New progress in the processing of domestic cigarette packages
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First, a few basic points of view
Preferred process and model for cigarette package printing
Gravure is the preferred process for cigarette package printing:
China's tobacco industry integration, brand compression will quickly appear in the "less varieties, large quantities" pattern.
High quality and stability will be the basic requirements for cigarette package printing. Gravure has unparalleled advantages, and the more complete the integration, the more obvious the advantages of gravure printing. More than 90% of the US cigarette packs are gravure printed.
Web gravure is the preferred model, more efficient than sheetfed presses, and has a more suitable process combination and wire processing (including gravure + offset combinations) than sheetfed presses. Therefore, a single cigarette pack printing press will exist for a long time. Other process and model situations will be very complicated.
Environmental protection has become the most important issue
Anti-counterfeiting requirements continue to increase, but environmental protection is more valued. The comprehensive concept is that the entire life cycle of a cigarette pack includes the entire process of production and use. Processing of recyclable degradation materials will receive continued attention. Transfer paper is one of the current hot spots. Water-based inks will be the basic goal. Flexible packaging is bound to be more popular.
Tobacco bag gravure processing equipment response measures
Electronic shaft drive has become a new technology platform for web gravure printing. It is one of the three key technologies of gravure printing machine (electronic shaft drive, printing trolley, sleeve type impression cylinder).
Fixed length stretching compound transfer production line
The holographic film has a fixed length stretching, a wet-line compounding, a wire connection or a non-wire transfer, which can significantly reduce the scrap rate and significantly reduce the cost.
Tobacco bag gravure processing equipment response measures
Adapting to the improvement of gravure structure, drying structure and efficiency of water-based ink, ink tank material, ink supply system structure and materials, it is expected that the amount of use will increase the soft-cutting equipment.
Second, relevant domestic progress
Domestic equipment competitiveness is reflecting
The technology platform is the same as that of foreign countries, and the international procurement is carried out; the performance indicators are quite close to the imported equipment; the more outstanding cost performance; the better targeted innovation; the more convenient service.
Take the cigarette printing machine as an example. In the past, all imported equipments, and now more and more domestic equipment, especially electronic shaft gravure printing machines, are rapidly becoming multi-purpose, standardized and serialized.
Third, domestic cigarette package gravure processing solutions
The most typical solution for the processing of cigarette packages:
Solution: connection wet composite + transfer + multi-color printing + cross-cut (or other connection processing) (import).
Features: high technology, high quality and high price.
Applications: High-end cigarette packaging, toothpaste boxes, shopping bags, etc.
Configuration type of domestic (smoke) printing and processing production line:
Unwinding + multi-color gravure + cross-cut (+ winding);
Unwinding + multi-color gravure (+ winding) + connecting (or not connecting) gardening die cutting;
Fixed length stretching wet compound + transfer + multicolor printing + cross cutting (+ winding).
The latest solution for cigarette package printing:
Solution: fixed length stretching wet compound + transfer + printing + cross cutting machine (+ winding).
Features: modular structure, patented technology, cost-effective
Modular - four modules: "zero speed" docking; fixed length stretching wet compound + transfer + (special unit); multi-color printing (with secondary registration function); post-printing unit (cross-cutting, Winding, etc.).
Patented technology - two key patents:
Patent 1: Composite transfer printing machine (domestic exclusive authorized production and sales)
Patent 2: Fixed length stretching wet laminating machine (Songde Company)
Cost-effective:
Performance indicators are at or near the level of foreign equipment;
The price is only 1/3-1/4 of the import.
Three basic steps:
Electronic shaft drive gravure printing machine + cross cutting machine;
Fixed length stretching wet laminating machine (+ stripping machine);
Connected production line.
Main technical features of fixed length stretching wet composite (+ stripping) machine:
Holographic film is arbitrarily set;
Double electric eye detection and automatic length confirmation;
Stretch roll servo drive;
Multi-stage independent automatic tension control.
S type double cooling roll;
Light roll coating or concave roll coating;
Dry heat source: electricity, steam, hot oil, natural gas, etc.;
Optional coating trolley, fault diagnosis information system or machine management system.
Fixed length stretching wet compounding (+ stripping) machine
Actual test results:
Setting length: 0.3mm.
Main features and matching of SDP7650-350 gravure production line
Electronic shaft drive;
"Zero speed docking" type unwinding device;
Connecting cross-cutting device;
Connection winding device
Adapt to water-based ink printing and glazing;
Main application: cigarette packaging.
The main technical parameters of SDP7650-350 gravure production line
Printing color group: 7 colors;
Printing substrate: paper 70g/m-450g/m2;
Material width: 650mm;
Maximum mechanical speed: 350m/min;
Range of diameter: medium] 20mm - ~ D300mm;
The maximum diameter of unwinding and winding: qbl550mm.
SDP7650-350 gravure production line performance indicators measured results:
The actual performance indicators of the SDP7650-350 gravure production line are tested by national testing agencies and users (paper: 230g/m').
Maximum mechanical speed: 350m/min;
The highest printing speed: 300m / min;
Varnish speed (waterborne varnish): up to 250m/min.