High Speed T-Shirt Bag Plastic Paper Printing Machine Printing Press Printing Machinery Print Printer Stack Flexo Printing Machine for Packaging

Product Description

Model	OS650-5B	OS950-5B
Printing Speed	5-60m/min	5-60m/min
Printing Color	5 Colours	5 Colours
Max.Web Width	660mm	960mm
Max.Printing Width	650mm	950mm
Max.Unwinding Diameter	1400mm	1400mm
Max.Rewinding Diameter	1400mm	1400mm
Printing Girth	250-580mm	250-580mm
Precision Of Chromatography	±0.10mm	±0.10mm
Dimensions (K*W*H)	4000*1700*2700mm	4000*1700*2700mm
Machine Weight	6000kg	6000kg

Q1: What is a flexographic printing machine?
A: A flexographic printing machine uses flexible relief plates to print on a variety of substrates such as paper, plastic film, and metal foil. It is widely used in packaging, labels, and newspapers.

Q2: How does flexographic printing differ from other printing methods (e.g., offset, gravure)?
A: Flexographic printing is faster, more cost-effective, and more versatile in terms of materials. Compared to gravure, it has lower plate-making costs. Compared to offset, it can print on a wider range of substrates.

Q3: What are the main components of a flexographic printing machine?
A: Key components include the unwinding system, printing cylinders, anilox roller, doctor blade system, ink delivery system, drying units, rewinding system, and electronic control system.

Q4: What is an anilox roller and what is its function?
A: The anilox roller transfers a consistent amount of ink to the printing plate. Its cell count, angle, and volume directly affect ink density and print quality.

Q5: What types of ink are used in flexographic printing?
A: Mainly water-based and UV inks. These are more environmentally friendly than solvent-based inks and offer fast drying times, especially suitable for food packaging.

Q6: How is registration accuracy maintained in flexographic printing?
A: Through servo motors, tension control systems, and automatic registration control technology that ensure precise alignment between color stations.

Q7: How to deal with ink spots or smudges during printing?
A: Check the cleanliness of the anilox roller, inspect the plate for damage, and ensure the ink is free of impurities or bubbles. Replace filters if necessary.

Q8: What routine maintenance does a flexo press require?
A: Regular cleaning of the ink system, inspection and replacement of worn doctor blades, lubrication of moving parts, tension system calibration, and scheduled part replacements.

Q9: What materials are suitable for flexographic printing?
A: Plastic films (e.g., PE, BOPP), paper, aluminum foil, self-adhesive materials, paper bags, paper cups, and corrugated board.

Q10: What kinds of products are typically printed using flexo?
A: Food packaging bags, beverage labels, hygiene product packaging, tissue wrap, courier bags, wrapping paper, and more.

Q11: What factors should be considered when choosing a flexo press?
A: Consider printing width, number of color units, printing speed, level of automation, online inspection capabilities, and after-sales support.

Q12: Is flexographic plate-making expensive?
A: Flexo plate-making is cheaper than gravure but slightly more expensive than offset. However, modern digital plate-making improves efficiency and reduces long-term costs.