paper and being dried as well as rewound. The manufacturing technique comprises the following steps that: 1. a common offset paper is selected as a base paper, a coating machine is adopted to coat an ink absorbing layer dope formed by mixing the white pigment and the cementing compound; 2. a cast coater is adopted to coat a specular layer dope mixed by a silicasol or a colloidal alumina and the cementing compound on the surface of the ink absorbing layer dope after dried; 3. the process the same as the step 2 is performed, the secureline with the back surface applied by the glue is arranged at the designed position on the ink absorbing layer dope layer and below the specular layer dope by means of the match of a small-sized compression roller which is arranged for matching the cast coater; 4. a mirror cylinder of the cast coater is adopted to perform the pressing and glazing processes on the paper surface after the secondary coating after the paper is dried and dewatered; 5. the post sorting, cutting and rewinding processes are performed to form finished products.

Description

technical field [0001] The invention relates to the improvement of coated paper and its manufacturing process, in particular to the improvement of special coated paper with anti-counterfeiting function and its manufacturing process. Background technique: [0002] With the development of society and the diversification of economic activities, the use of coated paper with high-grade color printing performance is increasing, and the reduction of the printed image is required to be higher and higher. At the same time, it is also required to have a certain anti-counterfeiting function to protect the author's copyright from being violated. Traditional coated paper uses a special coated base paper as the base paper, coated with a layer of white paint made of calcium carbonate, china clay white pigments and binders. There are two types of one-side coating and double-side coating. After drying, it is polished by a super calender to make high-grade coated paper for printing. The coa...

AI Technical Summary

Problems solved by technology

The printing quality, printing cost, adaptability and anti-counterfeiting anti-counterfeiting functions of the increasing number of high-end books, picture albums, wrapping paper, and tickets can no longer meet the needs. How to use traditional and effective anti-counterfeiting technologies, such as the security thread used on banknotes, Applying on coated paper and further improving the printing quality, including adapting to digital electronic color printing, has become a topic of concern in this industry