Practically improve press stability
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Whether using imported printing equipment or domestic printing equipment, the unstable performance of paper before printing is a big headache for many printers, especially gold or silver composite cardboard or transfer gold, silver, and laser paper. The main problems are as follows: due to temperature and humidity changes, it has been stretched and deformed before printing, and there is a ruffled edge; the surface coating varnish does not match the printing ink resin system, resulting in mutual dissolution; surface scratching is serious. These problems have brought different levels of difficulty to printing.
In order to avoid the above problems, Shenzhen Jinjia Color Printing Co., Ltd. has developed a production process integrating transfer, composite and nine-color UV gravure. The scientific research results enjoy the patent of the world gravure printing technology.
Not long ago, a rotary gravure production line using the research results has been settled in Shenzhen Jinjia Color Printing Co., Ltd., and the installation and commissioning work has been completed. The machine is manufactured by Cerutti, Italy. This is the first in China and the world's first rotary gravure production line integrating transfer, composite and nine-color UV gravure. It is named Jinjia Color Printing-960cerutti3288 (hereinafter referred to as Jinjia 3288).
First, equipment performance
The printing width of Jinjia 3288 gravure printing line is 400-820mm, which can be printed from 80g/m2 single-sided coated paper to 350g/m2 cardboard. The printing speed can reach up to 300m/min. From white card paper unwinding, transfer and composite film unwinding, glue bonding, oven drying, peeling, cooling, OPP and PET film winding, surface varnishing, to line printing (front and back laser positioning printing), UV printing, UV Over-oil, cut large sheets can be completed at one time. Glue and 9 printing units are driven independently.
The machine can complete the following processes:
(1) Complete transfer, peeling, printing (front and back printing, front laser positioning printing), UV printing, UV oiling, and cutting.
(2) Complete local transfer (equivalent to cold-hot or holographic anti-counterfeiting hot stamping), peeling, printing (front and back printing, frontal laser positioning printing), UV printing, over-UV oil, and cutting.
(3) Completion of composite, printing (front and back printing), UV printing, UV oil, and cutting.
(4) One-sided coated paper, white cardboard or gold and silver cardboard printing (front and back printing), UV printing, UV oil, and large sheeting.
(5) The milk carton is printed, oiled, and cut into large pieces.
(6) Partial transfer of the milk carton (equivalent to cold or holographic anti-counterfeiting hot stamping), printing, oiling, and cutting.
(7) The paper guide roller is made of special metal, and the surface is specially treated to print plastic packaging.
(8) Provide transfer paper and composite paper processing for sheetfed printing (offset, gravure, etc.).
Second, superiority
Solved the problem of the stability of printing paper, is the biggest advantage of Jinjia 3288 gravure production line. Before the line is printed at a printing speed of 150m/min, the paper is first combined with BOPP and PET film, and then dried by 6 sets of ovens, and stretched with appropriate tension. When it reaches the printing unit, the paper has been Invisible and variable. The use of the production line also solves a major problem in the prepress processing process, and eliminates the need to purchase metal paper from the packaging paper composite factory, eliminating some cumbersome processes, effectively saving time and reducing production costs.